Saturday, 30 April 2022

'Maladaptive Daydreaming' Could Be a Distinct Psychiatric Disorder, Scientists Claim

CARLY CASSELLA, 29 APRIL 2022

(Jeannette Rose Photography/Getty Images)

Some people with ADHD, or attention deficit hyperactivity disorder, could be better served with a diagnosis of 'maladaptive daydreaming', according to a recent study.

Daydreaming is a normal phenomenon where the mind becomes immersed in an imaginary environment. For most, it's a fun, short distraction from the real world, but for others, daydreaming can become excessive, lasting even hours on end.

In fact, some people can spend up to half their waking hours in their own internal world, which, as you can imagine, makes it difficult to participate in daily life.

Maladaptive daydreaming (MD) is not currently considered a psychiatric disorder in its own right; instead, its characteristic influence over attention means it's usually lumped in as a symptom of disorders such as ADHD.

Among people who experience MD, studies show around 77 percent are also diagnosed with ADHD. But just because these conditions overlap, doesn't mean they are the same thing. Psychologists have recently found evidence MD is actually its own distinct disorder.

ADHD is typically characterized by a "disregulated attention system", which can lead to periods of hyperfocus and seeming inattention. Maladaptive daydreaming, on the other hand, is somewhat more like a behavioral addiction, drawing the mind back into complex and vivid states of imagination.

Among a small group of 83 people with ADHD, researchers found just over 20 percent also met the criteria for MD; that's much lower than the percentage of people with MD who also meet the criteria for ADHD.

This suggests the two disorders really are distinct from one another.

"If we would have found symmetrically high rates of MD among ADHD adults, it would have been fair to claim that the newer concept of MD is superfluous, as it is almost equivalent to the already-existing diagnosis of ADHD," the authors explain.

"However, the asymmetry found in this study agrees with our theoretical claim that MD is an independent mental phenomenon, which often creates a deficit in attention as a side-effect."

Further research is needed to support the idea of MD as a distinct psychiatric disorder, but evidence from this small study suggests MD is essentially different from typical ADHD.

In questionnaires, participants who met the criteria for maladaptive daydreaming said they had difficulty giving their full attention to a task until it was completed, but not in the same way as described by ADHD markers.

Instead, participants said they self-directed their own daydreams, absorbing themselves in vivid and fanciful situations that made it hard to focus on external tasks.

Loss of attention seemed to be secondary to their compulsion for daydreaming.

"We maintain that the diagnosis of ADHD does not adequately describe the problem in such cases," the authors conclude.

The hypothesis is further supported by the fact that participants who met the criteria for both MD and ADHD reported significantly greater levels of psychological distress than those who only met the criteria for ADHD.

According to the authors, this suggests that excessive daydreaming could be rooted in a desire to escape depressive thoughts, low self-esteem, or loneliness.

That finding is important because if MD and ADHD have different underlying mechanisms, it's possible they might not respond to the same interventions.

"If your ADHD stems from general mind-wandering with ever-changing distractions (which is characteristic of typical ADHD), you may need different treatment than if you find yourself compulsively drawn to engage in elaborate, narrative, vivid, and highly emotional fantasies (characteristic of MD)," psychologist Nirit Soffer-Dudek explained to PsyPost.

"If it is the latter, we suggest seeking psychological help, and introducing to the clinician the concept of MD, which has been researched extensively in the past years, but is still quite unknown."

Without a proper understanding of MD, it's not even clear how many people might have the disorder.

During COVID-19 lockdowns, MD seems to have become a bigger issue, adding weight to the idea that daydreaming is our mind's way of coping with trauma, and not simply indulging in wandering thoughts.


Recommend this post and follow
The birth of modern Man

Antibiotics in infancy may weaken response to childhood vaccines ** A single course of antibiotics affects the gut microbiota of infants

APRIL 27, 2022, by Amy Norton



Babies and toddlers who've been given antibiotics might have a less vigorous immune response to routine childhood vaccinations, new research warns.




The study is the first to suggest that antibiotics might dampen youngsters' ability to generate infection-fighting antibodies in response to vaccination.

Experts cautioned that more research is necessary, and it's not clear whether antibiotic use is linked to higher rates of breakthrough infections.

But the study builds on earlier work, in lab animals and one study of adults, hinting at a way that antibiotics could hinder antibody production: The drugs temporarily kill off some of the beneficial bacteria that live in the gut, and those bugs play a key role in immune function.

Routine childhood vaccines against diseases like polio, measles, mumps, and chickenpox are highly effective. They work by exposing the body to killed or weakened versions of a germ (or part of it), which trains the immune system to fight the foreign invader if a child later encounters it. Critically, vaccines spur the immune system to generate antibodies that recognize particular proteins on the germ's surface.

But it has long been clear that children vary in the strength of their antibody response to vaccination. The reasons for that variance are largely unknown.

"Until now, it's been a big black box," said senior researcher Dr. Michael Pichichero. "Some people used to say it was bad luck, which isn't a very good answer."

According to Pichichero, his team's findings make a compelling case that antibiotic use is a factor. And they underscore the importance of using the medications only when necessary, he said.

The study involved 560 babies and toddlers who had blood samples taken at their routine checkups between the ages of 6 months and 2 years. The researchers used those to measure the children's antibody responses to four routine childhood vaccinations.

Overall, 342 youngsters (or 61%) received at least one antibiotic prescription. And those children were more likely to show vaccine antibody responses that were "sub-protective," versus children who'd received no antibiotics.

Among 12-month-olds who'd been given antibiotics, for example, just over 20% had a sub-protective antibody response to some antigen in the vaccines they'd received, the investigators found.

The researchers also found that the more antibiotic prescriptions a child received in the first year of life, the lower the vaccine antibody levels at the ages of 12 to 15 months. Each prescription was linked to a 6% to 11% dip in antibody levels, depending on the vaccine.

"I do think this study has important implications," said Pichichero, who directs the Rochester General Hospital Research Institute, in Rochester, N.Y. The findings were published online April 27 in the journal Pediatrics.

It underscores the importance of "judicious" antibiotic use—prescribing the drugs only when necessary, he said.

Pichichero stressed that antibiotics only treat bacterial infections, and should not be used for viral infections like the common cold or flu. So, parents should not push their pediatrician for an antibiotic prescription for those types of ills, he noted.

That is the key message for parents, agreed Dr. Octavio Ramilo, chief of infectious diseases at Nationwide Children's Hospital in Columbus, Ohio.

"We know that excessive antibiotic use is not good," he said.

Ramilo called the antibody findings "very provocative," but cautioned that more studies are needed to understand whether and how antibiotics affect the immune response to vaccination.

"We do know the gut microbiome helps educate the immune system," said Ramilo, who co-wrote an editorial published with the findings.

But, he noted, the study could not show whether changes in children's gut bacteria explained the lower antibody levels linked to antibiotic use. Future studies, Ramilo said, could investigate that by collecting stool samples from youngsters.

He also noted that the ultimate consequence of the lower antibody response is unclear: Did children given antibiotics have a higher rate of any vaccine-preventable infections?

Even though a course of antibiotics can disturb the gut's normal bacterial makeup, it does rebound, Pichichero noted.

According to Ramilo, one question is how recent would any antibiotic use have to be to affect a child's antibody response to vaccination.

What is clear, though, is that parents should have their child vaccinated on schedule. Both doctors cautioned against delaying a child's next dose because of a recent antibiotic prescription.

--------------------------------------------------------------------------

A single course of antibiotics affects the gut microbiota of infants

APRIL 29, 2022, by University of Helsinki
Graphical abstract. Credit: Journal of Fungi (2022). DOI: 10.3390/jof8040328

A study recently completed at the University of Helsinki and published in Journal of Fungi revealed that the fungal microbiota in the gut is more abundant and diverse in children treated with antibiotics compared with the control group even six weeks following the start of the antibiotic course. In light of the findings, a reduction in the number of gut bacteria as a result of antibiotic therapy reduces competition for space and leaves more room for fungi to multiply.

"The results of our research strongly indicate that bacteria in the gut regulate the fungal microbiota and keep it under control. When bacteria are disrupted by antibiotics, fungi, Candida in particular, have the chance to reproduce," says Ph.D. student Rebecka Ventin-Holmberg from the University of Helsinki.

A new key finding in the study was that the changes in the fungal gut microbiota, together with the bacterial microbiota, be part of the cause of the long-term adverse effects of antibiotics on human health.

Long-term changes in infant gut microbiota

Antibiotics are the most commonly prescribed drugs for infants. They cause changes in the gut microbiota at its most important developmental stage. These changes have also been found to be more long-term compared with those of adults.

"Antibiotics can have adverse effects on both the bacterial and the fungal microbiota, which can result in, for example, antibiotic-associated diarrhea," Ventin-Holmberg says.

"In addition, antibiotics increase the risk of developing chronic inflammatory diseases, such as inflammatory bowel disease (IBD), and they have been found also to have a link to overweight," she adds.

These long-term effects are thought to be caused, at least partly, by an imbalance in the gut microbiota.

In the gut, everything is connected

The recently published study involved infants with a respiratory syncytial virus (RSV) infection who had never previously received antibiotics. While some of the children were given antibiotics due to complications, others received no antibiotic therapy throughout the study.

"Investigating the effects of antibiotics is important for the development of techniques that can be used to avoid chronic inflammatory diseases and other disruptions to the gut microbiota in the future," Ventin-Holmberg emphasizes.

While the effect of antibiotics on bacterial microbiota has been previously investigated, studies on fungal microbiota have been scarce. The findings of this study indicate that fungal microbiota may also have a role in the long-term effects of imbalance in the gut microbiota.

"Consequently, future research should focus on all micro-organisms in the gut together to better understand their interconnections and to obtain a better overview of the microbiome as a whole," Ventin-Holmberg notes.


Recommend this post and follow
The Life of Earth

From seawater to drinking water, with the push of a button

APRIL 28, 2022, by Adam Zewe, Massachusetts Institute of Technology

The user-friendly unit, which weighs less than 10 kilograms and does not require the use of filters, can be powered by a small, portable solar panel. 
Credit: M. Scott Brauer

MIT researchers have developed a portable desalination unit, weighing less than 10 kilograms, that can remove particles and salts to generate drinking water.

The suitcase-sized device, which requires less power to operate than a cell phone charger, can also be driven by a small, portable solar panel, which can be purchased online for around $50. It automatically generates drinking water that exceeds World Health Organization quality standards. The technology is packaged into a user-friendly device that runs with the push of one button.

Unlike other portable desalination units that require water to pass through filters, this device utilizes electrical power to remove particles from drinking water. Eliminating the need for replacement filters greatly reduces the long-term maintenance requirements.

This could enable the unit to be deployed in remote and severely resource-limited areas, such as communities on small islands or aboard seafaring cargo ships. It could also be used to aid refugees fleeing natural disasters or by soldiers carrying out long-term military operations.

"This is really the culmination of a 10-year journey that I and my group have been on. We worked for years on the physics behind individual desalination processes, but pushing all those advances into a box, building a system, and demonstrating it in the ocean, that was a really meaningful and rewarding experience for me," says senior author Jongyoon Han, a professor of electrical engineering and computer science and of biological engineering, and a member of the Research Laboratory of Electronics (RLE).

Joining Han on the paper are first author Junghyo Yoon, a research scientist in RLE; Hyukjin J. Kwon, a former postdoc; SungKu Kang, a postdoc at Northeastern University; and Eric Brack of the U.S. Army Combat Capabilities Development Command (DEVCOM). The research has been published online in Environmental Science and Technology.

MIT researchers have created a portable desalination unit that can automatically remove particles and salts simultaneously to generate drinking water. “This is really the culmination of a 10-year journey that I and my group have been on,” says senior author Jongyoon Han, right, pictured with Junghyo Yoon, seated. 
Credit: M. Scott Brauer



Filter-free technology

Commercially available portable desalination units typically require high-pressure pumps to push water through filters, which are very difficult to miniaturize without compromising the energy-efficiency of the device, explains Yoon.

Instead, their unit relies on a technique called ion concentration polarization (ICP), which was pioneered by Han's group more than 10 years ago. Rather than filtering water, the ICP process applies an electrical field to membranes placed above and below a channel of water. The membranes repel positively or negatively charged particles—including salt molecules, bacteria, and viruses—as they flow past. The charged particles are funneled into a second stream of water that is eventually discharged.

https://youtu.be/x0fpwlRPZRY

The process removes both dissolved and suspended solids, allowing clean water to pass through the channel. Since it only requires a low-pressure pump, ICP uses less energy than other techniques.

But ICP does not always remove all the salts floating in the middle of the channel. So the researchers incorporated a second process, known as electrodialysis, to remove remaining salt ions.

Yoon and Kang used machine learning to find the ideal combination of ICP and electrodialysis modules. The optimal setup includes a two-stage ICP process, with water flowing through six modules in the first stage then through three in the second stage, followed by a single electrodialysis process. This minimized energy usage while ensuring the process remains self-cleaning.

"While it is true that some charged particles could be captured on the ion exchange membrane, if they get trapped, we just reverse the polarity of the electric field and the charged particles can be easily removed," Yoon explains.

They shrunk and stacked the ICP and electrodialysis modules to improve their energy efficiency and enable them to fit inside a portable device. The researchers designed the device for nonexperts, with just one button to launch the automatic desalination and purification process. Once the salinity level and the number of particles decrease to specific thresholds, the device notifies the user that the water is drinkable.

The researchers also created a smartphone app that can control the unit wirelessly and report real-time data on power consumption and water salinity.

Beach tests

After running lab experiments using water with different salinity and turbidity (cloudiness) levels, they field-tested the device at Boston's Carson Beach.

Yoon and Kwon set the box near the shore and tossed the feed tube into the water. In about half an hour, the device had filled a plastic drinking cup with clear, drinkable water.

"It was successful even in its first run, which was quite exciting and surprising. But I think the main reason we were successful is the accumulation of all these little advances that we made along the way," Han says.

The resulting water exceeded World Health Organization quality guidelines, and the unit reduced the amount of suspended solids by at least a factor of 10. Their prototype generates drinking water at a rate of 0.3 liters per hour, and requires only 20 watts of power per liter.

"Right now, we are pushing our research to scale up that production rate," Yoon says.

One of the biggest challenges of designing the portable system was engineering an intuitive device that could be used by anyone, Han says.

Yoon hopes to make the device more user-friendly and improve its energy efficiency and production rate through a startup he plans to launch to commercialize the technology.

In the lab, Han wants to apply the lessons he's learned over the past decade to water-quality issues that go beyond desalination, such as rapidly detecting contaminants in drinking water.

"This is definitely an exciting project, and I am proud of the progress we have made so far, but there is still a lot of work to do," he says.

For example, while "development of portable systems using electro-membrane processes is an original and exciting direction in off-grid, small-scale desalination," the effects of fouling, especially if the water has high turbidity, could significantly increase maintenance requirements and energy costs, notes Nidal Hilal, professor of engineering and director of the New York University Abu Dhabi Water research center, who was not involved with this research.

"Another limitation is the use of expensive materials," he adds. "It would be interesting to see similar systems with low-cost materials in place."


Recommend this post and follow
The Life of Earth

Friday, 29 April 2022

Nutrition News: Does morning coffee kill your good gut bacteria?

 

Does morning coffee kill your good gut bacteria?


All coffee lovers can benefit from improving the balance of good bacteria in the gut without any special effort, but it can be tricky. Here's what you need to know.


Educate to indoctrinate: Education systems were first designed to suppress dissent

APRIL 29, 2022, by University of California - San Diego

Credit: CC0 Public Domain

Public primary schools were created by states to reinforce obedience among the masses and maintain social order, rather than serve as a tool for upward social mobility, suggests a study from the University of California San Diego.

The study in the journal American Political Science Review finds historical patterns from 1828 to 2015, across many countries, of education reforms, including the rise of mandatory primary schooling itself, being implemented after instances of social unrest. The research also sheds light on the current controversy in the U.S. over teaching critical race theory.

"The key prediction of the research is that when there are periods of internal conflict, states will introduce education reform that is designed to indoctrinate people to accept the status quo," said the study's author Agustina S. Paglayan, a UC San Diego assistant professor with a joint appointment in the Department of Political Science/School of Social Sciences and the School of Global Policy and Strategy.

Paglayan added that while some could interpret this as evidence that states were trying to solve people's economic woes by investing in education after violent rebellions, historical documents tell a different story.

"My research reveals violence can heighten national elites' anxiety about the masses' moral character and the state's ability to maintain social order. In this context, public education systems were created and expanded to teach obedience," Paglayan said.

A recent example in the U.S. of the government turning to education reform after encountering resistance is when former President Donald J. Trump created The 1776 Commission after the widespread Black Lives Matter protests in the summer of 2020. The commission was charged with promoting "patriotic education," Paglayan said, to supposedly unite Americans.

While the commission was eliminated on the first day President Joseph R. Biden took office, its recommendations continue to shape education reform efforts in many states, Paglayan says, pointing to a wave of different state bills that ban public schools from teaching about systemic racism.

The focus of Paglayan's study is on non-democracies in Europe and Latin America; however, it includes evidence dating back to the late 18th century that democracies, including the U.S., used primary education as a policy tool to prevent future rebellion and promote long-term order.

Paglayan spent seven years conducting the study. Her findings are based on quantitative data from 40 different countries that include school enrollment numbers and, for a subset of countries, the numbers of schools created and the levels of education expenditures. She combined these data with qualitative evidence based on the language found in school textbooks and curricula, plus the content of parliamentary debates, as well as politicians' speeches, letters and other political writings.

She cites a letter that Thomas Jefferson wrote to James Madison as evidence that the U.S. looked to primary schools after a period of insurrection that threatened established institutions.

"After several violent uprisings in the late 18th century, such as Shays' Rebellion and the Whiskey Rebellion, politicians became increasingly interested in education. Soon after Shays' Rebellion, Thomas Jefferson wrote to James Madison relaying that it should be taught in schools that violence is an illegitimate way for citizens to express discontent and that it should be drilled into them to express it by voting," Paglayan said.

The research explains why primary education systems precede the rise of modern democracy and were first created by non-democratic regimes.

For example, absolutist Prussia was among the first countries in the world to introduce tax-funded, compulsory primary education. The Prussian education system was conceived as a long-term solution to the problem of social unrest, as revealed by peasant rebellions in the 1740s-1750s. Paglayan documents several cases where other countries were inspired by Prussia's education system, including the U.S.

She also finds of patterns of schools becoming compulsory in many countries after parents resisted sending their children to school to "shape their moral character" at a time when children were often needed at home to provide labor.

She points out that during most of the history of public schooling, secondary schools and universities were reserved for the upper classes; however, through primary education, states could easily influence the masses' children to respect authority, the state and its laws.

"Children are like sponges," Paglayan said. "Politicians thought that primary schools could shape behavior by instilling fear of punishment for misbehavior, or conversely, by promoting rewards for proper behavior. The mere act of attending school every day, sitting still, not speaking out of turn and following schedules, routines and rituals, like marching in silence from classroom to breakroom, would make individuals internalize from a young age what constituted good manners and civil behavior."


Recommend this post and follow
The birth of modern Man

We must halve our energy use to avoid climate catastrophe, according to new modelling

APRIL 28, 2022, by Ben Knight, University of New South Wales

If global energy consumption continues its trajectory, renewable energy won’t be able to replace all fossil fuels by 2050. 
Credit: Unsplash.

Renewable energy transition won't come fast enough to solve the climate crisis—we also need to reduce global energy consumption, according to new research from UNSW Sydney.

The research, published recently in Climate Policy, models different energy-use scenarios for reducing global energy-related CO2 emissions to zero by 2050. It found that simply substituting fossil fuels with renewable energy at current energy usage levels is no longer enough.

To keep global heating below 1.5°C—the level necessary to avoid irreversible damage—total energy consumption itself needs to halve over the next three decades based on 2019 levels. Furthermore, to keep temperature from overshooting a 1.5°C increase by 2050, global CO2 emissions must decline by about half by 2030.

Despite significant growth in renewable energy, it is being outstripped by the parallel increase in total energy consumption, primarily driven by growth in fossil fuels for areas like transportation and heating. And while energy usage did slightly decline during 2020 due to the pandemic, the demand has since returned.

"We have a situation where renewable electricity and total energy consumption are growing quite rapidly alongside one another. So renewables are chasing a retreating target that keeps getting further away," says Mark Diesendorf, author of the study and Honorary Associate Professor at the School of Humanities & Languages, UNSW Arts, Design & Architecture.

"The research shows it is simply impossible for renewable energy to overtake that retreating target. And that's no fault of renewable energy. It's the fault of the growth in consumption and the fact that action has been left too late."

Transitioning in time

A/Prof. Diesendorf says when it comes to the renewable energy transition, we're underestimating the battle against time.

"There is no doubt that we could transition to 100 percent renewable energy and that it would be affordable. Technologies such as wind and solar continue to get cheaper. The problem is replacing all fossil fuels as the demand for energy consumption keeps growing," A/Prof. Diesendorf says.

While there are many technological policies that support a transition to 100 percent renewable energy, most are not designed to reduce energy consumption. Furthermore, many rely on technologies such as CO2 capture, which remains speculative and untested on a large scale.

Instead, A/Prof. Diesendorf suggests that climate change can't be solved without significant social changes that curb energy consumption—something that has not been widely considered to date.

"To make the rapid transition, we will need to supplement the technological changes. We need to start reducing global energy consumption now, which means we need to make necessary social and economic changes," A/Prof. Diesendorf says.

Socioeconomic-led change

While the target of halving energy consumption globally sounds impossible on the surface, A/Prof. Diesendorf says it's possible with the right policy approaches.

"We would only need to go to the levels [of energy use] of a few decades back with the smarter and cleaner technologies of today. It does not mean going back to living in caves. But it does mean abandoning the belief of conventional economics that eternal growth is possible on a planet with finite resources."

Collectively using less energy would likely have a flow-on effect of slowing economic growth, according to A/Prof. Diesendorf.

"If energy consumption is reduced, it's likely that economic consumption will also go down. But there are many things that governments could do to ensure that it will not inconvenience people, provided the right incentives are given."

Measures like environmental and carbon taxes, wealth and inheritance taxes can help drive reductions in energy consumption, while a shorter working week, job guarantees and increased government expenditure on poverty reduction, green infrastructure and services like public transportation and social housing would compensate people, he says.

"Having a set of universal basic services would mean there is less demand for very high-income jobs, which correspond to very high energy consumption."

But while individual actions have their place, being a responsible citizen alone will not be enough. Instead, we need governments of the world to co-operate and lead the change, A/Prof. Diesendorf says.

"I think the best thing people can do is demand that governments and other political parties get serious…because time has run out."

At a local level, he says we need to reduce the political power of corporations that continue to push the increasing use of fossil fuels.

"Having a strong federal integrity commission, a ban on large political donations, and stronger constraints on the "revolving door" between politicians and political advisors and the fossil fuel industry will also help."


Recommend this post and follow
The birth of modern Man

HISTORIC FREEZE RETURNS TO SE ASIA; + SNOW, RAIN, COLD KEEPS U.S. FARMERS FROM PLANTING CORN, YET AMERICA CONTINUES TO SELL TO CHINA

APRIL 29, 2022 CAP ALLON


HISTORIC FREEZE RETURNS TO SE ASIA

The first week-or-so of May will see another unusually frigid mass of polar cold sweep Southeast Asia.

The cold air is forecast to descend as far south as Vietnam, Laos and Thailand.

After recently breaking its low temperature record for April, Laos is expected to bust its record low for May, too.

GFS 2m Temperature Anomalies (C) April 29 – May 1 [tropicaltidbits.com].

Also, shifting to South America, a cold front is advancing ‘up’ the continent with frost noted in Patagonia and also a remarkable -3.2C (26F) logged at San Antonio Oeste, Argentina. Temperatures will drop sharply as we enter the weekend, even at tropical latitudes — a chill that will threaten to further reduced already ropy-looking Argentinian and Brazilian crop estimates.

And I’ll conclude this brief southern hemisphere roundup with Australia where a fierce blast of polar cold is also on the cards as we enter early May:

SNOW, RAIN, COLD KEEPS U.S. FARMERS FROM PLANTING CORN

Late-season snow, heavy rains, and record cold are resulting in mounting planting delays across the U.S. (and Canada). “It’s just too cold for corn,” said Iowa farmer Kelly Nieuwenhuis, who farms 3,000 acres in O’Brien County.

Nationally, the planting pace is dragging, with only 7% of corn acreage and 3% of soybeans planted through April 24–less than half the acres planted at this time last year, reported the USDA–a gov agency tasked with stabilizing markets.

Focusing in on Iowa, America’s largest corn grower, this year is seeing the state’s slowest planting pace since 2013.

Adding to the planting pressures are global fertilizer, pesticide and herbicide shortages; and while I consider these inputs poisons, they are required by our modern, mono-cropping agricultural industry to achieve anything like decent yield: for every 1% decline in fertilizer usage there is a corresponding 1% decline in yield (with similar numbers for pesticides and herbicides).

Farmers already are complaining about fertilizer prices, which have jumped 300% or more due to supply chain concerns. In addition, the U.S. has imposed trade sanctions on Russia, a major exporter of fertilizers.

Nieuwenhui said some growers are worried about whether they’ll have fertilizer for next year’s growing season.

“It has everyone on edge,” he said. “They’re not sure how those supply chain issues will work out.”

Russia’s invasion of Ukraine (two agricultural powerhouses), combined with planting uncertainty elsewhere (including the U.S., Argentina, Brazil and Kazakhstan), is driving food prices higher and higher, globally. Ukraine is the world’s seventh-largest corn producer, eighth-largest wheat grower and the global leader in sunflowers — Ukraine and Russia combined provide approx. 30% of the total global grain supply, reductions here impact the entire world.

U.S. farmers have until early-May to plant corn before worries of lost yields begin being realized, with the window for soybeans extending until late May or early June.

“About the third week of May, you’re guaranteed to have some yield loss (on corn)”, said Mark Licht, an Iowa State University assistant agronomy professor. Then after that, Nieuwenhuis added: “People start to get nervous.”

May commences this weekend and the latest forecasts (shown below) are suggesting further delays.

Large swathes of the Midwest are expected to see severe cold and heavy rain over the next week, with Iowa expecting up to 1.5 inches of precipitation, according to Justin Glisan, the state climatologist.

Equally troublesome is Iowa’s soil temperature which is approx. 6F below average this month. It’s usually in the low to mid-50s this time of year, added Glisas, but this month looks like it will be among the top 10 coldest Aprils on record.

And May isn’t looking much better:

GFS 2m Temperature Anomalies (C) April 28 – May 9 [tropicaltidbits.com].

Additional rounds of late-season snow are also on the cards for many:

GFS Total Snowfall (inches) April 29 – May 15 [tropicaltidbits.com].

The Consumer Price Index climbed 8.5% in March, the largest increase since 1981. This was predominantly driven by energy and fuel rises, but spiraling food prices also had an impact with farm goods making up about 20% of every dollar spent at the grocery store.

Additionally, corn and soybeans are used to feed livestock, either directly or indirectly: higher grain prices = higher meat prices.

Yet while the risk of shortages mount…

…AMERICA CONTINUES TO SELL TO CHINA

Another 1.09 million mt of US corn has been sold to China –the fourth significant order this month– raising expectations that the Asian importer is turning to U.S. supply to help plug the loss of supply from Ukraine.

China has raced to the top of the global list of corn importers, and imported just under 8 million mt of Ukrainian corn in the 2021 calendar year, according to the Agricensus Export Dashboard. However, the Russian invasion has curtailed exports, with Ukraine’s major deep sea ports either blockaded or severely damaged, making it impossible to load the panamax vessels that typically ply that route.

The Chinese have been increasing their purchases each week through April.

“Old crop Ukrainian business was canceled. And they had to buy… one way or another,” said a trader.

Beside turning to U.S. corn, China has also opened its gates to corn imports from Myanmar, with the volume bought in March surging 640% versus the same point of last years.

“I suspect there will be additional purchases still to come… China has little coverage for June-Aug, as well as Sep-Jan. There is still a lot of work to be done… A storm is brewing and the world’s consumers need to wake up,” one broker said.

That shortage has also renewed rumors about the possibility that Brazilian corn could finally be allowed as an export option for China, perhaps even within the next month (pending strict GMO checks). However, given the delayed planting and poor yields mounting across South America, Brazil accepting any large order from China would, as they would re. the U.S., raise eyebrows; but as we see time and time again, nation’s are more than willing to risk their own domestic supply in order to fulfill contracts.


Recommend this post and follow
The Life of Earth

Farmers fear serious seeding setback

By: Gabrielle Piché, Wednesday, Apr. 27, 2022

MIKE DEAL / WINNIPEG FREE PRESS
A tractor keeps a pump running as it removes water from a farmer’s field into Wavey Creek close to Sutherland Road and Highway 8, Tuesday afternoon.

Producers worry as rain, snow keep fields soaked

Last year, Manitoba’s agriculture community was parched and praying for rain. Now, it’s begging for the storms to stop.

“Any moisture at this point is not helpful at all,” said Jeff Hamblin, a farmer near Morris.

The town is preparing for a flood: weather forecasts predict another Colorado low dumping rain on Manitoba after back-to-back weekends of precipitation and a blizzard-filled winter.

About half of Hamblin’s 6,000 acres will be underwater if projections become reality, he said.

The way it looks like it’s going to work out, it’ll probably delay seeding for at least a month,” he said. “That’ll end up costing us a lot of money.”

He typically starts planting around April 23. Beginning seeding after this week means a big decrease in cereal yields like oats and barley, Hamblin said.

Crops put in late could be subject to death by fall frost, he added.

“If the taps turned off here for the next month, it’d be perfect,” he said of the weather. “Let us get some temperatures back up, let the soil warm up and dry out, and let us get that crop in the ground.”

He’s been considering changing his crops because of the late start. But, he fertilized for specific plants last fall, he’s already ordered seed and he’s made pre-sales to wheat elevators.

Flooding has already damaged his fields. It’s erased the drainage ditches Hamblin said it takes hundreds of hours to create.

“We’ll pray for no excess moisture during the growing season, and then in the fall, hopefully we can restore some of that drainage,” he said.

Shortages, drought and war have contributed to higher commodity prices, Hamblin noted. He’d hoped a plentiful crop season could be the time to make good money.

“We don’t know what next year might bring,” he said. “If our cost of production goes up and commodities drop off, we could be in the situation where we can’t make any money… I think we were all hoping for the real Hail Mary this year.”

Over in Glenboro, Andrea Hamilton is putting more labour into caring for her 170 cows than usual. It’s calving season.

“We’re not prepared for (the weather),” she said. “That’s why we don’t calve in January and March.”

She said she’s been lucky — her farm is on sand, which can handle moisture better, and she has a calf shelter. Still, she’s been checking on her calves more because of the weather.

Hamilton said she has friends who monitor their calves throughout the cold nights and drive to their herds in vehicles they haven’t used for such purposes before, like tractors. Some have to dig their way to the animals.

“When there’s storm systems that come through, they have to get out there hourly,” said Carson Callum, general manager for the Manitoba Beef Producers.

“They’ve got to make sure (the calves) have access to shelter as best they can, to get out of the wind and the snow and the rain.”

Over 1,000 calves have taken ill — with many dying — due to the weather, Callum said. Farmers have been sheltering the young cows in their trucks and homes to keep them safe, he added.

JOHN WOODS / WINNIPEG FREE PRESS
Wet fields just west of Morris Tuesday.

Roghly 400,000 cows on 6,000 beef farms call Manitoba home, he said. Another worry is feed: cows are usually grazing grass by this time. Some farmers are running out of stockpiled hay and grain.

“Any feed that’s left out there right now is very high priced, to the point where it’s not really feasible but you have to keep your cattle alive,” said Lawrence Knockaert, chairman of the Manitoba Forage and Grassland Association.

He’s hoping government will extend the Livestock Feed and Transportation Drought Assistance program, which provided reimbursement for winter feed costs up to April 15.

Knockaert, who lives in Bruxelles, said his area is “sitting pretty nice” with the precipitation levels.

“We needed the rain,” he said. “There was cracks in the fall in the pastures that were half (an) inch wide.”

But, it’s been too much for other regions, he noted.

Callum called the latest rain and snow a “double-edged sword”: the added moisture is good long term, but the pooling water and storms have been challenging.

Most of the recent precipitation has become runoff or pooling, according to Mario Tenuta, a senior industrial research chair in the University of Manitoba’s soil science department.

“The water has nowhere to go right now,” he said, adding the soil is still frozen a few inches below the surface.

Rains last fall provided a bit of relief after a summer of drought, Tenuta said. But, the current above ground water is too much, he said.

“If the soil does become saturated, which it likely will, then it’s going to… delay planting because the farmers can’t get onto the soil.”

He predicts the soil will warm this week, allowing more water to enter. So, while producers can’t trek their fields, weeds can flourish, absorb nitrogen and take space. Additionally, a mix of warm and wet soil could reduce already distributed fertilizer, Tenuta said.

“Right now, nitrogen is extremely, extremely expensive,” he said.

Hamblin from Morris said he’d pay $60 to $70 per acre for fertilizer; now, he’s looking at $200 for the same area.

“Ideally, what I’d like to see is the surface water drains sideways, laterally to ditches, drains and leaves,” Tenuta said. “But, if the Red River is very high, that may not happen very well.”

Both Morgan Cott from the Manitoba Crop Alliance and Bill Campbell, president of the Keystone Agricultural Producers, hope the forecast rain passes Manitoba this weekend.

“Like a lot of things in life, timing and balance are very important,” Campbell said. “Too much or too little of any one thing at one time can be detrimental.”

Cott is crossing fingers for regular rains this summer.

“Farming is just a gamble,” the agronomy extension specialist said. “It’s just hoping for the best scenario all the time.”

Environment Canada forecast rain Friday through Sunday as of Tuesday afternoon.



Recommend this post and follow
The Life of Earth

Thursday, 28 April 2022

Water wash cleanses barns between broiler chicken flocks, without need for disinfection

APRIL 27, 2022, by American Society for Microbiology

Credit: CC0 Public Domain

In Canadian broiler chicken production, removal of litter, washing, and disinfection have typically taken place to prepare barns for new flocks. More recently, new regulations have allowed for water washing between flocks, without disinfection. University of Alberta researchers have found that water wash by itself reduced the numbers of the pathogen, Campylobacter jejuni, in birds and in the barn environment, with no negative effect on birds' growth and health, as compared to those grown in barns that had been fully disinfected. The research is published in Applied and Environmental Microbiology.

The findings are "immediately applicable to the poultry industry," said Doug Korver, Ph.D., professor of Poultry Nutrition, University of Alberta, Edmonton, Canada.

"Broiler chicken producers had been looking for ways to reduce costs while maintaining or increasing food safety and bird growth," said Korver. The complete removal of litter, followed by disinfection "had been intended to remove environmental microbial pathogens, but an unintended consequence is that potentially beneficial bacteria are also removed." That, he said, may have reduced the rate at which a normal, stable, healthy gut microflora is achieved in the subsequent flock, possibly slowing the birds' growth and/or reducing their health.

In the study, the investigators worked with a commercial broiler producer that had seven broiler barns, each housing approximately 28,000 broiler chickens. During 4 production cycles, the barns were either water washed, or fully disinfected. When the chickens reached 30 days old, the investigators sampled the ceca (the first section of the large intestine) to assess the presence and abundance of specific pathogens, notably Salmonella and C. jejuni.

"Cecal concentrations of short-chain fatty acids were increased in the water wash group," said coauthor Ben Willing, Ph.D., associate professor and Canada Research Chair in the Microbiology of Nutrigenomics, University of Alberta..

"An increase in short-chain fatty acids was associated with a decrease in campylobacter in our study," said Willing. "In general, microbially produced short chain fatty acids in the gut increase acidity, creating an inhospitable environment for many pathogens, and also serving as fuel for intestinal cells. The short chain fatty acids also modulate immune responses."

Overall, by itself, water washing between flocks reduced the presence of C. jejuni, with no deficits in growth and microbiome health. That, in addition to reduced disinfectant and labor costs, make water washing between flocks an attractive option for broiler chicken producers.


Recommend this post and follow
The Life of Earth

Mental health of college students is getting worse, according to new study

APRIL 27, 2022, by Jessica Colarossi, Boston University


Credit: Unsplash/CC0 Public Domain



To say that college years are a time of great change is an understatement; whether you stay at or close to home, or move away to a four-year university, the post-high school years are often a time of new experiences, unfamiliar responsibilities, growing pains, and learning curves. They can also be a time when some students have to navigate their own physical and mental health for the first time without parental support.

"College is a key developmental time; the age of onset for lifetime mental health problems also directly coincides with traditional college years—75 percent of lifetime mental health problems will onset by age 24," says Sarah K. Lipson, a Boston University School of Public Health assistant professor of health law, policy, and management. For more than 10 years, she's studied college student mental health with the Healthy Minds Network, a national project she co-leads with researchers at the University of California, Los Angeles, the University of Michigan, and Wayne State University.

In a new study published in the Journal of Affective Disorders, Lipson and her colleagues reveal just how common depression, anxiety, and other mental health issues are, and how these issues unequally take a toll on students of color. The paper looks at survey data collected by the Healthy Minds Network between 2013 and 2021 from 350,000 students at over 300 campuses. It's the first long-term, multi-campus study of its kind to parse out differences in treatment and prevalence of mental health issues across race and ethnicity. The study was co-authored by Lipson and other members of the Healthy Minds Network team.

"As a budding clinician of color, I think the tracking of these trends helps support efforts related to stigma reduction and [mental health] education that can be targeted toward certain communities," says Jasmine Morigney, a clinical psychology doctoral student at Eastern Michigan University and a co-author on the study.

The researchers used screening tools to measure mental health symptoms, levels of flourishing, and whether a student received treatment during their time at college; participants self-identified their race and ethnicity.

They found that the mental health of college students across the United States has been on a consistent decline for all eight years of data analyzed, with an overall 135 percent increase in depression and 110 percent increase in anxiety from 2013 to 2021; the number of students who met the criteria for one or more mental health problems in 2021 had doubled from 2013.

Need for mental health support outpacing resources

American Indian/Alaskan Native college students were found to have the largest increases in depression, anxiety, suicidal ideation, and other mental health problems, as well as the largest decreases in flourishing. Back in 2016, about a third of American Indian/Alaskan Native students screened positive for depression, a similar level to other racial and ethnic groups in the study. But by the 2019 and 2020 semesters, half of those respondents were screening positive for depression.

"There has not been nearly enough research on this population," Lipson says. "My hope is that these data document the urgency around understanding some of the unique factors shaping these students' mental health. American Indian/Alaskan Native students need to be brought into the conversation for universities to invest in resources that align with their preferences."

For white students, the prevalence of non-suicidal self-injury and symptoms of eating disorders increased most significantly compared to other groups. In all other categories—depression, anxiety, suicidal ideation, and one or more mental health problems—increases were seen the most among non-white students. During the semesters of the COVID-19 pandemic, American Indian/Alaskan Native students and Asian/Pacific Islander/Desi American (APIDA) students reported the most significant increases in mental health concerns, according to the data.

Although more students overall are seeking help and access to mental health services on college campuses than they were in 2013—which is good news, says Lipson—the prevalence of mental health issues seems to be outpacing the number of students finding and receiving support. And some groups of students are actually less likely to get help than a decade ago. For example, Arab American students experienced a 22 percent jump in mental health issues, but had an 18 percent decrease in treatment over the eight years of the study, highlighting a critical gap between onset of symptoms and accessing help. During the semesters of the pandemic—when many schools went remote—fewer students of color were accessing necessary services.

"I find the change in treatment rates among students of color in the context of the COVID-19 pandemic to be quite surprising," Morigney says. Treatment declined the most in 2020 among APIDA and Black students. "Given the impact of the pandemic on this community and concentrated traumatic racism, it makes this finding quite alarming," she says.

Not just a pandemic problem

Though researchers tracked significant increases in anxiety and depression during the height of the COVID-19 pandemic, Lipson says the numbers show a continuation of a troubling trend rather than a singular spike.

"The crisis related to mental health exists beyond the college and university setting," Lipson says. But the potential to intervene and reach students at a uniquely important time of life is huge. "It might not be perfect, but many four-year colleges offer some of the best resources people will ever have," Lipson says, since these institutions can use their resources to remove many barriers to care, such as a lack of available providers, long wait times, and financial restraints.

University policies to address and eliminate racial discrimination on campus and in healthcare settings can also reduce the mental health risk factors that many students of color experience.

"I would love to see universities work to enhance and promote diversity in their behavioral health staff," says Morigney. Students of color may not know if their campus counseling centers have staff with similar cultural backgrounds and could be reluctant to seek out services, she says. "The majority of mental health professionals are white, and universities are critical for not only providing students with culturally and ethnically diverse care, but also providing opportunities for clinicians of color to serve these student bodies." Providing training opportunities to encourage students of color to enter the field of mental health is also a huge opportunity.

"One of the most important aspects of this study is documenting these inequalities and communicating them to folks who can use this information to enact change," Lipson says. For colleges across the country worried about retention rates—many colleges are seeing more students quit before completing their studies—she says the conversations about retaining students and mental health need to be brought together. It's often the "same students who have the lowest rate of retention in higher education [who] are the same students who are least likely to access mental health services when they are struggling, and mental health is a predictor of retention," she says.

"In the big picture, we need to bring mental health into the classroom so that it doesn't require a student needing to make time or getting motivated to seek help," Lipson says. "There is a lot we can do to bring mental health into the default of students' lives."


Recommend this post and follow
The birth of modern Man

Medical Research News: Pain may be experienced in brainstem, not cerebral cortex, study shows

 

Pain may be experienced in brainstem, not cerebral cortex, study shows


A new study shows that feeling pain is unlike the other senses and may not actually be in the cerebral cortex.