Thursday, August 18, 2022

New principles for biological fieldwork will build equity for researchers and local communities

Peer-Reviewed Publication

UNIVERSITY OF KANSAS

Equitable fieldwork 

IMAGE: FIELDWORK IN REMOTE FORESTED SITES IN THE PHILIPPINES USUALLY INVOLVES BACK-COUNTRY CAMPING CONDITIONS, LATE NIGHTS CATCHING ANIMALS AND LONG DAYS WORKING — IN DIVERSE GROUPS OF COLLABORATING FACULTY, STUDENTS AND REPRESENTATIVES OF INDIGENOUS PEOPLES’ GROUPS — TO CAPTURE DATA AND PROPERLY PRESERVE SPECIMENS. HERE RAFE BROWN, FACULTY MEMBERS AND STUDENTS FROM ATENEO DE NAGA UNIVERSITY DISCUSS TECHNIQUES FOR RECORDING DATA FROM SPECIMENS BOUND FOR KU. view more 

CREDIT: MICHAEL CUESTA

LAWRENCE — For hundreds of years, teams of biologists have carried out fieldwork around the globe, often trekking to remote places to collect specimens and data about our natural world. Today, such work can demand collaboration between large international teams of biologists, extensive permitting with authorities, interaction with local communities and research plans often led by one or two senior investigators.

Too often, these factors can result in power imbalances between researchers and local communities where fieldwork takes place. Moreover, inequities based on race, gender, sexual orientation and seniority can develop within the teams of researchers themselves.

Now, a new paper appearing in the Proceedings of the National Academy of Sciences lays out a set of principles for biological fieldwork designed to lessen inequities between researchers and local populations, as well as internally among research teams themselves. Many “best practices” in the paper are adapted from procedures for permitting and licensing developed over years at the University of Kansas Biodiversity Institute and Natural History Museum.

“When I was invited by colleagues at Berkeley to be part of this conversation, I was really happy to contribute,” said co-author Rafe Brown, curator-in-charge of the Herpetology Division at KU’s Biodiversity Institute. “After more than 30 years of working in the Philippines, I had lots of experience in managing groups of people working together in the field. I'd seen a lot of things work out well, and a lot of things work out so-so, where we needed some improvement in the way we interact, as groups of people, working often in remote and stressful field conditions. I’ve seen some real trainwrecks of group psychology during fieldwork — and things that just struck me as potentially dangerous. I never had any real disasters myself, but I saw some risky and even scary behavior, and heard a lot of stories over the years, in my early career, and in grad school.”

KU’s Biodiversity Institute is seen as a leader in collaborating with local authorities and populations to make sure biological fieldwork is ethical, legal and safe — in part because of its extensive checklists and procedures for permitting and licensing. Supplemental documents to the PNAS paper — a Field Safety Plan Template and a Scientific Permit Checklist – are adapted in part from KU’s procedures.

“I’d like to see these shared widely and adopted by institutions around the world as a foundation for fieldwork planning,” said Lori Schlenker, assistant director of collections and facilities at the Biodiversity Institute. “We’re committed to participating in safe and legal fieldwork and training the next generation of students to be able to lead their own programs and mentor their own students in these practices when they graduate from KU. We’ve been building on our experiences — good and bad — and have developed procedures so that prior to departure, permits are in place and researchers have considered how they will collect, export and import research specimens safely, legally and ethically. This ensures that resources are not expended on specimens that we cannot legally accession into our collections. Most importantly, the safety of all field team members is critical. Applying the experience of our BI researchers, and with guidance from KU, emphasis is placed on communication and transparency as part of the fieldwork planning process.”

Much of this to hone the way KU biologists tackle permitting and interacting with local authorities and communities has taken place in the Philippines, where Biodiversity Institute personnel strive for locally inclusive fieldwork.

"Our 15-year, multi-institutional collaboration with KU has resulted the traditional products and outputs — like students trained, papers published, grants obtained — but it has also profited from many deep discussions and steps taken, to correct the past landscape of exclusively foreigner-led, expeditionary fieldwork,” said co-author Tess Sanguila of Father Saturnino Urios University in the Philippines. “Additionally, here within the country, our own scientific community often only considers and prioritizes the contributions and inputs from the so-called experts in the capital city over those of the researchers from the provinces in the southern Philippines, who are stereotyped as being of inferior expertise. This paper provides a simplified and practical starting point, from which we hope to establish a solution to this whole imbalanced culture, and from which we fundamentally advocate to ‘support local’ for more inclusive and invigorated long-term collaborations of the future." 

The PNAS paper advocates four main principles for fieldwork to promote “equity, reciprocity, access, benefit-sharing and safety”:

  • Be collaborative: We embrace collaborative science and fieldwork practices with our partners, field teams and the communities with whom we work.
  • Be respectful: We prioritize local sovereignty and long-term benefits for the community, and we invest time and effort in learning about and respecting local history and cultures.
  • Be legal: We commit to obtaining all necessary permits, authorizations, and land permissions, and to following all legal guidelines and requirements.
  • Be safe: We work proactively to promote a safe physical and emotional environment for all members of research teams and local communities with clear guidance and communications.

Lead author Valeria Ramírez Castañeda, doctoral student in integrative biology at the University of California, Berkeley, said her own time conducting biological fieldwork in the Amazon inspired her work on the paper.

“My own personal experience comes from the Global South,” Castañeda said. “I’m Colombian, and my focus was in particular on how we interact with local communities when conducting fieldwork. My research in biology takes place in the Colombian Amazon, where I work with predator-prey interactions between snakes and frogs. The local community — biologists, drivers, field assistants, among others — sustain and inform my work there. However, are we scientists reciprocal when it comes to thinking about benefits and acknowledgments for the community? I’ve been trying to change or at least acknowledge practices that exclude the local communities from research. I was born in the biggest city in Colombia — Bogotá — so I was an uninvited guest in the Amazon territory. I’ve been trying to get to know the community where I work, ask for consent for every procedure, explain my research, collaborate with biologists and field assistants from indigenous and local communities, and participate in community-science projects.”

In addition to working with local populations and authorities, the new paper offers recommendations to alleviate power asymmetries that can plague fieldwork teams internally.

“With all the recent civil unrest in the U.S. and the existing inequities that have been exacerbated by the pandemic, it’s a good time to reevaluate how we do things in our profession because people are listening and reflecting,” said Rebecca Tarvin, assistant professor of integrative biology at the University of California, Berkeley. “Personally, I’ve wanted to think more deeply about field biology for some time. I didn’t receive any formal training on how to do collaborative science involving fieldwork and I think this is largely true for others in field biology. The way people conduct fieldwork thus often depends on the norms and culture of their lab and on the default approaches to doing science. However, doing equitable science takes intentional planning, and many default approaches are not equitable. That’s why we wanted to provide some general guidelines that can help anyone proactively plan more equitable research programs.”

Tarvin added that data show diverse teams can produce more innovative and robust research.

“Having diverse groups doing fieldwork in a way that is fair, open and collaborative with the people living where we work has the further benefit of including everyone in conducting, communicating and benefiting from science,” she said.

CAPTION

The authors advocate four main principles for fieldwork to promote “equity, reciprocity, access, benefit-sharing and safety."

CREDIT

Ramírez-Castañeda, et al.


Assessing the effect of hydraulic fracturing on microearthquakes

New research examines mining sites with hydraulic fracturing comparing it to those without to determine the practice’s effect on seismic hazards

Peer-Reviewed Publication

SPRINGER

The analysis of low-intensity human-caused microearthquakes, including their magnitude and frequency, has become an important factor in mining. This is a consideration not only for the safety of mining staff, but also for extraction rates and mine stability that can have major impacts on business performance.

Increasingly, the practice of hydraulic fracturing is used to precondition mines and diminish the magnitude of induced tremors as well as reduce the number of rock fragments extracted.

A new paper published in EPJ B assesses the impact of hydraulic fracturing on seismic hazards like microearthquakes, an important issue for the safety of workers and the continuation of mining operations. The paper is authored by Erick de la Barra, Pedro Vega-Jorquera and Héctor Torres from the University of La Serena, Chile, alongside Sérgio Luiz E. F. da Silva from Politecnico di Torino, Department of Applied Science and Technology, Turin, Italy.

Hydraulic fracturing involves pumping large quantities of fluids into a wellbore at high pressures. This has the effect of enlarging fractures in the target rock formation. This results in an increase in the yield of oil or gas from rocks — especially from low-permeability rocks like tight sandstone, shale and occasionally coal beds.

The authors attempt to quantify the benefits of preconditioning with hydraulic fracturing by integrating previous investigative models to create a more realistic approximation of the seismic ruptures.

This model was applied to a mine in the O’Higgins Region of Chile to assess induced seismic activity due to the effect of hydraulic fracturing. The team also considered both the magnitude of microearthquakes and the intervening time between events.

This was done by considering 15,436 microearthquakes recorded between 2003 and 2008 in three sections of the mine. These were then compared on the basis of whether the section had been preconditioned with hydraulic fracturing or not.

The results seemed to imply that hydraulic fracturing decreases the magnitude and the microearthquakes.

The model worked on by the team could also be utilised to predict seismic activity, and to understand so-called marsquakes occurring on the Red Planet. 

“In reference to the next step in this investigation, our interest is to work with the problem when self-similarity is broken,” Vega-Jorquera says. “Thus, considering the problem of multisources and relating them to multimodal distributions, this would imply evaluating possible modifications of the seismic hazard via hydraulic fracturing.”

###

References

de la Barra, E., Vega-Jorquera, P., da Silva, S.L.E.F. et al. Hydraulic fracturing assessment on seismic hazard by Tsallis statistics. Eur. Phys. J. B 95:92 (2022). https://doi.org/10.1140/epjb/s10051-022-00361-6

FOR PROFIT HEALTHCARE U$A

Men in same-sex couples suffer earnings decline when preventative HIV-medicine is available

Research on employer-sponsored health insurance bears implications across the labor market

Peer-Reviewed Publication

RENSSELAER POLYTECHNIC INSTITUTE

TROY, N.Y. — When expensive medicines that are proven to prevent HIV acquisition are available through employer-sponsored health insurance (ESI), annual earnings for men in same-sex couples decline and part-time employment increases. The labor market effects are largest for young white men, who are among those most likely to be taking HIV prevention drugs.

These are among the findings in a study published recently in Economics and Human Biology by Dr. Conor Lennon, an associate professor of economics at Rensselaer Polytechnic Institute.

“Health insurance offered by employers is the most common source of coverage among working-age adults,” Dr. Lennon said. “However, it is a benefit that carries unexpected and far-reaching impacts.”

This is because the cost for employers in the United States to provide health insurance is determined by the medical expenditures of their employees, a practice known as experience rating. Employees who use more expensive providers, procedures, and prescriptions make it more expensive for their company to offer a health insurance benefit, either via changes in premiums or via the direct costs of self-insurance, creating an incentive to hire only the healthiest workers, all else equal.

Lennon’s research examines the impact of Truvada, a Pre-Exposure Prophylaxis (PrEP) drug that effectively prevents HIV acquisition. With an average cost of over $20,000 per year, the advent of Truvada in 2012 significantly increased the expected cost of employing men who have sex with men.

Dr. Lennon used a ten-year span of data from the American Community Survey of the United States Census Bureau and a difference-in-difference empirical approach to explore the possible impact of ESI on labor market outcomes for men in same-sex couples.

He found that when PrEP drugs became available, annual earnings for men in same-sex couples who have ESI declined by $2,650 (approximately 3.9%) relative to comparable men in different-sex couples.

When focusing on those working full-time, Dr. Lennon found a larger $3,013 relative decline in earnings.

Dr. Lennon also found a 0.8 percentage point (10.7%) increase in the proportion of men in same-sex couples working part-time, defined as fewer than 30 hours per week.

There were no comparable effects for women in same-sex couples.

“ESI clearly affects workers by sexual orientation which could also help to explain some of the historical wage penalty for gay and bisexual men,” Lennon said. “Moreover, given recent Federal Drug Administration approvals of increasingly expensive pharmaceuticals – such as Aduhelm for Alzheimer’s – future work should try to estimate how the costs of new medications impact the earnings and employment of those workers likely to need access to such expensive drugs.”

About Rensselaer Polytechnic Institute

Founded in 1824, Rensselaer Polytechnic Institute is America’s first technological research university. Rensselaer encompasses five schools, over 30 research centers, more than 140 academic programs including 25 new programs, and a dynamic community made up of over 6,800 students and 104,000 living alumni. Rensselaer faculty and alumni include upwards of 155 National Academy members, six members of the National Inventors Hall of Fame, six National Medal of Technology winners, five National Medal of Science winners, and a Nobel Prize winner in Physics. With nearly 200 years of experience advancing scientific and technological knowledge, Rensselaer remains focused on addressing global challenges with a spirit of ingenuity and collaboration. To learn more, please visit www.rpi.edu.

Contact: 

Christian TeBordo

Sr. Communications Specialist

tebordc@rpi.edu

 

Tracey Leibach

Director, Periodicals

leibat@rpi.edu

For general inquiries: newsmedia@rpi.edu

Visit the Rensselaer research and discovery blog: https://everydaymatters.rpi.edu/

Follow us on Twitter: @RPINews

Men in same-sex couples suffer earnings decline when preventative HIV-medicine is available

Research on employer-sponsored health insurance bears implications across the labor market

Peer-Reviewed Publication

RENSSELAER POLYTECHNIC INSTITUTE

TROY, N.Y. — When expensive medicines that are proven to prevent HIV acquisition are available through employer-sponsored health insurance (ESI), annual earnings for men in same-sex couples decline and part-time employment increases. The labor market effects are largest for young white men, who are among those most likely to be taking HIV prevention drugs.

These are among the findings in a study published recently in Economics and Human Biology by Dr. Conor Lennon, an associate professor of economics at Rensselaer Polytechnic Institute.

“Health insurance offered by employers is the most common source of coverage among working-age adults,” Dr. Lennon said. “However, it is a benefit that carries unexpected and far-reaching impacts.”

This is because the cost for employers in the United States to provide health insurance is determined by the medical expenditures of their employees, a practice known as experience rating. Employees who use more expensive providers, procedures, and prescriptions make it more expensive for their company to offer a health insurance benefit, either via changes in premiums or via the direct costs of self-insurance, creating an incentive to hire only the healthiest workers, all else equal.

Lennon’s research examines the impact of Truvada, a Pre-Exposure Prophylaxis (PrEP) drug that effectively prevents HIV acquisition. With an average cost of over $20,000 per year, the advent of Truvada in 2012 significantly increased the expected cost of employing men who have sex with men.

Dr. Lennon used a ten-year span of data from the American Community Survey of the United States Census Bureau and a difference-in-difference empirical approach to explore the possible impact of ESI on labor market outcomes for men in same-sex couples.

He found that when PrEP drugs became available, annual earnings for men in same-sex couples who have ESI declined by $2,650 (approximately 3.9%) relative to comparable men in different-sex couples.

When focusing on those working full-time, Dr. Lennon found a larger $3,013 relative decline in earnings.

Dr. Lennon also found a 0.8 percentage point (10.7%) increase in the proportion of men in same-sex couples working part-time, defined as fewer than 30 hours per week.

There were no comparable effects for women in same-sex couples.

“ESI clearly affects workers by sexual orientation which could also help to explain some of the historical wage penalty for gay and bisexual men,” Lennon said. “Moreover, given recent Federal Drug Administration approvals of increasingly expensive pharmaceuticals – such as Aduhelm for Alzheimer’s – future work should try to estimate how the costs of new medications impact the earnings and employment of those workers likely to need access to such expensive drugs.”

About Rensselaer Polytechnic Institute

Founded in 1824, Rensselaer Polytechnic Institute is America’s first technological research university. Rensselaer encompasses five schools, over 30 research centers, more than 140 academic programs including 25 new programs, and a dynamic community made up of over 6,800 students and 104,000 living alumni. Rensselaer faculty and alumni include upwards of 155 National Academy members, six members of the National Inventors Hall of Fame, six National Medal of Technology winners, five National Medal of Science winners, and a Nobel Prize winner in Physics. With nearly 200 years of experience advancing scientific and technological knowledge, Rensselaer remains focused on addressing global challenges with a spirit of ingenuity and collaboration. To learn more, please visit www.rpi.edu.

Contact: 

Christian TeBordo

Sr. Communications Specialist

tebordc@rpi.edu

 

Tracey Leibach

Director, Periodicals

leibat@rpi.edu

For general inquiries: newsmedia@rpi.edu

Visit the Rensselaer research and discovery blog: https://everydaymatters.rpi.edu/

Follow us on Twitter: @RPINews

Awareness of SARS-CoV-2 omicron variant infection among adults

JAMA Network Open

Peer-Reviewed Publication

JAMA NETWORK

About The Study: The results of this study in Los Angeles County of 210 adults with recent Omicron variant infection suggest that more than half were unaware of their infectious status and that awareness was higher among health care employees than nonemployees, yet it was still low overall. Unawareness may be a key contributor to rapid transmission of the virus within communities.

Authors: Susan Cheng, M.D., M.P.H., of Cedars-Sinai Medical Center in Los Angeles, is the corresponding author.

To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/ 

(doi:10.1001/jamanetworkopen.2022.27241)

Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.

#  #  #

Embed this link to provide your readers free access to the full-text article This link will be live at the embargo time http://jamanetwork.com/journals/jamanetworkopen/fullarticle/10.1001/jamanetworkopen.2022.27241?utm_source=For_The_Media&utm_medium=referral&utm_campaign=ftm_links&utm_term=081722

About JAMA Network Open: JAMA Network Open is the new online-only open access general medical journal from the JAMA Network. On weekdays, the journal publishes peer-reviewed clinical research and commentary in more than 40 medical and health subject areas. Every article is free online from the day of publication.

GOOD NEWS

Scientists relieved to discover ‘curious’ creature with no anus is not earliest human ancestor

Peer-Reviewed Publication

UNIVERSITY OF BRISTOL

Image 1 

IMAGE: SACCORHYTUS view more 

CREDIT: PHILIP DONOGHUE ET AL

An international team of researchers have discovered that a mysterious microscopic creature from which humans were thought to descend is part of a different family tree.

Resembling an angry Minion, the Saccorhytus  is a spikey, wrinkly sack, with a large mouth surrounded by spines and holes that were interpreted as pores for gills – a primitive feature of the deuterostome group, from which our own deep ancestors emerged.

However, extensive analysis of 500 million year old fossils from China has shown that the holes around the mouth are bases of spines that broke away during the preservation of the fossils, finally revealing the evolutionary affinity of the microfossil Saccorhytus.

“Some of the fossils are so perfectly preserved that they look almost alive,” says Yunhuan Liu, professor in Palaeobiology at Chang’an University, Xi’an, China. “Saccorhytus was a curious beast, with a mouth but no anus, and rings of complex spines around its mouth.”

The findings, published today in Nature, make important amendments to the early phylogenetic tree and the understanding of how life developed.

The true story of Saccorhytus’ ancestry lies in the microscopic internal and external features of this tiny fossil. By taking hundreds of X-ray images at slightly different angles, with the help of powerful computers, a detailed 3D digital model of the fossil could be reconstructed. Researcher Emily Carlisle from the University of Bristol’s School of Earth Sciences explained: “Fossils can be quite difficult to interpret and Saccorhytus is no exception. We had to use a synchrotron, a type of particle accelerator, as the basis for our analysis of the fossils. The synchrotron provides very intense X-Rays that can be used to take detailed images of the fossils. We took hundreds of X-Ray images at slightly different angles and used a supercomputer to create a 3D digital model of the fossils, which reveals the tiny features of its internal and external structures.”

The digital models showed that pores around the mouth were closed by another body layer extending through, creating spines around the mouth. “We believe these would have helped Saccorhytus capture and process its prey,” suggests Huaqiao Zhang from the Nanjing Institute of Geology and Palaeontology.

The researchers believe that Saccorhytus is in fact an ecdysoszoan: a group that contains arthropods and nematodes. “We considered lots of alternative groups that Saccorhytus might be related to, including the corals, anemones and jellyfish which also have a mouth but no anus,” said Prof Philip Donoghue of University of Bristol’s School of Earth Sciences, who co-led the study. “To resolve the problem our computational analysis compared the anatomy of Saccorhytus with all other living groups of animals, concluding a relationship with the arthropods and their kin, the group to which insects, crabs and roundworms belong.”

Saccorhytus’ lack of anus is an intriguing feature of this microscopic, ancient organism. Although the question that springs to mind is the alternative route of digestive waste (out of the mouth, rather undesirably), this feature is important for a fundamental reason of evolutionary biology. How the anus arose – and sometimes subsequently disappeared – contributes to the understanding of how animal bodyplans evolved. Moving Saccorhytus from deuterosome to ecdysozoan means striking a disappearing anus off the deuterosome case history, and adding it to the ecdysozoan one.

“This is a really unexpected result because the arthropod group have a through-gut, extending from mouth to anus. Saccorhytus’s membership of the group indicates that it has regressed in evolutionary terms, dispensing with the anus its ancestors would have inherited,” says Shuhai Xiao from Virgina Tech, USA, who co-led the study. “We still don’t know the precise position of Saccorhytus within the tree of life but it may reflect the ancestral condition from which all members of this diverse group evolved.”

The international team included researchers from the University of Bristol, Chang’an University (Xi’an, China), Nanjing Institute of Geology and Palaeontology (China), Chinese Academy of Sciences (Nanjing, China), Chinese Academy of Geological Sciences (Beijing, China), Shandong University (Qingdao, China), Swiss Light Source, Virginia Tech (USA) and First Institute of Oceanography, Ministry of Natural Resource (Qingdao, China).

Paper:

‘Saccorhytus is an early ecdysozoan and not the earliest deuterostome’ by Philip Donoghue et al in Nature.

CAPTION

Saccorhytus side-on

CREDIT

Philip Donoghue et al


Fast-growing poplars can release land for food production

Peer-Reviewed Publication

STOCKHOLM UNIVERSITY

IMAGE: HARVESTING MATURE POPLAR 26 YEARS AFTER PLANTING IN SOUTHERN SWEDEN NEAR LAKE VOMBSJÖN. PHOTO: ALMIR KARACIC view more


CREDIT: PHOTO: ALMIR KARACIC

Researchers at Stockholm University and the Swedish University of Agricultural Sciences have developed a novel value chain for production of textile and bio-fuel from fast-growing poplars. By applying sustainable catalysis on these poplars grown on marginal land in Nordic climates, the demand for cotton can be reduced. Consequently, considerable areas of productive agricultural land can be converted from cotton to food production.

Even though cotton is a biomaterial, the cultivation of cotton is not sustainable. The Aral Sea that disappeared within a few decades is a tragic yet illustrative case of the immense water demand for cultivating cotton. In contrast, in rain fed Nordic landscapes textile fibre is produced without irrigation.

Novel poplar trees

SLU, the Swedish University of Agricultural Sciences, developed novel poplar clones that have superior growth on marginal land on northern latitudes. These poplars reach full growth within 20 years, as compared to 50-100 years for current forestry trees.

Anneli Adler, researcher at SLU and the first author of an article published in the scientific journal Joule says:
“I named these clones SnowTiger as they grow fast in short rotations in northern climates. They are ´The Nordic Eucalypts´.”

Joseph Samec, Professor of Organic Chemistry at Stockholm University and the main corresponding author of the article says:

“The whole tree is converted to high value products where the cellulose becomes textile fibre while the hemicellulose and lignin are transformed to an advanced biofuel. This is noteworthy as less than 50 percent of wood is refined to textile fibre with current pulping technologies, while the rest is burnt to a low value.”

And he continues:

“This is a highly interdisciplinary study involving several institutes that demonstrate the Nordic region’s ability to contribute to global food security and irrigation challenges.”

The article “Lignin-first biorefining of Nordic poplar to produce cellulose fibers could displace cotton production on agricultural lands” is published in the journal Joule 17 August 2022.


Fast-growing poplars in a 19-year-old poplar plantation outside Uppsala. 
Photo: Almir Karacic

JOURNAL

Joule

DOI

10.1016/j.joule.2022.06.021

ARTICLE TITLE

“Lignin-first biorefining of Nordic poplar to produce cellulose fibers could displace cotton production on agricultural lands”

ARTICLE PUBLICATION DATE

17-Aug-2022