(University of Colorado at Boulder) What can researchers do when their mathematical models of the spread of infectious diseases don't match real-world data? One research team is working on a solution.

(Rutgers University) Rutgers Professor Gregory W. Moore, a renowned physicist who seeks a unified understanding of the basic forces and fundamental particles in the universe, has been elected to the prestigious National Academy of Sciences.

(University of Sydney) In a study published today in Current Biology, researchers from University of Sydney have identified the single gene that determines how Cape honey bees reproduce without ever having sex. One gene, GB45239 on chromosome 11, is responsible for virgin births.

(Universitat Autonoma de Barcelona) More than 500 researchers from all around the world will gather virtually tomorrow Wednesday May 6 at the Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB) to discuss and propose how society should adopt more sustainable and low-carbon forms of lifestyle that contribute to mitigating climate change.

(Arizona State University) Hydrogen is an essential commodity with over 60 million tons produced globally every year. However over 95 percent of it is made by steam reformation of fossil fuels, a process that is energy intensive and produces carbon dioxide. If we could replace even a part of that with algal biohydrogen that is made via light and water, it would have a substantial impact.

(University of Manchester) An international research project has revealed the highest levels of microplastic ever recorded on the seafloor, with up to 1.9 million pieces in a thin layer covering just 1 square meter.

(European Geosciences Union) A new declaration endorsed by EGU and other international geoscience societies affirms the commitment of the Earth, planetary and space science community to support and promote scientific knowledge and research for the benefit of humanity.

(Oregon State University) The world's oceans play a critical role in climate regulation, mitigation and adaptation and should be integrated into comprehensive 'green new deal' proposals being promoted by elected officials and agency policymakers.

As part of the College's move to remote learning, 143 first-year students are taking a series of virtual field courses to investigate biodiversity.

Alumni inspired by the scientific response to the SARS outbreak are developing a platform to help researchers collaborate on global challenges.

What impact has the lockdown had on our mental health, and what determines how people cope with isolation?

(University of California - Santa Cruz) Restoration ecologist Karen Holl has a simple message for anyone who thinks planting 1 trillion trees will reverse the damage of climate change: 'We can't plant our way out of climate change.'

(Clemson University) While the world admires the beauty and fragrance of flowers, most of us are missing out on the extraordinary processes these seemingly delicate life forms are carrying out every moment of the day. Matthew Koski, an assistant professor at Clemson, is not only paying attention, he is advancing his research with a three-year, $455,000 grant from the NSF for a study of flower adaptations titled 'Modifying the floral microenvironment: elevational divergence in floral thermoregulatory mechanisms.'

Patrick Herr
Apr 1, 2020; 19:608-623
Research

Prediction of post-operative pulmonary function in lung cancer patients before tumor resection is essential for patient selection for surgery and is conventionally done with a non-imaging segment counting method (SC) or a two-dimensional planar lung perfusion scintigraphy (PS). The purpose of this study was to compare quantitative analysis of PS to single photon emission computed tomography/computed tomography (SPECT/CT) and to estimate the accuracy of SC, PS and SPECT/CT in predicting post-operative pulmonary function in patients undergoing lobectomy. Methods: Seventy-five non-small cell lung cancer (NSCLC) patients planned for lobectomy were prospectively enrolled (68% males, average age 68.1±8 years ). All patients completed pre-operative forced expiratory volume capacity (FEV1), diffusing capacity of the lung for carbon monoxide (DLCO), Tc99m-MAA lung perfusion scintigraphy with PS and SPECT/CT quantification. A subgroup of 60 patients underwent video-assisted thoracoscopic (VATS) lobectomy and measurement of post-operative FEV1 and DLCO. Relative uptake of the lung lobes estimated by PS and SPECT/CT were compared. Predicted post-operative FEV1 and DLCO were derived from SC, PS and SPECT/CT. Prediction results were compared between the different methods and the true post-operative measurements in patients who underwent lobectomy. Results: Relative uptake measurements differed significantly between PS and SPECT/CT in right lung lobes, with a mean difference of -8.2±3.8, 18.0±5.0 and -11.5±6.1 for right upper, middle and lower lobes respectively (p<0.001). The differences between the methods in the left lung lobes were minor with a mean difference of -0.4±4.4 (p>0.05) and -2.0±4.0 (p<0.001) for left upper and lower lobes respectively. No significant difference and strong correlation (R=0.6-0.76, p<0.001) were found between predicted post-operative lung function values according to SC, PS, SPECT/CT and the actual post-operative FEV1 and DLCO. Conclusion: Although lobar quantification parameters differed significantly between PS and SPECT/CT, no significant differences were found between the predicted post-operative lung function results derived from these methods and the actual post-operative results. The additional time and effort of SPECT/CT quantification may not have an added value in patient selection for surgery. SPECT/CT may be advantageous in patients planned for right lobectomies but further research is warranted.

The cell cycle is a highly conserved process involving the coordinated separation of a single cell into two daughter cells. To relate transcriptional regulation across the cell cycle with oscillatory changes in protein abundance and activity, we carried out a proteome- and phospho-proteome-wide mass spectrometry profiling. We compared protein dynamics with gene transcription, revealing many transcriptionally regulated G2 mRNAs that only produce a protein shift after mitosis. Integration of CRISPR/Cas9 survivability studies further highlighted proteins essential for cell viability. Analyzing the dynamics of phosphorylation events and protein solubility dynamics over the cell cycle, we characterize predicted phospho-peptide motif distributions and predict cell cycle-dependent translocating proteins, as exemplified by the S-adenosylmethionine synthase MAT2A. Our study implicates this enzyme in translocating to the nucleus after the G1/S-checkpoint, which enables epigenetic histone methylation maintenance during DNA replication. Taken together, this data set provides a unique integrated resource with novel insights on cell cycle dynamics.

7 May 2020 , Volume 96, Number 3

There is a three-minute video about MathSciNet now available online on Vimeo. It is also available as part of a blog post from EBSCO, which mostly discusses Mathematics and Statistics Awareness Month and the really neat book Living Proof: Stories … Continue reading →

This is one of the very most fascinating web sites I have ever before observed. This is quite exciting because of its distinct subject matter as well as remarkable write-ups.

This is one of the very most exciting internet sites I have actually ever observed. It is very exciting considering that of its one-of-a-kind subject matter and also amazing short articles.

KINGSTON COLLEGE (KC) principal Dave Myrie has refuted claims that St Jago High School sprint hurdler Vashaun Vascianna will be joining the school this September. The Gleaner understands that Vascianna, who broke the Class Two boys’ 110m hurdles...

They have a big impact on the diet of American citizens, and those of most Western nations, so why does the expert advice underpinning US government dietary guidelines not take account of all the relevant scientific evidence asks Nina Teicholz. Read the full investigation: http://www.bmj.com/content/351/bmj.h4962

Or, the one where Fiona Moss and Don Berwick tells us what they think quality improvement is. Fiona Moss is dean, Royal Society of Medicine, and Don Berwick is president emeritus and senior fellow, Institute for Healthcare Improvement. Don's talk and the interview with Fiona were both recorded at the International Forum on Quality and Safety in...

Virginia Murray, public health consultant in global disaster risk reduction at Public Health England, was instrumental in putting together the Sendai Framework for Disaster Risk Reduction - an international agreement which aims to move the world from reacting to disasters, to proactively preventing them. In this podcast, she explains what they...

We at The BMJ care about food, and if our listener stats are to be believed, so do you. In this podcast we’re looking at quality as an important driver of a good diet. At our recent food conference - Food For Thought - hosted in Zurich by Swiss Re we brought researchers in many fields of nutritional science together. We asked people with...

Susan Greenhalg is a research professor of chinese society in Harvard’s department of anthropology - not a natural fit for a medical journal you may think, but recently she has been looking at the influence of Coca Cola on obesity policy in China. She has written up her investigation in an article published on bmj.com this week, and joins us in...

Cochrane Austria have been asking the public what they'd like to know about health. Not whether the latest drug is more efficacious, but whether glacier stone power cures hangovers. Gerald Gartlehner, director of the Cochrane Austria Centre joins us to explain what they do, and how their evidence has been received. Read more about the project...

Let us step away from the dreaded ‘C’ word that has engulfed us and focus on how one can focus on one’s well-being and how Mother Nature provides both the means and the solutions to balance one’s life. Both an art and a science, one of mankind’s...

Primary hyperparathyroidism (PHPT) is a common endocrine disorder, definitive treatment usually requiring surgical removal of the offending parathyroid glands. To perform focused surgical approaches, it is necessary to localize all hyperfunctioning glands. The aim of the study was to compare the efficiency of established conventional scintigraphic imaging modalities with emerging ¹⁸F-fluorocholine PET/CT imaging in preoperative localization of hyperfunctioning parathyroid glands in a larger series of PHPT patients. Methods: In total, 103 patients with PHPT were imaged preoperatively with ¹⁸F-fluorocholine PET/CT and conventional scintigraphic imaging methods, consisting of ^99mTc-sestamibi SPECT/CT, ^99mTc-sestamibi/pertechnetate subtraction imaging, and ^99mTc-sestamibi dual-phase imaging. The results of histologic analysis, as well as intact parathyroid hormone and serum calcium values obtained 1 d after surgery and on follow-up, served as the standard of truth for evaluation of imaging results. Results: Diagnostic performance of ¹⁸F-fluorocholine PET/CT surpassed conventional scintigraphic methods (separately or combined), with calculated sensitivity of 92% for PET/CT and 39%–56% for conventional imaging (65% for conventional methods combined) in the entire patient group. Subgroup analysis, differentiating single and multiple hyperfunctioning parathyroid glands, showed PET/CT to be most valuable in the group with multiple hyperfunctioning glands, with sensitivity of 88%, whereas conventional imaging was significantly inferior, with sensitivity of 22%–34% (44% combined). Conclusion: ¹⁸F-fluorocholine PET/CT is a diagnostic modality superior to conventional imaging methods in patients with PHPT, allowing for accurate preoperative localization.

The Trump administration’s decision to terminate the Deferred Action for Childhood Arrivals (DACA) deportation-relief program launched in 2012 has sparked new urgency to find a longer-term fix for "DREAMers," the unauthorized immigrants brought to the United States as children. This Policy Beat article examines movement in the courts and in Congress on the DREAM Act and similar proposals, exploring likely paths forward.

Caroline S. Fox
Sep 1, 2015; 38:1777-1803
Scientific Statement

Sarah D. de Ferranti
Oct 1, 2014; 37:2843-2863
Scientific Statement

Richard A. Insel
Oct 1, 2015; 38:1964-1974
Scientific Statement

Sarah D. de Ferranti
Oct 1, 2014; 37:2843-2863
Scientific Statement

Richard A. Insel
Oct 1, 2015; 38:1964-1974
Scientific Statement

While much attention has been given to the move by U.S. Citizenship and Immigration Services to raise its application fees—including an 83 percent hike to apply for U.S. citizenship—the policy changes embedded in the proposed rule have been less scrutinized. The changes, including the elimination of most fee waivers for lower-income applicants, would likely reduce the number and shift the profile of those getting a green card or other immigration status.

In an effort to advance the Association’s diversity and inclusion efforts, the ADA House of Delegates voted at its meeting in September to rescind the policy titled “The Dentist’s Prayer,” used by some state and local dental societies during their meetings, and amend its policy on recognition of religious diversity.

The American Dental Association launched the new ADA Science & Research Institute LLC on Jan. 1, bringing together the Science Institute in Chicago and research group in Gaithersburg, Maryland, that previously reported to the ADA Foundation.

The ADA is urging dentists to be cautious about using novel coronavirus diagnostic tests before they have been properly evaluated and made available for dentists.

Researchers suggest the coldest material in the universe could reveal the presence of dark matter particles.

British scientists said Monday that an amino acid swap can help protect wheat crops from rising heat due to global warming.

Engineers in China have developed a fossil fuel-free jet propulsion prototype design that uses microwave air plasmas.

Melissa Hunfalvay feels Claudio Reyna's pain. Not the pain caused by the sprain in Reyna's knee -- an injury the captain of the defeated U.S. World Cup soccer team sustained last week while conceding a goal in an all-important match against Ghana.

When Warren Buffett announced last week that he will be giving away more than $30 billion to improve health, nutrition and education, people all over America reflected on his remarkable generosity, pondered all the noble things the gift would achieve and asked themselves what they would do if...

Two sociologists and a mathematician recently conducted an experiment that provides an intriguing window into the presidential candidate selection that begins this week. Matthew Salganik, Duncan Watts and Peter Sheridan Dodds had a large group of people rate 48 songs. Based on these ratings, the...

Mitt Romney wants to round up 12 million illegal immigrants and deport them. John Edwards wants to put an end to lobbyists. All the Democratic and Republican presidential candidates rail against the ways of Washington.

On the eve of crucial presidential primaries in Indiana and North Carolina, Sen. Barack Obama (D-Ill.) has found himself dogged by questions about his former pastor, the Rev. Jeremiah A. Wright Jr. As the Democratic front-runner's popularity has suffered after public statements by Wright about ra...