CC360 Pearl: How to Review a Manuscript.
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ABSTRACT:
SUBMITTER: Systrom H
PROVIDER: S-EPMC11331038 | biostudies-literature | 2024 Jul
REPOSITORIES: biostudies-literature
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CC360 Pearl: How to Review a Manuscript.
Systrom Hannah H Malter Lisa L Michel Hilary K HK
Crohn's & colitis 360 20240723 3
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Project description:The C4 grass pearl millet is one of the most drought tolerant cereals and is primarily grown in marginal areas where annual rainfall is low and intermittent. It was domesticated in sub-Saharan Africa, and several studies have found that it uses a combination of morphological and physiological traits to successfully resist drought. This review explores the short term and long-term responses of pearl millet that enables it to either tolerate, avoid, escape, or recover from drought stress. The response to short term drought reveals fine tuning of osmotic adjustment, stomatal conductance, and ROS scavenging ability, along with ABA and ethylene transduction. Equally important are longer term developmental plasticity in tillering, root development, leaf adaptations and flowering time that can both help avoid the worst water stress and recover some of the yield losses via asynchronous tiller production. We examine genes related to drought resistance that were identified through individual transcriptomic studies and through our combined analysis of previous studies. From the combined analysis, we found 94 genes that were differentially expressed in both vegetative and reproductive stages under drought stress. Among them is a tight cluster of genes that are directly related to biotic and abiotic stress, as well as carbon metabolism, and hormonal pathways. We suggest that knowledge of gene expression patterns in tiller buds, inflorescences and rooting tips will be important for understanding the growth responses of pearl millet and the trade-offs at play in the response of this crop to drought. Much remains to be learnt about how pearl millet's unique combination of genetic and physiological mechanisms allow it to achieve such high drought tolerance, and the answers to be found may well be useful for crops other than just pearl millet.
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Project description:E-JOURNAL LINKED ABSTRACT URL http://www.current-oncology.com/index.php/oncology/article/view/840/ Pseudocirrhosis is a rare form of liver disease that causes clinical symptoms and shows radiographic signs of cirrhosis, but that has histologic features suggesting a distinct pathologic process. In the setting of cancer, hepatic metastases and systemic chemotherapy are suspected causes of pseudocirrhosis. We present the case of a 49-year-old woman with medullary thyroid carcinoma metastatic to the liver who developed pseudocirrhosis. The patient was initially enrolled in a phase i clinical trial of 5-fluorouracil, leucovorin, and oxaliplatin (folfox) in combination with sunitinib (NCT00599924). After this patient’s liver metastases regressed measurably, she was switched to sunitinib maintenance. After 4 months of combination therapy with folfox–sunitinib and 15 months of sunitinib maintenance, she developed abdominal bloating, early satiety, and right upper quadrant pain that increased with inspiration. Computed tomography of the abdomen revealed cirrhotic morphology changes in the liver, including the appearance of a nodular surface and capsular retraction. The patient had no risk factors for cirrhosis and laboratory testing for causes of liver disease were normal or negative. Core-needle liver biopsy demonstrated sheets and nests of epithelioid and spindle cells resembling the primary tumor; septal fibrosis and regenerative nodules typical of cirrhosis were not observed. The background hepatic plate architecture was intact. Laboratory studies showed increased aminotransferases, alkaline phosphatase, and international normalized ratio, and decreased albumin. Portal hypertension, esophageal varices, portal hypertensive gastropathy, and hepatic hydrothorax developed as a result of advanced liver disease. Because of disease progression, sunitinib was discontinued, and the patient was managed with sorafenib. Pseudocirrhosis has often been attributed to chemotherapeutic agents, particularly in the context of metastatic breast cancer. The toxicity profiles of folfox and sunitinib include hepatic steatosis and other forms of hepatotoxicity, but cirrhotic-like disease has not been reported. Considering the transformation of discrete hepatic metastases into a diffuse carcinomatous infiltrate and the unrelated toxicities of folfox and sunitinib, we diagnosed this patient with carcinomatous pseudocirrhosis secondary to metastatic medullary thyroid carcinoma. We discuss the diagnosis of pseudocirrhosis in this case and review the literature regarding pseudocirrhosis in cancer.
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Project description:The phenomenon of heterosis has fascinated plant breeders ever since it was first described by Charles Darwin in 1876 in the vegetable kingdom and later elaborated by George H Shull and Edward M East in maize during 1908. Heterosis is the phenotypic and functional superiority manifested in the F1 crosses over the parents. Various classical complementation mechanisms gave way to the study of the underlying potential cellular and molecular mechanisms responsible for heterosis. In cereals, such as maize, heterosis has been exploited very well, with the development of many single-cross hybrids that revolutionized the yield and productivity enhancements. Pearl millet (Pennisetum glaucum (L.) R. Br.) is one of the important cereal crops with nutritious grains and lower water and energy footprints in addition to the capability of growing in some of the harshest and most marginal environments of the world. In this highly cross-pollinating crop, heterosis was exploited by the development of a commercially viable cytoplasmic male-sterility (CMS) system involving a three-lines breeding system (A-, B- and R-lines). The first set of male-sterile lines, i.e., Tift 23A and Tift18A, were developed in the early 1960s in Tifton, Georgia, USA. These provided a breakthrough in the development of hybrids worldwide, e.g., Tift 23A was extensively used by Punjab Agricultural University (PAU), Ludhiana, India, for the development of the first single-cross pearl millet hybrid, named Hybrid Bajra 1 (HB 1), in 1965. Over the past five decades, the pearl millet community has shown tremendous improvement in terms of cytoplasmic and nuclear diversification of the hybrid parental lines, which led to a progressive increase in the yield and adaptability of the hybrids that were developed, resulting in significant genetic gains. Lately, the whole genome sequencing of Tift 23D2B1 and re-sequencing of circa 1000 genomes by a consortium led by the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) has been a significant milestone in the development of cutting-edge genetic and genomic resources in pearl millet. Recently, the application of genomics and molecular technologies has provided better insights into genetic architecture and patterns of heterotic gene pools. Development of whole-genome prediction models incorporating heterotic gene pool models, mapped traits and markers have the potential to take heterosis breeding to a new level in pearl millet. This review discusses advances and prospects in various fronts of heterosis for pearl millet.
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Project description:Manuscript symbols can be stored, recognized and retrieved from an entropic digital memory that is associative and distributed but yet declarative; memory retrieval is a constructive operation, memory cues to objects not contained in the memory are rejected directly without search, and memory operations can be performed through parallel computations. Manuscript symbols, both letters and numerals, are represented in Associative Memory Registers that have an associated entropy. The memory recognition operation obeys an entropy trade-off between precision and recall, and the entropy level impacts on the quality of the objects recovered through the memory retrieval operation. The present proposal is contrasted in several dimensions with neural networks models of associative memory. We discuss the operational characteristics of the entropic associative memory for retrieving objects with both complete and incomplete information, such as severe occlusions. The experiments reported in this paper add evidence on the potential of this framework for developing practical applications and computational models of natural memory.
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Project description:In this article, we employ simple descriptive methods in order to explore the peculiar behavior of the symbols in the Voynich Manuscript. Such an analysis reveals a group of symbols which are further analyzed for the possibility of being compounds (or ligatures), using a specifically developed method. The results suggest the possibility that the alphabet of the manuscript is a lot smaller, and steganographic type of encoding is proposed to explain the newly revealed properties.
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Project description:BACKGROUND:Although peer reviewers play a key role in the manuscript review process, their roles and tasks are poorly defined. Clarity around this issue is important as it may influence the quality of peer reviewer reports. This scoping review explored the roles and tasks of peer reviewers of biomedical journals. METHODS:Comprehensive literature searches were conducted in Cochrane Library, Cumulative Index to Nursing and Allied Health Literature, Educational Resources Information Center, EMBASE, MEDLINE, PsycINFO, Scopus and Web of Science from inception up to May 2017. There were no date and language restrictions. We also searched for grey literature. Studies with statements mentioning roles, tasks and competencies pertaining to the role of peer reviewers in biomedical journals were eligible for inclusion. Two reviewers independently performed study screening and selection. Relevant statements were extracted, collated and classified into themes. RESULTS:After screening 2763 citations and 600 full-text papers, 209 articles and 13 grey literature sources were included. A total of 1426 statements related to roles were extracted, resulting in 76 unique statements. These were grouped into 13 emergent themes: proficient experts in their field (3 items), dutiful/altruistic towards scientific community (7 items), familiar with journal (2 items), unbiased and ethical professionals (18 items), self-critical professionals (4 items), reliable professionals (7 items), skilled critics (15 items), respectful communicators (6 items), gatekeepers (2 items), educators (2 items), advocates for author/editor/reader (3 items) and advisors to editors (2 items). Roles that do not fall within the remit of peer reviewers were also identified (5 items). We also extracted 2026 statements related to peer reviewers' tasks, resulting in 73 unique statements. These were grouped under six themes: organisation and approach to reviewing (10 items), make general comments (10 items), assess and address content for each section of the manuscript (36 items), address ethical aspects (5 items), assess manuscript presentation (8 items) and provide recommendations (4 items). CONCLUSIONS:Peer reviewers are expected to perform a large number of roles and tasks for biomedical journals. These warrant further discussion and clarification in order not to overburden these key actors.
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Project description:Abstract The global Covid-19 pandemic has had a considerable impact on the scientific enterprise, including scholarly publication and peer-review practices. Several studies have assessed these impacts, showing among others that medical journals have strongly accelerated their review processes for Covid-19-related content. This has raised questions and concerns regarding the quality of the review process and the standards to which manuscripts are held for publication. To address these questions, this study sets out to assess qualitative differences in review reports and editorial decision letters for Covid-19 related, articles not related to Covid-19 published during the 2020 pandemic, and articles published before the pandemic. It employs the open peer-review model at the British Medical Journal and eLife to study the content of review reports, editorial decisions, author responses, and open reader comments. It finds no clear differences between the review processes of articles not related to Covid-19 published during or before the pandemic. However, it does find notable diversity between Covid-19 and non-Covid-19-related articles, including fewer requests for additional experiments, more cooperative comments, and different suggestions to address too strong claims. In general, the findings suggest that both reviewers and journal editors implicitly and explicitly use different quality criteria to assess Covid-19-related manuscripts, hence transforming science’s main evaluation mechanism for their underlying studies and potentially affecting their public dissemination.
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