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https://www.readbyqxmd.com/read/28212419/evaluating-the-lexico-grammatical-differences-in-the-writing-of-native-and-non-native-speakers-of-english-in-peer-reviewed-medical-journals-in-the-field-of-pediatric-oncology-creation-of-the-genuine-index-scoring-system
#1
Alberto Alexander Gayle, Motomu Shimaoka
INTRODUCTION: The predominance of English in scientific research has created hurdles for "non-native speakers" of English. Here we present a novel application of native language identification (NLI) for the assessment of medical-scientific writing. For this purpose, we created a novel classification system whereby scoring would be based solely on text features found to be distinctive among native English speakers (NS) within a given context. We dubbed this the "Genuine Index" (GI). METHODOLOGY: This methodology was validated using a small set of journals in the field of pediatric oncology...
2017: PloS One
https://www.readbyqxmd.com/read/28207384/supervised-learning-of-semantics-preserving-hash-via-deep-convolutional-neural-networks
#2
Huei-Fang Yang, Kevin Lin, Chu-Song Chen
This paper presents a simple yet effective supervised deep hash approach that constructs binary hash codes from labeled data for large-scale image search. We assume that the semantic labels are governed by several latent attributes with each attribute on or off, and classification relies on these attributes. Based on this assumption, our approach, dubbed supervised semantics-preserving deep hashing (SSDH), constructs hash functions as a latent layer in a deep network and the binary codes are learned by minimizing an objective function defined over classification error and other desirable hash codes properties...
February 9, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28203236/the-deubiquitinating-enzyme-cylindromatosis-dampens-cd8-t-cell-responses-and-is-a-critical-factor-for-experimental-cerebral-malaria-and-blood-brain-barrier-damage
#3
Ursula Schmid, Werner Stenzel, Josephin Koschel, Maria Raptaki, Xu Wang, Michael Naumann, Kai Matuschewski, Dirk Schlüter, Gopala Nishanth
Cerebral malaria is a severe complication of human malaria and may lead to death of Plasmodium falciparum-infected individuals. Cerebral malaria is associated with sequestration of parasitized red blood cells within the cerebral microvasculature resulting in damage of the blood-brain barrier and brain pathology. Although CD8(+) T cells have been implicated in the development of murine experimental cerebral malaria (ECM), several other studies have shown that CD8(+) T cells confer protection against blood-stage infections...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28201928/movie-piracy-networks-at-alaba-international-market-lagos-nigeria
#4
Oludayo Tade, Okoro Paul Mmahi
This study examined the veiled chain of film piracy, a major crime in the Nigeria entertainment industry. Studies on film piracy in Nigeria have focused on its economic implications, both on the copyright owners and on the Nigerian economy. The organization of the activities of the film pirates has, however, been neglected. Narratives were extracted through in-depth interviews with pirates, "marketers," and "producers." Data indicated that pirates were insiders in the film marketing industry and included importers of foreign movies, registered and nonregistered retailers of Nigerian films, as well as marketers appointed by copyright owners to distribute their films...
February 1, 2017: International Journal of Offender Therapy and Comparative Criminology
https://www.readbyqxmd.com/read/28200111/real-time-assessment-of-health-care-requirements-during-the-zika-virus-epidemic-in-martinique
#5
Alessio Andronico, Frédérique Dorléans, Jean-Louis Fergé, Henrik Salje, Frédéric Ghawché, Aissatou Signate, Elise Daudens-Vaysse, Laure Baudouin, Timothée Dub, Maite Aubry, Van-Mai Cao-Lormeau, Martine Ledrans, Harold Noel, Henri-Pierre Mallet, Arnaud Fontanet, André Cabié, Simon Cauchemez
No abstract text is available yet for this article.
February 15, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28199263/travel-distance-to-cancer-treatment-facilities-in-the-deep-south
#6
Mary J Wills, Marilyn V Whitman, Thomas M English
Despite ongoing efforts to improve rural healthcare, the health problems facing rural communities persist. The lack of healthcare providers and infrastructure in rural areas has been linked to a number of negative consequences. Among the elderly rural population, the lack of proximal access presents greater barriers because many elderly people are further limited in their ability to travel and pay for services. In the Deep South specifically, rural residents experience limited access to care and overall poor health outcomes...
January 2017: Journal of Healthcare Management / American College of Healthcare Executives
https://www.readbyqxmd.com/read/28196299/activity-based-probes-for-the-ubiquitin-conjugation-deconjugation-machinery-new-chemistries-new-tools-and-new-insights
#7
REVIEW
David S Hewings, John A Flygare, Matthew Bogyo, Ingrid E Wertz
The reversible post-translational modification of proteins by ubiquitin and ubiquitin-like proteins regulates almost all cellular processes, by affecting protein degradation, localization, and complex formation. Deubiquitinases (DUBs) are proteases that remove ubiquitin modifications or cleave ubiquitin chains. Most DUBs are cysteine proteases, which makes them well suited for study by activity-based probes. These DUB probes report on deubiquitinase activity by reacting covalently with the active site in an enzyme-catalyzed manner...
February 14, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28186798/weyl-exceptional-rings-in-a-three-dimensional-dissipative-cold-atomic-gas
#8
Yong Xu, Sheng-Tao Wang, L-M Duan
Three-dimensional topological Weyl semimetals can generally support a zero-dimensional Weyl point characterized by a quantized Chern number or a one-dimensional Weyl nodal ring characterized by a quantized Berry phase in the momentum space. Here, in a dissipative system with particle gain and loss, we discover a new type of topological ring, dubbed a Weyl exceptional ring consisting of exceptional points at which two eigenstates coalesce. Such a Weyl exceptional ring is characterized by both a quantized Chern number and a quantized Berry phase, which are defined via the Riemann surface...
January 27, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28179567/serpin1-and-wscp-differentially-regulate-the-activity-of-the-cysteine-protease-rd21-during-plant-development-in-arabidopsis-thaliana
#9
Sachin Rustgi, Edouard Boex-Fontvieille, Christiane Reinbothe, Diter von Wettstein, Steffen Reinbothe
Proteolytic enzymes (proteases) participate in a vast range of physiological processes, ranging from nutrient digestion to blood coagulation, thrombosis, and beyond. In plants, proteases are implicated in host recognition and pathogen infection, induced defense (immunity), and the deterrence of insect pests. Because proteases irreversibly cleave peptide bonds of protein substrates, their activity must be tightly controlled in time and space. Here, we report an example of how nature evolved alternative mechanisms to fine-tune the activity of a cysteine protease dubbed RD21 (RESPONSIVE TO DESICCATION-21)...
February 8, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28176294/the-bayesian-new-statistics-hypothesis-testing-estimation-meta-analysis-and-power-analysis-from-a-bayesian-perspective
#10
John K Kruschke, Torrin M Liddell
In the practice of data analysis, there is a conceptual distinction between hypothesis testing, on the one hand, and estimation with quantified uncertainty on the other. Among frequentists in psychology, a shift of emphasis from hypothesis testing to estimation has been dubbed "the New Statistics" (Cumming 2014). A second conceptual distinction is between frequentist methods and Bayesian methods. Our main goal in this article is to explain how Bayesian methods achieve the goals of the New Statistics better than frequentist methods...
February 7, 2017: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/28171724/crown-ether-nucleophilic-catalysts-cencs-agents-for-enhanced-silicon-radiofluorination
#11
Susovan Jana, Mohammed H Al-Huniti, Bo Yeun Yang, Shuiyu Lu, Victor W Pike, Salvatore D Lepore
New bifunctional phase transfer agents were synthesized and investigated for their abilities to promote rapid fluorination at silicon. These agents, dubbed crown ether nucleophilic catalysts (CENCs), are 18-crown-6 derivatives containing a side-arm and a potentially nucleophilic hydroxyl group. These CENCs proved efficacious in the fluorination of hindered silicon substrates, with fluorination yields dependent on the length of linker connecting the metal chelating unit to the hydroxyl group. The efficacy of these CENCs was also demonstrated for rapid radiofluorination under mild conditions for eventual application in molecular imaging with positron emission tomography (PET)...
February 20, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28167606/the-deubiquitinating-enzyme-usp20-regulates-erk3-stability-and-biological-activity
#12
Simon Mathien, Paul Déléris, Mathilde Soulez, Laure Voisin, Sylvain Meloche
Extracellular signal-regulated kinase 3 (ERK3) is an atypical mitogen-activated protein (MAP) kinase whose regulatory mechanisms and biological functions remain superficially understood. Contrary to most protein kinases, ERK3 is a highly unstable protein that is subject to dynamic regulation by the ubiquitin-proteasome system. However, the effectors that control ERK3 ubiquitination and degradation are unknown. In this study, we carried out an unbiased functional loss-of-function screen of the human deubiquitinating enzyme (DUB) family and identified ubiquitin-specific protease 20 (USP20) as a novel ERK3 regulator...
February 6, 2017: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28165509/structural-basis-of-the-specificity-of-usp18-toward-isg15
#13
Anja Basters, Paul P Geurink, Annika Röcker, Katharina F Witting, Roya Tadayon, Sandra Hess, Marta S Semrau, Paola Storici, Huib Ovaa, Klaus-Peter Knobeloch, Günter Fritz
Protein modification by ubiquitin and ubiquitin-like modifiers (Ubls) is counteracted by ubiquitin proteases and Ubl proteases, collectively termed DUBs. In contrast to other proteases of the ubiquitin-specific protease (USP) family, USP18 shows no reactivity toward ubiquitin but specifically deconjugates the interferon-induced Ubl ISG15. To identify the molecular determinants of this specificity, we solved the crystal structures of mouse USP18 alone and in complex with mouse ISG15. USP18 was crystallized in an open and a closed conformation, thus revealing high flexibility of the enzyme...
February 6, 2017: Nature Structural & Molecular Biology
https://www.readbyqxmd.com/read/28164413/the-botrytis-cinerea-pak-kinase-bccla4-mediates-morphogenesis-growth-and-cell-cycle-regulating-processes-downstream-of-bcrac
#14
Anna Minz-Dub, Amir Sharon
Rac proteins are involved in a variety of cellular processes. Effector proteins that interact with active Rac convey the GTPase-generated signal to downstream developmental cascades and processes. Here we report on the analysis of the main effector and signal cascade downstream of BcRac, the Rac homolog of the grey mold fungus Botrytis cinerea. Several lines of evidence highlighted the p21-activated kinase Cla4 as an important effector of Rac in fungi. Analysis of Δbccla4 strains revealed that the BcCla4 protein was sufficient to mediate all of the examined BcRac-driven processes, including hyphal growth and morphogenesis, conidia production and pathogenicity...
February 6, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28160502/deubiquitinating-enzyme-usp22-positively-regulates-c-myc-stability-and-tumorigenic-activity-in-mammalian-and-breast-cancer-cells
#15
Dongyeon Kim, Ahyoung Hong, Hye In Park, Woo Hyun Shin, Lang Yoo, Seo Jeong Jeon, Kwang Chul Chung
The proto-oncogene c-Myc has a pivotal function in growth control, differentiation and apoptosis and is frequently affected in human cancer, including breast cancer. Ubiquitin-specific protease 22 (USP22), a member of the USP family of deubiquitinating enzymes (DUBs), mediates deubiquitination of target proteins, including histone H2B and H2A, telomeric repeat binding factor 1, and cyclin B1. USP22 is also a component of the mammalian SAGA transcriptional co-activating complex. In this study, we explored the functional role of USP22 in modulating c-Myc stability and its physiological relevance in breast cancer progression...
February 4, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28157556/self-taught-convolutional-neural-networks-for-short-text-clustering
#16
Jiaming Xu, Bo Xu, Peng Wang, Suncong Zheng, Guanhua Tian, Jun Zhao, Bo Xu
Short text clustering is a challenging problem due to its sparseness of text representation. Here we propose a flexible Self-Taught Convolutional neural network framework for Short Text Clustering (dubbed STC(2)), which can flexibly and successfully incorporate more useful semantic features and learn non-biased deep text representation in an unsupervised manner. In our framework, the original raw text features are firstly embedded into compact binary codes by using one existing unsupervised dimensionality reduction method...
January 12, 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28157208/rnf20-and-histone-h2b-ubiquitylation-exert-opposing-effects-in-basal-like-versus-luminal-breast-cancer
#17
Ohad Tarcic, Roy Z Granit, Ioannis S Pateras, Hadas Masury, Bella Maly, Yaara Zwang, Yosef Yarden, Vassilis G Gorgoulis, Eli Pikarsky, Ittai Ben-Porath, Moshe Oren
Breast cancer subtypes display distinct biological traits that influence their clinical behavior and response to therapy. Recent studies have highlighted the importance of chromatin structure regulators in tumorigenesis. The RNF20-RNF40 E3 ubiquitin ligase complex monoubiquitylates histone H2B to generate H2Bub1, while the deubiquitinase (DUB) USP44 can remove this modification. We found that RNF20 and RNF40 expression and global H2Bub1 are relatively low, and USP44 expression is relatively high, in basal-like breast tumors compared with luminal tumors...
February 3, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28139865/silencing-of-otub1-inhibits-migration-of-human-glioma-cells-in-vitro
#18
Li Xu, Jinquan Li, Zhen Bao, Peng Xu, Hao Chang, Jingjing Wu, Yuanqi Bei, Liuwan Xia, Peizhang Wu, Ke Yan, Bing Lu, Gang Cui
OTU domain-containing ubiquitin aldehyde-binding protein 1 (OTUB1) protein, a deubiquitinating enzyme (DUB) which belongs to the ovarian tumor (OTU) family, was reported to be associated with the development of various malignancies. However, the potential function of OTUB1 in human gliomas was still unclear. In this study, we sought to investigate the function of OTUB1 in the pathological process of gliomas and analyze its related clinical significance. Western blot and immunohistochemistry analyses demonstrated that OTUB1 was overexpressed in glioma tissues, and statistical analysis suggested the expression level of OTUB1 was significantly correlated with the WHO grades of human gliomas (P < 0...
January 31, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28128920/steering-asymmetric-lewis-acid-catalysis-exclusively-with-octahedral-metal-centered-chirality
#19
Lilu Zhang, Eric Meggers
Catalysts for asymmetric synthesis must be chiral. Metal-based asymmetric catalysts are typically constructed by assembling chiral ligands around a central metal. In this Account, a new class of effective chiral Lewis acid catalysts is introduced in which the octahedral metal center constitutes the exclusive source of chirality. Specifically, the here discussed class of catalysts are composed of configurationally stable, chiral-at-metal Λ-configured (left-handed propeller) or Δ-configured (right-handed propeller) iridium(III) or rhodium(III) complexes containing two bidentate cyclometalating 5-tert-butyl-2-phenylbenzoxazole (dubbed IrO and RhO) or 5-tert-butyl-2-phenylbenzothiazole (dubbed IrS and RhS) ligands in addition to two exchange-labile acetonitriles...
January 27, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28113975/a-fast-optimization-method-for-general-binary-code-learning
#20
Fumin Shen, Xiang Zhou, Yang Yang, Jingkuan Song, Heng Shen, Dacheng Tao
Hashing or binary code learning has been recognized to accomplish efficient near neighbor search, and has thus attracted broad interests in recent retrieval, vision and learning studies. One main challenge of learning to hash arises from the involvement of discrete variables in binary code optimization. While the widely-used continuous relaxation may achieve high learning efficiency, the pursued codes are typically less effective due to accumulated quantization error. In this work, we propose a novel binary code optimization method, dubbed Discrete Proximal Linearized Minimization (DPLM), which directly handles the discrete constraints during the learning process...
September 22, 2016: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
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