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https://www.readbyqxmd.com/read/29334355/retraction-genetic-characterization-and-assessment-of-demographic-bottleneck-in-caspian-horse-population
#1
(no author information available yet)
[This delete the article DOI: 10.14715/cmb/2017.63.11.16.].
December 31, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/29333917/role-of-cortical-microbleeds-in-cognitive-impairment-in%C3%A2-vivo-behavioral-and-imaging-characterization-of-a-novel-murine-model
#2
Sandrine Bergeron, Yaohua Chen, Florent Auger, Julie Deguil, Nicolas Durieux, Emilie Skrobala, Romain Barus, Camille Potey, Charlotte Cordonnier, Florence Pasquier, Laura Ravasi, Régis Bordet, Sophie Gautier
Cerebral microbleeds (CMBs) could contribute to cognitive impairment in the general population and in patients with dementia. We designed a study to (i) develop a murine model of CMBs, (ii) assess whether CMBs affect cognition in this model and (iii) assess whether this model is sensitive to pharmacological modulation. Male C57Bl6/J mice were stereotactically administered collagenase to induce cortical lesion analysed by MRI at 24 h. CMB-mice were assessed at six weeks post-lesion for cognitive performances (Barnes maze and Touchscreen automated paired-associated learning (PAL) task) and for cerebral metabolism (in vivo PET/CT with fluorodeoxyglucose (FDG))...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29314856/prolinimines-n-amino-l-pro-methyl-ester-hydrazine-schiff-bases-from-a-fish-gastrointestinal-tract-derived-fungus-trichoderma-sp-cmb-f563
#3
Osama G Mohamed, Zeinab G Khalil, Robert J Capon
A rice cultivation of a fish gastrointestinal tract-derived fungus, Trichoderma sp. CMB-F563, yielded natural products incorporating a rare hydrazine moiety, embedded within a Schiff base. Structures inclusive of absolute configurations were assigned to prolinimines A-D (1-4) on the basis of detailed spectroscopic and C3 Marfey's analysis, as well as biosynthetic considerations, biomimetic total synthesis, and chemical transformations. Of note, monomeric 1 proved to be acid labile and, during isolation, underwent quantitative transformation to dimeric 3 and trimeric 4...
January 9, 2018: Organic Letters
https://www.readbyqxmd.com/read/29313074/source-apportionment-of-total-suspended-particles-tsp-by-positive-matrix-factorization-pmf-and-chemical-mass-balance-cmb-modeling-in-ahvaz-iran
#4
Khosro Ashrafi, Reza Fallah, Mostafa Hadei, Marayam Yarahmadi, Abbas Shahsavani
There is a compelling need for apportionment of pollutants' sources to facilitate their reduction through proper management plans. The present study was designed to determine the contribution of each possible source of total suspended particles in Ahvaz's ambient air using positive matrix factorization (PMF), chemical mass balance (CMB), and the SPECIATE database. The sampling program undertaken followed EPA's guidelines and finally resulted in 74 samples. The concentration of 33 elemental and 10 ionic species were measured during a whole year...
January 8, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29286789/beyond-the-boost-measuring-the-intrinsic-dipole-of-the-cosmic-microwave-background-using-the-spectral-distortions-of-the-monopole-and-quadrupole
#5
Siavash Yasini, Elena Pierpaoli
We present a general framework for the accurate spectral modeling of the low multipoles of the cosmic microwave background (CMB) as observed in a boosted frame. In particular, we demonstrate how spectral measurements of the low multipoles can be used to separate the motion-induced dipole of the CMB from a possible intrinsic dipole component. In a moving frame, the leakage of an intrinsic dipole moment into the CMB monopole and quadrupole induces spectral distortions with distinct frequency functions that, respectively, peak at 337 and 276 GHz...
December 1, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/29232251/are-the-brain-s-vascular-and-alzheimer-pathologies-additive-or-interactive
#6
Rebecca Koncz, Perminder Sachdev
PURPOSE OF REVIEW: Alzheimer's disease and cerebrovascular disease (CVD) commonly co-occur. Whether CVD promotes the progression of Alzheimer's disease pathology remains a source of great interest. Recent technological developments have enabled us to examine their inter-relationship using quantifiable, biomarker-based approaches. We provide an overview of advances in understanding the relationship between vascular and Alzheimer's disease pathologies, with particular emphasis on β-amyloid and tau as measured by positron emission tomography and cerebrospinal fluid (CSF) concentration, and magnetic resonance imaging markers of small vessel disease (SVD)...
December 9, 2017: Current Opinion in Psychiatry
https://www.readbyqxmd.com/read/29223082/deep-rooted-apple-trees-decrease-groundwater-recharge-in-the-highland-region-of-the-loess-plateau-china
#7
Zhiqiang Zhang, Min Li, Bingcheng Si, Hao Feng
Unlike recharge in shallow rooted ecosystems, estimating the groundwater recharge beneath deep rooted plants that absorb water from deep soil remains difficult. The purpose of this research is to develop an approach to estimate the groundwater recharge beneath deep-rooted vegetation by combining water mass balance and chloride mass balance (CMB) and to quantify how the conversion of shallow-rooted cropland to deep-rooted apple orchards changes groundwater recharge. The proposed groundwater recharge rate under deep-rooted vegetation in this study is the difference between the groundwater recharge rate in a cropland (obtained using CMB) and the mean annual soil water storage deficit beneath an adjacent deep-rooted vegetation...
December 6, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29222944/cerebral-microbleeds-an-mri-review-of-common-and-less-common-causes
#8
REVIEW
Dimitri Renard
Cerebral microbleeds (CMB) are small foci of (acute, subacute, or chronic) blood products, best seen using MRI techniques sensitive to iron deposits (i.e. gradient-echo T2*-weighted and susceptibility-weighted imaging), frequently encountered in small vessel disease (SVD, with hypertensive vasculopathy and cerebral amyloid angiopathy as most frequent conditions) and also in other disorders. In this review, we will mainly discuss the MRI characteristics of CMB and the associated MRI abnormalities encountered in common and less common SVD and non-SVD conditions...
December 9, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29209659/imaging-paleoslabs-in-the-d%C3%A2-layer-beneath-central-america-and-the-caribbean-using-seismic-waveform-inversion
#9
Anselme F E Borgeaud, Kenji Kawai, Kensuke Konishi, Robert J Geller
D″ (Dee double prime), the lowermost layer of the Earth's mantle, is the thermal boundary layer (TBL) of mantle convection immediately above the Earth's liquid outer core. As the origin of upwelling of hot material and the destination of paleoslabs (downwelling cold slab remnants), D″ plays a major role in the Earth's evolution. D″ beneath Central America and the Caribbean is of particular geodynamical interest, because the paleo- and present Pacific plates have been subducting beneath the western margin of Pangaea since ~250 million years ago, which implies that paleoslabs could have reached the lowermost mantle...
November 2017: Science Advances
https://www.readbyqxmd.com/read/29201555/background-and-distribution-of-lobar-microbleeds-in-cognitive-dysfunction
#10
Hirofumi Matsuyama, Yuichiro Ii, Masayuki Maeda, Maki Umino, Yukito Ueda, Ken-Ichi Tabei, Hirotaka Kida, Masayuki Satoh, Akihiro Shindo, Akira Taniguchi, Ryosuke Takahashi, Hidekazu Tomimoto
Objectives: Cerebral microbleeds (CMBs) are often observed in memory clinic patients. It has been generally accepted that deep CMBs (D-CMBs) result from hypertensive vasculopathy (HV), whereas strictly lobar CMBs (SL-CMBs) result from cerebral amyloid angiopathy (CAA) which frequently coexists with Alzheimer's disease (AD). Mixed CMBs (M-CMBs) have been partially attributed to HV and also partially attributed to CAA. The aim of this study was to elucidate the differences between SL-CMBs and M-CMBs in terms of clinical features and regional distribution...
November 2017: Brain and Behavior
https://www.readbyqxmd.com/read/29183952/cerebellar-hematoma-location-implications-for-the-underlying-microangiopathy
#11
Marco Pasi, Sandro Marini, Andrea Morotti, Gregoire Boulouis, Li Xiong, Andreas Charidimou, Alison M Ayres, Myung Joo Lee, Alessandro Biffi, Joshua N Goldstein, Jonathan Rosand, M Edip Gurol, Steven M Greenberg, Anand Viswanathan
BACKGROUND AND PURPOSE: Spontaneous cerebellar intracerebral hemorrhage (ICH) has been reported to be mainly associated with vascular changes secondary to hypertension. However, a subgroup of cerebellar ICH seems related to vascular amyloid deposition (cerebral amyloid angiopathy). We sought to determine whether location of hematoma in the cerebellum (deep and superficial regions) was suggestive of a particular hemorrhage-prone small-vessel disease pathology (cerebral amyloid angiopathy or hypertensive vasculopathy)...
November 28, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29180960/association-of-cerebral-small-vessel-disease-burden-and-health-related-quality-of-life-after-acute-ischemic-stroke
#12
Yan Liang, Yang-Kun Chen, Min Deng, Vincent C T Mok, De-Feng Wang, Gabor S Ungvari, Chiu-Wing W Chu, Akane Kamiya, Wai-Kwong Tang
Objective: Cerebral small vessel disease (SVD) is associated with increased mortality, disability and cognitive decline, depression in stroke survivors. This study examined the association between SVD burden, defined by a combination of SVD markers, and health-related quality of life (HRQoL) in acute ischemic stroke. Methods: Patients admitted with acute ischemic stroke of any etiology were prospectively screened between January 2010 to December 2014 and enrolled in the study if they met study entry criteria...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/29168517/crossed-beam-polyatomic-reaction-dynamics-recent-advances-and-new-insights
#13
REVIEW
Huilin Pan, Kopin Liu, Adriana Caracciolo, Piergiorgio Casavecchia
Over the past ten years or so, great advances in our understanding of the dynamics of elementary (bimolecular) polyatomic reactions in the gas-phase have occurred. This has been made possible by critical improvements (a) in crossed molecular beam (CMB) instruments with rotating mass spectrometric detection and time-of-flight analysis, especially following the implementation of soft ionization (by tunable low energy electrons or vacuum-ultraviolet synchrotron radiation) for product detection with increased sensitivity and universal detection power, and (b) in REMPI-slice velocity map ion imaging (VMI) detection techniques in pulsed CMB experiments for obtaining product pair-correlated information through high-resolution measurements directly in the center of mass system...
December 11, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/29117953/brain-microbleeds-anticoagulation-and-hemorrhage-risk-meta-analysis-in-stroke-patients-with-af
#14
REVIEW
Andreas Charidimou, Christopher Karayiannis, Tae-Jin Song, Dilek Necioglu Orken, Vincent Thijs, Robin Lemmens, Jinkwon Kim, Su Mei Goh, Thanh G Phan, Cathy Soufan, Ronil V Chandra, Lee-Anne Slater, Shamir Haji, Vincent Mok, Solveig Horstmann, Kam Tat Leung, Yuichiro Kawamura, Nobuyuki Sato, Naoyuki Hasebe, Tsukasa Saito, Lawrence K S Wong, Yannie Soo, Roland Veltkamp, Kelly D Flemming, Toshio Imaizumi, Velandai Srikanth, Ji Hoe Heo
OBJECTIVES: To assess the association between cerebral microbleeds (CMBs) and future spontaneous intracerebral hemorrhage (ICH) risk in ischemic stroke patients with nonvalvular atrial fibrillation (AF) taking oral anticoagulants. METHODS: This was a meta-analysis of cohort studies with >50 patients with recent ischemic stroke and documented AF, brain MRI at baseline, long-term oral anticoagulation treatment, and ≥6 months of follow-up. Authors provided summary-level data on stroke outcomes stratified by CMB status...
December 5, 2017: Neurology
https://www.readbyqxmd.com/read/29110467/development-of-pm2-5-source-profiles-using-a-hybrid-chemical-transport-receptor-modeling-approach
#15
Cesunica Ivey, Heather Holmes, Guo-Liang Shi, Sivaraman Balachandran, Yongtao Hu, Armistead G Russell
Laboratory-based or in-situ PM2.5 source profiles may not represent the pollutant composition for the sources in a different study location due to spatially and temporally varying characteristics, such as fuel or crustal element composition, or due to differences in emissions behavior under ambient versus laboratory conditions. In this work, PM2.5 source profiles were estimated for 20 sources using a novel optimization approach that incorporates observed concentrations with source impacts from a chemical transport model (CTM) to capture local pollutant characteristics...
November 7, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29103262/genetic-diversity-and-natural-selection-in-42-kda-region-of-plasmodium-vivax-merozoite-surface-protein-1-from-china-myanmar-endemic-border
#16
Xia Zhou, Ernest Tambo, Jing Su, Qiang Fang, Wei Ruan, Jun-Hu Chen, Ming-Bo Yin, Xiao-Nong Zhou
Plasmodium vivax merozoite surface protein-1 (PvMSP1) gene codes for a major malaria vaccine candidate antigen. However, its polymorphic nature represents an obstacle to the design of a protective vaccine. In this study, we analyzed the genetic polymorphism and natural selection of the C-terminal 42 kDa fragment within PvMSP1 gene (Pv MSP142) from 77 P. vivax isolates, collected from imported cases of China-Myanmar border (CMB) areas in Yunnan province and the inland cases from Anhui, Yunnan, and Zhejiang province in China during 2009-2012...
October 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29096960/copper-immobilization-by-biochar-and-microbial-community-abundance-in-metal-contaminated-soils
#17
Francisca Moore, María-Eugenia González, Naser Khan, Gustavo Curaqueo, Miguel Sanchez-Monedero, Joaquín Rilling, Esteban Morales, Marcelo Panichini, Ana Mutis, Milko Jorquera, Jaime Mejias, Juan Hirzel, Sebastián Meier
Biochar (BC) is gaining attention as a soil amendment that can remediate metal polluted soils. The simultaneous effects of BC on copper (Cu) mobility, microbial activities in soil using metallophytes have scarcely been addressed. The objective of this study was to evaluate the effects of biochar BCs on Cu immobilization and over soil microbial communities in a Cu-contaminated soil evaluated over a two-year trial. A Cu-contaminated soil (338mgkg(-1)) was incubated with chicken manure biochar (CMB) or oat hull biochar (OHB) at rates of 1 and 5% w/w...
October 30, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29078301/modeling-and-replicating-statistical-topology-and-evidence-for-cmb-nonhomogeneity
#18
Robert J Adler, Sarit Agami, Pratyush Pranav
Under the banner of "big data," the detection and classification of structure in extremely large, high-dimensional, data sets are two of the central statistical challenges of our times. Among the most intriguing new approaches to this challenge is "TDA," or "topological data analysis," one of the primary aims of which is providing nonmetric, but topologically informative, preanalyses of data which make later, more quantitative, analyses feasible. While TDA rests on strong mathematical foundations from topology, in applications, it has faced challenges due to difficulties in handling issues of statistical reliability and robustness, often leading to an inability to make scientific claims with verifiable levels of statistical confidence...
November 7, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29077965/phosphorus-bioavailability-in-increased-protein-reduced-fiber-canola-meal-conventional-canola-meal-and-soybean-meal-fed-to-crossbred-chicks
#19
C D Hanna, C K Foran, P L Utterback, H H Stein, C M Parsons
Three experiments were conducted to evaluate 3 increased-protein, reduced-fiber canola meals (CM) (CMA, CMB, and Test CM), 2 conventional CM (CCM), and 2 soybean meals (SBM). For determination of P bioavailability in CM and SBM, a P-deficient cornstarch-dextrose-SBM basal diet was fed as Diet 1. The latter basal diet was then supplemented with 0.05 and 0.10% P from KH2PO4 or 12.5 and 25% of a CM or SBM. In addition, the effect of phytase enzyme on bioavailability of the P in CMA, Test CM, and one of the CCM was determined using P-deficient 45% CM-cornstarch-dextrose diets (0...
October 25, 2017: Poultry Science
https://www.readbyqxmd.com/read/29057337/the-cosmic-microwave-background-radiation-power-spectrum-as-a-random-bit-generator-for-symmetric-and-asymmetric-key-cryptography
#20
Jeffrey S Lee, Gerald B Cleaver
In this note, the Cosmic Microwave Background (CMB) Radiation is shown to be capable of functioning as a Random Bit Generator, and constitutes an effectively infinite supply of truly random one-time pad values of arbitrary length. It is further argued that the CMB power spectrum potentially conforms to the FIPS 140-2 standard. Additionally, its applicability to the generation of a (n × n) random key matrix for a Vernam cipher is established.
October 2017: Heliyon
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