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https://www.readbyqxmd.com/read/28339253/distinct-evolutions-of-weyl-fermion-quasiparticles-and-fermi-arcs-with-bulk-band-topology-in-weyl-semimetals
#1
N Xu, G Autès, C E Matt, B Q Lv, M Y Yao, F Bisti, V N Strocov, D Gawryluk, E Pomjakushina, K Conder, N C Plumb, M Radovic, T Qian, O V Yazyev, J Mesot, H Ding, M Shi
The Weyl semimetal phase is a recently discovered topological quantum state of matter characterized by the presence of topologically protected degeneracies near the Fermi level. These degeneracies are the source of exotic phenomena, including the realization of chiral Weyl fermions as quasiparticles in the bulk and the formation of Fermi arc states on the surfaces. Here, we demonstrate that these two key signatures show distinct evolutions with the bulk band topology by performing angle-resolved photoemission spectroscopy, supported by first-principles calculations, on transition-metal monophosphides...
March 10, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28334676/manual-motor-speed-dysfunction-as-a-neurocognitive-endophenotype-in-euthymic-bipolar-disorder-patients-and-their-healthy-relatives-evidence-from-a-5-year-follow-up-study
#2
P Correa-Ghisays, V Balanzá-Martínez, G Selva-Vera, J Vila-Francés, E Soria-Olivas, J Vivas-Lalinde, C San Martín, A M Borrás, R Ayesa-Arriola, J Sanchez-Moreno, J Sánchez-Ort, B Crespo-Facorro, E Vieta, R Tabarés-Seisdedos
BACKGROUND: Few studies have examined Manual Motor Speed (MMS) in bipolar disorder (BD). The aim of this longitudinal, family study was to explore whether dysfunctional MMS represents a neurocognitive endophenotype of BD. METHODS: A sample of 291 subjects, including 131 BD patients, 77 healthy first-degree relatives (BD-Rel), and 83 genetically-unrelated healthy controls (HC), was assessed with the Finger-Tapping Test (FTT) on three occasions over a 5-year period...
March 16, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28334673/presence-of-the-%C3%AE-triketone-herbicide-tefuryltrione-in-drinking-water-sources-and-its-degradation-product-in-drinking-waters
#3
Motoyuki Kamata, Mari Asami, Yoshihiko Matsui
Triketone herbicides are becoming popular because of their herbicidal activity against sulfonylurea-resistant weeds. Among these herbicides, tefuryltrione (TFT) is the first registered herbicide for rice farming, and recently its distribution has grown dramatically. In this study, we developed analytical methods for TFT and its degradation product 2-chloro-4-methylsulfonyl-3-[(tetrahydrofuran-2-yl-methoxy) methyl] benzoic acid (CMTBA). TFT was found frequently in surface waters in rice production areas at concentrations as high as 1...
March 20, 2017: Chemosphere
https://www.readbyqxmd.com/read/28334644/low-level-inorganic-arsenic-exposure-and-neuropsychological-functioning-in-american-indian-elders
#4
Clint R Carroll, Carolyn Noonan, Eva M Garroutte, Ana Navas-Acien, Steven P Verney, Dedra Buchwald
BACKGROUND: Inorganic arsenic at high and prolonged doses is highly neurotoxic. Few studies have evaluated whether long-term, low-level arsenic exposure is associated with neuropsychological functioning in adults. OBJECTIVES: To investigate the association between long-term, low-level inorganic arsenic exposure and neuropsychological functioning among American Indians aged 64-95. METHODS: We assessed 928 participants in the Strong Heart Study by using data on arsenic species in urine samples collected at baseline (1989-1991) and results of standardized tests of global cognition, executive functioning, verbal learning and memory, fine motor functioning, and speed of mental processing administered during comprehensive follow-up evaluations in 2009-2013...
March 18, 2017: Environmental Research
https://www.readbyqxmd.com/read/28333580/air-quality-measurements-from-rubber-bands-to-tapping-the-rainbow
#5
George M Hidy, Peter K Mueller, Samuel L Altshuler, Judith C Chow, John G Watson
It is axiomatic that good measurements are integral to good public policy for environmental protection. The generalized term for "measurements" includes sampling and quantitation, data integrity, documentation, network design, sponsorship and operations, and archiving and accessing for applications. Each of these components has evolved and advanced over the last 200 years as knowledge of atmospheric chemistry and physics has matured. Air quality was first detected by what people could see smoke and smell contaminated air...
March 23, 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/28333569/are-preferences-for-aggressive-medical-treatment-associated-with-healthcare-utilization-in-the-very-old
#6
Steven M Albert, June R Lunney, Lei Ye, Robert Boudreau, Diane Ives, Suzanne Satterfield, Cameron M Kaplan, Teresa Waters, Hilsa N Ayonayon, Susan M Rubin, Anne B Newman, Tamara Harris
OBJECTIVES: To examine the relationship between end-of-life (EOL) treatment preferences and recent hospitalization or emergency department (ED) care in the very old. DESIGN: Quarterly telephone follow-up of participants in the EOL in the Very Old cohort. SETTING: The EOL in the Very Old Age cohort drew from 1403 participants in the Health, Aging, and Body Composition (Health ABC) study who were alive in year 15 of follow-up. 87.5% (n = 1227) were successfully recontacted and enrolled...
March 23, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28332181/involvement-of-testicular-daam1-expression-in-zinc-protection-against-cadmium-induced-male-rat-reproductive-toxicity
#7
Marouane Chemek, Massimo Venditti, Sana Boughamoura, Safa Ben Mimouna, Imed Messaoudi, Sergio Minucci
In order to verify the effects of exposure to Cd and Zn on testicular DAAM1 gene and protein expression and also to ascertain their involvement in the protective role of Zn in prevent the testicular toxicity Cd-induced in male offspring rats at adult age after gestational and lactational exposure, male offspring rats, from mothers receiving either tap water, Cd, Zn or Cd + Zn during gestation and lactation periods, were scarified on postnatal days (PND) 70. The reproductive organ (testis, epididymis and vesicle seminal) were collected, weighed and analysed...
March 23, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28331834/ultrasound-guided-electrochemotherapy-for-the-treatment-of-a-clear-cell-thymoma-in-a-cat
#8
Enrico Pierluigi Spugnini, Francesco Menicagli, Michela Pettorali, Alfonso Baldi
A twelve-year-old male castrated domestic shorthair cat was presented for rapidly progressing respiratory distress. The cat was depressed, tachypneic and moderately responsive. Ultrasonography showed a mediastinal mass associated with a significant pleural effusion that needed tapping every five to seven days. Ultrasound guided biopsy yielded a diagnosis of clear cell thymoma upon histopathology. After complete staging procedures, the owner elected to treat the cat with electrochemotherapy (ECT) using systemic bleomycin...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28330257/generation-of-an-inducible-system-to-express-polo-like-kinase-cdc5-as-tap-fusion-protein-during-meiosis-in-saccharomyces-cerevisiae
#9
Rajni Vaid, Kamal Dev, Michael Lichten, Anuradha Sourirajan
Tandem affinity purification (TAP) is a highly efficient method for isolation of protein complexes from endogenous biological macromolecules. TAP system consists of dual affinity tags that facilitates the sequential purification of the desired proteins expressed at their low levels in vivo. Polo-like kinases (PLK) are serine/threonine protein kinases that are the crucial regulators of cell cycle. Cdc5, the solitary PLK in budding yeast Saccharomyces cerevisiae, has diverse array of targets in cell cycle. The present study was undertaken to construct an estrogen-inducible system for expression of Cdc5-TAP to isolate the substrates of Cdc5 during meiosis, particularly, pachytene stage of meiosis I...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28329071/association-of-mild-obstructive-sleep-apnea-with-cognitive-performance-excessive-daytime-sleepiness-and-quality-of-life-in-the-general-population-the-korean-genome-and-epidemiology-study-koges
#10
Hyun Kim, Robert J Thomas, Chang-Ho Yun, Rhoda Au, Seung Ku Lee, Sunghee Lee, Chol Shin
Study Objectives: Research points to impaired cognitive performance in sleep clinic patients with obstructive sleep apnea (OSA). However, inconsistent findings from various epidemiologic studies make this relationship less generalizable. The current study investigated the association between OSA functional outcome measures, such as cognition, daytime sleepiness, and quality of life, in a Korean general population sample. Methods: A total of 1,492 participants from the Korean Genome and Epidemiology Study (KoGES) were included in the analyses...
January 28, 2017: Sleep
https://www.readbyqxmd.com/read/28328499/importance-of-matching-physical-friction-hardness-and-texture-in-creating-realistic-haptic-virtual-surfaces
#11
Heather Culbertson, Katherine J Kuchenbecker
Interacting with physical objects through a tool elicits tactile and kinesthetic sensations that comprise your haptic impression of the object. These cues, however, are largely missing from interactions with virtual objects, yielding an unrealistic user experience. This article evaluates the realism of virtual surfaces rendered using haptic models constructed from data recorded during interactions with real surfaces. The models include three components: surface friction, tapping transients, and texture vibrations...
January 2017: IEEE Transactions on Haptics
https://www.readbyqxmd.com/read/28327346/genuine-eye-contact-elicits-self-referential-processing
#12
Jonne O Hietanen, Jari K Hietanen
The effect of eye contact on self-awareness was investigated with implicit measures based on the use of first-person singular pronouns in sentences. The measures were proposed to tap into self-referential processing, that is, information processing associated with self-awareness. In addition, participants filled in a questionnaire measuring explicit self-awareness. In Experiment 1, the stimulus was a video clip showing another person and, in Experiment 2, the stimulus was a live person. In both experiments, participants were divided into two groups and presented with the stimulus person either making eye contact or gazing downward, depending on the group assignment...
March 16, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28327094/finger-tapping-impairments-are-highly-sensitive-for-evaluating-upper-motor-neuron-lesions
#13
Afsaneh Shirani, Braeden D Newton, Darin T Okuda
BACKGROUND: Identifying highly sensitive and reliable neurological exam components are crucial in recognizing clinical deficiencies. This study aimed to investigate finger tapping performance differences between patients with CNS demyelinating lesions and healthy control subjects. METHODS: Twenty-three patients with multiple sclerosis or clinically isolated syndrome with infratentorial and/or cervical cord lesions on MRI, and 12 healthy controls were videotaped while tapping the tip of the index finger against the tip and distal crease of the thumb using both the dominant and non-dominant hand...
March 21, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28326308/infection-sources-of-a-common-non-tuberculous-mycobacterial-pathogen-mycobacterium-avium-complex
#14
REVIEW
Yukiko Nishiuchi, Tomotada Iwamoto, Fumito Maruyama
Numerous studies have revealed a continuous increase in the worldwide incidence and prevalence of non-tuberculous mycobacteria (NTM) diseases, especially pulmonary Mycobacterium avium complex (MAC) diseases. Although it is not clear why NTM diseases have been increasing, one possibility is an increase of mycobacterial infection sources in the environment. Thus, in this review, we focused on the infection sources of pathogenic NTM, especially MAC. The environmental niches for MAC include water, soil, and dust...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28326164/ptsd-symptom-severity-relates-to-cognitive-and-psycho-social-dysfunctioning-a-study-with-congolese-refugees-in-uganda
#15
Herbert E Ainamani, Thomas Elbert, David K Olema, Tobias Hecker
Background: In the ongoing conflict in the Democratic Republic of the Congo (DRC), civilians have been heavily exposed to traumatic stressors. Traumatizing experiences cumulatively heighten the risk for trauma-related disorders, and with it affect cognitive and psycho-social functioning. Objectives: We aimed at investigating the association between trauma-related disorders and cognitive and psycho-social functioning and hypothesized that PTSD symptom severity would negatively correlate with executive functioning, working memory and psycho-social functioning in everyday life...
2017: European Journal of Psychotraumatology
https://www.readbyqxmd.com/read/28325622/the-effect-of-different-nasal-irrigation-solutions-following-septoplasty-and-concha-radiofrequency-a-prospective-randomized-study
#16
Hanifi Kurtaran, K Serife Ugur, Ceyda Sel Yilmaz, Mesut Kaya, Alper Yuksel, Nebil Ark, Mehmet Gunduz
INTRODUCTION: Nasal irrigation solutions are widely used following endonasal surgery. These irrigation solutions remove infective debris and crusts, reducing the probability of synechia formation, and accelerate mucosal healing. OBJECTIVE: The aim of the present study was to compare the effects of nasal irrigation solutions with different contents following septoplasty and concha radiofrequency. METHODS: The present study was a prospective, randomized, controlled simple blind study of 120 patients who underwent septoplasty and bilateral concha radiofrequency...
February 22, 2017: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28324963/quantitative-assessment-of-arm-tremor-in-people-with-neurological-disorders
#17
Jeonghee Kim, Claire Parnell, Thomas Wichmann, Stephen P DeWeerth
Abnormal oscillatory movement (i.e. tremor) is usually evaluated with qualitative assessment by clinicians, and quantified with subjective scoring methods. These methods are often inaccurate. We utilized a quantitative and standardized task based on the Fitts' law to assess the performance of arm movement with tremor by controlling a gyration mouse on a computer. The experiment included the center-out tapping (COT) and rectangular track navigation (RTN) tasks. We report the results of a pilot study in which we collected the performance for healthy participants in whom tremor was simulated by imposing oscillatory movements to the arm with a vibration motor...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28323844/nuclear-localization-of-amyloid-%C3%AE-precursor-protein-binding-protein-fe65-is-dependent-on-regulated-intramembrane-proteolysis
#18
Niina A Koistinen, Anna K Edlund, Preeti K Menon, Elena V Ivanova, Smaranda Bacanu, Kerstin Iverfeldt
Fe65 is an adaptor protein involved in both processing and signaling of the Alzheimer-associated amyloid-β precursor protein, APP. Here, the subcellular localization was further investigated using TAP-tagged Fe65 constructs expressed in human neuroblastoma cells. Our results indicate that PTB2 rather than the WW domain is important for the nuclear localization of Fe65. Electrophoretic mobility shift of Fe65 caused by phosphorylation was not detected in the nuclear fraction, suggesting that phosphorylation could restrict nuclear localization of Fe65...
2017: PloS One
https://www.readbyqxmd.com/read/28320524/seasonally-related-effects-on-natural-organic-matter-characteristics-from-source-to-tap-in-korea
#19
S H So, I H Choi, H C Kim, S K Maeng
In this study, natural organic matter (NOM) characteristics were investigated over three years of monthly monitoring to determine the effect of seasonal variations on NOM levels from source to tap. Liquid chromatography with organic carbon detection (LC-OCD) was used to determine NOM characteristics and the level of reduction of biodegradable dissolved organic carbon (BDOC). The average dissolved organic matter concentration in the source water (Lake Paldang, Korea) was not significantly different between summer and winter...
March 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28320141/functional-magnetic-resonance-imaging-responses-in-cadasil
#20
Ikreet Cheema, Aaron R Switzer, Cheryl R McCreary, Michael D Hill, Richard Frayne, Bradley G Goodyear, Eric E Smith
OBJECTIVES: The magnitude of the blood oxygen dependent level (BOLD) functional MRI (fMRI) response to visual stimulation is reduced in the small vessel disease cerebral amyloid angiopathy (CAA), reflecting impaired vascular reactivity. We determined whether BOLD responses were reduced in another small vessel disease, cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL). METHODS: BOLD fMRI data were collected using a visual stimulus (contrast-reversing checkerboard) and motor task (finger-tapping)...
April 15, 2017: Journal of the Neurological Sciences
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