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https://www.readbyqxmd.com/read/29332276/variability-and-reliability-of-pop-concentrations-in-multiple-breast-milk-samples-collected-from-the-same-mothers
#1
Risa Kakimoto, Masayoshi Ichiba, Akiko Matsumoto, Kunihiko Nakai, Nozomi Tatsuta, Miyuki Iwai-Shimada, Momoko Ishiyama, Noriko Ryuda, Takashi Someya, Ieyasu Tokumoto, Daisuke Ueno
Risk assessment of infant using a realistic persistent organic pollutant (POP) exposure through breast milk is essential to devise future regulation of POPs. However, recent investigations have demonstrated that POP levels in breast milk collected from the same mother showed a wide range of variation daily and monthly. To estimate the appropriate sample size of breast milk from the same mother to obtain reliable POP concentrations, breast milk samples were collected from five mothers living in Japan from 2006 to 2012...
January 13, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29332274/callitriche-cophocarpa-water-starwort-proteome-under-chromate-stress-evidence-for-induction-of-a-quinone-reductase
#2
Paweł Kaszycki, Aleksandra Dubicka-Lisowska, Joanna Augustynowicz, Barbara Piwowarczyk, Wojciech Wesołowski
Chromate-induced physiological stress in a water-submerged macrophyte Callitriche cophocarpa Sendtn. (water starwort) was tested at the proteomic level. The oxidative stress status of the plant treated with 1 mM Cr(VI) for 3 days revealed stimulation of peroxidases whereas catalase and superoxide dismutase activities were similar to the control levels. Employing two-dimensional electrophoresis, comparative proteomics enabled to detect five differentiating proteins subjected to identification with mass spectrometry followed by an NCBI database search...
January 13, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29332251/clinical-pharmacokinetics-and-pharmacodynamics-of-telavancin-compared-with-the-other-glycopeptides
#3
REVIEW
Valentin Al Jalali, Markus Zeitlinger
Telavancin was discovered by modifying the chemical structure of vancomycin and belongs to the group of lipoglycopeptides. It employs its antimicrobial potential through two distinct mechanisms of action: inhibition of bacterial cell wall synthesis and induction of bacterial membrane depolarization and permeabilization. In this article we review the clinically relevant pharmacokinetic and pharmacodynamic data of telavancin. For comparison, the pharmacokinetic and pharmacodynamic data of the other glycopeptides are presented...
January 13, 2018: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/29332234/attitudes-of-u-s-psychiatry-residents-and-fellows-towards-mental-illness-and-its-causes-a-comparison-study-with-medical-students
#4
Catherine Chiles, Elina Stefanovics, Robert Rosenheck
Stigma towards people with mental illness remains a burden for patients and healthcare providers. This study at a large US university examined the attitudes of psychiatry residents and fellows towards mental illness and its causes, and whether their attitudes differed from the medical student attitudes previously studied utilizing the same survey method. An electronic questionnaire examining attitudes toward people with mental illness, causes of mental Illness, and treatment efficacy was used to survey the attitudes of psychiatry residents and fellows...
January 13, 2018: Psychiatric Quarterly
https://www.readbyqxmd.com/read/29332221/german-words-still-used-by-japanese-obstetrics-and-gynecology-doctors
#5
Shigeki Matsubara
BACKGROUND: German used to be frequently employed in Japanese obstetric and gynecologic (OBGYN) practice; however, it is now less frequently used. Description and analysis of this situation may shed some light on the change of OBGYN practice and education in Japan, which may at least partly hold true to counties other than Japan. METHODS: Three eras were classified according to the relationship between German and Japanese OBGYN, with each era characterized. Frequently used German words in Japanese OBGYN practice were described as examples...
January 13, 2018: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29332192/how-participatory-should-environmental-governance-be-testing-the-applicability-of-the-vroom-yetton-jago-model-in-public-environmental-decision-making
#6
Nikolas Lührs, Nicolas W Jager, Edward Challies, Jens Newig
Public participation is potentially useful to improve public environmental decision-making and management processes. In corporate management, the Vroom-Yetton-Jago normative decision-making model has served as a tool to help managers choose appropriate degrees of subordinate participation for effective decision-making given varying decision-making contexts. But does the model recommend participatory mechanisms that would actually benefit environmental management? This study empirically tests the improved Vroom-Jago version of the model in the public environmental decision-making context...
January 13, 2018: Environmental Management
https://www.readbyqxmd.com/read/29332123/braf-nras-and-gnaq-mutations-in-conjunctival-melanocytic-nevi
#7
Jasmine H Francis, Hans E Grossniklaus, Larissa A Habib, Brian Marr, David H Abramson, Klaus J Busam
Purpose: To evaluate BRAF, NRAS, and GNAQ mutations in surgical specimens of common and blue conjunctival melanocytic nevi. Methods: Surgical specimens from 25 conjunctival melanocytic nevi (23 common and 2 blue) of 25 patients were evaluated. All common nevi were analyzed immunohistochemically for the expression of BRAF V600E or NRAS Q61R. One lesion with negative immunoreactivity and for all blue nevi, a hybridization capture-based next-generation sequencing method was employed for mutation analysis...
January 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29332087/adaptive-brain-stimulation-for-movement-disorders
#8
Martijn Beudel, Hayriye Cagnan, Simon Little
Deep brain stimulation (DBS) has markedly changed how we treat movement disorders including Parkinson's disease (PD), dystonia, and essential tremor (ET). However, despite its demonstrable clinical benefit, DBS is often limited by side effects and partial efficacy. These limitations may be due in part to the fact that DBS interferes with both pathological and physiological neural activities. DBS could, therefore, be potentially improved were it applied selectively and only at times of enhanced pathological activity...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332083/deep-brain-stimulation-interventional-and-intraoperative-mri-approaches
#9
Paul S Larson, Philip A Starr, Alastair J Martin
Interventional and intraoperative MRI approaches to deep brain stimulator implantation are relatively new, and in their purest form represent a distinct departure from traditional stereotactic techniques. They employ a novel means of stereotaxis based on regions of interest in the MR space and simple geometric principles, which eliminate the need for a stereotactic frame. This approach is appropriate for targets that are MR visible, and for whom the local anatomy and function are well characterized. It may also be appropriate for targets that do not have a well-described physiologic signature and for which clinical response to macrostimulation does not play a critical role...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29332025/prolegomena-to-a-true-integrative-medical-paradigm
#10
Babak Daneshfard, Mohammad Reza Sanaye, Majid Nimrouzi
When a paradigm starts to show signs of failure to cope with significant questions in any basic/applied branch of human knowledge, there come on the scene those who have perused the related literature enough to either answer those major questions according to the established paradigm or proffer a (wholly) new way of looking at things. In the latter case, the history of science tells us, a paradigm shift takes place. Modern medicine cannot be proven to be totally disconnected from its traditional roots. Where traditional medicine came to give its place to present-day conventional medicine, a number of humanistic aspects of healing, in addition to some axioms of old wisdom, were actually lost...
January 15, 2018: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/29331970/is-there-a-social-gradient-of-sarcopenia-a-meta-analysis-and-systematic-review-protocol
#11
Darci Green, Gustavo Duque, Nick Fredman, Aoun Rizvi, Sharon Lee Brennan-Olsen
INTRODUCTION: Sarcopenia (or loss of muscle mass and function) is a relatively new area within the field of musculoskeletal research and medicine. Investigating whether there is a social gradient, including occupation type and income level, of sarcopenia, as observed for other diseases, will contribute significantly to the limited evidence base for this disease. This new information may inform the prevention and management of sarcopenia and widen the evidence base to support existing and future health campaigns...
January 13, 2018: BMJ Open
https://www.readbyqxmd.com/read/29331938/generation-of-a-human-induced-pluripotent-stem-cell-line-csc-40-from-a-parkinson-s-disease-patient-with-a-pink1-p-q456x-mutation
#12
Kaspar Russ, Ana Marote, Ekaterina Savchenko, Anna Collin, Stefano Goldwurm, Yuriy Pomeshchik, Laurent Roybon
Parkinson's disease (PD) is a neurodegenerative disease with unknown etiology. Here we show the generation of an induced pluripotent stem cell (iPSC) line, named CSC-40, from dermal fibroblasts obtained from a 59-year-old male patient with a homozygous p.Q456X mutation in the PTEN-induced putative kinase 1 (PINK/PARK6) gene and a confirmed diagnosis of PD, which could be used to model familial PD. A non-integrating Sendai virus-based delivery of the reprogramming factors OCT3/4, SOX2, c-MYC and KLF4 was employed...
January 4, 2018: Stem Cell Research
https://www.readbyqxmd.com/read/29331912/elucidating-the-impacts-of-initial-supersaturation-and-seed-crystal-loading-on-struvite-precipitation-kinetics-fines-production-and-crystal-growth
#13
Shantanu Agrawal, Jeremy S Guest, Roland D Cusick
To reduce intra-plant nutrient cycling, and recover phosphorus (P) fertilizers from nutrient-rich sidestreams, wastewater utilities increasingly elect to employ struvite precipitation processes without a clear understanding of the inherent tradeoffs associated with specific design and operating decisions. Specifically, the impact of reactor conditions on struvite crystallization rate, and distribution between formation of fines particles and secondary growth onto large diameter seed crystals represent critical knowledge gaps limiting the predictive capabilities of existing process models...
January 4, 2018: Water Research
https://www.readbyqxmd.com/read/29331907/applying-ultraviolet-persulfate-uv-ps-pre-oxidation-for-controlling-ultrafiltration-membrane-fouling-by-natural-organic-matter-nom-in-surface-water
#14
Jiayu Tian, Cuiwei Wu, Huarong Yu, Shanshan Gao, Guibai Li, Fuyi Cui, Fangshu Qu
Membrane fouling is a recognized obstacle for the application of ultrafiltration (UF) for drinking water treatment. In this study, ultraviolet/persulfate (UV/PS) oxidation was employed as a pretreatment to control membrane fouling caused by natural organic matter (NOM) in surface water. The effects of UV/PS pretreatment on amounts and characteristics of NOM were investigated in terms of dissolved organic carbon, fluorescent spectrum, molecular weight distribution and hydrophobicity. UF membrane fouling during filtration of raw and pre-oxidized water was compared with transmembrane pressure development, and the fouled membranes were further characterized using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR)...
January 5, 2018: Water Research
https://www.readbyqxmd.com/read/29331898/coadsorption-and-subsequent-redox-conversion-behaviors-of-as-iii-and-cr-vi-on-al-containing-ferrihydrite
#15
Zecong Ding, Fenglian Fu, Dionysios D Dionysiou, Bing Tang
Naturally occurring ferrihydrite often contains various impurities, and Al is one of the most prominent impurities. However, little is known about how these impurities impact the physical and chemical properties of ferrihydrite with respect to metal(loid) adsorption. In this study, a series of Al-containing ferrihydrites were synthesized and exposed to a mixed solution containing As(III) and Cr(VI). The results showed that the two contaminants can be quickly adsorbed onto the surface of Al-containing ferrihydrite under acidic and neutral conditions...
January 11, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29331822/synthesis-of-uio-66-oh-zirconium-metal-organic-framework-and-its-application-for-selective-extraction-and-trace-determination-of-thorium-in-water-samples-by-spectrophotometry
#16
Zahra Safaei Moghaddam, Massoud Kaykhaii, Mostafa Khajeh, Ali Reza Oveisi
In this study, a zirconium-based metal-organic framework (Zr-MOF), named UiO-66-OH, was synthesized by the solvo-thermal method and characterized by Fourier transform-infrared spectroscopy (FTIR), powder X-ray diffraction (PXRD), and scanning electron microscopy (SEM). This Zr-MOF was then employed as a sorbent for selective extraction and preconcentration of thorium ions after their complexation with 2‑(2,4‑dihydroxyphenyl)‑3,5,7‑trihydroxychromen‑4‑one (morin) from environmental water samples prior to its spectrophotometrical determination...
January 5, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29331818/the-effect-of-cao-sio2-molar-ratio-of-cao-al2o3-sio2-glasses-on-their-structure-and-reactivity-in-alkali-activated-system
#17
Sylwia Kucharczyk, Maciej Sitarz, Maciej Zajac, Jan Deja
The influence of CaO/SiO2 molar ratio of calcium aluminosilicate glasses on resulting structure and reactivity was investigated. Chemical compositions of glasses were chosen to mimic the composition of the fly ash and slag amorphous phase. Understanding the reactivity of these materials is of high importance allowing further development of the composite cements to limit the environmental footprint of cement industry. Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy were employed to examine the structure of glasses...
January 5, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29331798/engaging-students-in-a-community-of-learning-renegotiating-the-learning-environment
#18
Karen A Theobald, Carol A Windsor, Elizabeth M Forster
Promoting student engagement in a student led environment can be challenging. This article reports on the process of design, implementation and evaluation of a student led learning approach in a small group tutorial environment in a three year Bachelor of Nursing program at an Australian university. The research employed three phases of data collection. The first phase explored student perceptions of learning and engagement in tutorials. The results informed the development of a web based learning resource...
December 27, 2017: Nurse Education in Practice
https://www.readbyqxmd.com/read/29331789/anticonvulsant-activities-of-%C3%AE-asaronol-e-3-hydroxyasarone-an-active-constituent-derived-from-%C3%AE-asarone
#19
Xirui He, Yajun Bai, Min Zeng, Zefeng Zhao, Qiang Zhang, Ning Xu, Fanggang Qin, Xiaoyang Wei, Meimei Zhao, Ni Wu, Zehua Li, Yajun Zhang, Tai-Ping Fan, Xiaohui Zheng
BACKGROUND: Epilepsy is one of chronic neurological disorders that affects 0.5-1.0% of the world's population during their lifetime. There is a still significant need to develop novel anticonvulsant drugs that possess superior efficacy, broad spectrum of activities and good safety profile. METHODS: α-Asaronol and two current antiseizure drugs (α-asarone and carbamazepine (CBZ)) were assessed by in vivo anticonvulsant screening with the three most employed standard animal seizure models, including maximal electroshock seizure (MES), subcutaneous injection-pentylenetetrazole (PTZ)-induced seizures and 3-mercaptopropionic acid (3-MP)-induced seizures in mice...
August 31, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29331746/canadian-neurosurgery-educators-views-on-stereotactic-radiosurgery-in-residency-training
#20
Nardin Samuel, Justine Philteos, Naif M Alotaibi, Christopher Ahuja, Alireza Mansouri, Abhaya V Kulkarni
OBJECTIVE: Despite the increasing prominence of stereotactic radiosurgery (SRS) in treating intracranial and spinal pathologies, there is currently a dearth of exposure to this modality in neurosurgical residency. To address this gap, the aim of this study is to assess neurosurgery educators' views regarding the current state of SRS exposure, and to identify potential approaches to improve residency education in this domain. METHODS: Qualitative thematic analysis and constructivist grounded theory methodology were employed...
January 10, 2018: World Neurosurgery
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