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https://www.readbyqxmd.com/read/28340416/nonradical-oxidation-from-electrochemical-activation-of-peroxydisulfate-at-ti-pt-anode-efficiency-mechanism-and-influencing-factors
#1
Haoran Song, Linxia Yan, Jun Ma, Jin Jiang, Guangqiang Cai, Wenjuan Zhang, Zhongxiang Zhang, Jiaming Zhang, Tao Yang
Electrochemical activation of peroxydisulfate (PDS) at Ti/Pt anode was systematically investigated for the first time in this work. The synergistic effect produced from the combination of electrolysis and the addition of PDS demonstrates that PDS can be activated at Ti/Pt anode. The selective oxidation towards carbamazepine (CBZ), sulfamethoxazole (SMX), propranolol (PPL), benzoic acid (BA) rather than atrazine (ATZ) and nitrobenzene (NB) was observed in electrochemical activation of PDS process. Moreover, addition of excess methanol or tert-butanol had negligible impact on CBZ (model compound) degradation, demonstrating that neither sulfate radical (SO4(-)) nor hydroxyl radical (HO) was produced in electrochemical activation of PDS process...
March 21, 2017: Water Research
https://www.readbyqxmd.com/read/28338321/thiol-reactive-star-polymers-display-enhanced-association-with-distinct-human-blood-components
#2
Joshua Julian Glass, Yang Li, Robert De Rose, Angus P R Johnston, Ewa I Czuba, Song Yang Khor, John F Quinn, Michael R Whittaker, Thomas P Davis, Stephen J Kent
Directing nanoparticles to specific cell types using non-antibody based methods is of increasing interest. Thiol-reactive nanoparticles can enhance the efficiency of cargo delivery into specific cells through interactions with cell surface proteins. However, studies to date using this technique have been largely limited to immortalized cell lines or rodents and the utility of this technology on primary human cells is unknown. Herein, we used RAFT polymerization to prepare pyridyl disulphide (PDS)-functionalized star polymers with a methoxy-poly(ethylene glycol) brush corona and a fluorescently-labelled crosslinked core using an arm-first method...
March 24, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28336096/multigenerational-effects-of-two-glucocorticoids-prednisolone-and-dexamethasone-on-life-history-parameters-of-crustacean-ceriodaphnia-dubia-cladocera
#3
Navdeep Bal, Anupama Kumar, Jun Du, Dayanthi Nugegoda
Synthetic glucocorticoids (GCs) such as dexamethasone (DEX) and prednisolone (PDS) have been used since the 1940s to cure inflammatory and auto-immune disorders. Their use has been linked to a host of deleterious effects in aquatic ecosystems such as osteoporosis in vertebrates, developmental impairments in molluscs and reduced fecundity and growth in cladocerans. Apart from these handful of studies, the effects of GCs on aquatic biota are largely unknown. The present study is a first of its kind aiming to assess the multi-generational exposure effects of DEX and PDS on the life history parameters of Ceriodaphnia dubia (C...
March 20, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28335530/risk-of-suicide-and-dysfunctional-patterns-of-personality-among-bereaved-substance-users
#4
Laura Masferrer, Beatriz Caparrós
Background: Research has shown that suicide is a phenomenon highly present among the drug dependent population. Different studies have demonstrated an upraised level of comorbidity between personality disorders (PD) and substance use disorders (SUD). This study aimed to describe which PDs are more frequent among those patients with a risk of suicide. Methods: The study was based on a consecutive non-probabilistic convenience sample of 196 bereaved patients attended to in a Public Addiction Center in Girona (Spain)...
March 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28335013/lifetime-and-1-year-prevalence-of-homelessness-in-the-us-population-results-from-the-national-epidemiologic-survey-on-alcohol-and-related-conditions-iii
#5
Jack Tsai
Background: Homelessness remains a major public health problem in the USA but there have been few recent epidemiological studies in the general population. Methods: Using data from structured interviews with a nationally representative sample of 36 299 US adults from the 2012-13 Wave 3 of the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC-III), this study examined the lifetime and 1-year prevalence of homelessness, and its correlates. Results: Lifetime and 1-year prevalence of homelessness in the US population was found to be 4...
March 18, 2017: Journal of Public Health
https://www.readbyqxmd.com/read/28334662/the-association-between-personality-disorders-with-alcohol-use-and-misuse-a-population-based-twin-study
#6
E C Long, S H Aggen, M C Neale, G P Knudsen, R F Krueger, S C South, N Czajkowski, R Nesvåg, E Ystrom, F A Torvik, K S Kendler, N A Gillespie, T Reichborn-Kjennerud
BACKGROUND: A clearer understanding of the etiological overlap between DSM-IV personality disorders (PDs) and alcohol use (AU) and alcohol use disorder (AUD) is needed. To our knowledge, no study has modeled the association between all 10 DSM-IV PDs and lifetime AU and AUD. The aim of the present study is to identify which PDs are most strongly associated with the phenotypic, genetic, and environmental risks of lifetime AU and AUD, and to determine if these associations are stable across time...
March 7, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28333253/resident-and-program-director-perceptions-of-aesthetic-training-in-plastic-surgery-residency-an-update
#7
Ahmed M Hashem, Joshua T Waltzman, Gehaan F D'Souza, Cagri Cakmakoglu, Kayshap Komarraju Tadisina, Jeffrey M Kenkel, James E Zins
Background: This is the third survey exploring the quality of cosmetic training in plastic surgery residency. We focused on determining: (1) the applied modalities and extent of resident exposure; and (2) resident confidence in performing variable cosmetic procedures. Objectives: To analyze trends in resident exposure and confidence in aesthetic plastic surgery procedures from the standpoint of program directors (PDs) and residents. Methods: The survey was developed and e-mailed to 424 residents enrolled in the ASAPS Residents Program and 95 PDs...
March 3, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28331799/commonalities-and-differences-in-the-neural-substrates-of-threat-predictability-in-panic-disorder-and-specific-phobia
#8
Anna Luisa Klahn, Isabelle A Klinkenberg, Ulrike Lueken, Swantje Notzon, Volker Arolt, Christo Pantev, Peter Zwanzger, Markus Junghoefer
Different degrees of threat predictability are thought to induce either phasic fear or sustained anxiety. Maladaptive, sustained anxious apprehension is thought to result in overgeneralization of anxiety and thereby to contribute to the development of anxiety disorders. Therefore, differences in threat predictability have been associated with pathological states of anxiety with specific phobia (SP) representing phasic fear as heightened response to predictable threat, while panic disorder (PD) is characterized by sustained anxiety (unpredictable threat) and, as a consequence, overgeneralization of fear...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28330628/analysis-of-the-dura-involvement-in-cholesteatoma-surgery
#9
David Schwarz, Antoniu-Oreste Gostian, Sami Shabli, Philipp Wolber, Karl Bernd Hüttenbrink, Andreas Anagiotos
OBJECTIVE: The involvement of the dura is a rare yet potentially life-threatening complication during cholesteatoma surgery. Thus, the knowledge about treatment and consequences of this issue is of great importance to every ear surgeon. METHODS: This retrospective study analyzed the dura involvement with regard to the type of defect, reconstruction method used, and the post-operative complications of 1291 pediatric and adult cholesteatoma surgeries performed at an academic tertiary care center over a twelve-year period...
March 19, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28329680/major-roles-for-pyrimidine-dimers-nucleotide-excision-repair-and-atr-in-the-alternative-splicing-response-to-uv-irradiation
#10
Manuel J Muñoz, Nicolás Nieto Moreno, Luciana E Giono, Adrián E Cambindo Botto, Gwendal Dujardin, Giulia Bastianello, Stefania Lavore, Antonio Torres-Méndez, Carlos F M Menck, Benjamin J Blencowe, Manuel Irimia, Marco Foiani, Alberto R Kornblihtt
We have previously found that UV irradiation promotes RNA polymerase II (RNAPII) hyperphosphorylation and subsequent changes in alternative splicing (AS). We show now that UV-induced DNA damage is not only necessary but sufficient to trigger the AS response and that photolyase-mediated removal of the most abundant class of pyrimidine dimers (PDs) abrogates the global response to UV. We demonstrate that, in keratinocytes, RNAPII is the target, but not a sensor, of the signaling cascade initiated by PDs. The UV effect is enhanced by inhibition of gap-filling DNA synthesis, the last step in the nucleotide excision repair pathway (NER), and reduced by the absence of XPE, the main NER sensor of PDs...
March 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/28328580/factors-predicting-use-of-neoadjuvant-chemotherapy-compared-with-primary-debulking-surgery-in-advanced-stage-ovarian-cancer-a-national-cancer-database-study
#11
Gary S Leiserowitz, Jeff F Lin, Ana I Tergas, William A Cliby, Robert E Bristow
OBJECTIVES: We performed a patterns-of-care study to characterize the types of patients with epithelial ovarian cancer (EOC) who received neoadjuvant chemotherapy (NACT) versus primary debulking surgery (PDS) using the National Cancer Database (NCDB). METHODS: We identified patients with stages IIIC and IV EOC in the NCDB diagnosed from 2003 to 2011. Patients who received chemotherapy (CT) prior to surgery were classified as receiving NACT; if surgery preceded CT, then it was classified as PDS...
March 22, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28326425/bilateral-pelvic-discontinuity-a-unique-condition-characterized-by%C3%A2-high-failure-rates-of-current-treatment
#12
John R Martin, Ian Barrett, Rafael J Sierra, David G Lewallen, Daniel J Berry
BACKGROUND: Bilateral pelvic discontinuity is characterized by complete dissociation of the superior and inferior pelvis secondary to bone loss or fracture. The end result is a freely mobile inferior pelvis at the level of each discontinuity which presents a significant reconstruction challenge. This clinical entity has not been described previously, and the results of surgical treatment are not known. METHODS: We retrospectively reviewed all identified cases of pelvic discontinuity (PD) treated with revision THA at one institution...
December 2016: Arthroplasty Today
https://www.readbyqxmd.com/read/28326235/study-of-the-surface-properties-of-zno-nanocolumns-used-for-thin-film-solar-cells
#13
Neda Neykova, Jiri Stuchlik, Karel Hruska, Ales Poruba, Zdenek Remes, Ognen Pop-Georgievski
Densely packed ZnO nanocolumns (NCs), perpendicularly oriented to the fused-silica substrates were directly grown under hydrothermal conditions at 90 °C, with a growth rate of around 0.2 μm/h. The morphology of the nanostructures was visualized and analyzed by scanning electron microscopy (SEM). The surface properties of ZnO NCs and the binding state of present elements were investigated before and after different plasma treatments, typically used in plasma-enhanced CVD solar cell deposition processes, by X-ray photoelectron spectroscopy (XPS)...
2017: Beilstein Journal of Nanotechnology
https://www.readbyqxmd.com/read/28324050/transgender-health-in-endocrinology-current-status-of-endocrinology-fellowship-programs-and-practicing-clinicians
#14
Caroline Davidge-Pitts, Todd B Nippoldt, Ann Danoff, Lauren Radziejewski, Neena Natt
Context: The transgender population continues to face challenges in accessing appropriate health care. Adequate training of endocrinologists in this area is a priority. Objectives: 1) Assess the status of transgender healthcare education in United States (US) endocrinology fellowship training programs, and 2) assess knowledge and practice of transgender health amongst practicing US endocrinologists. Design: Mayo Clinic and Endocrine Society developed and administered a web-based anonymous survey to 104 endocrinology fellowship program directors (PDs) and 6,992 US MD members of Endocrine Society...
January 10, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28321455/comorbid-psychopathology-and-everyday-functioning-in-a-brief-intervention-study-to-reduce-khat-use-among-somalis-living-in-kenya-description-of-baseline-multimorbidity-its-effects-of-intervention-and-its-moderation-effects-on-substance-use
#15
Marina Widmann, Bernice Apondi, Abednego Musau, Abdulkadir Hussein Warsame, Maimuna Isse, Victoria Mutiso, Clemens Veltrup, David Ndetei, Michael Odenwald
BACKGROUND AND AIMS: Migration and khat use were found to correlate with high rates of psychopathology. In this paper we aimed for assessing baseline multimorbidity and its interactions with a Brief Intervention. METHODS: In the RCT, 330 male Somali khat users were assigned to treatment conditions (khat use is a predominantly male habit). The ASSIST-linked BI for khat users was administered. Using the TLFB Calendar, the PHQ-9, a Somali short version of the PDS and parts from the CIDI, khat use and comorbidity was assessed...
March 20, 2017: Social Psychiatry and Psychiatric Epidemiology
https://www.readbyqxmd.com/read/28320256/internal-decompression-for-spinal-stenosis-idss-for-decompression-and-use-of-interlaminar-dynamic-device-coflextm-for-stabilization-in-the-surgical-management-of-degenerative-lumbar-canal-stenosis-with-or-without-mild-segmental-instability-our-initial-results
#16
Sumeet G Pawar, Arjun Dhar, Apurva Prasad, Satyashiva Munjal, P S Ramani
INTRODUCTION: Internal decompression of spinal stenosis (IDSS) and Posterior dynamic stabilization (PDS) form a bridge between decompression laminectomy alone and rigid fusion, by attempting to sustain beneficial effects of decompression and stabilization in an attempt to prevent bad effects of relentless degeneration. OBJECTIVE: To evaluate the clinical outcome in operated patient of posterior dynamic stabilization. DESIGN: Data were collected over 1 year in prospective, nonrandomized follow-up study using outcome scales...
March 21, 2017: Neurological Research
https://www.readbyqxmd.com/read/28319876/redefining-periodic-patterns-on-electroencephalograms-of-patients-with-sporadic-creutzfeldt-jakob-disease
#17
Jung-Won Shin, Byeongsoo Yim, Seung Hun Oh, Nam Keun Kim, Sang Kun Lee, Ok-Joon Kim
OBJECTIVE: We aimed to redefine various periodic patterns (PPs) observed on electroencephalography (EEG) in patients with sporadic Creutzfeldt-Jakob disease (sCJD) using the American Clinical Neurophysiology Society's (ACNS) Criteria. METHODS: We analyzed EEG data of 23 patients with sCJD were admitted to two university hospitals between August 2005 and September 2015. RESULTS: We classified PPs on EEG data into three types: irregular periodic discharges (PDs) with superimposed rhythmic activities, appearing at a median of 8weeks after onset (w...
February 5, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28319697/genetic-variants-of-the-kynurenine-3-monooxygenase-and-postpartum-depressive-symptoms-after-cesarean-section-in-chinese-women
#18
Sai-Ying Wang, Kai-Ming Duan, Xiao-Fang Tan, Ji-Ye Yin, Xiao-Yuan Mao, Wei Zheng, Chun-Yan Wang, Mi Yang, Cheng Peng, Hong-Hao Zhou, Zhao-Qian Liu
BACKGROUND: New conceptualizations of depression have emphasized the role of the kynurenine pathway (KP) in the pathogenesis of postpartum depressive symptoms (PDS). Kynurenine 3-monooxygenase (KMO) is a rate-limiting enzyme of the KP, where it catalyzes the conversion of kynurenine (KYN) to 3-hydroxykynurenine (3-HK). Previous work indicates that KMO is closely linked to the pathophysiology of depressive disorders. The purpose of this study is to investigate whether variations in the KMO gene affect PDS development after cesarean section...
March 10, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28319224/surface-photo-charge-effect-in-doped-zno-nanorods-for-high-performance-self-powered-ultraviolet-photodetectors
#19
Buddha Deka Boruah, Shanmukh Naidu Majji, Abha Misra
The unique photo-charge characteristics of chlorine-doped zinc oxide nanorods (Cl-ZnO NRs) are explored for the first time in ultraviolet (UV) photodetector (PD) that offers an outstanding self-powered photoresponse towards low UV illumination signals. A self-powered Cl-ZnO NRs PD exhibits superior photon detection speed of the order of a few ms with high sensitivity and photoelasticity. Therefore, the presented PD opens up a novel route to fabricate highly efficient self-powered PDs on a large scale without employing complex multilayer systems...
March 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28318468/understanding-adolescent-personality-pathology-from-growth-trajectories-of-childhood-oddity
#20
Barbara De Clercq, Lize Verbeke, Elien De Caluwé, Tom Vercruysse, Joeri Hofmans
Research on developmental trajectories of early maladaptive features for understanding later personality disorders (PDs) is increasingly recognized as an important study area. The course of early odd features is highly relevant in this regard, as only a few researchers have addressed childhood oddity in the context of emerging PDs. Using latent growth modeling, the current study explores growth parameters of odd features in a mixed sample of Flemish community and referred children (N = 485) across three measurement waves with 1-year time intervals...
March 20, 2017: Development and Psychopathology
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