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https://www.readbyqxmd.com/read/29335219/thermal-removal-of-arsenic-from-copper-concentrates-three-dimensional-isothermal-predominance-diagrams-for-the-cu-as-s-o-system
#1
M Sadegh Safarzadeh, Stanley M Howard
The three-dimensional predominance volume diagrams (PVDs) for the system Cu-As-S-O were constructed at 900 K using [Formula: see text] as independent coordinates. The constant total pressure surface was used to identify the equilibrium phases that are stable at 0.25 atm total pressure. The isobaric surface superimposed on the predominance diagram provides useful insights into the roasting of complex copper sulfosalts such as enargite (Cu3AsS4) and tennantite (Cu12As4S13). There are nine interior invariant points each with four associated condensed phases at 900 K...
January 5, 2018: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29334228/use-of-ect-in-the-presence-of-acute-bilateral-posterior-vitreous-detachmanet
#2
Tesema Taye, Letitia Dobranici, Mark Fisher, Sarah Cullum
OBJECTIVES: We describe a case of acute bilateral posterior vitreous detachment (PVD) in a 71-year-old female, which developed during a course of electroconvulsive therapy (ECT) for treatment-resistant depression. The risks and benefits of continuing ECT were assessed and the patient completed the full course of 16 ECT treatments without further ophthalmic complications. CONCLUSIONS: As the incidence of PVD increases with age, and ECT is used more frequently in elderly people with depression, we recommend paying attention to ophthalmic symptoms as part of the routine clinical monitoring of ECT side effects...
January 1, 2018: Australasian Psychiatry: Bulletin of Royal Australian and New Zealand College of Psychiatrists
https://www.readbyqxmd.com/read/29329516/bilateral-giant-retinal-tears-in-osteogenesis-imperfecta
#3
Paolo Scollo, Martin Paul Snead, Allan James Richards, Rebecca Pollitt, Catherine DeVile
BACKGROUND: Osteogenesis imperfecta (OI) is a rare primarily autosomal dominant condition in which the connective tissues of bones, ligaments and sclerae do not form properly. Typically, mutations in COL1A1 and COL1A2 genes lead to the defective formation or quantity of type I collagen, the principle matrix in these tissues. Molecular genetic studies have now elucidated multiple genetic subtypes of the disorder but little literature exists on the risk of retinal tears and detachments in OI...
January 12, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/29305775/when-self-worth-is-tied-to-one-s-sexual-and-romantic-relationship-associations-with-well-being-in-couples-coping-with-genito-pelvic-pain
#4
Maria Glowacka, Sophie Bergeron, Justin Dubé, Natalie O Rosen
Contingent self-worth (CSW; the pursuit of self-esteem via a particular domain in one's life) impacts well-being based on one's perceived success or failure in the contingent domain. In a community sample, individuals with sexual problems reported greater sexual CSW-self-worth dependent on maintaining a sexual relationship-than those without problems. Couples coping with provoked vestibulodynia (PVD), a genito-pelvic pain condition, perceive failures in their sexual relationship, which could be associated with more pain and poorer well-being...
January 5, 2018: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/29302939/transcatheter-aortic-valve-implantation-in-high-risk-inoperable-patients-repositionable-versus-non-repositionable-self-expanding-valve
#5
Verena Veulemans, Dagmar B Sötemann, Laura Kleinebrecht, Stefanie Keymel, Christian Jung, Tobias Zeus, Malte Kelm, Ralf Westenfeld
BACKGROUND: Although next-generation cardiac prostheses have shown favorable results in transcatheter aortic valve implantation (TAVI), these have mostly been documented in intermediate-risk patients. Whether this could be translated to high-risk patients is not known. Hence, the safety and clinical performance of the new, repositionable CoreValve Evolut R-System (ERS) was evaluated by comparison with a non-repositionable CoreValve-System (CVS), in 96 high-risk/inoperable (HRI) patients...
July 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29231185/quantitative-evaluation-of-graded-hindlimb-ischemia-based-on-pharmacokinetic-modelling-and-hemodynamic-analysis-of-indocyanine-green
#6
Wenjuan Cai, Yongshuai Li, Fei Liu, Jianwen Luo
OBJECTIVE: Accurate evaluation of the degree of hindlimb ischemia is challenging but essential for the diagnosis and treatment of peripheral vascular insufficiency. The aim of the study is to apply a multiparametric method for the quantitative estimation of mouse models with different degrees of hindlimb ischemia based on a dynamic fluorescence imaging-based strategy. APPROACH: An adjustable hydraulic occluder was placed around the thigh root of one hindlimb to induce six different degrees of hindlimb ischemia...
December 12, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/29224860/estrous-detection-intensity-and-accuracy-and-optimal-timing-of-insemination-with-automated-activity-monitors-for-dairy-cows
#7
C N S LeRoy, J S Walton, S J LeBlanc
The objectives of this observational study were to assess the ability of automated activity monitoring (AAM) to detect estrus for first insemination, the accuracy of detection, and the optimum interval from the estrus alert from the AAM system to insemination. Four commercial farms using 1 of 2 commercial AAM systems were studied over 1 yr. Cows were inseminated between 55 and 80 d in milk (DIM) based on AAM only, then by a combination of AAM and timed artificial insemination (AI). Blood progesterone was measured in 1,014 cows at wk 5, 7, and 9 postpartum; purulent vaginal discharge (PVD) was assessed at wk 5; and lameness and BCS at wk 7...
December 7, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29218323/sap97-binding-partner-cript-promotes-dendrite-growth-in-vitro-and-in-vivo
#8
Lei Zhang, Angela Marie Jablonski, Jelena Mojsilovic-Petrovic, Hua Ding, Steven Seeholzer, Ian Paterson Newton, Inke Nathke, Rachael Neve, JinBin Zhai, Yuan Shang, Mingjie Zhang, Robert Gordon Kalb
The dendritic tree is a key determinant of neuronal information processing. In the motor system, the dendritic tree of spinal cord neurons undergoes dramatic remodeling in an activity-dependent manner during early postnatal life. This leads to the proper segmental spinal cord connectivity that subserves normal locomotor behavior. One molecular system driving the establishment of dendrite architecture of mammalian motor neurons relies on AMPA receptors (AMPA-Rs) assembled with the GluA1 subunit, and this occurs in an NMDA receptor (NMDA-R)-independent manner...
November 2017: ENeuro
https://www.readbyqxmd.com/read/29214073/assessment-of-ocriplasmin-effects-on-the-vitreoretinal-compartment-in-porcine-and-human-model-systems
#9
Bart Jonckx, Michael Porcu, Aurelie Candi, Isabelle Etienne, Philippe Barbeaux, Jean H M Feyen
Ocriplasmin (Jetrea®) is a recombinant protease used to treat vitreomacular traction. To gain insight into vitreoretinal observations reported after ocriplasmin treatment, we have developed an in vivo porcine ocriplasmin-induced posterior vitreous detachment (PVD) model in which we investigated vitreoretinal tissues by optical coherence tomography, histology, and cytokine profiling. Eight weeks postinjection, ocriplasmin yielded PVD in 82% of eyes. Subretinal fluid (85%) and vitreous hyperreflective spots (45%) were resolved by week 3...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29209436/the-potential-relationship-between-flammer-and-sj%C3%A3-gren-syndromes-the-chime-of-dysfunction
#10
REVIEW
Babak Baban, Olga Golubnitschaja
Flammer syndrome (FS) is a term to blanket a cluster of vascular and nonvascular signs and symptoms linked to primary vascular dysregulation (PVD), increased sensitivity to various stimuli (stress, drugs, etc.) and altered sense regulation such as pain, smell and thirst perception. On one hand, disruption of blood barrier and homeostasis of the body are the main targets of vascular irregularity. Inflammation and immune disorders including autoimmunity are considered as a consequence of the abnormal vascular regulation processes...
December 2017: EPMA Journal
https://www.readbyqxmd.com/read/29203808/association-between-smoking-and-the-peripheral-vestibular-disorder-a-retrospective-cohort-study
#11
Masaoki Wada, Taro Takeshima, Yosikazu Nakamura, Shoichiro Nagasaka, Toyomi Kamesaki, Eiji Kajii, Kazuhiko Kotani
Common inner ear diseases include peripheral vestibular disorder (PVD) and hearing impairment. The association between smoking and peripheral vestibular disorder (PVD) is unclear. We examined associations between smoking and new PVD events. In this retrospective study, we consecutively enrolled 393 participants aged ≥20 years [mean age 65.3 years; males 133 (33.8%)] treated for hypertension, dyslipidaemia, or diabetes mellitus at a primary care clinic between November 2011 and March 2013. Participants were categorized as ever-smokers (including current and past -smokers; divided per <30 and ≥30 pack-years), and never-smokers...
December 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29202837/predictive-power-of-splenic-thickness-for-post-hepatectomy-liver-failure-in-hbv-associated-hepatocellular-carcinoma-patients
#12
Xiang Chen, Heng Zou, Li Xiong, Sheng-Fu Huang, Xiong-Ying Miao, Yu Wen
BACKGROUND: The purpose of this case series is to investigate the relationship between splenic thickness (ST) and postoperative outcomes after hepatic resection in hepatitis B virus (HBV)-associated hepatocellular carcinoma (HCC) patients. METHODS: The clinical data of 320 patients with HBV-associated HCC who had undergone liver resection were retrospectively analyzed. The value of ST in predicting postoperative outcomes was evaluated. RESULTS: A total of 320 patients were enrolled in the study...
December 4, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29199084/ethnicity-influences-cardiovascular-outcomes-and-complications-in-patients-with-type-2-diabetes
#13
S Kou, J Y Cao, S Yeo, D J Holmes-Walker, S L Lau, J E Gunton
AIM: To determine whether cardiovascular outcomes in type 2 diabetes (T2D) differ according to ethnicity, and whether ethnicity influences the effect of gender on these outcomes in Caucasians, East-Southeast-Asians, Middle-Easterners, South-Asians and Pacific-Islanders. METHODS: We compared demographics, HbA1c, lipid profile, renal function markers, and prevalence of macrovascular and microvascular complications between ethnic groups. Cross-sectional data was prospectively collected from 204 consecutive patients at Westmead Hospital's T2D clinic from April-October 2015...
November 6, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/29191240/myopia-as-a-risk-factor-for-subsequent-retinal-tears-in-the-course-of-a-symptomatic-posterior-vitreous-detachment
#14
Nicolas Crim, Evangelina Esposito, Rodolfo Monti, Leandro J Correa, Horacio M Serra, Julio A Urrets-Zavalia
BACKGROUND: Retinal tears complicating the course of a posterior vitreous detachment (PVD) may be unique or multiple, and when multiple they may occur simultaneously or subsequently at different moments in the evolution of a PVD. The purpose of our study was to analyze the prevalence of subsequent retinal tears (SRT) in patients with a PVD, and to identify possible risk factors for SRT. METHODS: One hundred and seventy six eyes in 165 consecutive patients that presented one or more retinal tears in the evolution of a symptomatic PVD, with a minimum follow-up of 12 months, were retrospectively evaluated...
December 1, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29142342/prevalence-of-subclinical-peripheral-vascular-disease-in-obese-egyptian-patients
#15
Jehan Ahmed Younes, Nahla Dessoki El-Sayed, Ayman Ismail Kamel
Objective: To detect subclinical peripheral vascular disease in obese Egyptian patients and establish relations between obesity, metabolic risk factors, and PVD. Methods: This was a prospective case-control study including 100 obese patients (BMI >30) (G1). In addition, 100 age and sex matched non-obese healthy subjects as a control group (G2). Both groups were subjected to duplex ultrasound, Radionuclide muscle scan. Angiography was done for 17 patients. Results: The image pattern of 99mTc-MIBI muscles uptake was studied and perfusion reserve (PR%) was calculated in (G1) and (G2)...
October 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/29137142/characterization-and-antibiofouling-performance-investigation-of-hydrophobic-silver-nanocomposite-membranes-a-comparative-study
#16
Maryam Amouamouha, Gagik Badalians Gholikandi
Biofouling is one of the drawbacks restricting the industrial applications of membranes. In this study, different thicknesses of silver nanoparticles with proper adhesion were deposited on poly(vinylidenefluoride) (PVDF) and polyethersulfone (PES) surfaces by physical vapor deposition (PVD). The crystalline and structural properties of modified and pure membranes were investigated by carrying out X-ray diffraction (XRD) and attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR). Scanning electron microscope (SEM) and atomic force microscopy (AFM) analyses were employed to examine the surface morphology and the bacteria anti-adhesion property of the membranes...
November 12, 2017: Membranes
https://www.readbyqxmd.com/read/29130626/age-related-macular-degeneration-using-morphological-predictors-to-modify-current-treatment-protocols
#17
REVIEW
Mohammed Ashraf, Ahmed Souka, Ron A Adelman
To assess predictors of treatment response in neovascular age-related macular degeneration (AMD) in an attempt to develop a patient-centric treatment algorithm. We conducted a systematic search using PubMed, EMBASE and Web of Science for prognostic indicators/predictive factors with the key words: 'age related macular degeneration', 'neovascular AMD', 'choroidal neovascular membrane (CNV)', 'anti-vascular endothelial growth factor (anti-VEGF)', 'aflibercept', 'ranibizumab', 'bevacizumab', 'randomized clinical trials', 'post-hoc', 'prognostic', 'predictive', 'response' 'injection frequency, 'treat and extend (TAE), 'pro re nata (PRN)', 'bi-monthly' and 'quarterly'...
November 11, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29127236/structural-and-functional-changes-of-the-pulmonary-vasculature-after-hypoxia-exposure-in-the-neonatal-period-a-new-swine-model-of-pulmonary-vascular-disease
#18
Daphne P M de Wijs-Meijler, Richard W B van Duin, Dirk J Duncker, Urs Scherrer, Claudio Sartori, Irwin K M Reiss, Daphne Merkus
Pulmonary vascular disease (PVD) represents an underestimated and increasing clinical burden in the neonatal period, but also later in life, when exercise-tolerance is decreased. Animal models performing long-term follow-up after a perinatal insult are lacking. This study aimed to develop and characterize a neonatal swine model with hypoxia-induced PVD, during long-term follow-up after re-exposure to normoxia, and to investigate the exercise response in this model. Piglets were exposed to a normoxic (N=10) or hypoxic environment (N=9) for four weeks...
November 10, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29122418/clinical-features-of-psychogenic-voice-disorder-and-the-efficiency-of-voice-therapy-and-psychological-evaluation
#19
Zahide Çiler Tezcaner, Muhammed Fatih Gökmen, Sibel Yıldırım, Gürsel Dursun
OBJECTIVES: The aim of this study was to define the clinical features of psychogenic voice disorder (PVD) and explore the treatment efficiency of voice therapy and psychological evaluation. METHOD: Fifty-eight patients who received treatment following the PVD diagnosis and had no organic or other functional voice disorders were assessed retrospectively based on laryngoscopic examinations and subjective and objective assessments. Epidemiological characteristics, accompanying organic and psychological disorders, preferred methods of treatment, and previous treatment outcomes were examined for each patient...
November 6, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/29111185/morphological-characteristics-associated-with-rupture-risk-of-multiple-intracranial-aneurysms
#20
Guang-Xian Wang, Lan-Lan Liu, Li Wen, Yun-Xing Cao, Yu-Chun Pei, Dong Zhang
OBJECTIVE: To identify the morphological parameters that are related to intracranial aneurysms (IAs) rupture using a case-control model. METHODS: A total of 107 patients with multiple IAs and aneurysmal subarachnoid hemorrhage between August 2011 and February 2017 were enrolled in this study. Characteristics of IAs location, shape, neck width, perpendicular height, depth, maximum size, flow angle, parent vessel diameter (PVD), aspect ratio (AR) and size ratio (SR) were evaluated using CT angiography...
October 2017: Asian Pacific Journal of Tropical Medicine
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