118 research outputs found

    Slaughterhouse Wastewater Treatment by Combined Chemical Coagulation and Electrocoagulation Process

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    Slaughterhouse wastewater contains various and high amounts of organic matter (e.g., proteins, blood, fat and lard). In order to produce an effluent suitable for stream discharge, chemical coagulation and electrocoagulation techniques have been particularly explored at the laboratory pilot scale for organic compounds removal from slaughterhouse effluent. The purpose of this work was to investigate the feasibility of treating cattle-slaughterhouse wastewater by combined chemical coagulation and electrocoagulation process to achieve the required standards. The influence of the operating variables such as coagulant dose, electrical potential and reaction time on the removal efficiencies of major pollutants was determined. The rate of removal of pollutants linearly increased with increasing doses of PACl and applied voltage. COD and BOD5 removal of more than 99% was obtained by adding 100 mg/L PACl and applied voltage 40 V. The experiments demonstrated the effectiveness of chemical and electrochemical techniques for the treatment of slaughterhouse wastewaters. Consequently, combined processes are inferred to be superior to electrocoagulation alone for the removal of both organic and inorganic compounds from cattle-slaughterhouse wastewater

    The Compact Linear Collider (CLIC) - 2018 Summary Report

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    Measurement of ϒ production in pp collisions at √s = 2.76 TeV

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    The production of ϒ(1S), ϒ(2S) and ϒ(3S) mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of 3.3 pb−1 collected in proton–proton collisions at a centre-of-mass energy of √s = 2.76 TeV. The differential production cross-sections times dimuon branching fractions are measured as functions of the ϒ transverse momentum and rapidity, over the ranges pT < 15 GeV/c and 2.0 < y < 4.5. The total cross-sections in this kinematic region, assuming unpolarised production, are measured to be σ (pp → ϒ(1S)X) × B ϒ(1S)→μ+μ− = 1.111 ± 0.043 ± 0.044 nb, σ (pp → ϒ(2S)X) × B ϒ(2S)→μ+μ− = 0.264 ± 0.023 ± 0.011 nb, σ (pp → ϒ(3S)X) × B ϒ(3S)→μ+μ− = 0.159 ± 0.020 ± 0.007 nb, where the first uncertainty is statistical and the second systematic

    The Compact Linear Collider (CLIC) - 2018 Summary Report

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    The Compact Linear Collider (CLIC) is a TeV-scale high-luminosity linear e+ee^+e^- collider under development at CERN. Following the CLIC conceptual design published in 2012, this report provides an overview of the CLIC project, its current status, and future developments. It presents the CLIC physics potential and reports on design, technology, and implementation aspects of the accelerator and the detector. CLIC is foreseen to be built and operated in stages, at centre-of-mass energies of 380 GeV, 1.5 TeV and 3 TeV, respectively. CLIC uses a two-beam acceleration scheme, in which 12 GHz accelerating structures are powered via a high-current drive beam. For the first stage, an alternative with X-band klystron powering is also considered. CLIC accelerator optimisation, technical developments and system tests have resulted in an increased energy efficiency (power around 170 MW) for the 380 GeV stage, together with a reduced cost estimate at the level of 6 billion CHF. The detector concept has been refined using improved software tools. Significant progress has been made on detector technology developments for the tracking and calorimetry systems. A wide range of CLIC physics studies has been conducted, both through full detector simulations and parametric studies, together providing a broad overview of the CLIC physics potential. Each of the three energy stages adds cornerstones of the full CLIC physics programme, such as Higgs width and couplings, top-quark properties, Higgs self-coupling, direct searches, and many precision electroweak measurements. The interpretation of the combined results gives crucial and accurate insight into new physics, largely complementary to LHC and HL-LHC. The construction of the first CLIC energy stage could start by 2026. First beams would be available by 2035, marking the beginning of a broad CLIC physics programme spanning 25-30 years

    26th Annual Computational Neuroscience Meeting (CNS*2017): Part 3 - Meeting Abstracts - Antwerp, Belgium. 15–20 July 2017

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    This work was produced as part of the activities of FAPESP Research,\ud Disseminations and Innovation Center for Neuromathematics (grant\ud 2013/07699-0, S. Paulo Research Foundation). NLK is supported by a\ud FAPESP postdoctoral fellowship (grant 2016/03855-5). ACR is partially\ud supported by a CNPq fellowship (grant 306251/2014-0)

    Evaluation of the relation between ovarian reserve and cyst dimension in patients with endometrioma [Endometriomalı hastalarda kist çapı ile over rezervi arasındaki i·lişkinin degerlendirilmesi]

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    Objectives Endometriosis is a gynecologic disease which has high prevalence among infertile population. It has increasing importance particularly for the patients with determined endometrioma cyst when there is an infertility problem during the surgery. In this study, we aimed to evaluate the ovarian reserve with basal hormone values and clomiphene citrate challenge test in patients with endometrioma, to compare results with control group and to determine a possible relationship between the cyst diameter and the ovarian reserve in condition of getting significant results. Methods Thirty-five patients who had diagnosis of endometrioma were included in the study. As the control group, 35 patients with borderline male infertility and similar demographic characteristics were selected from Infertility Clinic of the same hospital. Results There was no significant distinction between mean age values of groups. Mean cyst diameter was 33.65 ± 17.08 mm in the endometrioma group. No significant difference was determined between day 3 FSH, day 3 estradiol and day 10 FSH value after clomiphene citrate challenge test. There was also no significant distinction when the hormone values were categorized as normal and abnormal. Conclusion Although being statistically insignificant, due to the detection of a borderline significance in the 10th day FSH values after clomiphene citrate test and obtaining elevated hormone levels in the endometrioma group, we can conclude that it is probable to obtain siginificant results in a larger population. © 2011 Düzce Medical Journal

    The effects of estrogen replacement therapy on cognitive processes in postmenopousal women

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    18th Congress of the European-College-of-Neuropsychopharmacology -- OCT 22-26, 2005 -- Amsterdam, NETHERLANDSWOS: 000233860601181European Coll Neuropsychopharmaco

    How to deal hyperresponders in ICSI? Coasting versus non-coasting.

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    Conjoint Annual Meeting of the American-Society-for-Reproductive-Medicine/Canadian-Fertility-and-Andrology-Society -- OCT 15-19, 2005 -- Montreal, CANADAWOS: 000232114601097Amer Soc Reprod Med, Canadian Fertil & Androl So

    Outcome of intracytoplasmic sperm injection in patients with polycystic ovary syndrome or isolated polycystic ovaries

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    Objective: To determine the intracytoplasmic sperm injection (ICSI) and embryo transfer (ET) performance of patients with polycystic ovary syndrome (PCOS) and isolated polycystic ovarian (PCO) morphology. Design: Case-control study. Setting: IVF Center, Hacettepe University Faculty of Medicine. Patient(s): Ninety-nine consecutive infertile women (n = 109 cycles) with PCOS and 58 patients (n = 58 cycles) with isolated PCO morphology were recruited. The control group consisted of 210 patients (n = 232 cycles) with isolated male factor infertility necessitating ICSI. All three groups were matched for female age and body mass index. Intervention(s): Controlled ovarian hyperstimulation and ICSI. Main Outcome Measure(s): Oocyte number, fertilization rate, embryo quality, clinical pregnancy rate, implantation rate, and ovarian hyperstimulation syndrome (OHSS). Result(s): Six (5.5%) cycles in the PCOS group, 6 (10.3%) cycles in the PCO-only group, and 10 cycles (4.3%) in the control group were canceled. Despite a significantly lower total FSH dose used, a significantly higher serum E2 level was attained in both the PCOS and the PCO-only groups compared to the control group. The PCOS and PCO-only groups had significantly higher numbers of retrieved oocyte-cumulus complexes and metaphase II oocytes compared to the control group. The fertilization rates did not differ among the three groups. The mean number of embryos transferred was comparable among the three groups; however, the mean number of grade 1 embryos was significantly higher in the PCOS and PCO-only groups compared to the controls. The clinical pregnancy rates per ET of both the PCOS (66%) and the PCO-only (60%) groups were significantly higher than that of the control group (44%). However, the implantation rates were comparable among the three groups. Four cycles (3.7%) in the PCOS group had OHSS necessitating hospitalization. The respective figures in the PCO-only and the control groups were 1 (1.7%) and 3 (1.3%). Conclusion(s): Patients with the full-blown picture of PCOS or isolated PCO-only morphology behave exactly in the same manner during all stages of assisted reproduction. Owing to the availability of more fertilized oocytes and grade 1 embryos, patients with PCOS or PCO-only morphology are associated with higher clinical pregnancy rates per ET compared to patients with isolated male factor infertility. ©2005 by American Society for Reproductive Medicine
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