bluuebunny/crossref_metadata_2025 huggingface dataset:
Seminoma with intertubular growth pattern: A tumor with ambiguous clinical and gross morphology
Authors: Al-Masqari Mohammed , Al Hamdani Aisha
Published: October 2020

Seminoma constitutes around 30–40% of all testicular tumors. Intertubular seminoma signifies a distinct subtype and a rare growth pattern of seminoma. This type of tumor is usually discovered incidentally during microscopic examination since the lesion is inapparent clinically and macroscopically. It is characterized by distribution of seminoma cells between the seminiferous tubules. Hence, if careful microscopic examination is not performed, the intertubular seminoma can be missed. We report a case of Seminoma with exclusive intertubular growth pattern.
New secondary sign of ACL tear – The medial femoral notch sign (Gupta-Botchu sign)
Authors: Saad Ahmed , Almeer Ghassan , Azzopardi Christine , Gupta Harun , Botchu Rajesh
Published: October 2020

ACL is the most common injured ligament of the knee. The diagnosis on MRI is by primary and secondary signs. We describe a new secondary sign of ACL tear – The medial femoral notch sign. (xxxxxx sign).
Surgical emphysema following shoulder arthroscopy – A case report and review of a less recognized complication
Authors: Sivaram Raghavan , Shanmugasundaram Saseendar , Thangavel Mukhesh , Mohammed Ehteshamuddin Arshad
Published: October 2020

Arthroscopy is an established modality of treatment for various conditions of the shoulder attributable to its minimally invasive nature. The possibility of surgical procedure-related complications is usually low. However, there have been sporadic reports of surgical emphysema following shoulder arthroscopy that can range from simple subcutaneous emphysema to life-threatening pneumothorax (PT) and pneumomediastinum (PM). The mechanism of this phenomenon is still elusive. We report the case of a 41-year-old female without pre-existing lung problems who developed extensive subcutaneous emphysema, PT, and PM after shoulder arthroscopy in the absence of an identifiable tracheal injury and masquerading as angioedema. We have extensively reviewed available literature and the mechanisms proposed have been analyzed. Acknowledging the existence of such a complication along with high degree of suspicion will help tackle the problem early and avert unforeseen complications.
Synthesis and styrene copolymerization of novel fluoro-iodo, trifluoromethyl, and trifluoromethoxy ring-substituted isobutyl phenylcyanoacrylates
Authors: Cimino Alessandra , Azeemullah Amaan M. , Comp Danielle E. , Hunt Sydney C. , Janakis Madison M. , Khan Sonia S. , Labedz Patryk , Lee Christopher , Rocus Sara M. , Schjerven William S. , Kharas Gregory
Published: October 2020

Novel fluoro-iodo, trifluoromethyl, and trifluoromethoxy ring-substituted isobutyl phenylcyanoacrylates, RPhCH=C(CN)CO2CH2CH(CH3)2 (where R is 2-fluoro-5-iodo, 2-fluoro-6-iodo, 2-trifluoromethyl, 3-trifluoromethyl, 4-trifluoromethyl, 2-trifluoromethoxy, 3-trifluoromethoxy, 4-trifluoromethoxy) were synthesized by the piperidine catalyzed Knoevenagel condensation of ring-substituted benzaldehydes and isobutyl cyanoacetate and characterized by CHN analysis, IR, 1H and 13C NMR. The acrylates were copolymerized with styrene in solution with radical initiation (ABCN) at 70C. The compositions of the copolymers were calculated from nitrogen analysis.
Dynamic Stereoselection of Peptide Helicates and Their Selective Labeling of DNA Replication Foci in Cells
Authors: Gómez-González Jacobo , Pérez Yolanda , Sciortino Giuseppe , Roldán-Martín Lorena , Martínez-Costas José , Maréchal Jean-Didier , Alfonso Ignacio , Vázquez López Miguel , Vázquez M. Eugenio
Published: October 2020

Peptide engineering has been extremely successful in creating new structures with defined properties and functions. Although generally overlooked in this context, coordination chemistry offers an additional set of interactions that opens unexplored design opportunities for developing complex molecular structures. With this in mind, we report the development of new artificial peptide ligands that fold into chiral and discrete supramolecular helicates in the presence of labile metal ions such as Fe(II) and Co(II). By selecting appropriate heterochiral β‑turn promoting sequences, we can encode the stereoselective folding of the peptide ligand, and define the physicochemical properties of their corresponding metal complexes. The study of these metallopeptides by CD and NMR spectroscopy, combined with computational methods allowed us to identify and determine the structure of two isochiral ΛΛ-helicates, folded as topological isomers. We also show that these new peptide helicates, dynamically selected in the presence of labile Co(II) ions, can be locked as kinetically-inert species by in situ oxidation to Co(III). Finally, in addition to the in vitro characterization of their selective binding to three-way DNA, cell microscopy experiments demonstrated that a rhodamine-labeled Fe(II) helicate was internalized and selectively stains DNA replication factories in functional cells.
From Science Student to Scientist
Authors: Wang Derek , Dai David
Published: October 2020

Science students are taught that science is a collection of facts and equations when in fact, science is a journey full of false starts, dead ends, and creative detours undertaken by scientists to uncover the truth of reality. A science student seeking to become a scientist must often regress back to a state of childlike wonder and curiosity to prepare for such a journey. We seek to spark this change with hundreds of Quick Takes and Inquiries into specifically chemistry and physics at the introductory level. Each question demands the student to strike out into the wilderness of knowledge---to think deeply, read and ask widely, and model extensively. Upon completion of this curriculum, students should be equipped with the knowledge and mindset to conceive of and execute independent scientific investigations of their own. We also hope that science teachers are inspired to incorporate our open-ended investigations into their own curricula.
Estradiol Determine Liver Lipid Deposition in Ratsfed Standard Diets Unbalanced with Excess Lipid or Protein
Authors: Oliva Laia , Alemany Marià , Fernández-López José-Antonio , Remesar Xavier
Published: October 2020

The ingestion of excess fat often produces an increased body weight, because of higher adiposity and accumulation of fat in the liver. However, modulation of diet energy partition may affect differently the body metabolic responses and the extent of lipid deposition. Ten-week-old male and female rats were fed with either standard rat chow (SD), standard diet enriched with coconut oil (high-fat diet, HF), standard diet enriched with protein (high-protein diet, HP) or a self-selected “cafeteria” diet (CAF) for one month. Both HF and CAF diets provided the same lipid-derived percentage of energy (40%) HP diet protein-energy derived was twice (40%) than those of the SD diet. After the treatment, CAF groups showed significant weight increases. Hepatic lipid content also showed sex-related differences; triacylglycerol accumulation was significant in HF and CAF fed males. Cholesterol content was higher only in the CAF male group. Plasma estradiol in HF and HP males was higher than in CAF. Circulating cholesterol was inversely correlated with estradiol levels, which were proportional to lactate levels. These changes agreed with the differences found in the expression of key hepatic enzymes of lipid and energy metabolism. The protective effect of estrogens preventing excess liver lipid deposition, is also effective in males with ‘normal’ diets unbalanced by lipid or protein, but is not sufficient to protect males from the massive changes produced by a markedly obesogenic cafeteria-type diet. Estradiol protective effects are exerted at the root of energy metabolism, on the partition of substrates distributed from or entering the liver.
Energy and Analytic Gradients for the Orbital-Optimized Coupled-Cluster Doubles Method with the Density-Fitting Approximation: An Efficient Implementation
Authors: Bozkaya Uğur , Ünal Aslı , Alagöz Yavuz
Published: October 2020

Efficient implementations of the orbital-optimized coupled-cluster doubles [or simply ``optimized CCD'', OCCD, for short] method and its analytic energy gradients with the density-fitting (DF) approach, denoted by DF-OCCD, are presented. In addition to the DF approach, the Cholesky-decomposed variant (CD-OCCD) is also implemented for energy computations. The computational cost of the DF-OCCD method is compared with that of the conventional OCCD. In the conventional OCCD, one needs to perform four-index integrals transformations at each CCD iterations, which limits its applications to large chemical systems. Our results demonstrate that DF-OCCD provides significantly lower computational costs compared to OCCD, there are almost 7-fold reductions in the computational time for the \ce{C5H12} molecule with the cc-pVTZ basis set. For open-shell geometries, interaction energies, and hydrogen transfer reactions, DF-OCCD provides significant improvements upon DF-CCD. Further, several factors make DF-OCCD more attractive compared to CCSD: (1) for DF-OCCD there is no need for orbital relaxation contributions in analytic gradient computations (2) active spaces can readily be incorporated into DF-OCCD (3) DF-OCCD provides accurate vibrational frequencies when symmetry-breaking problems are observed (4) in its response function, DF-OCCD avoids artificial poles; hence, excited-state molecular properties can be computed via linear response theory (5) Symmetric and asymmetric triples corrections based on DF-OCCD [DF-OCCD(T)] has a significantly better performance in near degeneracy regions.
Thermal Ranges and Figures of Merit for Gold-Containing Precursors For ALD
Authors: Griffiths Matthew , Dubrawski Zachary , Gordon Peter , Junige Marcel , Barry Sean
Published: October 2020

A survey of known gold-containing chemical vapour deposition (CVD) and atomic layer deposition (ALD) precursors, with a focus on collecting their volatilization and decomposition data. These data were applied to a figure of merit (σ) developed to easily assess the thermal characteristics.
Virtual Screening of Leishmanial Pyridoxal Kinase Enzyme Inhibitors by Repurposed Anti-Trypanosomal Libraries Reveals Two Core Scaffolds
Authors: Alfadhel Sanad
Published: October 2020

Leishmania is an intracellular protozoal infection, and it is classified as a neglected disease by the World Health Organization (WHO). Annually more than 2 million newly diagnosed cases were treated with highly toxic drugs. Leishmanial pyridoxal kinase enzyme (LPDxK) is an essential and druggable target. DNDI1103666 is the most promising lead as a potential inhibitor for LPDxK
Reactivity Trends in the Gas Phase Addition of Acetylene to N-protonated Aryl Radical Cations
Authors: Shiels Oisin , Kelly P. D. , Bright Cameron C. , L. J. Poad Berwyck , Blanksby Stephen , da Silva Gabriel , Trevitt Adam
Published: October 2020

A key step in gas-phase polycyclic aromatic hydrocarbon (PAH) formation involves the addition of acetylene (or other alkyne) to σ-type aromatic radicals, with successive additions yielding more complex PAHs. A similar process can happen for N- containing aromatics. In cold diffuse environments, such as the interstellar medium, rates of radical addition may be enhanced when the σ-type radical is charged. This paper investigates the gas-phase ion-molecule reactions of acetylene with nine aromatic distonic σ-type radical cations derived from pyridinium (Pyr), anilinium (Anl) and benzonitrilium (Bzn) ions. Three isomers are studied in each case (radical sites at the ortho, meta and para positions). Using a room temperature ion trap, second-order rate coefficients, product branching ratios and reaction efficiencies are reported.
Stoichiometric Excess of H2O2 as Strategy of Oxidant Dosing for Intensifying Both Degradation and Mineralization of the Hydrochlorothiazide via UVCH2O2, Dark-Fenton, and Photo-Fenton
Authors: Cunha-Filho Fernando J. , Mota-Lima Andressa , do Nascimento claudio A. Oller , Chiavone-Filho Osvaldo
Published: October 2020

Hydrochlorothiazide (HCT) is a pharmaceutical micropollutant highly toxic to the environment, being strictly mandatory to oxidize it completely toward CO2. In this context, how could the HCT oxidation via advanced oxidative processes benefit from the accelerated oxidation rates promoted by the mineralization stoichiometric excess of H2O2 ? Overall, this work elucidates the role of stoichiometric H2O2 concentration on promoting fast degradation/mineralization rates across Advanced Oxidative Processes (AOP). Employing 0.68 excess of H2O2, it was found absolute (100%) HCT degradation within 60 minutes and 95% within 30 min for UVC-H2O2 oxidation; however, the mineralization of HCT suffered limited optimization even at high H2O2 excess, being at the best performance 26.76% HCT mineralized via UVC photo-Fenton within 60 min at initial 2.00 H2O2 excess. Very presumably, the evaporation of H2O2 was the underlying reason for a low mineralization performance. Together with a detailed mathematical methodology, the time-synchronized evolution of both the residual H2O2 concentration and the TOC depletion were employed to infer the quantity of radical ∙OH that effectively was consumed by the micropollutant mineralization. The global mean efficiency of radicals •OH consumption by the HCT mineralization laid around 15% for UVC Fenton considering H2O2 excess of 2.00. Under these conditions, the residual H2O2 concentration depletes significantly within 30 minutes of UVC photo-Fenton oxidation, which indicates that either the solution heating or stirring is very likely to promote a substantial loss of H2O2 by evaporation in the beaker-assembled reactor
Coupled Nuclear-Electronic Decay Dynamics of O2 Inner Valence Excited States Revealed by Attosecond XUV Wave-Mixing Spectroscopy
Authors: Lin Yen-Cheng , Fidler Ashley , Sandhu Arvinder , Lucchese Robert R. , McCurdy C. William , Leone Stephen , Neumark Daniel
Published: October 2020

Multiple Rydberg series converging to the O2+ 𝑐 4Σ𝑢− state, accessed by 20-25 eV extreme ultraviolet (XUV) light, serve as important model systems for the competition between nuclear dissociation and electronic autoionization. The dynamics of the lowest member of these series, the 3sσg state around 21 eV, has been challenging to study owing to its ultra-short lifetime (< 10 fs). Here, we apply transient wave-mixing spectroscopy with an attosecond XUV pulse to investigate the decay dynamics of this electronic state. Lifetimes of 5.8±0.5 fs and 4.5±0.7 fs at 95% confidence intervals are obtained for v=0 and v=1 vibrational levels of the 3s Rydberg state, respectively. A theoretical treatment of predissociation and electronic autoionization finds that these lifetimes are dominated by electronic autoionization. The strong dependence of the electronic autoionization rate on the internuclear distance because of two ionic decay channels that cross the 3s Rydberg state results in the different lifetimes of the two vibrational levels. The calculated lifetimes are highly sensitive to the location of the 3s potential with respect to the decay channels; by slight adjustment of the location, values of 6.2 and 5.0 fs are obtained computationally for the v=0 and v=1 levels, respectively, in good agreement with experiment. Overall, an intriguing picture of the coupled nuclear-electronic dynamics is revealed by attosecond XUV wave-mixing spectroscopy, indicating that the decay dynamics are not a simple competition between isolated autoionization and predissociation processes.
Polysulfide Anions as Visible Light Photoredox Catalysts for Aryl Cross-Couplings
Authors: Li Haoyu , Tang Xinxin , Pang Jia Hao , Wu Xiangyang , Yeow Edwin K. L. , Wu Jie , Chiba Shunsuke
Published: October 2020

Herein, we disclose the use of polysulfide anions as visible light photoredox catalysts for aryl cross-coupling reactions. The reaction design enables single-electron-reduction of aryl halides upon photo-excitation of tetrasulfide dianions (S42–). The resulting aryl radicals are engaged in (hetero)biaryl cross-coupling, borylation, and hydrogenation in a redox catalytic regime involving S4•–/S42– and S3•–/S32– redox couples.
The Relative Electron Acceptor Abilities of the NO2, NO and CHO Groups and Their Application to the NBO-TS Torquoselectivity
Authors: Yadav Veejendra
Published: October 2020

As against the long held notion in the prediction of torquoselectivity, the relative p- and s-acceptor abilities of NO2, NO and CHO are demonstrated to decrease in the order NO2 > NO > CHO from a combination of different computational parameters.

In systems such as 3-NO2/NO/CHO-cyclobutenes, sC3C4→p*NO and sC3C4→p*CO interactions in the transition states leading to inward or outward opening of the ring are significant. These interactions during the inward opening are much larger than in the outward opening of the three instances discussed herein.
Design, Synthesis, Characterisation & Anticonvulsant Activities of Novel Heterocyclic Substituted Isatin Derivatives
Authors: Kosaraju Lahari  , Raja Sundararajan
Published: October 2020

Twelve new isoxazole/pyrazole/pyrimidine substituted 5-nitrosation analogues were designed according to the requirements of the anticonvulsant drugs pharmacophore model and synthesised from indole-2,3-dione. Entire prepared compounds chemical structures were established from its IR, proton-NMR, Mass spectrum & microanalysis data. Anticonvulsant potency of final isatin analogues was assessed by MES technique & sc PTZ technique. Besides rotarod test was used to assess the neurotoxicity of all potent title analogues. Title compounds exhibited a varying degree of anticonvulsant potency ranging from mild to good. In the present study, it was concluded that pyrazole derivatives exhibited higher anti-epileptic activity than isoxazole derivatives. However, pyrimidine analogues displayed inferior activity than isoxazole analogues. 4-(2-(4-(1-((Dimethylamino)methyl)-5-nitro-2-oxindole-3-ylideneamino)phenyl) hydrazone)-1-(4-chlorophenyl)-3-amino-1H-pyrazole-5(4H)-one 7c was established as the most active analog of this series. Hence this derivative can act as a pilot molecule for further progress of new effective anticonvulsant drugs.
Relationship between obesity and depression, anxiety and psychological distress among Iranian health-care staff
Authors: Heidari-Beni Motahar , Azizi-Soleiman Fatemeh , Afshar Hamid , Khosravi-Boroujeni Hossein , Keshteli Ammar Hassanzadeh , Esmaillzadeh Ahmad , Adibi Peyman
Published: October 2020

Background: Psychological-related disorders such as obesity are a key contributor to morbidity and mortality. Aims: To assess the association between general and abdominal obesity with depression and anxiety among Iranian health-care staff. Methods: This cross-sectional study was conducted under the framework of the Study on the Epidemiology of Psychological Alimentary Health and Nutrition. A total of 4361 Iranian health-care staff were analysed for general obesity and 3213 for central obesity. Overweight and obesity was defined as body mass index 25.0–29.9 and ≥ 30.0 kg/m2, respectively. Abdominal obesity was defined as waist circumference (WC) ≥ 88 cm for females and ≥ 102 cm for males. The Iranian validated versions of the Hospital Anxiety and Depression Scale and the General Health Questionnaire were used to assess depression and anxiety. Results: Stratified analysis by sex revealed no significant relationship between general obesity, depression and anxiety among males. However, we found an inverse association between abdominal obesity (WC > 102 cm) and severe depression among males. In females, abdominal obesity was significantly associated with anxiety, before and after taking confounders into account. No significant association was seen between abdominal obesity and psychological distress in either sex after controlling for potential confounders. Conclusions: Abdominal obesity was associated with anxiety in Iranian adult females but not in males. Further studies, particularly prospective research, are required to confirm these findings.
Поширення, екологія та поведінка бобра річкового (Castor fiber L.) в околицях сіл Губин та Тумин Локачинського району Волинської області
Authors: Omelkovets Yaroslav , Skakun Olga
Published: October 2020

Дослідження проводили в околицях сіл Губин і Тумин Локачинського району Волинської області. Поблизу с. Губин на річці Війниця виявлено поселення бобра річкового чисельністю 14–16 особин; у нижній течії меліоративного каналу, що впадає в неї, – поселення з 10–12 особин; одне нежиле – у верхній течії каналу. Поселення в околицях с. Тумин на річці Турія налічує приблизно 34–40 особин. Поселення бобрів на річках Війниця й Турія завдяки розміщенню неподалік лісових масивів краще забезпечені кормами та менше потерпають від посухи, ніж те, що знаходиться на меліоративному каналі. У поселенні на річці Війниця серед жител переважають хатки, а на річці Турія та меліоративному каналі – нори. Фактором, який лімітує поширення бобра річкового на досліджуваній території, є зростання посушливості клімату.
REGRESSION AND CORRELATION ANALYSIS STOCK PRICE WITH BANKRUPTCY (CASE STUDY WITH ZMIJEWSKI BANKRUPTCY MODEL)
Authors: Sugiarto Teguh , Rahayu Sri , Subagyo Ahmad , Madu Ludiro , Amiri Amir Mohamadian
Published: October 2020

The purpose of this study to determine how the correlation effect of corporate bankruptcies with stock prices. The study was conducted on companies in the ceramics, glass and porcelain sectors whose shares are traded on the Indonesia Stock Exchange and publish the financial statements in Indonesia Stock Exchange (BEI) in the period 2010-2014. The method used in this research is correlation and regression of OLS. From the research that has been done can be concluded that, the result of regression test of five models at the proposed quadratic value of R is very low and indicate the happening of spurious regression. Using hyposis made concluded that Model H0: βi = 0 regression is not significant, whereas correlation test on proposal received H0: βi ≠ 0 happened weak correlation between bankruptcy analysis with stock price.
LIQUIDITY MANAGEMENT AND PROFITABILITY IN ISLAMIC BANKS OF KURDISTAN REGION OF IRAQ: CIHAN BANK FOR ISLAMIC INVESTMENT AND FINANCE AS A CASE STUDY
Authors: Aziz Abdulla Ibrahim , Sharif Atheer Anwar , Salih Delan Ghafoor
Published: October 2020

This research intends to analyze the relationship between liquidity management and profitability in one of the most important Islamic banks in Kurdistan Region of Iraq, Cihan Bank for Islamic Investment and Finance P.S.C. It critically examines the bank’s liquidity ratios and the liquidity management system to analyze its effectiveness in using its liquid assets in generating positive net income. Also, it uses profitability ratios to analyze the bank’s financial position. Then, those results are used to interpret the relationship between the two variables mentioned. The research concludes that better management of liquidity is associated with better profitability. In other words, there is a negative relationship between liquidity and profits in Cihan bank during 2009 to 2015.
REAL POWER LOSS MINIMIZATION BY MUTUAL MAMMAL BEHAVIOR ALGORITHM
Authors: Lenin K.
Published: October 2020

This paper presents a Mutual Mammal Behavior (MM) algorithm for solving Reactive power problem in power system. Modal analysis of the system is used for static voltage stability assessment. Loss minimization is taken is taken as main objective. Generator terminal voltages, reactive power generation of the capacitor banks and tap changing transformer setting are taken as the optimization variables. A Meta heuristic algorithm for global optimization called the Mutual Mammal Behavior (MM) is introduced. Mammal groups like Carnivores, African lion, Cheetah, Dingo Fennec Fox, Moose, Polar Bear, Sea Otter, Blue Whale, Bottlenose Dolphin exhibit a variety of behaviors including swarming about a food source, milling around a central location, or migrating over large distances in aligned groups. These Mutual behaviors are often advantageous to groups, allowing them to increase their harvesting efficiency, to follow better migration routes, to improve their aerodynamic, and to avoid predation. In the proposed algorithm, the searcher agents emulate a group of Mammals which interact with each other based on the biological laws of Mutual motion. MM powerful stochastic optimization technique has been utilized to solve the reactive power optimization problem. In order to evaluate up the performance of the proposed algorithm, it has been tested on Standard IEEE 57,118 bus systems. Proposed MM algorithm out performs other reported standard algorithm’s in reducing real power loss.
REM Sleep Behavior Disorder among Veterans with and without Post-Traumatic Stress Disorder
Authors: Lee EunYoung , Kim Kiwon , So Hyung Seok , Choi Jin Hee , Yoon In-Young , Choi Hayun
Published: October 2020

Objective Among veterans, the prevalence of rapid eye movement sleep behavior disorder (RBD) is higher than among the general population, and some evidence suggests that this is related to post-traumatic stress disorder (PTSD). The purpose of this study was to determine whether the frequency of RBD differs depending on the presence of PTSD or trauma.Methods Patients who underwent nocturnal polysomnography (PSG) and sleep-related questionnaire surveys at the Veteran Health Service Medical Center were reviewed retrospectively. Based on patients with PTSD (n=20; 100% male; 67.9±8.5 years of age), we matched patients exposed to trauma without PTSD (n23; 100% male; age 64.0±13.4) and patients without trauma (n=21; 100% male; age 59.86±10.9).Results PTSD patients reported dream enactment behavior more than the trauma-exposed group without PTSD or the control group (p=0.006). After adjusting for age, there were more RBD patients in the PTSD group than in the trauma exposed group (p=0.049).Conclusion The results showed that RBD occurred significantly more in veterans with PTSD than those exposed to trauma, which suggests that there may be a pathophysiological association between PTSD and RBD.
Multi-Criteria Selection of Suitable Institutional Solid Waste Collection Sites: A Case of KNUST Campus, Kumasi, Ghana
Authors: Sulemana Alhassan , Forkuo Eric K. , Arthur Evelyn T. , Agyei-gyamfi Kwame , Otchere-darko Ebenezer , Ayaim Michael K.
Published: October 2020

Solid waste receptacles siting is becoming increasingly difficult due to increase in population and infrastructure development that has limited available space for waste collection. This study focused on selection of environmentally friendly sites for waste receptacle placement in Kwame Nkrumah University of Science and Technology (KNUST) based on multi-criteria decision analysis in a geographic information system (GIS) environment. ArcGIS software was used in overlaying different thematic maps in order to generate suitable areas for siting communal containers and small bins. Environmental criteria considered include river bodies, vegetation, road network, buildings, car park and slope. The analytical hierarchy procedure was used to determine the weight of each criterion used in finding the suitable sites. The final suitability maps generated showed areas deemed suitable for siting communal containers and small bins. Out of the total land area of KNUST (10.35 km2), 0.86 km2 representing 8.31% was suitable for siting small bins. For communal containers, the final suitability map indicated that 1.69 km2 (16.33%) and 0.73 km2 (7.05%) of the total land area were suitable and most suitable sites respectively. The findings from this study serve as guidance tool for environmentally friendly solid waste receptacle siting and good health promotion with efficient land use planning.
A Study on the Classification of Maritime Security Threat Topics
Authors: Çetin Oktay , Köseoğlu Mesut
Published: October 2020

Maritime transportation security can be violated by piracy and terrorist attacks along with a wide variety of threats which may interrupt the free flow of goods through sea lanes of communication. Any disruption of this flow due to threats which may be encountered in international and territorial waters can adversely affect global economy. This paper aims to review the security challenges faced by maritime industry involving risks emanating through marine environment, threats to sustainable maritime economics, mutual international efforts to preserve stability, security in maritime areas of interest to maintain the flow of commodities throughout the World and conventional maritime security risks as well as the potential economic benefits of the Arctic Region occurring from increasingly diminishing of the sea ice. Considering recent developments in the Arctic and the new security concerns, emerging security strategies in the Arctic Region with a view to its effects on Maritime Economics is emphasized.
Features of electromagnetic and noise environment in the workplace of the staff of MRI departments: problems of hygienic regulation and control
Authors: Pokhodzey Larisa V. , Rudneva Elena A. , Paltsev Yuriy P. , Courierov Nikolay N.
Published: October 2020

Introduction. Magnetic resonance imaging (MRI) is one of the most dynamically developing, high-tech diagnostic methods. At the same time, the specific features of the electromagnetic environment and noise exposures at the medical and technical personnel operating and maintaining MRI workplaces are not well understood and are currently not taken into account when conducting a hygienic assessment of working condition in the Russian Federation. The aim of study is scientific substantiation of the need to improve the hygienic assessment of electromagnetic and noise conditions in the workplace of the staff of MRI departments. Materials and methods. An analytical method to evaluate the current domestic and foreign regulatory and methodological documents that determine the hygienic assessment requirements for electromagnetic environment and noise in MRI departments was used. More than 4 thousand measurements of the intensity of electromagnetic fields and noise in 88 rooms in Moscow equipped with different types of MRI (from 0,1 mT to 3 T) and studies of the performing duration various types of work and electromagnetic field and noise exposure on personnel was done. The amplitude-time and frequency parameters of the variables of the electromagnetic field (EMF) and sound pressure detailed studies have been carried out. Results. Significant differences in controlled indicators, acceptable exposure levels, and control methods has revealed by critical analysis of domestic and foreign hygienic regulatory and methodological documents. The studies showed that the medical and technical personnel of MRI departments are exposed with high spatial and temporal gradients static magnetic fields and extreme levels of noise during diagnostic work in the immediate vicinity of the tomograph magnet. The presence of time-varying magnetic fields in a wide range of low frequencies and radio frequencies having a complicated (pulsed) waveform is a feature of the electromagnetic environment in MRI. New standardized control parameters and limit levels for low-frequency ranges magnetic fields for their adequate hygienic assessment are proposed. Conclusion. The studies made it possible to substantiate the proposals the improving of electromagnetic field and noise hygienic assessment at the MRI staff workplaces.
Electromagnetic field cancer risk epidemiological studies experience in the Russian Federation
Authors: Tikhonova Galina I. , Rubtsova Nina B.
Published: October 2020

Introduction. Based on the urgency of the problem of workers and general public risk of malignant neoplasms due to power frequency (PF) electromagnetic fields (EMF) impact, which led to research on its role in leukemia development expansion in all countries, the data of 4 similar studies of the Institute of occupational health are summarized. The aim of the study is to assess the risk of hemoblastosis in workers and general public under EMF occupational and non-occupational exposure. Materials and methods. 4 analytical epidemiological studies were performed: 2 cohort studies and 2 case - control studies. Results. Cohort study of 500 kV electric grid facilities personnel mortality, taking into account the electric (EF) and magnetic field (MF) exposure values, showed that the standardized relative risk (SRR) of death from all causes was 0.61; from cardiovascular diseases - 0.54, malignancies - 0.89, accidents, injuries and poisoning - 0.95. At the same time, from leukemia, SRR was increased by 2 times compared to the control (2.03), but statistically insignificant (95% CI 0.23-7.31). Retrospective case - control cancer-epidemiological study aimed at assessing the relationship between hemoblastosis various forms development and PF EMF occupational revealed to statistically unreliable increase of leukemia developing relative risk (OR) (1.64). MF mainly exposed personnel were found to have an increased risk of lymphomas developing (2.92), which was statistically significant (χ2 >3,84). Cancer-epidemiological case-control study to identify a causal relationship between parents occupational EMF exposure and childhood hemoblastosis development revealed the tendency to increase the risk, more pronounced in case of fathers MF exposure as well as high-voltage equipment EMF exposure (OR=4.6 95% CI 0.6-35.0 and OR=2.7 CI 0.9-7.8). In the study of mortality of living in the vicinity of 500 and 750 kV substations and overhead transmission lines population, due to low mortality from all causes of death, there was standardized risk of death from leukemia statistically nonsignificant increased (SR-1,3 95% CI 0,2-7,0). Conclusion. The results of studies showed a tendency to increase the risk of dying from hemoblastosis against the background of low mortality rates from other classes of diseases, which coincides with the main conclusions of most foreign publications on the problem.
Public Risk Perception of Nuclear Power in Serbia: Fear of Exposure to Radiation vs. Social Benefits
Authors: Cvetković Vladimir M. , Öcal Adem , Lyamzina Yuliya , Noji Eric K. , Milošević Goran , Jovanović Mihailo
Published: October 2020

Nuclear power (NP)
remains one of the choices for increasing environmental and social concerns
related to energy needs due to its relatively low level of emissions. At the
other hand, serious problems can arise as a result of potential accidents. For
example, the nuclear power plant (NPP) crisis in Fukushima Daichi (2011) has
caused a great deal of concern not only for the Japanese people, but also for
the world. Today, the consequences of this occasion continue in EU countries.
However, Serbia does not have an NP plant on its own, it has about 15 NP
stations around it. The Serbian Government, therefore, wanted to know what the majority of its people think about nuclear energy (NE) and possible consistency. The
objective of this paper is to present the results of the Serbian population
assessment of the NP risk perception of the trial. A series of 270 face-to-face
interviews took place in the public square of Belgrade in March 2019. A
logistic regression analysis was used to examine the cumulative effects of the
different risk factors. As a key result, it was found that almost all
respondents did not support the construction of the NP in Serbia. In addition,
this research identified several important variables that have a significant
impact on the perception of the public risk of NP.
Nipah (Nypa fruticans Wurmb.) fruit as a potential natural antioxidant source
Authors: Hermanto H , Mukti R C , Pangawikan A D
Published: October 2020

Nipah is one of mangrove plant that grows in coastal areas. South Sumatra province has a region with a watershed which is overgrown with nipah plants. Until now, nipah fruit has a low economic value because of the lacks of knowledge about the processing techniques of nipah fruit and the lacks of scientific attention which cover up the potential of nipah fruit as a functional food. This study aims to reveal the potential of nipah fru it, especially as natural antioxidants source. Total phenolics content (TPC) and antioxidant activities of Nypa fruticans fruit extracts (ripe and unripe) have been analyzed. Fruit extract from unripe nipah fruits (FEUN) got the highest phenolics content (121.3 ± 3.3 mg GAE/g). Radical scavenging activity of FEUN, assessed by 1,1–diphenyl–2-picrylhydrazyl (DPPH) radicals showed inhibitory activity about 81 ± 3.1%RSA. Hopefully, this research could reveal the potential of nipah fruit as a potential source of natural antioxidant.
Social and Cultural Focus in EFL Learning. Does Understanding Target Language Culture Increase Interaction in the EFL Classroom?
Authors: Alshenqeeti Hamza
Published: October 2020

The value of encouraging interaction in the EFL classroom has been well documented in the literature and numerous methods have been indicated as being beneficial in this respect. Similarly, there is also a growing recognition of the value of incorporating social and cultural learning about the target language and its speakers into the EFL curriculum. In line with Vygotsky’s view that learning is social construction that occurs when individual integrate and participate in activities and knowledge sharing, this would suggest that incorporating cultural and social learning into the language learning classroom can increase the integration of students. Drawing on definitions of culture, highlighting potential routes to providing information about target language culture and identifying the connections between cultural knowledge and language proficiency and communicative competence, the perspective is put forward that social and cultural learning can lead to increased integration in the EFL classroom.
Laporan minggu ketiga kegiatan 4 KKLP posko Bontonompo
Authors: hidayah nurul
Published: October 2020

Kuliah Kerja Lapang Plus (KKLP) merupakan suatu kegiatan perkuliahan yang bersifat intrakurikuler dalam bentuk pengabdian pada masyarakat yang dilakukan oleh mahasiswa dalam jangka waktu tertentu. Oleh karena, sifatnya intrakurikuler sehingga setiap mahasiswa yang akan menyelesaikan studi diperguruan tinggi pada suatu program stara satu (S1) harus mengikuti KKLP.
Pembinaan TK/TPA di desa gantarang
Authors: Baktiar
Published: October 2020

Kuliah kerja lapang plus (KKLP) merupakan suatu kegiatan perkeluliahan yang bersifat intrakulikuler dalam bentuk pengabdian pada masyarakat yang dilakukan oleh mahasiswa dalam jangka waktu tertentu.oleh karena,sifatnya intrakulikuler sehingga setiap mahasiswa yang akan menyelesaikan studi di perguruan tinggi pada suatu program strarta satu (SI) harus mengikuti KKLP.
Analisis Jurnal - Olivia Aldora Maria Tirta 802020171
Authors: M.T Olivia Aldora
Published: October 2020

1.Nama Jurnal : Hanifiya: Jurnal Studi Agama – Agama 2.Volume : 33.Nomor : 14.Halaman : 14 - 265.Tahun Terbit : 20206.Judul Jurnal : “Ritual Mistis di Dunia Politik: Studi pada Ritual Ngalab Berkah di Gunung Kemukus”7.Nama Penulis : Fibry Jati Nugroho
laporan seminar mirnawati n
Authors: n Mirnawati
Published: October 2020

kuliah kerja lapang plus (kklp) merupakan suatu kegiatan perkuliahan yang bersifat intrakulikuler dalam bentuk pengabdian pada masyarakat yang dilakukan oleh mahasiswa dalam jangka waktu tertentu oleh karna sifatnya imtrakulikuler sehingga setiap mahasiswa yang menyelesaikan pendidikan diperguruan tinggi pada suatu program starata satu (s1) harus mengikiti kklp
KOLEKSI TUMBUHAN TERANCAM DI KEBUN RAYA CIBODAS DARI HASIL EKSPLORASI TAHUN 2015-2017 DI BENGKULU DAN LAMPUNG (SUMATRA)
Authors: Putri Dwinda Mariska , Suhendri Yudi
Published: October 2020

The living collection of Indonesian Botanic Gardens mainly derived from its native habitat accross Indonesian Archipelago. Over the years, native western Indonesian flora have been cultivated in Cibodas Botanic Gardens, a mountaineous site for plant from higher altitude of origin. During 2015-2017 flora exploration program were focused in 3 conservation areas in two province of Sumatra Bengkulu and Lampung. Each site is Gunung Seblat National Park and Bukit Raje Mandare surround Gunung Patah in Bengkulu, other is Tanggamus protected forest in Lampung. There are 2 threatened plants listed in IUCN red list coming from this exploration namely Castanopsis tungurut (Blume) A.DC and Lithocarpus indutus (Bl) Rehd.
Seminar program kerja di desa gantarang
Authors: Sofyan Karimali
Published: October 2020

Kuliah kerja lapang plus (KKLP) merupakan suatu kegiatan perkeluliahan yang bersifat intrakulikuler dalam bentuk pengabdian pada masyarakat yang dilakukan oleh mahasiswa dalam jangka waktu tertentu.oleh karena,sifatnya intrakulikuler sehingga setiap mahasiswa yang akan menyelesaikan studi di perguruan tinggi pada suatu program strarta satu (SI) harus mengikuti KKLP.
Laporan minggu ke tiga kegiatan empat
Authors: muh.risal
Published: October 2020

Kuliah kerja lapan plus (kklp) merupan suatu kegiatan yg bersifat intrakurikuler dlam bentuk pengabdian pada masyarakat yg di lkukan oleh mahasiswa dlam jangka waktu trtentu.oleh karena,sifatnya intrakurikuler sehingga stiap mahasiswa yg akan menyelesaikan studi di perguruan tinggi pda suatu program strata satu (s1) hrus mengikuti kklp
Analisa Pengaruh Perubahan Pitch Ratio dan Jumlah Blade Terhadap Kavitasi Pada Controllable Pitch Propeller (CPP)
Authors: Arifin Mohammad Danil
Published: October 2020

Dalam bidang rekayasa kavitasi didefinisikan sebagai proses pembentukan fase uap dari suatu cairan ketika cairan tersebut mengalami penurunan tekanan pada suhu sekeliling (ambient temperature) yang tetap. Kavitasi merupakan fenomena yang merugikan dalam operasinal kapal, karena menyebabkan banyak kerugian. Pengaruh yang merugikan tersebut berupa menurunnya efisiensi propeller, merusak material propeller, kecepatan kapal menjadi lebih rendah dan menyebabkan getaran dan kebisingan. Oleh karena itu dalam penelitian ini dilakukan analisa kavitasi pada Controllable Pitch Propeller (CPP) dengan melakukan variasi jumlah daun yaitu 3 , 4 dan 5 daun, variasi diameter yaitu 30, 40 dan 50 cm, serta variasi pitch yaitu 0.4, 0.6, dan 0.8. Metode yang digunakan dalam penelitian ini adalah metode simulasi. Hasil simulasi menunjukkan bahwa perbedaan putaran propeller memiliki pengaruh terhadap besarnya nilai perbedaan tekanan. Semakin meningkat putaran propeller maka nilai dari perbedaan tekanannya akan semakin meningkat pula. Perbedaan design propeller memiliki pengaruh terhadap area kavitasi yang terjadi pada propeller. Prosentase area kavitasi yang terjadi pada propeller memiki kecenderungan naik pada jumlah blade, putaran serta pitch yang semakin meningkat pula.
Pembinaan TK/TPA di desa gantarang
Authors: nasir Novi Reza
Published: October 2020

Kuliah kerja lapang plus (KKLP) merupakan suatu kegiatan perkeluliahan yang bersifat intrakulikuler dalam bentuk pengabdian pada masyarakat yang dilakukan oleh mahasiswa dalam jangka waktu tertentu.oleh karena,sifatnya intrakulikuler sehingga setiap mahasiswa yang akan menyelesaikan studi di perguruan tinggi pada suatu program strarta satu (SI) harus mengikuti KKLP.
Laporan minggu ketiga kegiatan pertama
Authors: pertiwi
Published: October 2020

Kuliah kerja lapang plus (KKLP) merupakan suatu kegiatan perkuliahan yang bersifat intrakurikuler dalam bentuk pengabdian pada masyarakat yang dilakukan oleh mahasiswa dalam jangka waktu tertentu.
Greek word recognition by Greek readers and the DRC model
Authors: Kapnoula Efthymia C , Protopapas Athanassios , Saunders Steven J. , Coltheart Max
Published: October 2020

We evaluated the dual route cascaded (DRC) model of visual word recognition using Greek behavioural data on word and nonword naming and lexical decision, focusing on the effects of syllable and bigram frequency. DRC was modified to process polysyllabic Greek words and nonwords. The Greek DRC and native speakers of Greek were presented with the same sets of word and nonword stimuli, spanning a wide range on several psycholinguistic variables, and the sensitivity of the model to lexical and sublexical variables was compared to the effects of these factors on the behavioural data. DRC pronounced correctly all the stimuli and successfully simulated the effects of frequency in words, and of length and bigram frequency in nonwords. However, unlike native speakers of Greek, DRC failed to demonstrate sensitivity to word length and syllabic frequency. We discuss the significance of these findings in constraining models of visual word recognition.
“When will it be over?” U.S. Children’s Questions and Parents’ Responses about the COVID-19 Pandemic
Authors: Menendez David , Klapper Rebecca E. , Golden Michelle Z. , Mandel Ava R , Nicholas Katrina A. , Schapfel Maria H. , Silsby Olivia O. , Sowers Kailee A. , Sumanthiran Dillanie , Welch Victoria E. , Rosengren Karl S.
Published: October 2020

Parent-child conversations are important for children’s cognitive development, children’s ability to cope with stressful events, and can shape children’s beliefs about the causes of illness. In the context of a global pandemic, families have faced a multitude of challenges, including changes to their routines, that they need to convey to their children. Thus, parent-child conversations about the coronavirus pandemic might convey information about the causes of illness, but also about how and why it is necessary for children to modify their behaviors to comply with new social norms and medical guidance. The main goal of this study was to examine the questions children ask about the COVID-19 pandemic and how parents answer them. This survey included responses from a national sample of 349 predominantly white parents of children between the ages of 3 and 12 recruited through Amazon’s Mechanical Turk in United States. Parents reported that although children asked about COVID-19 and its causes (17.3%), children asked primarily about lifestyle changes that occurred as a result of the pandemic (24.0%) and safety (18.4%). Parents reported answering these questions by emphasizing that the purpose of different preventative measures was to protect the child (11.8%) or the family (42.7%) and providing reassurance (13.3%). Many parents discussed how it was their social responsibility to slow the spread of the virus (38.4%). Parents of younger children tended to shield them from information about COVID-19 (p = .038), while parents with more knowledge were more likely to provide explanations (p < .001). Our analysis shows that families not only discuss information about the virus but also information about changes to their lifestyle, preventative measures, and social norms.
Mixed Emotions, But Not Positive or Negative Emotions, Facilitate Legitimate Virus-Prevention Behaviors and Eudaimonic Outcomes in the Emergence of the COVID-19 Crisis
Authors: Vincent Oh Yong Sheng , Tong Eddie M W
Published: October 2020

We report four studies (N=1419) examining emotional reactions from March to April 2020, when COVID-19 exhibited exponentially increasing infections and fatalities. Specifically, we examined associations between emotions with self-reported intentions to enact virus-prevention behaviors that protect oneself from COVID-19 and eudaimonic functioning. Study 1A, 1B, and Study 2 provided naturalistic evidence that mixed emotions predicted legitimate virus-prevention behaviors and eudaimonic functioning in the United States and Singapore, and Study 2 also supported receptivity as a mediator. Finally, Study 3 provided experimental evidence that mixed emotions causally increased legitimate virus-prevention behaviors relative to neutral, positive emotion, and negative emotion conditions, whereas eudaimonic functioning was increased only relative to the neutral condition. Across all studies, positive and negative emotions were unrelated to legitimate virus-prevention behaviors, while relationships with eudaimonic functioning were inconsistent. While self-reported measures do not represent actual behaviors, the findings suggest a potential role for mixed emotions in pandemic-related outcomes.