bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study of the Nuclear Structure for Some Target Nuclei Used in the Production of Beta-Emitting Radioactive Isotopes for the Fabrication of Nuclear Batteries
Authors: Alzubadi Ali A. , Nassir Samaa S. 
Published: January 2021

The nuclear structure of 40Ar, 112Cd, 133Cs, 151Eu, 154Sm, and 226Ra target nuclei used in nuclear battery technology was investigated. These nuclei are widely used for the radioisotope thermo-electric generator space studies and for betavoltaic battery microelectronic systems. For this purpose, some nuclear static properties were calculated. In particular, the single particle radial nuclear density distribution, the corresponding root mean square radii, neutron skin thicknesses, and binding energies were calculated within the framework of Hartree-Fock approximation with Skyrme interaction. The bremsstrahlung spectra produced by the absorption of beta particles through the betavoltaic process and backscattered photons spectrum were also studied. All the obtained results were compared with available experimental data.
Optical and Structural Properties of Prepared Polyaniline â€“ Graphene (PANI/GN) Nanocomposite
Authors: Abdullah Najlaa J. , Essa Abbas F. , Hasan Salma M. 
Published: January 2021

Polyaniline (PANI) polymer was successfully prepared by the chemical oxidation method at 0 oC. Polyaniline-nano grapheme (GN) powder nanocomposites were prepared by the addition of GN with different weight ratios (0.1, 1, 5, and 10 g wt. %) during the polymerization of PANI. It was found that the polymerization reaction of poly-aniline was exothermic. The effect of adding nano-graphene powder during polymerization process on the time and temperature of the reaction was studied. The resulting polymer was diagnosed using several methods, including Fourier transform infrared spectroscopy (FT-IR) and UV-VIS spectrophotometry. The results of FTIR demonstrated a shift to higher wave numbers in the peaks of nanocomposites, due to PANI peaks, in addition to the matching between the groups of active sites of the polymer with its chemical composition. The results of the optical properties showed a decrease in the energy gap of the nanocomposite compared with that of the pure PANI sample. The morphology of the samples was studied using Scanning Electron Microscope (SEM). The increase in the concentration of GN led to a change in the surface morphology of the composites. The results predict that the PANI/GN nano-composites can be used in many applications, such as those of sensors.
Improving the Iraqi Oil Well Cement Properties Using Barolift: an Experimental Investigation
Authors: Hadi Ali M. , Al-Haleem Ayad A. 
Published: January 2021

Cement is a major component in oil and gas drilling operations that is used to maintain the integrity of boreholes by preventing the movement of formation fluids through the annular space and outside the casing. In 2019, Iraq National Oil Company ordered all international oil and gas companies which are working in Iraq to use Iraqi cement (made in Iraq) in all Iraqi oil fields; however, the X-ray fluorescence (XRF) and compressive strength results in this study show that this cement is not matching with American Petroleum Institute (API) standards.
During this study, barolift was used to improve the properties of Iraqi cement used in oil wells at high pressure and high temperature (HPHT). Barolift (1 g) was added to cement admixture to evaluate its influence on improving the performance of cement, mainly related to the property of toughness.
Primarily, the quality and quantity of cement contents were determined using X-ray fluorescence. Experiments were conducted to examine the characteristics of the base cement and the cement system containing 1g of barolift, such as thickening time, free water, compressive strength, and porosity. X-ray diffraction (XRD), scanning electron microscope (SEM), and energy dispersive X-ray spectroscopy (EDS) were conducted for analyzing the microstructure of cement powder.
The experimental results showed that barolift acted as a retarder and improved the thickening time, slightly increased the free water, enhanced the mechanical properties, reduced the porosity, and aided in scheming new cement slurry to withstand the HPHT conditions. Microstructure analysis showed that barolift particles blocked the capillaries by filling cement spaces and, thus, a denser and stricter cement network was achieved.
Representative Sector Modeling and Waterflooding Performance in Rumaila Oilfield
Authors: Shamkhi Mustafa Kamil , Aljawad Mohammed Salih 
Published: January 2021

Rumaila supergiant oilfield, located in Southern Iraq has a huge footprint and is considered as the second largest oilfield in the world. It contains many productive reservoirs, some known but without produced zones, and significant exploration potential. A fault divides the field into two domes to the north and south. Mishrif reservoir is the main producing reservoir in the North Rumaila oilfield. It has been producing for more than 40 years and is under depletion. However, it was subjected to water injection processes in 2015, which assisted in recovery and pressure support. Thus, requirements of managing flooding strategies and water-cut limitations are necessary in the next stages of the field life.
In this paper, sector modeling was applied to a specific portion of the field, rather than full-field modeling, to accelerate history matching strategy and correlate static to dynamic modelsâ€™ efficiently, with a minimum level of tolerance. The sector was modeled by surrounding with additional grid blocks and two pseudo wells to achieve a good matching with actual available data.
PVT data were used for fluid modeling of a well contained in the sector, and two rock functions were inserted to the model to achieve acceptable history matching. Twelve wells were considered in this research, two of them were injectors and the remaining are producers. For future performance, some of these wells were subjected to new completion and workover processes for field development and pressure maintenance. The importance of the development plan is to represent a way for field development without new wells to be drilled. This was conducted by adding perforations to some wells, plugging the high water-cut production zones, changing production and injection rates, and converting the producers to injectors.
Detection of the Antiseptic Resistance Gene among Pseudomonas aeruginosa Isolates
Authors: Ù†Ø¹Ù…Ø© Ø§Ø®Ù„Ø§Øµ 
Published: January 2021

Pseudomonas aeruginosa is an opportunistic pathogen that causes a number of infections in immunocompromised patients. This organism appears to improve resistance to many antimicrobial agents and a high percentage of clinical isolates of P. aeruginosa exhibit multidrug resistance (MDR) phenotype . The purpose of this study is to screen the antibiotic susceptibility patterns and the prevalence of qacE delta1 gene among bacterial isolates. Accordingly, 145 samples were collected from different clinical sources from patients who admitted to different hospitals in Baghdad city in a period ranged 23/8/2018-1/1/2019. The isolates were diagnosed as P. aeruginosa based on routine bacteriological methods and confirmed by a molecular method using 16SrRNA gene. The antibiotic susceptibility test was performed to all identified isolates by Kirby-Bauer Disk Diffusion method using ten types of antibiotics. The results of antibiotics susceptibility test revealed high levels of resistance toward Piperacillin (72.22%), Trimethoprim (68%), Ceftazidime (68%), Colistin (40.28%), and Levofloxacin (33.33%). And , the minimum inhibitory concentration (MIC) of Cetrimide was tested using different concentrations (2.048 to 0.004Âµg/100Âµl) and the results showed that MIC values ranged between 2.048 and 0.016) Î¼g/100Î¼L, and the concentration of 0.256 Î¼g/100Î¼l was more frequent . Finally, the prevalence of qacE delta1 gene among bacterial isolates was detected in percentage 63.88% among bacterial isolates .
Association Between Leptotrichia Amnionii and Atopobium Vaginae as A Risk Factor For Miscarriage States in A Specimens of Iraqi Women
Authors: Akram Ghufran TH. , Kandala Nuha J. 
Published: January 2021

Miscarriage is one of the fundamental complications occurring in pregnant women. Many fastidious and uncultivated bacterial species are related to miscarriage and have a significant role in the infection. The association between inverse pregnancy outcomes and infections of abnormal bacteria has been rarely investigated. Therefore, this study aimed to determine Leptotrichia amnionii and Atopobium vaginae as a risk factor for miscarriage states. A total of 80 cervical swabs and blood samples were obtained from females (34 non-pregnant with recurrent spontaneous miscarriage, 11 pregnant who had previous miscarriage, and 35 without miscarriage as control) who were referred to a hospital in Baghdad city. The relationship between demographic characteristics and miscarriage groups indicates a positive association between the age of 30 years and >45 years and miscarriage states, while no significant association (p>0.05) was found for the other parameters compared with the control. Also, no association was observed between the levels of TORCH IgM , antiphospholipid (APL) IgM, and anticardiolipidin (ACL) IgM antibodies and spontaneous miscarriage. The findings of RT-PCR detection revealed that, out of 45 samples of recurrent spontaneous miscarriage, 17 were detected with high-risk of L. aminonia compared with two samples from the control group. Also, 7 samples of recurrent spontaneous miscarriage were shown to be infected with A. vaginae compared with five samples from the control group. The adjusted odd ratios (ORs) of L. anmionii for spontaneous miscarriage and pregnancy states were 7.89 (CI 95%, 1.60 - 39.00) and 9.43 (CI 95%, 1.43 - 61.9), respectively, with highly significant difference between the study groups compared with the control. While no significant result was recorded between the adjusted ORs of A. vaginae for spontaneous miscarriage and pregnancy states, which were 1.23 (CI 95%, 0.416 - 3.67) and 0.636 (CI 95%, 0.083 - 4.88), respectively, compared with the control.
Molecular Detection of Human Herpes Virus-8 in Prostatic Adenocarcinoma and Benign Prostatic Hyperplasia Tissues by DNA -In Situ Hybridization
Authors: Saleh Zainab Mahdi , Al-Saffar Jinan , Hassan Saad 
Published: January 2021

Human Herpes Virus-8 (HHV-8) is a sexually transmitted viral infection that can infect the prostate epithelium in immunocompromised adults. Recently, HHV-8 was related to the development and progression of several human malignancies like prostatic adenocarcinoma. This retrospective research was designed to analyze the distribution and possible impact of HHV-8 infection on prostatic adenocarcinogenesis. A total number of one hundred formalin-fixed prostatic tissues were enrolled in this research; forty Prostate Adenocarcinoma (PAC) biopsies, forty biopsies from Benign Prostatic Hyperplasia (BPH), and twenty Apparently Normal Prostatic Tissues (ANPT) as a control group. Detection of HHV -8 DNA was achieved by a highly-sensitive variant of Chromogenic In Situ Hybridization (CISH) technique. In the mean age of PAC patients was 64.08Â±7.54years. Detection of CISH reactions for HHV 8- DNA was observed in tissues of 70% (28 out of 40) of PAC patients and 30% (12 out of 40) of BPH tissues, whereas no positive reactions were detected in the ANPT group. Detection of CISH reactions for HHV 8- DNA was observed in 55.6% of tissues of PAC patients with well grade histopathological examination, 87.5% of moderate grade, and 69.6% of poorly differentiated grade. It can be concluded that HHV-8 infection might contribute in prostate oncogenesis, together with other essential oncogenic viruses.
PENGARUH STRUKTUR KEPEMILIKAN TERHADAP PENGUNGKAPAN CORPORATE SOCIAL RESPONSIBILITY
Authors: Rivandi Muhammad 
Published: January 2021

Corporate Social Responsibility (CSR) is an important element for the company's success and can provide benefits to the company. The purpose of this study is to obtain empirical evidence regarding the effect of ownership structure on CSR disclosure. The research population is all high-profile companies listed on the IDX. The sample in this study were 42 companies with 120 sample selected by the purposive sampling method. The analysis method used is the panel regression method. Based on the hypothesis the results of the study show that managerial ownership has a negative effect on CSR disclosure, and institutional ownership has a positive effect on CSR disclosure, while public ownership does not effect on CSR disclosure.
INTENSITAS PENGHINDARAN PAJAK PADA PERUSAHAAN: DAMPAK CORPORATE SOCIAL RESPONSIBILITY DAN CORPORATE GOVERNANCE
Authors: Salsabila Arwaly Haifa , Arieftiara Dianwicaksih , Widiastuti Ni Putu Eka 
Published: January 2021

The purpose of this study is examine the influence of Corporate Social Responsibility (CSR) and Corporate Governance (CG) with proxy institusional ownership and audit quality. In this research leverage and sales growth used as variabele control. The population of this research is sub-sector trade, service and investastation firms that listed in Indonesian Stock Exchange period 2016-2018. Sample selected by purposive sampling method with certain criteria and collected 172 data samples. Testing the hypothesis in this study used Multiple Linear Regression Analysis. The result of these test indicate that: there is no significant influence of corporate social responsibility on tax avoidance, institusional ownesrship there is a positive significant on tax avoidance, audit quality there is no significant on tax avoidance.
Layered ultramafic complexes of the Barberton Greenstone Belt – age constraints and tectonic implications
Authors: Hofmann A. , Anhaeusser C.R. , Li X-H. 
Published: January 2021

Abstract
Layered ultramafic–mafic complexes are a common component of the stratigraphically uppermost part of the Onverwacht Group of the Barberton Greenstone Belt. Associated with the Mendon Formation in the south and the Weltevreden Formation in the north, they represent an assemblage of thick differentiated flows and shallow synvolcanic intrusions ranging in composition from dunite to gabbro. U-Pb zircon dating of gabbro from the Sawmill and the Mundt’s Concession ultramafic complexes from the northern part of the Barberton Greenstone Belt yielded ages of 3 258 ± 8 Ma and 3 244 ± 11 Ma, respectively. The ultramafic complexes are thus regarded to have been emplaced during a magmatic flare-up in the final stage of Weltevreden Formation volcanism, post-dating ultramafic magmatism in the southern part of the belt by several millions of years and thus suggesting diachronous evolution of the Onverwacht Group in the Barberton Greenstone Belt.
Cutoff Values to Interpret Short-term Treatment Outcomes After Arthroscopic Meniscal Surgery, Measured With the Knee Injury and Osteoarthritis Outcome Score
Authors: Pedersen Julie Rønne , Roos Ewa M. , Thorlund Jonas Bloch , Terluin Berend , Ingelsrud Lina Holm 
Published: January 2021

Objective To determine the proportions of patients who (1) perceived their symptoms to be satisfactory, (2) perceived their treatment to have failed, or (3) perceived that they improved to an important degree at 3 months after arthroscopic meniscal surgery; and to determine Knee injury and Osteoarthritis Outcome Score (KOOS) subscale scores corresponding to the Patient Acceptable Symptom State (PASS), treatment failure, and the minimal important change (MIC) for improvement. Design Prospective cohort study. Methods Patients from the Knee Arthroscopy Cohort Southern Denmark who had arthroscopic meniscal surgery were included. The PASS, treatment failure, and MIC improvement values were calculated for the KOOS subscales with anchor-based approaches, using the adjusted predictive modeling method. Subgroup analyses were performed by stratifying by age (40 years or younger versus older than 40 years) and surgery type. Results Six hundred fourteen patients (44% female; mean ± SD age, 50 ± 13 years) were included. At 3 months after arthroscopic meniscal surgery, 45% of patients perceived their symptoms to be satisfactory, 19% perceived the treatment to have failed, and 44% to 60% perceived that they had improved to an important degree across the 5 KOOS subscales (for PASS/treatment failure, respectively: pain, 74 and 60 points; symptoms, 72 and 61 points; function in activities of daily living, 81 and 68 points; sport and recreational function, 43 and 26 points; and knee-related quality of life, 52 and 40 points; for MIC improvement: pain, 12 points; symptoms, 8 points; function in activities of daily living, 12 points; sport and recreational function, 17 points; and knee-related quality of life, 9 points). The PASS values were 6 to 17 points higher for patients 40 years or younger compared to patients older than 40 years. Conclusion At 3 months after meniscal surgery, approximately half of the patients perceived their symptoms to have improved to an important degree, 4 in every 10 patients perceived their symptoms to be satisfactory, and 2 in every 10 patients perceived the treatment to have failed. J Orthop Sports Phys Ther 2021;51(6):281–288. Epub 30 Jan 2021. doi:10.2519/jospt.2021.10149
Principais causas de absenteísmo por professores: revisão integrativa de literatura
Authors: Porto Tatiana Naiana Rodrigues dos Santos , Rodrigues Tatyanne Silva , Mendes Mara Monize Pinheiro , De Sousa Raisa Mikahil Monteiro , Feitosa Gaubeline Teixeira , De Sousa Isaura Danielli Borges , Das Neves Nisleide Vanessa Pereira , Dos Reis Leonilson Neri 
Published: January 2021

Objetivo: Identificar na literatura as principais causas de absenteísmo por professores. Métodos: Revisão integrativa, a coleta dos dados foi realizada no período de julho a novembro de 2019, utilizando via Biblioteca Virtual em Saúde (BVS) as bases de dados Literatura Latino-Americana em Ciências de Saúde (LILACS), Banco de Dados em Enfermagem (BDENF), além de dados da biblioteca virtual Scientific Eletronic Library Online (SciELO). Foram utilizados os descritores: Professores, Absenteísmo, Licença médica e Saúde do trabalhador. Tendo como recorte temporal artigos publicados de 2015 a 2019, disponíveis em inglês, português e espanhol. Resultados: A pesquisa sobre absenteísmo por professores evidenciou que os motivos que mais levaram ao abandono do trabalho foram problemas de saúde, segundo os estudos analisados, os problemas emocionais (22%), respiratórios (17%) e desvalorização (9%) também foram apontados. Os problemas vocais e a sobrecarga de trabalho correspondem a 26% das causas evidenciadas na pesquisa. As condições de trabalho às quais os docentes estão submetidos em algumas ocasiões acabam por provocar o adoecimento e posteriormente o afastamento da função. Considerações finais: A falta de interesse dos alunos, falta de apoio institucional e de reconhecimento dos seus esforços são outros fatores que também contribuem para o afastamento do trabalho.
Atendimento odontológico de urgência em meio à pandemia do COVID-19: relato de caso clínico
Authors: Lima Thaine Oliveira , Rocha Aurélio de Oliveira , Dos Anjos Lucas Menezes , Da Silva Jardel Gomes , Santos David Wendell Soares , Costa Max Dória 
Published: January 2021

Objetivo: Relatar um caso clínico de urgência odontológica no período da pandemia por COVID-19. Detalhamento do caso: Paciente do gênero feminino, 55 anos, procurou atendimento em Clínica Odontológica queixando-se: “meu dente da frente caiu”. Antes do atendimento, foi realizado questionário referente à possível contaminação pelo novo coronavirus via telefone, e abordagem a fim de concluir se o caso da paciente se enquadrava como atendimento de urgência. Visto que a paciente realmente necessitava do atendimento, foi feito o agendamento. Clinicamente a paciente apresentava coroa fraturada da unidade 11, onde foi realizada a instalação de um pino de fibra de vidro e cimentação de coroa provisória em única sessão. O cirurgião-dentista responsável pelo atendimento seguiu todas as orientações de precauções recomendadas pelos Orgãos de Saúde. Considerações finais: Neste momento cabe o discernimento para execução de procedimentos odontológicos de maneria segura, visto o potencial de infecção na saliva e formação exuberante de aerossóis provenientes da realização dos procedimentos odontológicos.
O manejo multidisciplinar do paciente com demência frontotemporal à luz da literatura mundial
Authors: Silva Nickolas Souza , Macedo Lady Jane da Silva , Silveira Alexandre Vitor Dias , Rossi Bruna Araújo , Diniz José Leandro da Silva Menezes , Santana Mariana Gomes , De Souza Pedro Henrique , Sacavem Pricilla Helena , Florêncio Paulo César Monteiro , De Souza Larissa Teles 
Published: January 2021

Objetivo: Analisar as principais formas de manejo multidisciplinar da demência frontotemporal na contemporaneidade. Métodos: Trata-se de uma revisão de literatura com busca bibliográfica realizada nas plataformas PUBMED, LILACS e SciELO. Foram utilizados os descritores “Demência Frontotemporal” e “Multidisciplinaridade”. Foram critérios de inclusão artigos publicados entre 2010 e 2020. Resultados: Para escolha do tratamento da demência frontotemporal deve-se avaliar os hábitos e o ambiente do paciente. A prática de atividades físicas leves, como caminhadas, musicoterapia e psicoterapia apresentaram resultados positivos na diminuição da sintomatologia. Apesar de psicoterapia, musicoterapia e incentivo a atividades físicas leves serem as principais abordagens utilizadas, outras condutas também devem ser incentivadas. A linguagem é um dos pontos que deve ser avaliado, já que é útil na monitorização dos pacientes e de seu tratamento. O tratamento multidisciplinar deve ser estendido para familiares e cuidadores das pessoas com demência frontotemporal. O programa de atividades personalizadas, que é baseado na terapia ocupacional, é uma das melhores formas de abordagem. Considerações Finais: Abordagens não farmacológicas, como psicoterapia, incentivo à prática de atividades físicas e musicoterapia são formas possíveis, atualmente, de cuidar dos pacientes com demência frontotemporal e de seus familiares.
Cesariana de gestante com placenta prévia e acretismo seguido de histerectomia devido sangramento maciço
Authors: Loureiro Renan Cesar , Benevides Márcio Luiz , Carrijo Lucas Guimarães , Ferreira Filipe Schwarz Godoy , Martins Luís Fernando Corrêa de Souza Augusto , Costa Ana Clara Carvalho , Ojeda Feliciano Vilela Borges , De Mattos Thamiris Pamela 
Published: January 2021

Objetivo: Relatar o caso de uma gestante multípara, com 3 cesáreas anteriores e diagnóstico de placenta prévia com acretismo submetida a cesariana seguido de histerectomia devido sangramento maciço. Detalhamento do Caso: Gestante, 36 anos, multípara, idade gestacional de 36 semanas e 5 dias, ultrassonografia evidenciando placenta percreta com suspeita de aderência vesical, sendo indicado interrupção por cesariana e histerectomia puerperal. No centro obstétrico, foram puncionados acessos venosos calibrosos e acesso venoso central. Optado por anestesia geral associado a peridural com monitorização de rotina além de pressão arterial invasiva, variação da pressão de pulso e monitor de bloqueio neuromuscular. No intraoperatorio, evolui com sangramento maciço e choque hipovolêmico, sendo necessário transfusão de 7 concentrados de hemácias, 4 plasmas fresco congelado, além do uso de droga vasoativa e fluidoterapia. Evoluiu favoravelmente com estabilidade hemodinâmica. Considerações Finais: O acretismo placentário figura entre um dos grandes desafios anestésicos e obstétricos, necessitando de um manejo cuidadoso. Aspectos como o adequado preparo do paciente, escolha do método anestésico mais seguro, bem como a otimização no tratamento são cruciais para minimizar o risco de morbimortalidade materna.