bluuebunny/crossref_metadata_2025_split huggingface dataset:
Characterization of Tensile Properties and Fracture Toughness of Equal Channel Angular Pressed Al-Zn Alloy
Authors: S Mohan kumar , Govindaraju H K , Kiran M D 
Published: June 2021

Abstract
Influence of Equal channel angular pressing on mechanical properties and Fracture toughness of Al-Zn alloy were studied in present investigation. Samples are successfully processed using the ECAP technique for up to a four passes by using route A. Al-Zn alloys were heated to a solid solution treatment temperature at 550oC for 2 hours prior to ECAP, this treatment introduces the precipitates which were capable of obstructing motions of dislocation and improves the refinement of the grain during ECAP process Finally, artificial ageing was performed at a temperature of 190°C for 0-20 hours with an interval of 2 hr and specimens are cooledat room temperature with natural air.Fracture toughness was found experimentally for ECAP processed samples using SE (B) specimens according to ASTM E399 standard.Study revealed the enhancement in mechanical properties such as yield strength, ultimate strength and microhardness after four passes by route A technique.The improvement in the fracture toughness properties of artificially aged ECAP samples can also be due to dislocation strengthening, grain boundary strengthening, and the creation of much finer UFG grains, according to the results. Despite the increased tensile strength after ECAP, the ductility behaviour has decreased due to the precipitation of GP zones and dispersion of η, ή, T and E within the Aluminium matrix Furthermore, scanning electron microscope (SEM) micrographs revealed that ductile fracture with large dimples occurred in the artificial aged samples after the ECAP procedure.
Humoral and cellular immune response against SARS-CoV-2 variants following heterologous and homologous ChAdOx1 nCoV-19/BNT162b2 vaccination.
Authors: Behrens Georg , Barros-Martins Joana , Hammerschmidt Swantje , Cossmann Anne , Odak Ivan , Stankov Metodi , Ramos Gema Morillas , Dopfer-Jablonka Alexandra , Heidemann Annika , Ritter Christiane , Friedrichsen Michaela , Schultze-Florey Christian , Ravens Inga , Bubke Anja , Ristenpart Jasmin , Janssen Anika , Ssebyatika George , Bernhardt Günter , Münch Jan , Hoffmann Markus , Pöhlmann Stefan , Krey Thomas , Bosnjak Berislav , Forster Reinhold 
Published: June 2021

Abstract
Cerebral venous thrombosis was reported as a rare but serious adverse event in young and middle-aged vaccinees following immunization with AstraZeneca’s ChAdOx1-nCov-19 vaccine. As a consequence, several European governments recommended using this vaccine only in individuals older than 60 years leaving millions of ChAd primed individuals with the decision to either receive a second shot of ChAd or a heterologous boost with mRNA-based vaccines. However, such combinations have not been tested so far. We used Hannover Medical School’s COVID-19 Contact (CoCo) Study cohort of health care professionals (HCP) to monitor ChAd primed immune responses before and three weeks after booster with ChAd or BioNTech/Pfizer’s BNT162b2. Whilst both vaccines boosted prime-induced immunity, BNT induced significantly higher frequencies of Spike-specific CD4 and CD8 T cells and, in particular, high titers of neutralizing antibodies against the B.1.1.7, B.1.351 and the P.1 variants of concern of severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2).
Haematological Indices and Obstetric Outcomes Among Pregnant Women with Preeclampsia at Iringa Regional Tanzania (14)
Authors: luyeko Salum , Mwampagatwa Proffesor Ipyana Hudson 
Published: June 2021

Abstract

Introduction

Preeclampsia is a common problem in pregnancy after 20 weeks of gestation age. This is when the systolic blood pressure is 140 and above and diastolic blood pressure is above 90mmhg with proteinuria. Hematological system is affected and can result into low platelets, low hemoglobin level, high packed cells volume, and reduced Red blood cells, this can result in bad obstetric outcome. This study aimed to assess the hematological indices in Preeclampsia and their maternal outcomes.
Objectives

Assessment of Hematological indices and maternal outcomes among women with Preeclampsia.
Material and methods

The study was conducted at Iringa Regional referral hospital, it was cross sectionals study. The sample size was 100 participants. Data were collected by using a well structured questionnaire which has been tested, the information’s collected. Full blood count investigation done in a cimex 300 machine.
Results

During the study above 18years of age 44% had diastolic above 160mmhg, 44% had platelets below 150, 31% had high hematocrit and 59% had low hemoglobin levels. Among the respondents 78% had bad maternal outcomes. Those with gestation age below 37 weeks are statistically significant with bad maternal outcomes; the blood loss above 500mls was statistically significant with the bad maternal outcomes
Conclusion

The finding of this study show that the preeclampsia and severe preeclampsia can result into changes in hematological indices and this can result into adverse obstetric outcomes. The study will help to Improve better care of the women with preeclampsia and reduce hospital stay.
Normalized unitary synaptic signaling of the hippocampus and entorhinal cortex
Authors: Moradi Keivan , Aldarraji Zainab , Luthra Megha , Madison Grey , Ascoli Giorgio A. 
Published: June 2021

Abstract
Limited experimental yield, heterogeneous recordings conditions, and ambiguous neuronal identification have so far prevented the systematic characterization of synaptic signals for all connections of any neural system. Introducing a novel strategy to overcome these challenges, we report the first comprehensive synaptic quantification among all known neuron types of the hippocampal-entorhinal network. First, we reconstructed > 2,600 synaptic traces from ~ 1,200 publications into a unified model of synaptic dynamics. We then trained a deep learning architecture with the resulting parameters, each annotated with detailed metadata. The model learned to predict the synaptic properties of all 3,120 circuit connections in arbitrary conditions with accuracy approaching the intrinsic experimental variability. Analysis of normalized data revealed that synaptic signals are controlled by few latent variables associated with specific molecular markers and interrelating conductance, kinetics, and short-term plasticity. We freely release the tools and full dataset of unitary synaptic values in 32 covariate settings via Hippocampome.org.
Radiation collector systems comparison in Contaminants of Emerging Concern degradation by solar heterogeneous photocatalysis
Authors: Granda-Ramirez Fidel , Barrera Melissa , Castrillon Sara , Rueda Lady , Pino-Arango Juan , Hincapie-Mejia Gina 
Published: June 2021

Abstract
Wastewater with Contaminants of Emerging Concern (CEC) can be generated from different sources as industry, agriculture and urban and hospital wastes. Heterogeneous Photocatalysis (HP) with TiO2 is one of the Advanced Oxidation Processes (AOPs) most suitable for water treatment with CEC. In this research, three CEC: Safranin T (SF), 2,4-dichlorophenoxyacetic acid (2,4-D) and Sulfacetamide (SAM) degradation was evaluated by solar-HP in a quartz wall reactor. First, 365 nm wavelength radiation was used and the best operating conditions was determined under the high flow and aeration configuration, obtaining a removal rate of 48.05% for SF, 11.64% for 2,4-D and 6.98 for SAM. Then, under these conditions, SF, SAM and 2,4-D degradation with solar lighting was made on 4 radiation collector systems configurations, Flat Plate Collector (FPC), V Collector (VC), Parabolic Collector (PC) and Compound Parabolic Cylinder Collector (CPC) until reaching the same value of accumulated energy (122.77 kJ m− 2) finding that the PC had the best performance in the treatment for the three pollutants. Finally, the Collector Impact Ratio Factor (CIRF) for the pollutants was calculated, achieving until 12 times degradation for SAM.
Do exposure to heavy metals mediate the associations between socioeconomic indicators and self-rated health among the US adult Populations: A Weighted Quantile Sum Mediation Approach
Authors: Rana Juwel , Renzetti Stefano , Islam Rakibul , Donev Metodi , Hu Kai , Oulhote Youssef 
Published: June 2021

Abstract
This study aimed to examine the associations between socioeconomic status (SES) and self-rated health (SRH) among US general adult populations and the extent to which blood and urinary metal mixtures explain these associations. We used 14 years of repeated cross-sectional data that consists of seven consecutive NHANES cycles from 2003-04 to 2015-16 (N = 9497). SRH was measured using a 5-point Likert scale, and SES was measured by Family Income to Poverty Ratio (FMPIR), levels of education, and employment status. Blood concentration of lead, mercury, and cadmium, and urinary concentrations of ten heavy metals (arsenic, barium, cadmium, cesium, cobalt, lead, mercury, molybdenum, thallium, tungsten) were used as metal mixtures. The total effects of SES on SRH were examined by linear regression. The direct effects of SES on metal mixtures were examined by weighted quantile sum (WQS) regression with Repeated Holdout Validation method, and causal mediation effect of mixtures was examined by model-based causal mediation technique. Results showed that SES (education β: 0.17; 95% CI: 0.15, 0.18; employment β: 0.16; 95% CI: 0.12, 0.21; and FMPIR β: 0.09; 95% CI: 0.08, 0.11) were positively, and the WQS indices of blood and urine metal mixtures (blood β: -0.04; 95% CI: -0.05, -0.03, urine β: -0.07; 95% CI: -0.13, -0.004) were significantly inversely associated with SRH in the US adult population. The novel finding was the mechanism between SES and SRH that exposure to heavy metals may explain socioeconomic inequalities in SRH in the US. Longitudinal studies are needed to corroborate this study results.
ANALISIS PENGARUH NILAI SAHAM YANG BEREDAR, STRUKTUR MODAL, RISIKO PASAR, DAN SUKU BUNGA TERHAD AP RETITRN SAHAM DI BEJ DENGAN PENDEKATAN MODEL DINAMIS (Studi Kasus Pada Sektor Aneka lndustri Tahun 1996-2002)
Authors: Christianti Ari , Lestari Murti 
Published: June 2021

The study aims at empirically proving and analyzing the balance model of Capital Asset Pricing Model (CAPM with the multifactor of risks, consisting of: outstanding stocks value, capital structure represented by Debt EquiQ Ratio (DER), market risk as represented by stock market beta, and the interest rate on company return on stock.This research uses a dynamic model approach considering the existence of the weaknessesin a classic linear model. Since the investment is related to investors behavior that need a lag to market change, the use of the dynamic model approach will be better. It is because the dynamic model uses autoregressive approach containing the lag. The dynamic model used here is Partial Adjustment Model (PAM) and Error Correction Model (ECM). Based on the estimation of the PAM model it is proven that the model is inefficient in finding the evidence confirming the hypothesis. Subsequently,based on the result of the examination of the ECM model it isconcluded that outstanding stocks value has a positive and signiJicant impact in short term and a negative impact in long term. It means that in the short term outstanding stocks value serves as the consideration for investors in making an investment. However in the long term they are likely to believe that the use of smaller internal capital proportion will be more beneficial for them. The capital structure has only a longierm impact on the return on stock. It means that the impact of DER on stock return on miscellaneous industry sector needs the quite long lag to influence the investors in determining stocks return. It indicates that in the long term they believ:e that the use of increasing number of loan will causes the decrease in company liquidity. Consequently, the opportunity for the company to go bankrupt is bigger Beta stock in the study has a negative impact in the long term. Theoretically, it is not consistent with the parameter direction and indicated that beta stock does notserve as an app;r,pviate prory in measuring the rislcs on. miscellaneous industry sector The interest rate has in the long term a negative impact on stocks return and needs the long lag to influence the investors in determining the return on stocks.Keywords: Stock return, outstanding stock value, DER (Debt Equity Ratio), beta, interest rote, ECM (Eruor Correction Model)
PENGARUH LEVERAGE; LIKUIDITAS, SAHAM PUBLIK DAN KOMITE AUDIT INDEPENDEN TERHADAP LUAS PENGUNGKAPAN SUKARELA DALAM LAPORAN Ta,TAl HlYUatNAN
Authors: Mujiyono Mujiyono , Nany Magdalena 
Published: June 2021

Company's aniual report is one of the information that connecting the company's management and their stockholders. The study about voluntary disclosure in an.annual report will provide some insight about disclosure practiees in Indonesian firms. The objective of this research was to give empirical evidence about the effects of leverage, liquidity,firm public own proportion and independent audit committee proportion on voluntary disclosure both partially and simultaneously. Seventy four companies were analyed by multiple regression analysis. The resul*show that leverage insigniJicantly hat positive effect on voluntarydisclosure. Liquidity also insignificantly has positive effect on voluntary diselosure. Butfirm publi own proportion insignificantly has negative effect on voluntary disclosure. Independent audit committee proportion also insigniJicantly has negative effect on voluntary disclosure. The result also show that leverage, liquidity, firm public own proportion and independent audit commitiee pioportion simultaneousiy have insignificant effect on voluntary disclosureKqwords: annual report, vol4ntary disclosure, leverage, tiquidity,finn public own proportion, independent audit committeeproportion
ANALISIS FAKTOR.FAKTOR YANG MEMPENGARUHI KOEFISIEN RESPON LABA PADA PERUSAHAAN MANUFAKTUR YANG TERDAFTAR DI BEJ
Authors: Tiolemba Noviyanti , Ekawati Erny 
Published: June 2021

\h;;;"d, is an empirical one wlnse purposes are to prove is beta risk; leverage, earning growth std size has intluence on to earnings response coeficient. Sampk which are used on this sntdy are 390 data of mmufacturing corporations in Indonesig. Ihe period of study is 1995-2004. There are two models used, first model to determining earnings response coefficient and second rnodel to testing factors which in/luence euningsresponse coefficient. Stotistic models which ue used are multipleregressions. The results are beta has negative effect on earnings response coefiicient, leverage has negative efiect on earnings response coefficient, eorning growth has positive inJluences to the earnings response coefficient atter being controlled by other variable and size has negative effect on eunings response coeficient.Kqtwords: Earnings Response Coeficient (ERC), Return, Unexpected Earning Per Share
PERTUMBUHAN MODAL SENDIRI PADA INDUSTRI MANUFAKTUR: STUDI EMPIRIS DI BURSA EFEK INDONESIA
Authors: Setyani Astuti Yuli 
Published: June 2021

Equity Growth is influenced by internal and external factors. Internal factor under control management, i.e. return on asset (ROA), dept to equity ratio (DER) retention rate (RR). The purpose of this study is to examine the effect of internal factors toward equity growth. Using financial data of campanies listed in Jakarta Stock Exchange (JSE) from the periods of 2004 to 2008, this study finds that return on asset influence equity growth. Meanwhile, Debt to Equity Ratio and Ratention Rate show no such effect. Kata kunci: Return On Asset, Debt to EquityRatio, Ratention Rate, Equity Growth
PENGARUH KARAKTERISTIK PERUSAHAAN DAN CORPORATE SOCIAL RESPONSIBILITY TERHADAP PENGHINDARAN PAJAK
Authors: Wardani Dewi Kusuma , Purwaningrum Ratri 
Published: June 2021

The aim of this study was to examine the effect of Profitability, Leverage, Sales Growth, and Corporate Social Responsibillity (CSR) on tax the period 2012-2016. The population in this study was food and beverage manufacturing companies that listed in Indonesia Stock Exchange (BEI) during 2012-2016. The research samples was determined by using purposive sampling technique, with predetermined criteria, so that obtained 8 food and beverage manufacturing companies that qualify as the samples. The indicators disclosure of CSR is using Global Reporting Initiative (GRI) guideline. The data that used in this study was obtained from secondary source. This study used multiple linear regression method as an analysis technique. The result of this research shows that the profitability and leverage have significant positive influence to the tax avoidance. Sales growth and CSR do not have significant influence to the tax avoidance.Keyword: Profitabillity, leverage, sales growth, CSR, and tax avoidance ABSTRAKPenelitian ini bertujuan untuk menguji pengaruh profitabilitas, leverage, pertumbuhan penjualan, dan Corporate Social Responsibillity (CSR) terhadap penghindaran pajak pada periode 2012-2016. Populasi dalam penelitian ini adalah perusahaan manufaktur makanan dan minuman yang terdaftar di Bursa Efek Indonesia (BEI) selama periode 2012-2016. Sampel penelitian ditentukan dengan teknik purposive sampling, dengan kriteria yang telah ditentukan, sehingga diperoleh 8 perusahaan manufaktur makanan dan minuman yang memenuhi syarat sebagai sampel. Indikator pengungkapan CSR menggunakan pedoman Global Reporting Initiative (GRI). Data yang digunakan dalam penelitian ini diperoleh dari data sekunder. Teknik analisis pada penelitian ini menggunakan metode regresi linier berganda. Hasil penelitian ini menunjukkan bahwa profitabilitas dan leverage berpengaruh positif signifikan terhadap penghindaran pajak. Pertumbuhan penjualan dan CSR tidak berpengaruh signifikan terhadap penghindaran pajak.Kata kunci : Profitabilitas, leverage, pertumbuhan penjualan, CSR, dan penghindaran pajak
FAKTOR MINAT BELI KONSUMEN PADA KARTU PRA BAYAR TELKOMSEL AS DAN PRA BAYAR INDOSAT IM3 DI YOGYAKARTA
Authors: Andi Stafanus , Santoso Singgih 
Published: June 2021

ABSTRACT Research purposes is to identify factors that forms Telkomsel AS and Indosat IM3 purchase intention. Using survey as a data collection method, a questionnaire was distributed to respondents whose using Telkomsel AS and Indosat IM3 with purposive random sampling method. Data analysis tools are factor analysis. Results show that there four five factors that significantly form Telkomsel AS purchasing decisions, i.e access and servicesfactor, product factor, advertising and perception factor, and promotion and pricing factor. Meanwhile, there are two factors that form IM3 purchase intention, i.e information, promoiton, and product factor, and accessand quality factor. Keywords: marketing mix, factor analysis, purchase intention ABSTRAK Tujuan penelitian untuk mengetahui faktor-faktor apa saja yang membentuk minat beli seorang pengguna jasa telekomunikasi Telkomsel AS dan Indosat IM3.Pengumpulan data menggunakan kuesioner yang disebar pada sejumlah responden untuk kedua jenis kartu dengan menggunakan metode purposive random sampling.Metode analisis data yang digunakan adalah analisis faktor. Hasil penelitian menunjukkan kartu TelkomselAS memiliki empat faktor terbentuk yang berpengaruh secara positif dan signifikan terhadap minat beli konsumen, yaitu faktor pelayanan dan akses, faktor produk, persepsi dan iklan, faktor harga dan promosi, dan faktor keluarga.Sementara itu, pada IndosatIM3 terdapat dua faktor terbentuk, yakni faktor produk, promosi dan informasi, dan faktor kualitas dan akses. Kata kunci: bauran pemasaran, analisis faktor, minat pembelian
FAKTOR-FAKTOR YANG MENDORONG PERILAKU GETOK TULAR DI MEDIA SOSIAL
Authors: Widya Pramatatya Resindra 
Published: June 2021

This study aims to examine the role of social media as a means of electronic word of mouth. The variables studied in this study are customer satisfaction and customer involvement as antecedents and repurchase intentions as a consequence variable (Consequences). The sample in this study amounted to 206 respondents spread in Yogyakarta, Central Java, West Java, East Java, Bali, and Ambon with surveys conducted in a connected and unrelated. Hypothesis testing is done by multiple regression analysis and simple regression analysis. The results of this study suggest that in the Indonesian context, customer satisfaction does not affect the act of social media and customer involvement have a positive and significant effect on electronic act of speech through social media. Electronic speech act through social media has a positive effect on repurchase intentions.Keywords: social media, electronic word of mounth, repeat purchase, regression ABSTRAKPenelitian ini bertujuan untuk menguji peran media sosial sebagai sarana getok tular elektronik. Variabel yang diteliti dalam penelitian ini adalah kepuasan pelanggan dan keterlibatan pelanggan sebagai anteseden dan niat membeli kembali sebagai variabel konsekuensi (Konsekuensi). Sampel dalam penelitian ini berjumlah 206 responden yang tersebar di Yogyakarta, Jawa Tengah, Jawa Barat, Jawa Timur, Bali, dan Ambon dengan survei yang dilakukan secara terhubung dan tidak terkait. Pengujian hipotesis dilakukan dengan analisis regresi berganda dan analisis regresi sederhana. Hasil penelitian ini menunjukkan bahwa dalam konteks Indonesia, kepuasan pelanggan tidak mempengaruhi tindakan media sosial dan keterlibatan pelanggan memiliki pengaruh positif dan signifikan terhadap tindak tutur elektronik melalui media sosial.Kata Kunci: media sosial, getok tular elektronik, pembelian ulang, regresi
PENGARUH PERSEPSI KEMUDAHAN DAN PERSEPSI KEMANFAATAN TERHADAP MINAT BELI SECARA ONLINE
Authors: Nurmalia Vera Desy , Wija Lilis Endang 
Published: June 2021

Nowadays Online buying behavior is growing rapidly. Based on ICD, online market in Indonesia increases 42% during 2012-2015. This study analyze factors that influence consumers to buy through online mode of transaction. The researcher is interested in testing the impact of perception of the Ease and utility of online transaction system on consumer buying intention. Furthermore, it is predicted that the higher consumers’ perception on ease and utility oof online buying mechanism, the higher the probability that consumers will buy through online transaction system. The sample size is 223 respondents. We apply PSAW statisctic software. The results imply that consumers’ perception on the benefit of online transaction system influences their buying intention. While, the consumers’ perception on the ease of online system transaction does not influence their buying intention.Keyword: Online Buying Intention, Perceived Ease of Use, Motivation dan Risk Perception. ABSTRAKPembelian online berkembang pesat saat ini. Berdasarkan data ICD, pasar online di Indonesia tumbuh 42% selama 2012-2015. Pertumbuhan yang cepat ini tentu sangat menarik untuk dipelajari. Penelitian ini akan menganalisis faktor-faktor yang mempengaruhi konsumen untuk membeli secara online. Faktor yang diteliti adalah persepsi konsumen tentang manfaat pembelian online, motivasi konsumen untuk membeli online dan kesadaran akan risiko pembelian online. Penelitian dilakukan pada siswa di Yogyakarta. Responden yang terlibat dalam penelitian ini adalah 223 orang. Data diperoleh dengan menggunakan statistik PSAW. Hasil penelitian menunjukkan bahwa persepsi manfaat dan motivasi mempengaruhi minat beli online sementara kesadaran risiko tidak mempengaruhi minat beli online.Kata kunci: Niat Membeli Online, Persepsi Kemudahan Penggunaan, Motivasi, dan Persepsi Risiko