bluuebunny/crossref_metadata_2025_split huggingface dataset:
ASSESSING THE FACTORS CAUSING PROJECT COMPLETION DELAYS IN THE CONSTRUCTION SECTOR OF OMAN USING SEM-PLS
Authors: Suleiman Al Maktoumi Iman , Rahman Khan Firdouse , Rashid Suwied Al Maktoumi Ahmed 
Published: June 2020

Purpose: The objectives of the study were to investigate the causes of the delays to analyze the factors causing the construction delay in Oman and to investigate the effects of such delays.
Design/methodology/approach: To carry out this study 210 samples were collected through a well-defined questionnaire from the construction stakeholders viz. the consultants, contractors, and the clients who were selected on a random sampling basis. Smart PLS for Structural Equation Modeling (SEM) technique was used to analyze the data to obtain the formative measurement models, the structured model, and the goodness of fit.
Findings: The results of the study reveal that the client-related factors, equipment-related factors, and material related factors have a significant impact on the completion delay in construction projects. The findings of the study also revealed that the Client related factors were – Delay in providing services, Delayed decision-making process, Allocation of insufficient time. Equipment related factors were – Existing low productive equipment, Unskillful Equipment operator, Breakdown of equipment and Outdated equipment; Material related factors were – Delay in supply of raw materials, Non-availability of materials, Change of materials during construction, Non-availability of accessories and Damaged materials.
Research limitations/Implications: The present study covers the stakeholders of the construction projects from selected regions only. The future studies can be extended to other projects and other regions as well.
Social implications: The study suggested that the clients’ cooperation especially in providing the contractors with the necessary equipment, facilities, and sufficient time will avoid such delays of the construction projects in Oman.
Originality/Value: Only very few have examined the completion delay of the construction projects in Oman using SEM-PLS and it is a first-hand study of its kind and the results will be useful to the stakeholders.
STOCHASTIC MODELING OF LIVING/CONTROLLED COPOLYMERIZATIONS IN TUBULAR REACTORS WITH LATERAL FEED
Authors: Carvalho Matheus Dias de , Lemos Tiago Silva Miranda , Bellido Jorge David Alguiar , Siqueira Antonio Marcos de Oliveira 
Published: June 2020

It is known the controlled microstructure polymers production increase in continuous reactors due to all industrial advantages that this type of operation presents. In this paper, the synthesis via Nitroxide-Mediated Polymerization (NMP) of copolymers based on styrene and methyl methacrylate accomplished in a tubular reactor with lateral feed is modeled by Kinect Monte Carlo (kMC). This reactional configuration aims the copolymers production with originals microstructure and applications. There were obtained all the microstructural properties distributions of the synthesized material at interest and the conversion values, Polydispersity Index (PDI) and chains average molar mass are compared to experimental data. The conversion presented minimum and maximum deviation in the module of 0.61 and -21.85%, respectively. For the PDI and the molar mass, there were obtained minimum and maximum errors of 0.72%, 1.50%, -23.10% and 1.77%, respectively. It was verified that the formed product differed from the expected one in experiments. There were found copolymers of polystyrene-b-poly(methyl styrene-rand-methacrylate), not being found any region that presented composition gradient through the chains, differently than it had been foreseen in the experimental synthesis, results that show the relevance of a stochastic simulation in the process to make decisions in the context of polymer reaction engineering.
Analiza sytuacji zawodowej funkcjonariuszy Państwowej Straży Pożarnej
Authors: Musiał Kornel 
Published: June 2020

Poczucie bezpieczeństwa jest jedną z głównych potrzeb człowieka. Pomimo rozwoju cywili-zacyjnego i postępującej urbanizacji w XXI wieku jednostki narażone są na wiele zagrożeń, które muszą być skutecznie niwelowane przez grupy dyspozycyjne społeczeństwa polskiego i ich profe-sjonalnie przygotowaną do tego kadrę. Autor charakteryzuje Państwową Straż Pożarną, czyli para-militarną formację systemu bezpieczeństwa państwa. Ukazuje jej bogatą, lecz zawiłą historię, a na-stępnie opisuje społeczny wzór strażaka. Drugą część artykułu jest analiza badań ilościowych. Autor weryfikuje poziom satysfakcji strażaków z wykonywanej przez nich roli zawodowej.
Przydatność perspektywy biograficznej w badaniu grup dyspozycyjnych
Authors: Fiternicka-Gorzko Magdalena 
Published: June 2020

Artykuł jest próbą oceny przydatności wywiadów biograficznych w badaniu funkcjonowania grup dyspozycyjnych. Przedstawiono w nim argumenty ogólnoteoretyczne na rzecz stosowania perspektywy biograficznej w tego rodzaju analizach oraz ich ilustrację empiryczną odwołującą się do konkretnego wywiadu. Rekomendowana perspektywa pozwala pozyskać dane trudne do uzy-skania w inny sposób, pozwala zneutralizować niektóre trudności związane z badaniem w trudnym terenie badawczym i dostarcza materiału do formułowania płodnych hipotez.
Cyfrowy wyścig zbrojeń w erze ekspansji kapitalizmu nadzoru
Authors: Gurtowski Maciej 
Published: June 2020

Amerykańska psycholog społeczna Shoshana Zuboff w swojej najnowszej książce The Age of Surveillance Capitalism nakreśliła kompleksową teorię tłumaczącą przemiany współczesnego ka-pitalizmu. Nazwała go „kapitalizmem nadzoru”, wskazując na kluczową rolę przemian w zakre-sie narzędzi kontroli społecznej. Celem niniejszego referatu jest uzupełnienie koncepcji „kapita-lizmu nadzoru” o wymiar wpływu opisywanych przez Zuboff procesów na sferę bezpieczeństwa. Rozważona zostanie hipoteza, że tak jak kapitalizm przemysłowy określał warunki brzegowe zim-nowojennego wyścigu zbrojeń, tak samo kapitalizm nadzoru Zuboff z koncepcji można interpreto-wać jako koło zamachowe procesu cyfrowego wyścigu zbrojeń.
CO2/N2 Separation by Supported Ionic Liquid Membranes Based on Tubular Ceramic Support Impregnated with Selected Ionic Liquid
Authors: Ziobrowski Zenon , Rotkegel Adam 
Published: June 2020

The separation of CO2/N2 by supported ionic liquid membranes (SILMs) is presented. SILMs have been developed by impregnation of the ceramic support nanopores of commercial PDMS (polidimethylosiloxane) membranes (made by Pervatech BV) and commercial microfiltration membranes (made by Inopor) with 1-ethyl-3-methylimidazolium acetate ([Emim][Ac]). Comparison of separation efficiency of SILMs prepared on the same ceramic support shows that SILMs based on PDMS membranes show good stability and very high CO2/N2 selectivity. Yhe obtained results present an inexpensive alternative in selective CO2/N2 separation by SILMs, especially when the choice of selectivity is the first priority. The comparison with Robeson upper bond correlation and literature data shows that applying the ionic liquid and appropriate impregnating method to the PDMS membranes results in significant improvement of separation performance.
A New Approach to the Total Synthesıs of (±)-Nordasycarpıdone by Rıng-closure wıth Tetrachloro-1,4-benzoquınone
Authors: Uludag Nesimi 
Published: June 2020

A new synthetic route for the (±)-nordasycarpidone was achieved in five steps with an overall yield of 41%. This route involves ring closure and formation of 5 which has a methanoazocino[4,3-b]indole skeleton in the key step. The reaction also involved a cyclization reaction of tetrahydrocarbazole with a monoalkyl nitrile side chain at the C-2 position, and this reaction was mediated by tetrachloro-1,4-benzoquinone (TCB). The central step in the synthesis was the closure of the D-ring of the intra-molecular structure and the addition of amine, which resulted in an aza-tetracyclic substructure that contained the ABCD-ring of the strychnos alkaloid family.
PEMBERDAYAAN MASYARAKAT HIMPUNAN PENDUDUK PENGGUNA AIR MINUM (HIPPAM) DI DESA BALONGDOWO DAN DESA PUTAT, SIDOARJO, JAWA TIMUR
Authors: Hardaningrum Farida , Kristiana Wiwin Agus , Wulandari Ani 
Published: June 2020

Permasalahan sumber daya air terjadi di wilayah Kabupaten Sidoarjo. Banyaknya industri dan indikasi terjadinya intrusi air laut di berbagai daerah membuat Kabupaten Sidoarjo mengalami ancaman permasalahan air bersih yang cukup serius. Untuk itu pemerintah berupaya membentuk komunitas yaitu Himpunan Penduduk Pengguna Air Minum (HIPPAM) yang merupakan wadah bagi masyarakat dalam upaya meningkatkan kualitas pelayanan kepada warga dari kekurangan dan keterbatasan terhadap air minum/air bersih. Permasalahan utama puluhan HIPPAM yang telah terbentuk di kabupaten Sidoarjo adalah, kurangnya kesadaran masyarakat dalam memanfaatkan air bersih yang telah disediakan oleh pemerintah daerah, kurang mampunya masyarakat berpenghasilan rendah dalam menanggung biaya pemasangan sambungan rumah (SR) serta kurang terampilnyapengurus HIPPAM dalam mengelola administrasi organisasi. Program PKM Himpunan Penduduk Pengguna Air Minum (HIPPAM) Desa Balongdowo dan Desa Putat Kecamatan Tanggulangin, Sidoarjo, Jawa Timur menawarkan solusi yang diharapkan dapat dilaksanakan oleh mitra kegiatan, yaitu warga desa Balongdowo dan desa Putat. Adapun metode pelaksanaannya adalah: pertama memberikan penyuluhan tentang pentingnya pemanfaatan air bersih untuk kehidupan sehari- hari, kedua memberikan sebuah metode penjernihan air dan ketiga dengan memberikan pelatihan manajemen pengelolaan HIPPAM sebagaimana layaknya sebuah lembaga yang dapat memberi keuntungan dan masukan bagi kas desa. Program ini juga bertujuan membantu masyarakat berpenghasilan rendah untuk mendapatkan sambungan rumah dari sumber air HIPPAM, serta melaksanakan pemantauan terhadap air HIPPAM desa Balongdowo dan desa Putat yang berasal dari sumur artesis, baik dalamsegi kualitas maupun kuantitasnya. Dari program ini juga diharapkan pengurus dapat mengelola organisasi HIPPAM dengan baik dan profesional.
ASSESSORIA DE IMPRENSA E O RELACIONAMENTO COM OS JORNALISTAS DE TV
Authors: Correia Clifton Morais , Porto Junior Francisco Gilson Rebouças 
Published: June 2020

Esta pesquisa traz uma breve discussão sobre as expectativas dos assessorados sobre seus assessores no que se refere ao desenvolvimento de suas atividades, a ética e linha editorial de cada empresa, seja ela de assessoria ou das organizações dos jornais. A pesquisa foi desenvolvida abordando as características dos profissionais que desempenham as funções de assessor de imprensa e as de produtores de TV. Além disso, foi feita uma abordagem entre o significado de deadline, releases e como deve ser o relacionamento dos assessores com os profissionais de TV, relacionamento esse aliado às necessidades diárias de divulgação de informações o mais exatas possível.

PALAVRAS-CHAVES: Jornalismo; Assessoria de Imprensa; Jornalistas; Empresas jornalísticas.

ABSTRACT
This research brings a brief discussion about the expectations of the advisors about their advisors with regard to the development of their activities, the ethics and editorial line of each company, be it advisory or the organizations of newspapers. The research was developed addressing the characteristics of the professionals who perform the functions of press officer and those of TV producers. In addition, an approach was taken between the meaning of deadline, releases and how the relationship between advisors and TV professionals should be, a relationship that allied to the daily needs of disclosing information as accurately as possible.

KEYWORDS: Journalism; Press office; Journalists; Newspaper companies.

RESUMEN
Esta investigación trae una breve discusión sobre las expectativas de los asesores sobre sus asesores con respecto al desarrollo de sus actividades, la ética y la línea editorial de cada empresa, ya sea de asesoramiento u organizaciones de periódicos. La investigación se desarrolló abordando las características de los profesionales que desempeñan las funciones de responsable de prensa y las de los productores de televisión. Además, se adoptó un enfoque entre el significado de la fecha límite, los comunicados y cómo debería ser la relación entre asesores y profesionales de la televisión, una relación que se alió a las necesidades diarias de revelar información con la mayor precisión posible.

PALABRAS CLAVE: Periodismo; Oficina de prensa; Periodistas Compañías de periódicos.
Antioxidant activity of selected parts of Prunus domestica L. harvested at two ripening stages
Authors: Nowak Anna , Szatan Dominika , Zielonka-Brzezicka Joanna , Florkowska Katarzyna , Muzykiewicz Anna , Klimowicz Adam 
Published: June 2020

Abstract

Introduction: Oxidative stress caused by an excess of reactive oxygen species (ROS) is the main reason behind many civilization diseases. The fruits and leaves of Prunus domestica L. contain antioxidants such as vitamins, polyphenols (including flavonoids) and organic acids.
The aim of the study was to evaluate the antioxidant activity and total polyphenol content of extracts of leaves and fruits of the plum harvested in 2 ripening phases.

Materials and methods: Antioxidative activity was measured by 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) – ABTS methods, and total polyphenol content by Folin–Ciocalteu technique. Extracts in 40%, 70% and 96% (v/v) of ethanol as well as 99.8% (v/v) methanol were used. Ultrasound-assisted extraction was applied for 15, 30 and 60 min.

Results: The antioxidant potential of the extracts, measured by DPPH method, was highest for leaf methanolic extracts of plum harvested before ripening (3.83 ±0.01 mg trolox/g of raw material), while for the ABTS method, highest activity was found in the fruit peel extract in methanol (12.89 ±0.04 mg trolox/g raw material). The highest polyphenol levels (5.89 ±0.16, 6.06 ±0.09 and 5.76 ±0.13 mg gallic acid/g raw material) were found in the extracts of leaves harvested at fruit ripening stage, prepared in 70% (30 and 60 min) ethanol and 40% ethanol (60 min), respectively.

Conclusion: The alcohol based extracts from the leaves and fruit of Prunus domestica L. were characterized by high anti-oxidant potential, which suggests the possibility of their use as a valuable source of antioxidants. Ethanol seems to be the most appropriate extractant.
How methodological frameworks are being developed: Evidence from a scoping review
Authors: McMeekin Nicola , Wu Olivia , Germeni Evi , Briggs A 
Published: June 2020

Abstract
Background Although the benefits of using methodological frameworks are increasingly recognised, to date, there is no formal definition of what constitutes a ‘methodological framework’, nor is there any published guidance on how to develop one. For the purposes of this study we have defined a methodological framework as a structured guide to completing a process or procedure. This study’s aims are to: (a) map the existing landscape on the use of methodological frameworks; (b) identify approaches used for the development of methodological frameworks and terminology used; and (c) provide suggestions for developing future methodological frameworks. We took a broad view and did not limit our study to methodological frameworks in research and academia. Methods A scoping review was conducted, drawing on Arksey and O’Malley’s methods and more recent guidance. We systematically searched two major electronic databases (MEDLINE and Web of Science), as well as grey literature sources and the reference lists and citations of all relevant papers. Study characteristics and approaches used for development of methodological frameworks were extracted from included studies. Descriptive analysis was conducted.Results We included a total of 30 studies, representing a wide range of subject areas. The most commonly reported approach for developing a methodological framework was ‘Based on existing methods and guidelines’ (66.7%), followed by ‘Refined and validated’ (33.3%), ‘Experience and expertise’ (30.0%), ‘Literature review’ (26.7%), ‘Data synthesis and amalgamation’ (23.3%), ‘Data extraction’ (10.0%), ‘Iteratively developed’ (6.7%) and ‘Lab work results’ (3.3%). There was no consistent use of terminology; diverse terms for methodological framework were used across and, interchangeably, within studies.Conclusions Although no formal guidance exists on how to develop a methodological framework, this scoping review found an overall consensus in approaches used, which can be broadly divided into three phases: (a) identifying data to inform the methodological framework; (b) developing the methodological framework; and (c) validating, testing and refining the methodological framework. Based on these phases, we provide suggestions to facilitate the development of future methodological frameworks.Trial registration: Not applicable
Prevalence and associations of active trachoma among rural preschool children in Wadla district, northern Ethiopia
Authors: Kassaw Mesfin Wudu , Abebe Ayele Mamo , Tegegne Kirubel Dagnaw , Getu Mikiyas Amare , Bihonegn Woldemichael Tadesse 
Published: June 2020

Abstract
Background: Trachoma is a neglected eye disease and an important cause of preventable corneal blindness. In endemic areas, initial infection can occur in early childhood and following recurrent episodes, it progresses to scarring and visual impairment. Trachoma disappeared from developed countries through enhancements of hygiene and sanitation but the disease is still a challenge in developing countries. In Ethiopia, data indicate that Amhara is the region with the highest prevalence of active trachoma. The aim of this study was to assess the prevalence and associations of active trachoma among rural preschool children in Wadla district, Amhara region, Ethiopia.Methods: In this study, 596 children were screened for signs of active trachoma by using cluster-sampling technique. Following pre-testing of the survey instrument in a different district, questions about socio-demographic status were delivered for heads of households. Integrated eye care workers, previously trained to undertake trachoma screening for one month, performed eye examination. The logistic regression model was used to look for associations of active trachoma.Results: The prevalence of active trachoma among rural preschool children in Wadla district was 22%. Low economic status (adjusted odds ratio [AOR] 3.8 (95% CI 1.3–11.4), being 37– 48 months old (4.2; 1.5–12.0), living in a house with thatched roof (4.4;1.4–13.6), presence of flies in a home (4.6;2.1–9.9), once-weekly face-washing frequency (8.6;2.5–29.3), having a face that had not been washed for longer than a week (10.6;2.9–37.7), and not using soap (4.5;1.8–11.3) had association to active trachomaConclusion: The prevalence of active trachoma among rural pre-school children in Wadla district was high. This indicates that Trachoma is still a public health problem in the district. This high prevalence calls for further interventions to prevent future trachomatis blindness.
Genome-wide identification and characterization of multiple C2 domains and transmembrane region proteins in Gossypium hirsutum
Authors: Hao Pengbo , Wang Hantao , Ma Liang , Wu Aimin , Chen Pengyun , Cheng Shuaishuai , Wei Hengling , Yu Shuxun 
Published: June 2020

Abstract
Background: Multiple C2 domains and transmembrane region proteins (MCTPs) may act as transport mediators of other regulators. Although increased number of MCTPs in higher plants implies their diverse and specific functions in plant growth and development, only a few plant MCTPs have been studied and no study on the MCTPs in cotton has been reported.Results: In this study, we identified 31 MCTPs in G. hirsutum, which were classified into five subfamilies according to the phylogenetic analysis. GhMCTPs from subfamily V exhibited isoelectric points (pIs) less than 7, whereas GhMCTPs from subfamily I, II, III and IV exhibited pIs more than 7.5, implying their distinct biological functions. In addition, GhMCTPs within subfamily III, IV and V exhibited more diverse physicochemical properties, domain architectures and expression patterns than GhMCTPs within subfamily I and II, suggesting that GhMCTPs within subfamily III, IV and V diverged to perform more diverse and specific functions. Analyses of conserved motifs and pIs indicated that the N-terminus was more divergent than the C-terminus and GhMCTPs’ functional divergence might be mainly contributed by the N-terminus. Furthermore, yeast two-hybrid assay indicated that the N-terminus was responsible to interact with target proteins. Phylogenetic analysis classified multiple N-terminal C2 domains into four subclades, suggesting that these C2 domains performed different molecular functions in mediating the transport of target proteins.Conclusions: Our systematic characterization of MCTPs in G. hirsutum will provide helpful information to further research GhMCTPs’ molecular roles in mediating other regulators’ transport to coordinate growth and development of various cotton tissues.
Profit distribution and managers’ behaviour in vertical integrated medical delivery systems – An experimental economics study
Authors: Bo Yunque , Qi Miaojie , Liu Siyu , Cui Jiyu , Han Youli 
Published: June 2020

Abstract
Background: The vertical integration of medical delivery systems (VIMDSs) is a reform direction both in China and worldwide. We conducted a controlled economic experiment to explore decision-making by managers of medical institutions with respect to profits and what influences the distribution mechanism in VIMDSs.Methods: Students and hospital staff were recruited to make choices regarding the role of directors of institutions. z-Tree software was used to design the experimental program. Ninety-six subjects participated in the experiment. We gathered 479 valid contracts.Results: Of the subjects, 66.39% chose flexible contracts. The median of the bidding distribution rate to community health service centres of all auctions was 18.50%. The final distribution rate was approximately 3 percentage points higher than the bidding distribution rate. The median effort level was 9.00. There was a significant correlation between the improvement rate and the choice of effort level (P＜0.05) in flexible contracts.Conclusions: Hospital managers have a preference for flexible contracts because of uncertainty in the medical system. A community health service centre director may behave perfunctorily by engaging in shading in the integration. Flexible contracts and sharing rates beyond the participants’ expectations motivate managers to engage in more cooperative behaviours.