bluuebunny/crossref_metadata_2025 huggingface dataset:
BLENDED LEARNING IN FRENCH INTERMEDIATE GRAMMAR LEARNING: IS IT EFFECTIVE?
Authors: Lumban Tobing Roswita , Pranowo Dwiyanto Djoko
Published: October 2020

The use of blended learning in foreign language instruction such as French has been widely practiced by teachers in many countries, including Indonesia. As French for Indonesian is somehow not an easy subject to learn, the blended learning has not been widely implemented. In this regard, the aim of this study was to investigate whether there could be an improvement in the quality of learning when blended learning in French Intermediate Grammar courses for Indonesian was applied. An embedded mixed method design consisting of quantitative and qualitative approaches was used to analyse the collected data in this research, where the main method was quasi-experiment using the pretest-posttest design.  This study was conducted in one semester in seven synchronization activities. Data were collected by tests, questionnaires and observation sheets from 37 students taking French intermediate grammar course as the research respondents. The tests were reliable (Alpha Cronbach = .925). Moreover, the results showed that there were significant improvements among students, thus suggesting that blended learning can maximize the quality of learning (sig. < .05). The qualitative data informs that students were more independent in developing their creativity, autonomy and innovation in managing blended learning, hence the learning outcome was achieved.
STUDENT'S CONCEPTS OF AND APPROACHES TO LEARNING AND THE RELATIONSHIPS BETWEEN THEM
Authors: Alkhateeb Mohammad Ahmad , Bani Milhem Osamah Abdel Qader
Published: October 2020

The study attempted to characterize students’ conceptions of learning and approaches to learning and revealing the correlation between the students’ concepts and approaches to learning. The researchers used qualitative content analysis and a descriptive approach. The study population comprised 90 male and female students of the Faculty of Educational Science in the HU University, Jordan, during the 2019/2020 academic year. The quantitative concepts were dominating among students (87.77%), especially the concept of learning as a knowledge increase (33.33%). On the other hand, the qualitative concepts of learning were low (12.22%), especially on the person change (2.22%). In addition, there was an emergence of a new concept of learning outside the traditional concepts, namely learning as exam preparation. The results showed that the deep approach to learning was low, and the surface approach to learning was high. The results further showed a correlation between the quantitative concepts of learning and the surface approach to learning, as well as a correlation between the qualitative concepts of learning the deep approach to learning. Hence, the general conclusion implies that if teachers are to place learners at the heart of the learning process, they must be aware of the concepts of learning and learning approaches of the students.
Needs analysis to develop teaching materials at Vocational College UGM
Authors: Sari Yohana Ika Harnita , Wienanda Wahyu Kartika , Nugraheni Nur Endah
Published: October 2020

Bahasa Inggris I is a compulsory subject for all study programs at Vocational College, Universitas Gadjah Mada. In its implementation, the teaching materials used have not been completely tailored to the needs of the stakeholders in relation to the competence and skills of the English language. Therefore, this research aims to analyze the English competence and skills needed by the stakeholders and also students’ perception of good teaching materials from various study programs at Vocational College UGM. The methods used in collecting data are questionnaire and interview. The questionnaire is distributed to the first semester students from all applied bachelor programs in Vocational College UGM using stratified random sampling method. In addition, the interview is done with all heads of applied bachelor programs in Vocational College UGM for triangulation. The results show that the students are in the beginner level or basic users (A2 level in Common European Framework of Reference for Languages or CEFR). Moreover, the competences stated in the A2 level are considered needed by the students to master in academic and work life contexts. Besides, the skill considered as the most important is speaking, followed by writing. The students also propose some criteria of good teaching materials that include the content, sequence, exercise, language features, technology, layout, and price.
The competency of lecturers as supervisors of the final paper in the Office Administration study program of Universitas Indonesia
Authors: Sancoko Sancoko
Published: October 2020

This study aims to explain the competence of lecturers as a supervisor for the final paper in the Office Administration program, Universitas Indonesia. This research approach used is a quantitative method; which focuses on the use of numbers, tables, and graphs to display the results of the data obtained. To obtain data, the authors distribute questionnaires with several questions to the object of research. The population in this research is the class student 2016 of the office administration program who worked on the final paper(TKA). Four aspects of competency were tested in this study: Pedagogical Competence, Professional Competence, Social Competence & Personality Competence. Based on the results of the study, can be concluded that lecturers Prodi Adm Perkantoran UI as supervisor the final paper in categorized competent.
Patient Perspectives on Health Data Privacy and Implications for Adverse Drug Event Documentation and Communication: Qualitative Study
Authors: Small Serena S , Hohl Corinne M , Balka Ellen
Published: October 2020

Background

Adverse drug events are unintended and harmful effects of medication use. Using existing information and communication technologies (ICTs) to increase information sharing about adverse drug events may improve patient care but can introduce concerns about data privacy.

Objective

This study aims to examine the views of patients and their caregivers about data protection when using ICTs to communicate adverse drug event information to improve patient safety.

Methods

We conducted an exploratory qualitative study. A total of 4 focus groups were held among patients who had experienced or were at risk of experiencing an adverse drug event, their family members, and their caregivers. We recruited participants through multiple avenues and iteratively analyzed the data using situational analysis.

Results

Of the 47 participants recruited, 28 attended our focus groups. We identified 3 primary themes. First, participants felt that improved information sharing about adverse drug events within their circle of care would likely improve care. Second, participants were concerned about data handling and inappropriate access but believed that the benefits of information sharing outweighed the risks of privacy breaches. Finally, participants were more concerned about data privacy in the context of stigmatized health conditions.

Conclusions

Current conditions for maintaining health data privacy are consistent with participants’ preferences, despite the fact that health data are susceptible to breaches and mismanagement. Information sharing that increases patient safety may justify potential privacy risks. Greater attention to patient concerns and the effect of social and contextual concerns in the design and implementation of health information technologies may increase patient confidence in the privacy of their information.
User Perceptions and Experiences of an Interactive Voice Response Mobile Phone Survey Pilot in Uganda: Qualitative Study
Authors: Tweheyo Raymond , Selig Hannah , Gibson Dustin G , Pariyo George William , Rutebemberwa Elizeus
Published: October 2020

Background

With the growing burden of noncommunicable diseases in low- and middle- income countries, the World Health Organization recommended a stepwise approach of surveillance for noncommunicable diseases. This is expensive to conduct on a frequent basis and using interactive voice response mobile phone surveys has been put forth as an alternative. However, there is limited evidence on how to design and deliver interactive voice response calls that are robust and acceptable to respondents.

Objective

This study aimed to explore user perceptions and experiences of receiving and responding to an interactive voice response call in Uganda in order to adapt and refine the instrument prior to national deployment.

Methods

A qualitative study design was used and comprised a locally translated audiorecorded interactive voice response survey delivered in 4 languages to 59 purposively selected participants' mobile phones in 5 survey rounds guided by data saturation. The interactive voice response survey had modules on sociodemographic characteristics, physical activity, fruit and vegetable consumption, diabetes, and hypertension. After the interactive voice response survey, study staff called participants back and used a semistructured interview to collect information on the participant’s perceptions of interactive voice response call audibility, instruction clarity, interview pace, language courtesy and appropriateness, the validity of questions, and the lottery incentive. Descriptive statistics were used for the interactive voice response survey, while a framework analysis was used to analyze qualitative data.

Results

Key findings that favored interactive voice response survey participation or completion included preference for brief surveys of 10 minutes or shorter, preference for evening calls between 6 PM and 10 PM, preference for courteous language, and favorable perceptions of the lottery-type incentive. While key findings curtailing participation were suspicion about the caller’s identity, unclear voice, confusing skip patterns, difficulty with the phone interface such as for selecting inappropriate digits for both ordinary and smartphones, and poor network connectivity for remote and rural participants.

Conclusions

Interactive voice response surveys should be as brief as possible and considerate of local preferences to increase completion rates. Caller credibility needs to be enhanced through either masking the caller or prior community mobilization. There is need to evaluate the preferred timing of interactive voice response calls, as the finding of evening call preference is inconclusive and might be contextual.
Procedures of User-Centered Usability Assessment for Digital Solutions: Scoping Review of Reviews Reporting on Digital Solutions Relevant for Older Adults
Authors: Silva Anabela G , Caravau Hilma , Martins Ana , Almeida Ana Margarida Pisco , Silva Telmo , Ribeiro Óscar , Santinha Gonçalo , Rocha Nelson P
Published: October 2020

Background

The assessment of usability is a complex process that involves several steps and procedures. It is important to standardize the evaluation and reporting of usability procedures across studies to guide researchers, facilitate comparisons across studies, and promote high-quality usability studies. The first step to standardizing is to have an overview of how usability study procedures are reported across the literature.

Objective

This scoping review of reviews aims to synthesize the procedures reported for the different steps of the process of conducting a user-centered usability assessment of digital solutions relevant for older adults and to identify potential gaps in the present reporting of procedures. The secondary aim is to identify any principles or frameworks guiding this assessment in view of a standardized approach.

Methods

This is a scoping review of reviews. A 5-stage scoping review methodology was used to identify and describe relevant literature published between 2009 and 2020 as follows: identify the research question, identify relevant studies, select studies for review, chart data from selected literature, and summarize and report results. The research was conducted on 5 electronic databases: PubMed, ACM Digital Library, IEEE, Scopus, and Web of Science. Reviews that met the inclusion criteria (reporting on user-centered usability evaluation procedures for any digital solution that could be relevant for older adults and were published in English) were identified, and data were extracted for further analysis regarding study evaluators, study participants, methods and techniques, tasks, and test environment.

Results

A total of 3958 articles were identified. After a detailed screening, 20 reviews matched the eligibility criteria. The characteristics of the study evaluators and participants and task procedures were only briefly and differently reported. The methods and techniques used for the assessment of usability are the topics that were most commonly and comprehensively reported in the reviews, whereas the test environment was seldom and poorly characterized.

Conclusions

A lack of a detailed description of several steps of the process of assessing usability and no evidence on good practices of performing it suggests that there is a need for a consensus framework on the assessment of user-centered usability evaluation. Such a consensus would inform researchers and allow standardization of procedures, which are likely to result in improved study quality and reporting, increased sensitivity of the usability assessment, and improved comparability across studies and digital solutions. Our findings also highlight the need to investigate whether different ways of assessing usability are more sensitive than others. These findings need to be considered in light of review limitations.
Comparative effectiveness of weekly versus every-2-weeks cetuximab in metastatic colorectal cancer in a US-insured population
Authors: Lamy Francois-Xavier , Batech Michael , Boutmy Emmanuelle , Ronga Philippe , Salim Shaista , Pescott Chris P
Published: October 2020

Aim:
To test the noninferiority of cetuximab administered every 2 weeks (Q2W) versus once weekly (Q1W) in treating metastatic colorectal cancer (mCRC) with regard to overall survival (OS).
Patients:
Patients receiving cetuximab plus chemotherapy for mCRC in a line-agnostic setting.
Methods:
This cohort study in IBM MarketScan followed patients from initiation of cetuximab for mCRC until the end of the data availability period, proxy-based death or loss of insurance coverage for >30 days.
Results
: The hazard ratio for OS was 0.94 (0.85–1.03), and the inferiority hypothesis was rejected at p < 0.001. No significant differences were noted in rates of safety events between Q2W and Q1W.
Conclusion:
Our real-world study confirmed the noninferiority of cetuximab administered Q2W versus Q1W for OS.
Animal models for studying metaphyseal bone fracture healing
Authors:   Institute of Orthopaedic Research and Biomechanics, University Medical Centre Ulm, Germany, Haffner-Luntzer M , Ignatius A
Published: October 2020

An estimated 2 million osteoporotic fractures occur annually in the US, resulting in a dramatic reduction in quality of life for affected patients and a high economic burden for society. Osteoporotic fractures are frequently located in metaphyseal bone regions. They are often associated with healing complications, because of the reduced healing capacity of the diseased bone tissue, the poor primary stability of the fracture fixation in the fragile bone, and the high frequency of comorbidities in these patients. Therefore, osteoporotic fractures require optimised treatment strategies to ensure proper bone healing. Preclinical animal models can help understanding of the underlying mechanisms and development of new therapies. However, whereas diaphyseal fracture models are widely available, appropriate animal models for metaphyseal fracture healing are scarce, although essential for translational research. This review covers large and small animal models for metaphyseal fracture healing. General requirements for suitable animal models are presented, as well as advantages and disadvantages of the current models. Furthermore, differences and similarities between metaphyseal and diaphyseal bone fracture healing are discussed. Both large- and small-animal models are available for studying metaphyseal fracture healing, which mainly differ in fracture location and geometry as well as stabilisation techniques. Most common used fracture sites are distal femur and proximal tibia. Each model found in the literature has certain advantages and disadvantages; however, many lack standardisation resulting in a high variability or poor mimicking of the clinical situation. Therefore, further refinement ofanimal models is needed especially to study osteoporotic metaphyseal fracture healing.
Los cuerpos replicantes. La elusión del cuerpo legítimo en el proceso de formación policial
Authors: Sirimarco Mariana
Published: October 2020

Este artículo explora una de las clásicas rutinas corporales de las escuelas policiales de instrucción —las milongas— y las modalidades que adquiere su elusión, con el objetivo de entender esta resistencia como un modo de enfrentar el imperativo del cuerpo policial legítimo que plantea la institución. Así, la disciplina institucional, lejos de ser una red de férreo control que encapsula todas las libertades y prescribe todas las actitudes, es, por el contrario, una malla plagada de intersticios y de posibilidades de autonomía. En este texto se abordan aquellas prácticas de elusión que llevan a cabo los ingresantes con la intención de sustraer el cuerpo de las rutinizaciones disciplinarias. En tanto la mayoría de estas prácticas se encuentran ancladas en el cuerpo, este resulta el terreno más inmediato donde fijar las posibilidades de resistencia, creatividad y lucha.
Digitization of the emerging economy: An exploratory and explanatory case study
Authors: Ali Muhammad Mahboob
Published: October 2020

Digitization has transformed societies and economies throughout the world. This exploratory and explanatory research has been performed in the context of digitization of Bangladesh economy. The research question is whether the transformation of Bangladesh towards the digital economy can act effectively and efficiently for the benefits of the society and the economy. Quantitative and qualitative analysis was conducted. Sixteen hypotheses were tested based on the Chi-square test. The time period of the study was from April 1, 2019, to December 31, 2019. The Chi-square test findings were significant for the following null hypotheses: Internet of Thinking will not bring benefits of the human beings; robots are not needed for industries; big data cannot be used for the business intelligence; artificial intelligence (AI) is not effective; bitcoin transactions should not be allowed; the banking sector is not relatively digitalized; chatbots do not need to be used in banks; drones cannot be used for commercial purpose; robots cannot be used for education purpose; farmers must not learn to yield wirelessly. Another six null hypotheses were rejected. Fear of losing employment was the key obstruction to execute the 4th Industrial Revolution (4IR) in the country as revealed from the study. Proper information and communication technology (ICT) based education, preparation and knowledge were required. Good governance and regulation should be established with the help of digitization in Bangladesh. The study is suggested to answer the research question, if the benefit from transforming the society to the digital economy may outweigh negative impacts and turn threats into opportunities, reduce demand for labor and disguised unemployment and narrow down the scope of creating new employment opportunities in the country. The potential unlocking system in the global market is feasible through ensuring digitization of Bangladesh society.
Cash Management in Hospitality Sector of Western Europe
Authors: Ahmad Wisal , Khan Shahwali , Sohail Yunis Mohammad
Published: October 2020

The study investigates the effect of factors explaining the cash holdings of hospitality sector in five countries of Western Europe, namely, France, Germany, Spain, Italy and United Kingdom for a period of 12 years (2005-2016). The effect of parameters i.e., size, leverage, capital expenditures, growth opportunities, liquidity, cash flow, asset intangibility, cash flow volatility, dividend payments and stock exchange on cash holdings has been empirically tested by employing dynamic estimation methodology i.e., Generalized Method of Moments (GMM). The findings reveal that growth opportunities and dividend payments have a positive effect on cash holdings, while size, leverage, liquidity, cash flow, asset intangibility, cash flow volatility and stock exchange pose a negative effect. Moreover, the subsectors such as airlines, gambling and restaurants and bars are holding more cash in comparison to the travel and tourism. The study empirically supports the trade-off, pecking order and free cash flow theories of cash holdings for the hospitality sector. The academic implications of the study reflect that larger companies in the hospitality sector of Western Europe are more diversified and hence amass more cash. Similarly, supporting the cash flow theory, larger hospitality sector companies hold more cash to bar the agency issues. Moreover, companies in the hospitality sector keep less cash as such companies face close monitoring and attain leverage cheaply. Supporting the trade off theory, companies in the hospitality sector hold considerable fund of cash to counter cash shortages for making investments. Furthermore, companies in the hospitality sector experiencing more cash flows keep less cash, as influx of cash flows serve as a source of liquidity. Furthermore, to be able to pay stable dividends, the hospitality sector companies amass more cash and hence support the trade off theory. The practical implications of the study shows that by utilizing the empirical findings in this study, an investor sensitive to empire-building traits of managers for their private benefits, can infer that large hospitality companies with more leverage and capital expenditures will hold less cash. However, holding excessive cash in such companies can create agency problems. On the other hand, large hospitality companies holding more cash would have an ease in practicing debt financing as holding more cash is an indication of diversification and expansion, making shareholders more heedful about their net earnings.
Study on temperature field of thermal cracking drilling flow field under the condition of bottom hole submerged jet
Authors: Wang Guohua , Tan Jun , Li Chengxiao
Published: October 2020

In the deep well bottom hole environment, there are several different substances in the process of pyrolysis drilling, such as high temperature supercritical jet medium, cooling water and cuttings, which can be considered as submerged non-free jet of supercritical fluid in low temperature environment. From the energy point of view, there are heat transfer between supercritical fluid and cooling water, heat transfer between supercritical fluid and bottom rock surface, and heat transfer between up flow and well wall. Due to the complexity of the components, the transfer process of these energies is very complex, which has an important impact on the efficiency of thermal cracking drilling. Therefore, it is of great significance to study the heat transfer law under the condition of bottom hole submergence.
Misstatements and Internal Control Over Operations and Compliance
Authors: Chang Yu-Tzu , Chen Han-Chung , Cheng Rainbow K. , Chi Wuchun
Published: October 2020

This study examines whether the effectiveness of internal control over operations and compliance is associated with the likelihood of financial misstatements. Using a unique dataset from Taiwan, we find that the more deficiencies a company has in internal control over compliance, the greater the likelihood that the company's financial statements will be restated in the future; indeed, severe misstatements are more likely for firms with more internal control deficiencies in compliance. However, we do not find a similar impact involving internal control over operations. As the literature contains little about internal control over operations and compliance, our study contributes by shedding light on the importance of control activities in operations and compliance in regard to the quality of financial reporting.
Differentiating MHC-Dependent and -Independent Mechanisms of Lymph Node Stromal Cell Regulation of Proinsulin-Specific CD8+ T Cells in Type 1 Diabetes
Authors: Thayer Terri C. , Davies Joanne , Pearson James A. , Hanna Stephanie J. , Wen Li , Wong F. Susan
Published: October 2020

Lymph node stromal cells (LNSC) are essential for providing and maintaining peripheral self-tolerance of potentially autoreactive cells. In type 1 diabetes, proinsulin-specific CD8+ T cells, escaping central and peripheral tolerance, contribute to β-cell destruction. Using G9Cα−/−CD8+ T cells specific for proinsulin, we studied the mechanisms by which LNSC regulate low-avidity autoreactive cells in the NOD mouse model of type 1 diabetes. Whereas MHC-matched NOD-LNSC significantly reduced G9Cα−/−CD8+ T-cell cytotoxicity and dendritic cell–induced proliferation, they failed to sufficiently regulate T cells stimulated by anti-CD3/CD28. In contrast, non-MHC–matched, control C57BL/6 mouse LNSC suppressed T-cell receptor engagement by anti-CD3/CD28 via MHC-independent mechanisms. This C57BL/6-LNSC suppression was maintained even after removal of the LNSC, demonstrating a direct effect of LNSC on T cells, modifying antigen sensitivity and effector function. Thus, our results suggest that a loss of NOD-LNSC MHC-independent suppressive mechanisms may contribute to diabetes development.
CORRELATION ANALYSIS OF SATELLITE DATA ON CARBON DIOXIDE EMISSIONS AND VEGETATION INDEXES IN THE TERRITORY OF DONBASS
Authors:   Donetsk National University, Donetsk, Nedopekin F.V. , Shestavin N.S. ,   Donetsk National University, Donetsk, Yurchenko V.V. ,   Donetsk National University, Donetsk
Published: October 2020

Using the Emissions Database for Global Atmospheric Research satellite data on the annual global carbon dioxide emissions, their distributions in the Donbass were obtained for the period from 2013 to 2018, indicating their main anthropogenic sources: large cities, thermal power plants and metallurgical plants. Control points were selected near and far from the largest sources of carbon dioxide emissions and, with the help of the resources of the Shared Use Center, systems for archiving, processing and analysis of satellite data of the Institute of Space Research of the Russian Academy of Sciences, the average annual vegetation indexes in the territory of Donbass and at control points for the same period of time were determined. A comparison was made of the reflection intensities in the near infrared and red regions of the spectrum, as well as the normalized relative vegetation indexes at these control points. It is indicated that there is no direct correlation between the values of vegetation indexes and the concentration of carbon dioxide in a given period of time. A sharp decrease in the volume of biomass was noted in a number of control points due to the appearance of signs of drought in the Black Sea region, as well as a significant increase in wild vegetation in the conflict zone in the eastern regions of Donbass.
CREATION OF A DIGITAL ELENATION MODEL BY THE METHOD OF RADAR INTERFEROMETRY
Authors:   Moscow State University of Geodesy and Cartography (MIIGAiK), Nafieva E.N. , Grechishchev A.V. ,   Moscow State University of Geodesy and Cartography (MIIGAiK)
Published: October 2020

The article discusses the experience of applying the technique of constructing a digital elevation model (DEM) by the method of radar interferometry using Sentinel-1A / 1B data on the territory of the Amur region near the city of Svobodny in June 2019. The presented method, which consists of 9 main stages, is implemented in the PHOTOMOD Radar software package. The stages of processing include: loading the initial data and converting them into the internal format of the program; creating a project for processing and combining images of an interferometric pair (recalculating the raster of the auxiliary image into the geometry of the main image); construction pictures of interferogram and coherence and it is also possible to calculate pictures of phase and amplitude; filtering the interferogram and phase transformation (recalculation of the obtained values in meters); construction of a digital elevation model and its geocoding into a geographic coordinate system (WGS 84). After that, the results obtained are assessed and compared with the SRTM digital elevation model, namely, a visual comparison of two digital elevation models, their subtraction (SRTM – model obtained from Sentinel-1A / 1B data) and a comparison heights characteristic relief points. Also made conclusions and considered the possibilities of further projects
IDENTIFIKASI MINYAK CITRONELLA DENGAN GCMS DAN APLIKASINYA SEBAGAI MINYAK ANGIN AROMATERAPI [Identification of Citronella Oil With GCMS and Its Application In Aromatherapy Medicated Oil Formulation]
Authors: Shintawati Shintawati , Zulfahmi Zulfahmi
Published: October 2020

This study aimed to identify citronella oil and find its application as safe aromatherapy medicated oil preferred by consumers. Medicated oil was made in 4 formulas with the ratio of menthol crystals, white oil, gandapura oil, citronella oil, peppermint oil and lemon oil 6: 1: 5: 2: 2: 4; 6: 1: 5: 0: 2: 6; 6: 1: 5: 0: 8: 0 and 6: 1: 5: 8: 0: 0. GCMS results showed that there were 60 volatile organic compounds in citronella oil with alcohol as the most abundant component and contained several compounds that play a role in the development of aromatherapy wind oil products, namely cyclopropane, geraniol, and nerol. The four aromatherapy formulas with a pH of 4.96-5.37, were safe for the skin, non-irritating, stable, and complied with BPOM Head Regulation No. 12 of 2014 with total microbial content of 0-4.5 x 103 colonies/ml. Based on color, natural fragrance, freshness, the warmth, texture and over all likeness, formula with menthol crystal, white oil, gandapura oil, citronella oil, peppermint oil and lemon oil with ratio of 6: 1: 5: 2: 2: 4 and 6: 1: 5: 8: 0: 0 have the highest value of the preference.Keywords: GCMS, aromatherapy and citronella oil
Mikrobiota eyakulyata: klasternyy analiz rezul'tatov, poluchennykh pri issledovanii metodom PTSR-RV
Authors: Ворошилина Е. С. , Зорников Д. Л. , Иванов А. В. , Почерников Д. Г. , Паначева Е. А.
Published: October 2020

Mikrobiota eyakulyata do sikh por nedostatochno izuchena, a klinicheskaya znachimost' vyyavleniya otdel'nykh grupp mikroorganizmov okonchatel'no ne ustanovlena. Tsel'yu raboty bylo provesti klasternyy analiz mikrobioty eyakulyata, vyyavlennoy metodom PTSR-RV. S pomoshch'yu testa «Androflor» («DNK-Tekhnologiya») issledovali 634 obraztsa eyakulyata muzhchin reproduktivnogo vozrasta. Mikrobnuyu DNK v kolichestve ne meneye 103 GE/ml obnaruzhili v 460 (72,5%) obraztsov. V 350 (55,2%) probakh vyyavili ot 1 do 14 grupp mikroorganizmov v nadporogovykh znacheniyakh (chastota vyyavleniya otdel'nykh grupp sostavila 3,3–21,0%). Sredi 350 obraztsov vydelili chetyre ustoychivykh klastera mikrobioty, v kazhdom iz kotorykh preobladala opredelennaya gruppa mikroorganizmov: obligatnykh anaerobov (klaster 1, n = 172; chastota vyyavleniya — 49,1%), Lactobacillus spp. (klaster 2, n = 78; chastota vyyavleniya — 22,3%) grampolozhitel'nykh fakul'tativnykh anaerobov (klaster 3, n = 62; chastota vyyavleniya — 17,7%), Enterobacteriaceae/Enterococcoccus (klaster 4, n = 38; chastota vyyavleniya — 10,9%). Klaster 1 kharakterizovalsya men'shey ustoychivost'yu i bol'shim vidovym raznoobraziyem v sravnenii s drugimi klasterami.
Konstruksi Portofolio Optimal Saham-Saham LQ45 Tahun 2019 di Bursa Efek Indonesia
Authors: Hardjopranoto Wibisono
Published: October 2020

Abstract—The ideal investment objective is to build an optimal investment portfolio. An investment portfolio that is able to provide maximum return at a certain level of risk. William Sharpe's (1963) Single Index Model (SIM) is a model with simple application, especially when compared to the Markowitz model (1952), mainly because of the consideration of the number of input variables. A simple SIM explains the relationship between market returns (rm) as an independent variable and returns on securities, ri with variations in the risk as the slope characteristic line, βi. The main limitation of MIS is that the risk in investing is represented only by changes in the index that are representative of the market. Using SIM, this study will describe the optimal portfolio construction by selecting LQ45 stocks on the Indonesia Stock Exchange (IDX) in 2019. The implementation of the SIM resulted in 19 LQ45 stocks selected from 45 stocks as optimal portfolio "members", along with the composition the weighting of the investment value starts from the highest weight to the lowest weight. Because using a single index in measuring risk, the application of SIM is aware of its various weaknesses and must be wise in choosing the index as the market. However, the application of SIM can provide valuable lessons for investment management.Keywords: Portfolio Analysis, Optimal Portfolio, Risk Characteristic Line, Single Index Model

Abstrak—Tujuan investasi yang ideal adalah membangun portofolio investasi yang optimal. Portofolio investasi yang mampu memberikan imbal hasil (return) maksimal pada tingkat risiko tertentu. Single Index Model (SIM) William Sharpe (1963) merupakan model yang aplikasinya sederhana, terutama jika dibandingkan dengan model Markowitz (1952), terutama karena pertimbangan jumlah variabel masukannya. SIM  secara sederhana menjelaskan hubungan antara imbal hasil pasar (market return, rm) sebagai variable bebas dengan imbal hasil sekuritas, ri dengan variasi perubahan risiko berupa slope characteristic line,  Keterbatasan utama SIM adalah karena risiko berinvestasi hanya diwakili satu-satunya oleh perubahan-perubahan indeks tertentu mewakili pasar. Dengan menggunakan SIM, penelitian ini hendak menggambarkan bangunan portofolio optimal dengan memilih saham-saham LQ45 di Bursa Efek Indonesia (BEI) tahun 2019. Penerapan SIM dimaksud menghasilkan 19 saham LQ45 yang terpilih dari 45 saham sebagai “anggota” portofolio optimal, berikut komposisi pembobotan nilai investasinya mulai dari bobot yang tertinggi ke bobot terendah. Karena menggunakan indeks tunggal dalam mengukur risiko, penerapan SIM selain harus menyadari berbagai kelemahannya juga harus benar-benar bijak dalam memilih indeks sebagai pasarnya. Bagaimanapun, penerapan SIM mampu memberikan pelajaran yang sangat berharga bagi manajemen investasi.Kata kunci: Portfolio Analysis, Optimal Portfolio, Risk Characteristic Line, Single Index Model
Labour Law Under Stress: Some Thoughts on Covid-19 and the Future of the Labour Law
Authors: Anderson Gordon
Published: October 2020

Even before the Covid-19 crisis, academics and policy analysts were becoming aware of the cumulative impact that are increasingly placing strains on the existing regulatory design of New Zealand’s labour market. These forces include decades of globlisation, increasing international migration flows, various manifestations of the digital and technological revolution, rapid growth of digital-Taylorism as a form of labour control, and perhaps the most devastating in the longer term, the potential impacts of climate change.

It is increasingly recognised that these forces will have a significant long-term impact on labour markets, however, the Covid-19 crisis has shown how rapidly the world can change. This article outlines the (maybe) good, the (sometimes) bad, and then ugly of the Covid-19 pandemic and its economic consequences on New Zealand’s labour relations, labour architecture, and the future of labour law.
Development and Validation of the Inviting Teaching Effectiveness Scale based on the Invitational Theory
Authors: Al-Musawi Neaman M. S.
Published: October 2020

This study reports on a new instrument, the Inviting Teaching Effectiveness Scale (ITES), which is a 20-item measure based on the fundamental teaching competencies derived from the principles of Invitational Education (Purkey & Novak, 1984). The initial instrument had included 30 items and was then validated on a random sample of 640 students enrolled at the University of Bahrain. The final version of the developed Scale contains 20 items and measures four aspects of inviting teaching effectiveness: Invitational instruction, inviting relationships, invitational assessment and inviting classroom environment. As the new Scale displayed sound psychometric properties, it can be considered as a potentially useful tool to assess teacher performance and improve teaching practices at tertiary level of education. Information about test construction, reliability, validity, and generalizability are presented and implications and benefits associated with use of the instrument as a tool for measuring teaching effectiveness are discussed.
First steps towards a dynamical model for forest fire behaviour in Argentinian landscapes
Authors: Denham Monica , Laneri Karina , Zimmerman Viviana , Waidelich Sigfrido
Published: October 2020

We developed a Reaction Diffusion Convection (RDC) model for forest fire propagation coupled to a visualization platform with several functionalities requested by local firefighters. The dynamical model aims to understand the key mechanisms driving fire propagation in the Patagonian region. We'll show in this work the first tests considering combustion and diffusion in artificial landscapes. The simulator, developed in CUDA/OpenGL, integrates several layers including topography, weather, and fuel data. It allows to visualize the fire propagation and also to interact with the user in simulation time. The Fire Weather Index (FWI), extensively used in Argentina to support operative preventive measures for forest fires management, was also coupled to our visualization platform. This additional functionality allows the user to visualize on the landscape the fire risks, that are closely related to FWI, for Northwest Patagonian forests in Argentina.
Impactos do sistema de pagamento por qualidade do leite em uma cooperativa da agricultura familiar
Authors: Meneghatti Marcelo Roger , Griebeler Aline , Fariña Luciana Oliveira de , Bertolini Geysler Rogis Flor
Published: October 2020

Este estudo teve como objetivo analisar os impactos gerados pela implantação de um sistema de pagamento baseado por indicadores de qualidade implantados em uma Cooperativa da Agricultura Familiar. Trata-se de uma pesquisa qualitativa, documental e de campo, com entrevistas semiestruturadas com os três representantes da Cooperativa estudada e todos os produtores que confiam a ela seu produto. As análises das entrevistas foram realizadas por intermédio do software Iramuteq, sendo elas a Classificação Hierárquica Descente e a de Similitude de palavras. Os resultados demonstraram a importância do Sistema de Pagamento por Qualidade, principalmente por apresentar impactos socioeconômicos e técnicos, pois a qualidade do leite entregue melhorou, e os produtores trabalharam motivados pela implantação do Sistema de Pagamento por Qualidade. Como contribuição esta pesquisa aponta os impactos positivos e negativos causados pela implantação deste sistema, permitindo um novo olhar de aprimoramento e novas maneiras de uso desta forma de gestão.
Palavras-chave: Desenvolvimento Rural. Cooperativismo Sustentável. Produção de Leite.
Aportaciones al conocimiento de las algas del SE de España. IV. Las diatomeas (Bacillariophyceae)
Authors: Aboal Marina
Published: October 2020

Se presentan un total de 148 táxones de Diatomeas distribuidas por todo tipo de ambientes del SE español. Se aportan datos sobre su ecología y se sumariza por medio de tablas los rangos de variación de los principales factores físico-químicos para la mayoría de las especies.
La clase Cisto-Lavanduletea en la provincia de León
Authors: Diaz-Gonzalez Tomás E. , Penas-Merino Angel , Lopez-Pacheco Mª José , Perez-Morales Carmen , Llamas-Garcia Félix
Published: October 2020

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Aportación al estudio palinológico de la flora ornamental alergógenakle la ciudad de Málaga: Gimnospermas
Authors: Trigo Mª Mar
Published: October 2020

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Contribución al conocimiento edafófilo-serpentinícola del Sector Rondeño (Málaga, España)
Authors: Cabezudo Baltasar , Nieto Caldera José Mª , Pérez Latorre Andrés
Published: October 2020

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Estudio sistemático de los táxones de la serie Pollium, género Teucrium L. en las Cordilleras Béticas
Authors: Navarro Teresa , Rosua José Luis , Mota Juan Francisco
Published: October 2020

Se reconocen cuatro especies montanas del género Teucrium L. (Serie Polium. subsecc. Polium Cohen. Secc. Polium (Miller) Schreber) en las Cordilleras Bélicas: Teucrium similatum Navarro & Rostía, Teucrium lerrouxi Sennen, Teucrium leonis Sennen y Teucrium bicoloreum Pau. Para cada uno de estos táxones se ofrece su citación completa, sinónimos, tipos nomenclaturales, mapa de distribución, corología, ecología, fitosociología e ilustraciones Se incluye la clave de especies.
Encinares luso-extremadurenses y sus etapas preclimácicas
Authors: Ladero Miguel , Perez Chiscano José Luis , Santos Maria Teresa , Valle Cipriano Jesús , Amor Angel
Published: October 2020

Se comentan las distintas faciaciones de encinar observadas en la provincia corológico luso-extremadurense, dentro de la serie mesomediterráneo de la encina o Quercus rotundifolia Pyro-Querceto rotundifoliae sigmetum.
Luis Crespí Jaume (Madrid, 1889 - Madrid, 1963)
Authors: Crespi A. Luis , Gonzalez Bueno Antonio
Published: October 2020

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Notas pteridológicas del Valle del Jalón
Authors: Escudero Adrián , Molina Andrés , Rubio Sanchez Agustín
Published: October 2020

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Scutellaria gallericulata L. (Labiatae) en Andalucía
Authors: Lopez Nieto José M. , Perez Raya Francisco
Published: October 2020

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Sobre adventicias en Andalucia Oriental
Authors: Molina Abril José A.
Published: October 2020

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Cultivo de Ceratocystis (Ophiostoma) ulmi (Buism.) Moreau en medio líquido, e inoculación
Authors: Salvador Nemoz María Laura , Martínez de Azagra Andrés , Orla de Rueda Juan Andrés , García Nieto María Eugenia , García Nieto María Eugenia , Gil Sánchez Luis
Published: October 2020

En el presente trabajo se ensaya la técnica de inoculación de Ceratocystis (Ophiostoma) ulmi (Buism.) Moreau, en olmos procedentes de semilla y se observa la respuesta de las plantas a la enfermedad.
La introducción de las teorías de E. Acharius (1757-1819) en la liquenología española
Authors: González Bueno Antonio , Rico Víctor J.
Published: October 2020

El sistema taxonómico trazado por E. Acharius fue introducido en España por M. Lagasca y S.R. Clemente. La recepción del "Methodus..." (1803) se efectuó con anterioridad Noviembre de 1806, a tenor de la correspondencia mantenida entre M. Lagasca y P. Lallave.

La "Sinopsis..." (1814) fue utilizada con anterioridad a Junio de 1817, este texto fue distribuido por el algólogo sueco C.A. Agardh entre sus corresponsales A. Cabrera y F. Haenseler.

E. Acharius recibió líquenes españoles, herborizados por M. Lagasca, L. Dufour y P.K.A. Schousboe, y ejemplares americanos, de A.J. Cavanilles y J. Dombey, con anterioridad a 1807. Los materiales del "Ensayo..." (1807) de S.R. Clemente fueron recibidos por E. Acharius entre 1809 y 1814.

Se aportan los datos disponibles sobre la localización de los materiales citados por estos autores en sus trabajos liquenológicos.
Química y distribución de Umbilicaria freyi, U. grisea y U. hirsuta en la Peninsula Ibérica Química y distribución de Umbilicaria freyi, U. grisea y U. hirsuta en la Peninsula Ibérica
Authors: Sancho Leopoldo G. , Seriñá Estela , Arroyo Rosario , Manrique Esteban
Published: October 2020

Se realiza un estudio químico comparado de Umbilicaria freyi Codogno & al., una nueva especie descrita recientemente, y de sus especies afines U. hirsuta (Sw.) Ach. y U. grisea Hoffm. Se aportan nuevos datos sobre la distribución y ecología de estos tres táxones en la Península Ibérica.
Algunos líquenes interesantes de El Teleno (León, NW de España)
Authors: Terrón Alfonso Arsenio , García Sancho Leopoldo
Published: October 2020

El Teleno es un monte situado en la Sierra del mismo nombre, con una altitud de 2185 m., y que forma parte de los Montes de León. Destacan en él, los sustratos ácidos (cuarcitas, pizarras y areniscas). De los líquenes saxícolas que colonizan estos sustratos en alturas superiores a los 1700 m., realizamos un comentario de aquellos más interesantes, destacando entre otros: Chrysotrix chlorina, Fuscidea intercincta,Lecideafurvella, Schaereria tenebrosa, Bellemerea alpina,Lecanora frustulosa,Orphniosporamoriopsis var. bahusiensis, Rhizocarpon ferax, Rhizocarpon hochstetteri, Umbilicaria freyi y Umbilicaria hyperborea.
Contribuiçao para o conhecimento citotaxónomico da flora dos Acores-IV
Authors: Queirós Margarida , Ormonde José , Nogueira Isabel
Published: October 2020

Se estudia el número cromosómico de Diplazium caudatum (Cav.) Jermy (n=41) proveniente de las Islas Terceira y S. Miguel (Açores). Este recuento, se da a conocer por primera vez para las Açores, coincidiendo con los obtenidos anteriormente por otros autores. Así mismo, se ha realizado el estudio biométrico de las esporas y de las células estomáticas haciéndose también una diagnosis del taxon. Se hace referencia a la cariología y características ecológicas de dicho taxon en la Macaronesia.
Aportación al estudio sobre la fenología reproductura de las algas pardas y verdes del litoral del Sureste de España
Authors: Soto Juan
Published: October 2020

En este trabajo se aporta información sobre la fenología reproductura de 30 tiixones de algas pardas y 20 de algas verdes en el Sureste de España, comparando el comportamiento fenolágico observado con el descrito en áreas adyacentes del mediterráneo español. Paralelamente, se interpreta la fenología detectada en base a las observaciones realizadas en el litoral y a la bibliografía consultada.
Vegetación acuática y helofítica de la depresión de Padul (Granada)
Authors: Pérez Raya Francisco , López Nieto Juan Manuel
Published: October 2020

Se presenta un estudio de la vegetación acuática y helofítica de la Depresión de Padul. Se reconocen seis comunidades acuáticas, una terofítica y cinco helofíticas pertenecientes a las clases fitosociológicas: Lemnetea,Ceratophylletea,Charetea Potametea, Isoeto-Nanojuncetea y Phragmitetea.
Sobre el "Herbario Medicinal" de Juan Texidor (1838-1885)
Authors: Francés Causapé María del Carmen , González Bueno Antonio
Published: October 2020

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Estudios palinológicos en la subfamilia Asteroideae (Compositae) en el Sureste de la Peninsula Ibérica
Authors: Blanca Gabriel , Salinas María Jacoba , Díaz de La Guardia Consuelo , Romero García Ana Teresa
Published: October 2020

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Sobre la colección de algas del Herbario de la Sociedad Malagueña de Ciencias (s. XIX)
Authors: Conde Poyales Francisco
Published: October 2020

A través del trabajo de Bellón, 1940, descubrimos ene! Laboratorio Oceanográfico de Málaga, parte de lo que fuera el herbario de la Sociedad Malagueña de Ciencias (HSMC). En dicho herbario, de 242 pliegos de algas, encontramos material de casi un siglo y medio de antigüedad, de diversas localidades (Tánger, Cádiz, Málaga, Gibraltar, Nápoles, Suecia, Noruega, Helgoland y de otras sin indicación precisa) probablemente de algólogos de la época (Cabrera, Schousboe, C. Agardh, Haenseler, Prolongo, Magnus y otros que ofrecen dudas, como Correns, Jaenicke y Müller). En este primer trabajo tan sólo publicamos aquellos pliegos en que coincidía el binomen antiguo con el material identificado. Son 148, lo que representa 96 taxones (60 Rhodophyceae, 27 Phaeophyceae y 9 Chlorophyceae). Por otra parte, hay que destacar el pliego n° 33 de Cádiz (Focus floresius Clemente), al que consideramos como neótipo de Halymertia floresia (Clemente) C. Agardh, y el n° 34 también de esta localidad, nos avala la prioridad de Zonaria tournefortii (Lamouroux) Montagne sobre Z. flava (Clemente) C. Agardh, que es lo que dice Nizamuddin, 1981: 32.
Corresponsales de la ceres española y de la ceres europea (1814-1821)
Authors: Gomis Blanco Alberto , Fernández Pérez Joaquín
Published: October 2020

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