bluuebunny/crossref_metadata_2025 huggingface dataset:
FEASIBILITY STUDY HOTEL DI BENGKALIS (STUDI KASUS HOTEL WISMA KITO BENGKALIS)
Authors: Perdana Muhammad Alkadri , Maulana Hutomo Atman
Published: May 2019

Investment in hotel business is a high-risk decision because it requires very large capital and aims to benefit in the future. To minimize risk and estimate the amount of profit to be obtained, a feasibility study of investment is needed. This study aims to find out the breakdown of the calculation of business investments made in hotels in Bengkalis Regency in detail. Feasibility Study is conducted to find out whether or not investment in hotel development in Bengkalis Regency is worthy. This feasibility study was carried out using the calculation of Break Even Point Analysis (BEP), Net Present Value (NPV), Pay Back Period Analysis and Internal Rate of Return (IRR). Research data collection was carried out through surveys, interviews and direct observation to the location. This study also uses secondary data from the Bengkalis Regency Central Statistics Agency. The results of this study show that Break Event Point (BEP) is 31 years 11 months 11 days, Net present Value (NPV) is Rp.2.536.661.016, and Internal Rate of Return (IRR) is 12,512%.
PENGEMBANGAN MODEL KUALITAS LAYANAN TRANSPORTASI ONLINE DI INDONESIA
Authors: Herdiansyah Dedi , Abdullah Abdullah , Fahrizal Meizi
Published: May 2019

Penelitian kali ini adalah upaya pengembangan konsep kualitas layanan transportasi online melalui pengalaman/perspektif pelanggan/masyarakat sebagai pengguna jasa layanan transportasi online di Kota Pontianak dan sekitarnya. Tujuan umum penelitian ini adalah untuk mengembangkan model kualitas layanan jasa transportasi online. Lebih lanjut konsep yang akan dibentuk ini nanti juga diharapkan dapat memperkaya wawasan pihak-pihak yang berkepentingan dalam memanajemen layanan dan peluang-peluang bagi peningkatan penerapan kualitas layanan bagi penyedia layanan jasa transportasi online di Kota Pontianak. Tujuan khusus yaitu menemukan fakta-fakta layanan melalui masyarakat penggunan layanan jasa transportasi online di Kota Pontianak, sehingga hasilnya diharapkan akan ditemukan dimensi-dimensi layanan berkualitas yang diinginkan oleh masyarakat yang harus disediakan oleh penyedia layanan, sebagai alat untuk bersaing sesama penyedia layanan jasa transportasi online. Penelitian ini menggunakan metode penelitian kualitatif dengan pendekatan fenomenologis, dengan metode pengumpulan data melalui wawancara mendalam (indepth interview). Hasil penelitian mengidentifikasi mengidentifikasi 6 (enam) tema dimensi kualitas layanan, yaitu: (a). Fisik/keberwujudan (terdiri dari dua hal yaitu: fisik kendaraan dan fisik driver), (b). keamanan, (c). kenyamanan, (d). kecepatan, (e). ketepatan (terdiri dari dua hal yaitu: ketepatan waktu dan ketepatan pesanan, dan (f). Keramahan.
IDENTIFIKASI POTENSI SERTA MINAT KONSUMEN AKAN EKOWISATA MANGROVE DI PULAU BENGKALIS
Authors: Astuti Dwi , Widodo Teguh
Published: May 2019

Although the government has made various efforts to encourage the sustainable use of coastal and marine resources, utilization patterns that are damaging and threaten the sustainability of coastal and marine resources are still ongoing. This is due to the pressing of need for life, which is getting higher and higher. Development of mangrove ecotourism is one of the alternative development that can help overcome the problem. Utilization of mangrove ecosystem for the concept of tourism (ecotourism) in line with the change in the interest of tourists from old tourism as a new tourism. The purpose of this research is to identify the potential of ecotourism and to determine ecotourism development strategy in Bengkalis Island. The research method used for data type is quantitative and qualitative data with data source in the form of primary data and secondary data. Data collection conducted through questioner, survey method, literature and documentation. Furthermore, the data analysis used is using quantitative and qualitative data analysis methods. The results of the research show that the potential of mangrove ecotourism in Bengkalis Island that can be identified is located in Bengkalis, Bantan, Rupat, Bukit Batu, Siak Kecil and Bandar Laksamana subdistricts. Based on the processing of questionnaire data, the results obtained if consumer interest in mangrove ecotourism on Bengkalis Island, is dominated by referential interest, where the respondents want that mangrove ecotourism on Bengkalis Island is better known and in demand.
PERENCANAAN DAN PEMBUATAN BISNIS RAINBOW PANE ROTOLATO (TINJUAN ASPEK PEMASARAN)
Authors: Putri Andari , Sunarto Nazrantika
Published: May 2019

Proyek tugas akhir ini berjudul “Perencanaan dan Pembuatan Bisnis Rainbow Pane Rotolato (Tinjauan Aspek Pemasaran)”. Tujuan umum dari proyek akhir ini adalah untuk merencanakan dan memasarkan produk Rainbow Pane Rotolato. Tujuan khusus dari proyek ini adalah untuk mengetahui strategi pemasaran yang diterapkan dalam produk Rainbow Pane Rotolato, untuk mengetahui kendala dalam pelaksanaan pemasaran pada produk Rainbow Pane Rotolato dan untuk mengetahui solusi dalam kendala pelaksanaan pemasaran pada produk Rainbow Pane Rotolato. Proyek akhir ini dilaksanakan menggunakan empat metode, yaitu rencana persiapan proyek, rencana pelaksanaan proyek, rencana penyelesaian proyek dan rencana pelaporan proyek. Strategi pemasaran yang diterapkan terbagi menjadi empat bagian, yaitu segmenting, targeting, positioning, dan strategi bauran pemasaran. Hasil dari pelaksanaan proyek akhir ini yaitu produk yang dipasarkan adalah Rainbow Pane Rotolato yang memiliki bentuk roti bulat pipih, dihiasi dengan topping dan dikemas dengan kemasan menggunakan cup container yang telah ditempel label. Harga yang ditetapkan menggunakan metode Mark-Up Pricing dan keuntugan yang diperoleh sebesar Rp1.634.000,-. Kendala yang dihadapi yaitu salah satunya adanya kesulitan mencari alamat kosumen saat melakukan delivery order sehingga cukup lama mencari rumah konsumen tersebut
ADULT EDUCATION AND NATIONAL TRANSFORMATION IN NIGERIA
Authors: Muhammad Musa Usman
Published: May 2019

This is a discussion on Adult Education programmes and National Transformation in Nigeria. The study was necessitated by observing the various efforts made by the Nigerian government, local and international interventions from 1980s to date and the present literacy rate and the present level of development in Nigeria. Adult education connotes a desirable change that can improve the role of adult population in their community and national development. It is not the children, but the adults who hold in their hands the destiny of a society. The paper reviewed the various transformational plans implemented in Nigeria from 1980s to date. It also reviewed how the Chinese and American governments implemented and used adult education programmes to bring developmental changes in their countries. It concluded that, being  a means of acquiring general knowledge, skills, values, social and political changes by adults, the Nigerian government did not give adult education due priority and that was why most of the government programmes and plans failed in the past.. Some of the recommendations include: to adequately finance adult education programmes and give sustainable and effective priority to achieve the desired objectives.
TOWARDS REVITALIZATION OF INSTRUCTIONAL LEADERSHIP FOR EFFECTIVE IMPLEMENTATION OF UNIVERSAL BASIC EDUCATION IN NIGERIA
Authors: Bello Bello Ahmad
Published: May 2019

This paper examined the needs to revitalize instructional leadership of primary and junior secondary schools headteachers in Nigeria, for successful implementation of the Universal Basic Education (UBE) Programme. Instructional leadership, as viewed in the paper, has to do with creating a school culture that makes students’ learning a priority and provides the resources necessary to support teachers’ efforts to improve students’ learning. The need for revitalization of instructional leadership in the Nigerian Basic Education schools emanates from the identified problems of lack of clearly defined general instructional visions in the schools in question, dearth of instructional materials, ineffective instructional supervision by the headteachers, and absence of school-based professional development programmes for teachers. With the introduction of UBE and subsequent curricular review, the paper discovered that there was the need to re-orient teachers towards effective teaching of the newly infused contents of the 9-year basic education curriculum. The paper, based on the identified needs for the revival of instructional leadership has recommended clear definition of schools’ instructional vision, effective classroom supervision, organizing school-based teacher professional development programmes among other things as foremost measures to be taken to improve this vital function of the school headteachers in question.
EFFECT OF MULTIMODAL STRATEGIES ON THE LEARNING OF LISTENING SKILLS AMONG JUNIOR SECONDARY SCHOOL STUDENTS IN SOKOTO METROPOLIS, SOKOTO STATE, NIGERIA
Authors: Onyebuchi Chinyere , Ibrahim Mohammed
Published: May 2019

This research investigated the effect of multimodal strategies of teaching listening skills in Junior Secondary Schools in Sokoto metropolis, Sokoto State. The objective was to find out if using multimodal strategies to teach listening skills will enhance their learning when compared to traditional method. The population was 59,265 JSS students in Sokoto Metropolis. Stratified sampling technique was used to select the schools while random sampling technique was used to select one intact class from each school. Thus, the sample size was 394 JSS1 students. The instrument used for collecting data after treatment was Listening Level Test (LLT). Thirty questions were designed with options A, B and C. A group of 10 questions were set relating to each of the listening type: attitudinal, informative and appreciative. The validity of the instrument was determined by some Junior Secondary School English teachers and language education experts in the Department of Curriculum Studies and Educational Technology, Usmanu Danfodiyo University, Sokoto.  Pilot study was conducted on twenty students through test-re-tests method to determine the reliability of the study.  The results were correlated using Pearson’s Product Moment Coefficient formula which produced a reliability index of 0.83. The data collected after administration of the treatment was analyzed using mean, standard deviation to answer the research questions and t-test to test the null hypotheses of the research. It was found that multimodal strategies enhanced the listening comprehension skills of the subjects. The researchers recommended that teachers should use multimodal strategies to teach listening skills in junior secondary schools so as to help students perform very better in listening skills.
APPRAISING NEW APPROACHES TO THE FUNDING OF TERTIARY EDUCATION FOR SUSTAINABLE NATIONAL DEVELOPMENT IN NIGERIA
Authors: Omotayo Bolatito Abdulrafiu
Published: May 2019

This paper examined the new approaches to the funding of tertiary education for sustainable development in Nigeria. Tertiary institutions are regarded as the single most important industry for the production of high level manpower needed for the transformation of Nigerian economy and therefore deserve better funding. Tertiary institutions include Universities, Polytechnics and Colleges of Education. However, over the years, tertiary educational institutions in Nigeria have been battling with the issue of insufficient funds from its proprietors because of the insignificant percentage allocated to educational sector and this has crippled tertiary institutions in Nigeria and preventing them attaining fullest capacity, to compete with their counterparts across the globe. Low budgetary allocation to education sector, the sudden collapse of global oil market that lead to sharp reduction in government revenue, and coupled with pressure from academic staff bodies like Academic Staff Union of Universities, Academic Staff Union of Polytechnics, and Colleges of Education Academic Staff Union made government to seek for new approaches of financing tertiary education in Nigeria. This paper therefore, argues that funding of tertiary education should not be the responsibility of government alone, since education is an instrument for economic and social development; parents, educational stakeholders, private sector, employees institutions, nongovernmental organization etc have to make differential contributions to meet the cost of higher education. This paper suggested that government should collaborate with private sector, nongovernmental organizations, and International Financial Organizations such as World Bank, International Monetary Fund to fund tertiary education in Nigeria.
CREATING A POSITIVE CLASSROOM CLIMATE TO ADDRESS DISCIPLINARY PROBLEMS IN SECONDARY SCHOOLS FOR QUALITY EDUCATION
Authors: Takpi Samuel Orshio
Published: May 2019

This paper contests the act of subjecting students to corporal punishment by the schools’ administrators and teachers as a sure means of correcting disciplinary problems in the schools.   It outlines effects of corporal punishment on students as; affecting their reasoning abilities, deter their social interaction and mutual understanding, hinders active participation in their academics activities etc. It also identifies some contributing factors behind prevalence of corporal punishment in schools such as; poverty, environment, temperament etc. This paper argues for; having classroom norms, making your class interesting, value of human dignity, understanding the meaning behind the behavior etc. as ingredients of positive classroom climate. It finally suggests that; positive disciplinary actions should be imbedded in teachers’ training program curriculum, remuneration of teachers should be increased to reduce their level of poverty, ministries of education at all levels should be organizing capacity building workshops in the most demanding areas of education such as; disciplinary management, class control, teaching methodology and resources etc. for teachers and schools’ administrators at least once in every two years.
APPRAISAL OF QUALITATIVE AND PRODUCTIVE ENTREPRENEURSHIP EDUCATION FOR SUSTAINABLE NATIONAL DEVELOPMENT IN NIGERIA
Authors: Danbuba Jummai Muhammad
Published: May 2019

The unemployment rate demands for the re-positioning of our educational policies and programmes in the production of self-reliant graduates that will not only be independent but  employers of labour. This paper sought to examine the objectives of entrepreneurship education in terms of empowerment, diversification and job creation, as well as the significance of the discipline in incorporating skills, integrating of economic models, professionalism, and entrepreneurship ethos. The paper further addressed the challenges that bedeviled entrepreneurship education such as lack of standard system on curriculum provision and evaluation, insecurity, and poor perception of the discipline with suggestions such as collaborative curriculum drafting, employment of qualified teachers, and adequate supervision of facilities for effective learning and sustainability.
LOCUS OF CONTROL, STUDY HABITS AND GENDER AS PREDICTORS OF SENIOR SECONDARY SCHOOL STUDENTS ATTITUDE TO PHYSICS IN IBADAN METROPOLIS
Authors: Ukoh Edidiong E , Okeke Uchenna K
Published: May 2019

The study investigated the relationship between Locus of Control, Study Habits, Gender, and Attitude of senior secondary schools physics students in Ibadan metropolis. The study focused on the extent to which Locus of Control, Study Habit and Gender predicted senior secondary schools students Attitude to physics in Ibadan metropolis. The study adopted the descriptive survey research design of the correlational type. The population for the study comprised all senior secondary school 3 (SS3) Physics students in Ibadan Metropolis. Seven hundred and fifty (750) senior secondary 3 (SS3) Physics students were randomly selected from 30 schools in the five local government areas of Ibadan Metropolis. Three instruments were used for data collection. The instruments are Locus of Control Scale (LOCS) with a reliability coefficient of (0.86), Study Habit Questionnaire (SHQ) with a reliability coefficient of (0.89) and Physics Attitude Test Questionnaire (PATQ) with a reliability coefficient of (0.70). Four (4) research questions were raised and answered, using descriptive statistics of mean, inferential statistics of Pearson Product Moment Correlation and Multiple Regression Analysis. Findings of the study showed that the students have an internal Locus of Control. There is a significant composite relationship between the independent variables (Locus of Control, study habits and Gender) and Attitude of students to Physics, with R=.521a, which is equivalent to 52.1%. This indicates a good level of prediction. R2 = 0.271, which is equivalent to 27.1%, indicating the level of shared variance between the dependent variable and the independent variables. Locus of control has the highest contribution with unstandardized coefficient of 0.356 and standardized coefficient of 0.334, while gender has the least contribution with standardized coefficient of .016 and unstandardized coefficient of 0.002. There is a significant relationship between students’ locus of control and students’ attitude to physics [ r=.434, n=750,p=<0.01]. There is no relationship between Gender and Attitude of students to physics [r=-.041,n=750, p=<0.01]. The study concluded that locus of control; study habits and gender are predictors of students’ attitude to physics. The study recommends that necessary instructional methods that will enhance students’ locus of control and study habits be adopted; and gender related issues should be de-emphasis in senior secondary school physics teaching and learning.
TEACHER EDUCATION: AN IMPERATIVE FOR NIGERIA’S VISION 2020
Authors: Mohammed A F , Adeniyi Adeshina E , Uyagu Grace , Yahaya Buhari , Mohammed Risikatu
Published: May 2019

The major focus of this paper is an examination of how teacher education can be used to respond to the Nigeria vision 2020 challenges which entails total development plan for the nation. More specifically, the paper examined how teacher education could partly helped in attaining the goal of vision 2020 in making the country economically prosperous, politically stable and socially harmonious. To achieve these objectives, the paper examined the concepts of national development, teacher education, its objectives and curricular and relate them to the issues of vision 2020. The paper suggested the need for teacher education programme to be improved upon within the context of vision 2020.
A STUDY OF THE EFFECTS OF SPECIFIC INSTRUCTIONAL OBJECTIVES ON THE ACQUISITION OF INTENDED AND UNINTENDED LEARNING CONTENT
Authors: Mkpa Mkpa A
Published: May 2019

This study sought to determine the effect of specific objectives on the acquisition of intend­ed and unintended learning content. It has hypothesized that the experimental and control groups would not differ in their acquisition of intended and unintended learning. The subjects were 82 undergraduates randomly assigned to the experimental (E) and Control (C) groups.The post-test only control group design was employed whereby the E group had specific ob­jectives inserted in their typed lecture. The C group received the same lecture without any objec­tives. After 2 hours study of the lecture material, a teacher-made post-test, the items of which were partly referenced to the specific objectives, was administered to the two groups. Using ANOVA to analyse the post-test data, the E groups performed significantly better in the test items referenced to the objectives. But the control excelled in the items not referenced to the ob­jectives. The implications of the study are highlighted.
THE RATIONALE FOR PLANNING VOCATIONAL AND TECHNICAL EDUCATION FOR NIGERIAN YOUTHS
Authors: Muhammad Umaru Tuni
Published: May 2019

There is enough evidence in Nigeria today that the numbers of unemployed youths are already considerable and appear to be increasing rapidly in all the corners of the Federation. The implication of this is that if nothing is done, the result would be catastrophic for the nation since it may lead to the creation of a new generation of armed robbers and at best “social rebels” and delinquents for Nigeria. The objective of this paper is not to provide a panacea to the afore-said problem; it is rather an attempt to examine the occupational training needs of Nigerian youths and some of the  obstacles to vocational education programmes. Some planning and management issues that may have to be considered if such vocational needs are to be met are also analysed. The technicalities and other modalities involved in technical and vocational education do not fall within the realm of this paper and are therefore left for the experts to tackle.
LEADERSHIP AS A DIMENSION OF TEACHER EFFECTIVENESS
Authors: Garba S D
Published: May 2019

In the past the teacher has been the focus of attention by critics of teacher performance. Those who view the school from outside hardly think that other factors within the school and outside the teachers control could influence teacher effectiveness.The classroom is usually regarded as the exclusive domain of the teacher. Students’ coverage of contents involvement in classroom activities and students’ success at school work are viewed from the standpoint of the teacher. In this paper, the author examines the role of the school leadership in creating the proper working and learning conditions for teachers and students without which teachers efforts would amount to nothing. The author argues that in the new education system being adopted, focus should sfiift from the classroom teacher to the quality of leadership the school enjoys. Good school leadership can support, enhance and create such essential teacher characteristics as appropriate lesson plans, classroom management, instruc­tional methods that facilitate the achievement of school objectives, high teacher expectation of students, teacher sensitivity to students’ emotional and motivational needs and evaluation.
THE STRUCTURE OF ADULT EDUCATION AND THE PERFORMANCE OF THE LECTURE
Authors: Tahir Gidado
Published: May 2019

This paper discusses the structure of Adult Education programmes and, on the basis of ex­periential and intuitive considerations, attempts to construct a schema of relationships between the lecture, the didactic presentation of materials, and the former. Consequently, a research agenda has been proposed. The paper concludes that the lecture is not an appropriate and effec­tive instructional method in adult education. However, in certain circumstances, particularly with University Extension Programmes, the lecture may be an effective and expedient approach for conveying information to adults if it is properly used. Finally, adult education training agencies are called upon to intensify the use of group approaches and activity-teaching methods and techniques in their training programmes.
Peritoneal Protein Loss, Leakage or Clearance in Peritoneal Dialysis, Where do we Stand?
Authors: Guedes Anabela Malho
Published: May 2019

Peritoneal protein loss (PPL) through peritoneal effluent has been a well-recognized detrimental result of peritoneal dialysis (PD) treatment since its inception. Investigation has focused mainly on PPL quantitative and qualitative determinations and evaluation of its prognostic value.

A comprehensive review of the pathophysiology of PPL (3-pore model revisited), methods of quantification, dialysate protein composition, and impact on clinical outcomes is presented herein. The author summarizes a brief analysis of associated cardiovascular disease and nutritional consequences, exploring the controversial cause-effect on mortality and technique failure.

Therapeutic modalities aiming to reduce PPL (angiotensin-converting enzyme inhibitors [ACEI]s and vitamin D therapies) were explored, although it is unclear whether PPL represents a valid therapeutic target or, on the other hand, is solely a manifestation of endothelial dysfunction.
Spontaneous Fracture in Intramural and Intra-Abdominal Segments of Peritoneal Dialysis Catheters Presenting as Outflow Failure
Authors: Wadhawan Ashna , Saxena Ramesh
Published: May 2019

We herewith report 2 unusual cases of spontaneous peritoneal dialysis (PD) catheter fracture in intramural and intra-abdominal segments, respectively, in PD patients with long vintage. There were no associated infections or mechanical trauma. The patients presented with PD catheter outflow failure. Both the patients had their catheter replaced and resumed PD without any further issues. Probable causes and comparison with the reported cases are discussed.
HOW TO MANAGE THE ONLINE EXPERIENCE CONCERNING TRANSACTIONAL AND EXPERIMENTAL CUSTOMERS: CASE OF E-FASHION SECTOR
Authors: Castro-Lopez Adrian , Vazquez-Casielles Rodolfo , Puente Javier
Published: May 2019

The online fashion and textile sector is growing in recent years, becoming one of the online sectors with the highest volume of business. However, the bibliography on e-service quality and its consequences in this sector has been underdeveloped in the last years. This paper presents a model that incorporates the direct and indirect effects of e-service quality (utilitarian and hedonic experience) on satisfaction and loyalty of two segments of customers: transactional and online experimental customers. This research focuses on six online sale platforms, and it has been tested with data on 405 regular customers. The study also develops a model that incorporates the direct and indirect effect of e-service experiences on satisfaction, positive WOM, repurchase intention and price tolerance. The findings indicate that direct and indirect effects of e-service quality on satisfaction and loyalty are different for each segment of customers. While utilitarian quality is more relevant for those customers that only search for information, hedonic quality is especially significant for experiential customers.
Light Curves and Rotational Properties of the Pristine Cold Classical Kuiper Belt Objects
Authors: Thirouin Audrey , Sheppard Scott S.
Published: May 2019

We present a survey of the rotational and physical properties of the dynamically low inclination Cold Classical (CC) trans-Neptunian objects (TNOs). The CCs are primordial planetesimals and contain information about our solar system and planet formation over the first 100 million years after the Sun’s formation. We obtained partial/complete light curves for 42 CCs. We use statistical tests to derive general properties about the shape and rotational frequency distributions of the CCs and infer that they have slower rotations and are more elongated/deformed than the other TNOs. On the basis of the full light curves, the mean rotational period of the CCs is 9.48 ± 1.53 hr compared to 8.45 ± 0.58 hr for the rest of the TNOs. About 65% of the TNOs have a light-curve amplitude below 0.2 mag compared to the 36% of CCs with small amplitude. We present the full light curve of one likely contact binary, 2004 VC131, with a potential density of 1 g cm−3 for a mass ratio of 0.4. We have hints that 2004 MU8 and 2004 VU75 are perhaps potential contact binaries, on the basis of their sparse light curves, but more data are needed to confirm this finding. Assuming equal-sized binaries, we find that ∼10%–25% of the CCs could be contact binaries, suggesting a deficit of contact binaries in this population compared to previous estimates and to the (∼40%–50%) possible contact binaries in the Plutino population. These estimates are lower limits and may increase if nonequal-sized contact binaries are considered. Finally, we put in context the results of the New Horizons flyby of 2014 MU69.
Thermo-compositional Diabatic Convection in the Atmospheres of Brown Dwarfs and in Earth’s Atmosphere and Oceans
Authors: Tremblin P. , Padioleau T. , Phillips M. W. , Chabrier G. , Baraffe I. , Fromang S. , Audit E. , Bloch H. , Burgasser A. J. , Drummond B. , González M. , Kestener P. , Kokh S. , Lagage P.-O. , Stauffert M.
Published: May 2019

By generalizing the theory of convection to any type of thermal and compositional source terms (diabatic processes), we show that thermohaline convection in Earth’s oceans, fingering convection in stellar atmospheres, and moist convection in Earth’s atmosphere are derived from the same general diabatic convective instability. We also show that “radiative convection” triggered by the CO/CH4 transition with radiative transfer in the atmospheres of brown dwarfs is analogous to moist and thermohaline convection. We derive a generalization of the mixing-length theory to include the effect of source terms in 1D codes. We show that CO/CH4“radiative” convection could significantly reduce the temperature gradient in the atmospheres of brown dwarfs similarly to moist convection in Earth’s atmosphere, thus possibly explaining the reddening in brown dwarf spectra. By using idealized 2D hydrodynamic simulations in the Ledoux unstable regime, we show that compositional source terms can indeed provoke a reduction of the temperature gradient. The L/T transition could be explained by a bifurcation between the adiabatic and diabatic convective transports and seen as a giant cooling crisis: an analog of the boiling crisis in liquid/steam-water convective flows. This mechanism, with other chemical transitions, could be present in many giant and Earth-like exoplanets. The study of the impact of different parameters (effective temperature, compositional changes) on CO/CH4radiative convection and the analogy with Earth moist and thermohaline convection is opening the possibility of using brown dwarfs to better understand some aspects of the physics at play in the climate of our own planet.
Testing of the Taylor Frozen-in-flow Hypothesis at Electron Scales in the Solar Wind Turbulence
Authors: Huang S. Y. , Sahraoui F.
Published: May 2019

In single-spacecraft observations the Taylor frozen-in-flow hypothesis is usually used to infer wavenumber spectra of turbulence from the frequency ones. While this hypothesis can be valid at MHD scales in the solar wind because of the small phase speeds of the fluctuations in comparison with the solar wind flow speed, its validity at electron scales is questionable. In this paper, we use Cluster data to verify the validity of the Taylor hypothesis in solar wind turbulence using the test proposed in Sahraoui et al. based on the assumption that the spectral breaks occur at ρ
i and ρ
e. Using a model based on the dispersion relation of the linear whistler mode and the estimated ratios of the spectral breaks of the magnetic energy observed in the free-streaming solar wind, we find that 32% of the events would violate the Taylor hypothesis because of their high frequency (in the plasma rest frame) compared to the Doppler shift

·

(∣ω
plas/k·V ∣ > 0.5). Furthermore, the model shows that those events would correspond to whistler modes with propagation angles θ
kB ≤ 68°. The limitations of the method used and the implications of the results on future spacecraft measurements of electron-scale turbulence are discussed.
Numerical Study of Inflationary Preheating with Arbitrary Power-law Potential and a Realization of Curvaton Mechanism
Authors: Jiang Jie , Liang Qiuyue , Cai Yi-Fu , Easson Damien A. , Zhang Yang
Published: May 2019

During inflationary preheating, the energy stored in the inflaton field is rapidly converted into excitations of other entropy fields. This stage is characterized by exponential particle production due to parametric resonance and is notoriously difficult to analyze using analytic methods. We develop a detailed numerical simulation to investigate inflationary preheating when the potential of the inflaton is a power-law function with arbitrary power index. To achieve a successful graceful exit from a primordial inflationary phase to a smooth, oscillatory phase during preheating, we assume the inflaton potential reduces to a quadratic function in the infrared regime, which may be regarded as a mass term at low-energy scales. With this simplification, our numerical method may be applied to unconventional chaotic inflation models. To demonstrate its validity, we numerically analyze the preheating stage of axion-monodromy inflation, which is inspired by string theory. By performing perturbation analyses, our result shows that the power spectrum of primordial curvature perturbation can be dominated by fluctuations of entropy field rather than those of inflaton, which can be regarded as a particular realization of the curvaton mechanism through a preheating process.
Revision der Nematopogon adansoniella-Artengruppe mit Beschreibung einer neuen Art aus den Bergregionen Süditaliens (Lepidoptera, Adelidae)
Authors: Bryner Rudolf , Huemer Peter
Published: May 2019

Das ursprünglich aus den Südwestalpen beschriebene TaxonNematopogonadansoniella(de Villers, 1789) wird neu bewertet. Auf Grund von DNA-Barcodeuntersuchungen sowie morphologischen Merkmalen wirdNematopogonprolaiHartig, 1941 aus dem Apennin (Mittelitalien) als eigenständige Art anerkannt und ein Lectotypus wird festgelegt. Als weitere, kryptische Art wirdNematopogongarganellussp. nov.vom Monte Gargano (Puglia) und aus der Basilicata (Süditalien) neu beschrieben. Die morphologischen und genitalmorphologischen Unterscheidungsmerkmale der drei Arten werden aufgezeigt und, soweit bekannt, Angaben zu Verbreitung, Lebensraum und Bionomie gemacht.
Contrecoups. Représentations et pratiques de la violence des femmes, Le Caire, 2010-2015
Authors: Lachenal Perrine
Published: May 2019

La révolution égyptienne a marqué un tournant majeur dans l’appréhension de l’usage de la violence par les femmes en venant bouleverser, en la politisant, la compréhension du harcèlement sexuel. À mesure que les violences sexuelles s’intensifiaient sur la place Tahrir, les techniques de combat se formulaient comme légitimes ressources féminines. La perception que la ville du Caire serait devenue dangereuse a contribué par la suite à accélérer la diffusion des pratiques féminines de défense, encourageant des passages à l’acte inédits. La période de restauration autoritaire se caractérise quant à elle par une instrumentalisation et une dépolitisation de la « cause des femmes ».
Des réseaux informels à la managérialisation : une association de femmes dans la Tunisie (post) révolutionnaire
Authors: Kebaïli Sélima
Published: May 2019

À partir d’une enquête de terrain qui combine observations, entretiens et exploitation d’archives, l’article analyse les transformations, entre 2011 et 2016, d’une association tunisienne de femmes à référent islamique. Créée à l’initiative d’un collectif informel de femmes préexistant à la révolution, et liées par l’expérience partagée de la répression anti-islamiste, l’association s’engage dans un processus de « managérialisation ». La quête de l’accès aux bailleurs de fonds internationaux ainsi que les transformations des rapports de force politiques à l’échelle nationale infléchissent alors les stratégies de l’association aboutissant à la neutralisation des connotations politiques du référent à l’islam.
L’hybridation des instruments de gestion. L’exemple du pilotage de la performance universitaire en France
Authors: Mériade Laurent
Published: May 2019

Si le mimétisme des instruments de gestion a été bien illustré notamment dans les organisations publiques, leur « hybridation » reste encore à définir conceptuellement. Dans cet article, nous proposons d’étudier comment les instruments de gestion s’articulent et se combinent entre eux. Pour cela, à travers l’exemple des connexions entre le budget et les instruments de pilotage de la performance universitaire d’un IUT 1 , la théorie de la PET 2 nous permet de circonscrire les premiers contours d’un processus d’hybridation instrumentale.
Implementation of Flipped Classroom Model and Its Effectiveness on English Speaking Performance
Authors: Abdullah Mohamad Yahya , Hussin Supyan , Ismail Kemboja
Published: May 2019

In this study, combined method using pre and post oral proficiency tests, observation, and focus group interviews were used to examine the effectiveness of using flipped classroom model on English speaking performance. The study population consists of 27 undergraduate students who were attending the course of Advanced Communication Skills, in the academic year of 2018. A purposeful sampling technique, specifically quasi-experimental procedure was employed in this study. The analysis of quantitative and qualitative data showed that the application of FCM was an effective approach in the EFL speaking classroom. The results of paired-sample t-test indicated that there was a significant difference between pre and post oral proficiency tests t (26) = -14.83, p<0.001. Moreover, it was found that students’ involvement and willingness to participate in the English conversational tasks and their level of commitment and English speaking performance have increased gradually. In light of the findings, the study recommended encouraging teachers to employ modern technologies in their teaching strategies, particularly FCM.
Smartphone Applications as a Teaching Technique for Enhancing Tertiary Learners' Speaking Skills: Perceptions and Practices
Authors: Abugohar Mohammed Abdulgalil , Yunus Kamariah , Rashid Radzuwan Ab
Published: May 2019

Utilizing technology and the Internet to keep up with the 21st century language teaching and learning has become trendy in this digital era, highlighting promising features that are expected to tackle one of the most demanding crucial skills in English as a foreign language (EFL) context; yet a difficult one to master; that is, speaking English accurately, confidently and fluently. This study aims at investigating teachers’ perceptions and the current actual practices of utilizing a package of three categories of smartphone applications as a prescribed teaching technique with the purpose of fostering Saudi tertiary students' oral skills, correlating these perceptions with actual classroom practices. Adopting a mixed-mode approach, the data for this study were gleaned from two data collection instruments– an electronic questionnaire designed using SurveyMonkey as a platform, and encoded data from focus group discussion. On receiving 45 complete responses, the IBM SPSS (V24.0) was used to do the statistics, whereas the data from the discussion were thematically analysed. The findings revealed that the majority of participants have high, inspiring positive perceptions of using smartphone applications in teaching speaking. Based on the data obtained, it is concluded that despite EFL teachers' high positive perceptions of smartphone applications used for promoting adult learners' speaking skills, classroom practices reveal weaknesses and insufficient actual experiences. Pedagogically, the study recommends innovating, implementing, and integrating smartphone applications in teaching oral skills, along with drilling teachers and learners on how to effectively utilize them.
Current State of ICT in Healthcare Delivery in Developing Countries
Authors: Omotosho Adebayo , Ayegba Peace , Emuoyibofarhe Justice , Meinel Christoph
Published: May 2019

Electronic health is one of the most popular applications of information and communication technologies and it has contributed immensely to health delivery through the provision of quality health service and ubiquitous access at a lower cost. Even though this mode of health service is increasingly becoming known or used in developing nations, these countries are faced with a myriad of challenges when implementing and deploying e-health services on both small and large scale. It is estimated that the Africa population alone carries the highest percentage of the world’s global diseases despite its certain level of e-health adoption. This paper aims at analyzing the progress so far and the current state of e-health in developing countries particularly Africa and propose a framework for further improvement.
Gamification Smartphone Application for Leg Physical Therapy
Authors: Kongcharoen Jinda , Pruitikanee Siwipa , Puttinaovarat Supattra , Tubtiang Yanin , Chankeaw Pattarakorn
Published: May 2019

The need to treat illnesses or deterioration of the legs caused by accidents, rheumatism, muscular weakness, paralysis or bone diseases has increased. Paraplegic patients need physical therapy to mitigate their condition. This study developed a gamification smartphone application for leg physical therapy. The application was implemented for patients using Android Operating System smartphones. The smartphone was attached to the walking support equipment. The accelerometer sensor of the smartphone was utilized to measure distance, time, and number of steps. The application acquired data from the sensor, and processed and stored the data in a server, to enable assessment of critical conditions. Moreover, this system would report the evaluation of physical therapy on a weekly basis. Alerts of physiotherapy treatment could be set in this application. The advantages of the application include increasing the patient’s motivation for the therapy, performed by themselves at home, and the results could be used for planning treatments by a physician.
Interactive Approach to Learning of Sorting Algorithms
Authors: Mavrevski Radoslav , Traykov Metodi , Trenchev Iavn
Published: May 2019

Today we live in a society of high technologies, advanced information and com-munication systems in every field, including education. So, in modern education, teachers make full use of the possibilities of modern Information and Communi-cation Technologies (ICT). In this case, the attitude of the teachers towards the use of computers, to achieve the educational goals, is very important. To have the technologies sustained and significant effect, students in secondary and higher schools need to understand how to use them. The goal of this article is to help of students in secondary and higher schools to acquire enough practical program-ming skills and to learn the sorting algorithms, i.e. the article considers basic sort-ing algorithms. We developed and describe here software with name “Visual sorting” that shows visual, the execution of the basic sorting algorithms: Bubble sort; Selection sort; Insertion sort; Merge sort. Also, our software provides inter-active tracking of the performance (step by step) of different sorting algorithms.
Balance the Energy Consumption of Geographic Hashing Location Service in Wireless Sensor and Actor Networks
Authors: Wang Zhaolin , Xu Zhezhuang , Xie Renxu , Yan Haotian
Published: May 2019

Location service is an efficient solution to handle actor mobility in wireless sensor and actor networks. Geographic hashing location service (GHLS) is a flat hashing-based protocol which has better energy efficiency than other location service protocols. Nevertheless, GHLS suffers from unbalanced energy consumption due to the fixed hashed region. In this paper, we propose a new protocol termed as GHLS-R2 to achieve load balance in two aspects: location server rotation and energy-aware geographic routing. Simulation results show that GHLS-R2 protocol can effectively balance the energy consumption, and hence prolong the network lifetime significantly.
Analyzing the Customers' Dynamic Confusion in Telecommunication Networks Share Game
Authors: Omar Driss Ait , Garmani Hamid , El Amrani Mohamed , Baslam Mohamed , Fakir Mohamed
Published: May 2019

In this article, the authors have developed a simple oligopolistic model to formalize the interactions between service providers and end-users by considering that the rationality of customers varies over time. This article assessed the impact of the dynamics of consumer confusion on the competition and profitability of service providers who are considered rational and competitive with one another to maximize their respective gains in the face of a confused fraction of consumers while others are not confused. This article shows the existence and uniqueness of the Nash equilibrium. The authors used the best response dynamic algorithm for learning Nash equilibrium. We have shown that when the number of confused customers is large, the ISP interest this and they offer moderately high prices with low quality of service. On the other hand, over time, rationality increases, forcing the ISPs to change their strategies by offering better services so that their demand increases. We also add that when customer behavior changes quickly, the ISPs follow clearer strategies with customer satisfactory services.
A Survey of Efficient Trust Management Schemes in Mobile Ad-Hoc Network
Authors: Kaur J. , Kaur S.
Published: May 2019

Mobile Ad Hoc Networks (MANETs) are comprised of an arrangement of self-sorting mobile hosts furnished with wireless interaction devices gathered in groups without the need of any settled framework as well as centralized organization to maintain a system over radio connections. Every mobile node can react as a host and also, the router freely utilizes the wireless medium inside the correspondence range to deal with the interaction between huge quantities of individual mobile nodes by framing a correspondence system and trading the information among them without using any described group of the base station. A trust-based model in MANET estimates and sets up trust relationship among objectives. Trust-based routing is utilized to keep away data from different attackers like a wormhole, DOS, black-hole, selfish attack and so forth. Trust can be executed in different steps like reputation, subjective rationale and from the supposition of the neighboring node. A trust estimation approach not just watches the behavior of neighbor nodes, additionally it screens the transmission of the information packet in the identification of the route for exact estimation of trust value. A survey is carried out to find some of the limitations behind the existing works which has been done by the researchers to implement various approaches thus to build the trust management framework. Through the survey, it is observed that existing works focused only on the authenticated transmission of the message, how it transmits packets to the destination node securely using a trust-based scheme. And also, it is observed that the routing approach only focused on the key management issues. Certain limitation observed in the implemented approaches of existing work loses the reliability of framework. Thus, to withstand these issues it is necessary to establish a reliable security framework that protects the information exchanged among the users in a network while detecting various misbehaving attacks among the users. Confidentiality, as well as the integrity of information, can be secured by combining context-aware access control with trust management. The performance parameters should be evaluated with the previous works packet delivery ratio, packet drop, detection accuracy, number of false positives, and overhead.
Understanding Customer Perceived Mall Values
Authors: Kashyap Anil Kumar , Kumar Ajay
Published: May 2019

Value-based business strategies are acquiring attention throughout the world. Retailing in India has distinct challenges. The diversity in its population largely affects its retail characteristics. Understanding customer perceived values and developing appropriate strategies is the only way to succeed. The proposed study is designed to explore and validate the customer perceived mall values in an Indian context. To accomplish the objectives, samples were taken from malls located in central India. A total of 257 samples were utilised to conclude the results. As the factor analysis remains a dynamic field of research studies in marketing, EFA and CFA is used to examine the data. The study results show seven customer-perceived mall values: convenience value, epistemic value, exploration value, monetary saving value, self-gratification value, social interaction value, and enjoyment-seeking value. At the end of the study useful managerial implications are provided to mall managers and operators.