bluuebunny/crossref_metadata_2025 huggingface dataset:
SIKAP GENERASI MILLENIALS TERHADAP IKLAN ONLINE DALAM E-COMMERCE DI SITUS YOUTUBE
Authors: Wilyastuti Wilyastuti , Kemalasari Putri Reno , Sudodo Yandri
Published: March 2020

Penelitian ini bertujuan untuk menguji pengaruh iklan terhadap sikap generasi millenials. Penelitian ini menggunakan jenis penelitian Asosiatif Kuantitatif. Metode pengumpulan data dilakukan dengan membagikan kuesioner pada 100 responden yaitu mahasiswa fakultas ekonomi dan bisnis Universitas Teknologi Sumbawa. Teknik pengambilan sampel menggunakan convenience sampling dan purposive sampling. Analisis data yang digunakan yaitu analisis regresi linier berganda. Berdasarkan hasil penelitian dapat disimpulkan bahwa terdapat pengaruh positif dan signifikan antara faktor informativeness dari iklan online dalam e-commerce terhadap sikap. Terdapat pengaruh positif dan signifikan antara faktor entertainment dari iklan online dalam e-commerce terhadap sikap generasi millenials. Berbeda dengan faktor irritation dari iklan online dalam e-commerce yang tidak berpengaruh signifikan terhadap sikap generasi millenials.Kunci: Informativeness, Entertainment, Irritation dan Sikap (Attitude)
Pengalaman Perawat Instalasi Gawat Darurat Merawat Pasien Do Not Resuscitate
Authors: Lintang Christine Stephanny , Maramis James Richard
Published: March 2020

Latar belakang: DNR atau Do Not Resuscitate merupakan keputusan untuk tidak melanjutkan tindakan CPR, keputasan diambil setelah 30 menit tidak menunjukan ada Return of spontaneous circulation (ROSC) dari pasien. Tujuan: Mengetahui pengalaman perawat IGD merawat pasien do not resuscitate pada fase perawatan end of life di Ruangan IGD RSUP Prof. Dr. R. D. Kandou Manado. Metode Penelitian penelitian kualitatif dengan pendekatan fenomenologi. Pengambilan sampel menggunakan teknik purposive sampling berdasarkan kriteria inklusi. Teknik pengumpulan data dengan In-depth interview. Partisipan dalam penelitian ini sebanyak empat orang perawat. Hasil: empat tema yang didapati yaitu: Penentuan DNR, Protap Penanganan Pasien, Pengambil Keputusan DNR, dan Proses Setelah DNR Kesimpulan: Pengambilan keputusan DNR (Do Not Resuscitate) yang tepat memerlukan kolaborasi antara dokter dan perawat agar penanganan tepat sasaran sesuai tujuan berfokus pada prioritas tidak dapat membuat keputusan secara sepihak, keterlibatan keluarga dalam penentuan DNR juga penting.

Kata kunci : Pengalaman, Merawat, Do Not Resucitate, Gawat Darurat

 

 

Background: DNR or Do Not Resuscitate is a decision not to continue the CPR action; the decision taken after 30 minutes does not indicate the Return of Spontaneous Circulation (ROSC) of the patient. Objective: To find out Emergency Department nurses caring expriences for Do Not Resuscitate patients in the end of life treatment phase at the RSUP Prof. Dr. R. D. Kandou Manado. Method: Qualitative research methods with phenomenological approaches was implemented in this research. Purposive sampling technique was used based on inclusion criteria. Data collection techniques with In-depth interviews. The participants of this study were four nurses. Result: Four themes emerged, namely determination of DNR Status, Patient handling procedures, DNR status decision maker, and process following DNR status announced.  Conclusion: The proper decision of Do Not Resuscitate requires collaboration between doctors and nurses so that the right handling of the patients, objectives of the treatment, and in order to focus on priorities will not based on unilateral decisions. Family involvement in determining DNR is also important.

Keywords : Experience, Caring, Do Not Resucitate, Emergency Room
Efecto de la temperatura, tiempo y concentración de enzima comercial (Viscozyme L.) sobre el rendimiento de extracción de aceite de semillas de girasol (Helianthus annuus L.)
Authors: Núñez Alejos Luis Alberto
Published: March 2020

Se evaluó los efectos de un tratamiento enzimático sobre el rendimiento de extracción de aceite de semillas de girasol (Helianthus annuus L.), con la enzima comercial Viscozyme L. que es un complejo multienzimático producido por Novozyme. Se realizó la determinación de la composición química proximal del endocarpio o pipa, se acondicionó el pH a 5,9 y se ajustó la relación sólida/líquido a 1:6 (solución acuosa con 60% de agua) para el proceso de extracción, se evaluó el rendimiento en función de la temperatura, tiempo y concentración de enzima, mediante un diseño experimental trifactorial 3*3*3 con tres repeticiones y la prueba Tukey al 5%. La pipa de girasol contenía 40,30% de aceite, 23,75% de proteína y 8,43% de fibra. Las condiciones óptimas para la extracción fueron: temperatura de 50 ºC, tiempo de hidrólisis enzimática de 4 horas y concentración de enzima de 0,8%; obteniéndose 52,5% de aceite, que tuvo un peso específico a 20 ºC de 0,921 g/mL, índice de refracción (20 ºC) de 1,4736, índice de acidez (mg de KOH/g de aceite) de 1,85, ácidos grasos libres de 0,93, índice de yodo de 130 g I /100 g de aceite, índice de saponificación de 189 mg KOH g , índice de peróxidos 3,3 meq O  Kg , y las características sensoriales se mantuvieron estables. Se concluye que la incorporación de un tratamiento enzimático es una alternativa factible para extraer el aceite de semillas de girasol bajo condiciones suaves de proceso, mejorando el rendimiento de extracción.
Nutrición total en la alimentación del pollo de carne
Authors: Del Carpio Hernández Sergio
Published: March 2020

El presente trabajo de investigación se realizó con el objetivo de reemplazar al antibiótico promotor del crecimiento en la dieta de pollos de carne por principios nutracéuticos sin atentar contra el rendimiento. Se emplearon 300 pollos, de ambos sexos, en un ensayo de 7 semanas de duración en el que se evaluaron los siguientes tratamientos: T1 (Dieta tradicional sin antibiótico promotor del crecimiento), T2 (Dieta tradicional con antibiótico promotor del crecimiento), T3 (Dieta con nutracéuticos, sin antibiótico promotor del crecimiento) y T4 (Dieta con nutracéuticos, con antibiótico promotor del crecimiento). Cada pollito fue asignado aleatoriamente a cada uno de los tratamientos. Se prepararon raciones iso – energéticas e iso – proteicas para cubrir las necesidades nutritivas de las aves. El análisis estadístico se hizo a través de un Diseño Irrestrictamente al Azar con sub muestreo. Los principios nutracéuticos sin antibiótico promotor del crecimiento propiciaron mayor consumo de alimento, mayores incrementos de peso y más eficiente utilización de los alimentos; pero mérito económico más alto, debido al encarecimiento de las raciones. En cuanto a eficiencia biológica las fuentes nutracéuticas evaluadas si pueden reemplazar al antibiótico promotor del crecimiento; siendo recomendable realizar la investigación pertinente para mejorar el mérito económico.
IMPLEMENTASI MODEL-VIEW-CONTROLLER (MVC) PADA UJIAN ONLINE MELALUI PENERAPAN FRAMEWORK CODEIGNITER
Authors: Kelen Laberto
Published: March 2020

Pendidikan termasuk salah satu bidang yang turut mengalami peningkatan dalam konteks penyelenggaraan ujian. Ujian konvensional yang masih menggunakan kertas perlahan-lahan mulai ditinggalkan. Penyelenggaraan ujian yang terkomputerisasi pun menjadi terobosan yang bukan lagi baru di zaman ini.Model, view, controller (MVC) merupakan sebuah arsitektur pengembangan aplikasi yang menekankan kepada 3 komponen penting. Ketiga komponen tersebut masing-masing memiliki fokus perhatian, tanggung jawab dan logika sehingga mempercepat kinerjanya. Framework codeigniter merupakan salah satu framework terkenal yang sudah mendukung MVC. Dengan framework codeigniter, pengembangan aplikasi web dapat dilakukan dengan cepat. Sekolah Menengah Kejuruan Informatika Uyelindo Kupang pun merupakan salah satu sekolah dengan basis kejuruan informatika komputer. Sekolah ini dapat menerapkan ujian yang terkomputerisasi dengan sebuah sistem yang dinamakan sistem ujian online. Sistem ini dibangun dengan framework codeigniter.Hasil implementasinya adalah sebuah sistem ujian yang berbasis web dengan framework codeigniter yang dapat mempermudah guru dan siswa dalam melaksanakan ujian yang fleksibel. Ujian ini dapat dilaksanakan dimana saja dengan waktu yang sudah ditetapkan oleh guru dan tidak lagi menggunakan kertas sebagai media pelaksanaan ujian. Harapan dengan adanya sistem ujian seperti ini, proses tatap muka di kelas menjadi lebih efektif dan guru dapat mengetahui kemampuan siswa dengan kuis yang bisa dikerjakan dari rumah.
Rancang Bangun Sistem Informasi Desa Berbasis Website (Studi Kasus Desa Netpala)
Authors: Jimi Asmara
Published: March 2020

Abstract

The development of the village government are now either in the presence of village funds from the central government that aim to advance, village the current rural development related to information technology support, almost luminance village need to improve information technology services to the.One example from the village, about the internet the internet is not currently only enjoyed by urban residents but comes to. village communityThe difficulty of access to information that is keen to develop research make village based information system website for the purpose of improving public services, village access to information can be obtained easily, for the villagers, promotion , potential of the village , population area and forth with, literature in a interview observation, field and drafting, system the website based information system able to improve services to the community so that information to the public can be accessed easily and accurately.
GAME RANCANG BANGUN KOTA SEDERHANA BERBASIS ANIMASI 2DIMENSI
Authors: Jimi Asmara
Published: March 2020

Perkembangan dalam dunia game sangat pesat dimulai dari visualisasi gambar sampai dengan pergerakan objek gambar dari game tersebut. Terdapat 3 (tiga) jenis tampilan visualisasi game yang sekarang marak didunia hiburan terutama permainan game yaitu, 1 dimensi, 2, dimensi dan 3. Dengan memiliki jenis gambar sampai warna yang menarik untuk dimainkan. Dalam studi kasus berikut penulis akan membuat sebuah game dengan berbasis animasi 2 dimensi yang membutuhkan daya pikir, kecermatan, sampai imajinasi seorang pemain.Hasil yang diperoleh dari penelitian ini adalah untuk meningkatkan daya imajinasi pemain, merancang dan membangun sebuah pembangunan kota dengan material-material object yang telah ada sebelumnya, dengan penambahan bonus biaya pada saat bangunan kota telah dibangun yang bertujuan agar user dapat membeli material-material objek yang ada sesuai harga dan jumlah uang yang dikumpulkan oleh user dalam permainan game pembangunan kota berbasis animasi 2 dimensi.
DIMENSIONS OF LEARNING ORIENTATION AND ITS IMPACT ON ORGANIZATIONAL PERFORMANCE AND COMPETITIVENESS IN SMES
Authors: Vega Martinez Javier Eduardo , Martinez Serna María del Carmen , Parga Montoya Neftalí
Published: March 2020

There is evidence that indicate a positive relationship of learning orientation (LO) with organizational performance in SMEs of emerging economies. However, there are only few studies that investigate how each one of the dimensions of learning orientation (LO) contributes to variables of results such as competitiveness and organizational performance. The purpose of this study is to analyze the direct effects of each dimension of the construct (LO) with organizational performance and competitiveness, from a quantitative cross-sectional study implemented in 400 SMEs of Aguascalientes city, Mexico using SEM technique. The findings reveal that there is a direct and significant relationship between commitment to learning and shared vision with competitiveness; open-mindedness turned out to have a non-significant positive relationship with competitiveness. While the relationship of open-mindedness and commitment to learning have a positive and significant influence on organizational performance, not so shared vision that has a negative and significant influence on organizational performance. The originality of this paper, is that there is limited contributions of the relationship of LO with each dimension of competitiveness, and performance in SMEs worldwide. Among the implications found it is that the existing evidence may result different in other economies and large businesses.
Peak Temperatures of Large Solar X-Ray Flares and Associated CME Speeds and Widths
Authors: Ling A. G. , Kahler S. W.
Published: March 2020

We recently repeated an earlier analysis by Garcia showing that large (≥M3.0) solar X-ray flares associated with solar energetic particle (SEP) events have significantly lower peak X-ray flux ratios R = (0.04–0.5 nm)/(0.1–0.8 nm), proxies for flare peak temperatures, than those without SEP events. As we expect SEP events to be produced by shocks ahead of fast coronal mass ejections (CMEs), a smaller R for an X-ray flare of a given peak flux Fp should also be more likely to be accompanied by a fast (Vcme > 1000 km s−1) CME. We confirm this expectation, examine the role played by the ratios R in correlations between Fp and CME speeds Vcme, and then compare CME widths W, Vcme, and R with each other. We consider an apparent conflict between a global scaling model of eruptive events showing Vcme scaling with higher R and our confirmation that the Garcia analysis implies that faster CMEs are associated with flares of lower R. The R values are examined for 16 large flares of the well-studied AR 12192, for which nearly all flares had no associated CMEs. Those flares share the same high values of R as other active region (AR) flares with no CMEs. We also find that small (<M3.0) flares of filament eruptions leading to SEP events share the lower R values of larger flares with fast CMEs.
Improving Glycemic Control and Quality of Life With Diabetes Self-Management Education: A Pilot Project
Authors: Andrich Djurdja , Foronda Cynthia
Published: March 2020

Diabetes self-management education and support (DSME/S) has been demonstrated as an effective intervention and a billable service; however, DSME/S has yet to be successfully translated and diffused into mainstream practice. This project sought to improve glycemic control (measured by A1C or fasting blood glucose [FBG]) and quality of life (QOL) of Medicare patients age 65 years and older with type 2 diabetes (T2DM) using DSME/S. DSME/S included information sharing between patients and providers, psychosocial support, behavioral support with lifestyle modification, multi-disciplinary integration, and care coordination. Patient-specific data were compared before and 4 weeks after project implementation. Use of DSME/S increased by 15% (
p
< .005). Participants demonstrated a statistically significant decrease in mean FBG and a statistically significant increase in QOL. This project demonstrated the successful translation of evidence related to DSME/S into practice through improving diabetes care and promoting continuing education for all of the providers.

[
J Contin Educ Nurs
. 2020;51(3):119–123.]
Implementing a Nursing Professional Model to Improve Staff Nurse Engagement and Teamwork
Authors: Sohal Lakhbir
Published: March 2020

Background:

Evidence suggests a direct correlation between high levels of staff engagement and teamwork improves quality outcomes for the organization.

Method:

This evidence-based change of practice project applied the elements of a professional practice model in a medical-surgical telemetry unit to measure the effect on nurse engagement and teamwork.

Results:

Implementation of a professional practice model resulted in improved engagement on the unit, an improved culture of teamwork, a decrease in the number of patient falls, and an increase in staff satisfaction.

Conclusion:

The implementation and enculturation of a professional practice model demonstrate the intent to capture the hearts and minds of nurses and create an environment in which nurses are engaged and a culture of teamwork exists. An engaged workforce helps encapsulate a safe, efficient, and effective environment not only for nurses but also for their patients.

[
J Contin Educ Nurs
. 2020;51(3):124–131.]
Educational Intervention Improves Communication Abilities of Nurses Encountering Workplace Incivility
Authors: Howard Matthew S. , Embree Jennifer L.
Published: March 2020

Background:

As the issues of incivility, lateral and horizontal violence, and bullying continue in nursing, strategies are needed to address these disruptive behaviors. Educational activities raise awareness of these issues and can improve the ability to reduce the frequency and overall impact of incivility.

Method:

This study used a pretest/posttest quasiexperimental mixed-methods design to improve dialogue and interpersonal engagement and to create behavioral change. The Workplace Civility Index (WCI) was used to measure interventional success.

Results:

WCI scores improved significantly (
p
< .00001) for the experimental group postintervention. In contrast, the WCI scores decreased significantly for the control group (
p
= .000227). Within the experimental group, all participants noted the successful use of a positive conflict management strategy after the educational intervention.

Conclusion:

Although further research is recommended, this study provided evidence to support the efficacy of an asynchronous provider-directed, learner-paced e-learning educational activity in decreasing incivility and increasing perceived comfort level during critical conversations between nurses.

[
J Contin Educ Nurs
. 2020;51(3):138–144.]
Assessing subsoil void hazards along a road system using H/V measurements, ERTs and IPTs to support local decision makers
Authors: Pazzi Veronica , Ceccatelli Mattia , Gracchi Teresa , Benedetta Masi Elena , Fanti Riccardo
Published: March 2020

Between 2008 and 2014, nine sinkholes occurred in northeastern Elba Island (Tuscany, Italy), an area with mostly flat terrain (called “Il Piano”) separating the municipalities of Rio nell’Elba and Rio Marina. The last sinkhole damaged the only road (SP26) between the harbour of Rio Marina and the northwestern part of the island. A bypass was immediately built, but the SP26 remains closed. Considering that sinkholes could be densely clustered in sinkhole prone areas, their detection and forecasting are key aspects of local administrative policies. In this paper, we present the results of an integrated geophysical survey aimed at (i) characterizing the geology of the area surrounding the SP26, and (ii) assessing the subsoil void hazard around the road system to support the decision to replace or restore the SP26. Therefore, for the purposes of this research, 120 singlestation seismic noise measurements were taken following the horizontal‐to‐vertical spectral ratio (H/V) or Nakamura technique, while eight 2D electrical resistivity tomography (ERT) and 17 3D‐ERT/induced polarisation measurements were also carried out in the study area. The H/V method allowed the estimation of the mean thickness of the alluvium, whereas the 2D/3D‐ERTs and IPTs permitted the characterisation of the electrical behaviours of the materials and the localisation of the lenticular sand and gravel bodies within a sandy silt layer. The large amount of collected data made the zonation of the subsoil void hazards possible.
Data acquisition, processing and filtering for reliable 3D resistivity and time‐domain induced polarisation tomography in an urban area: field example of Vinsta, Stockholm
Authors: Rossi Matteo , Dahlin Tbrleif , Olsson Per‐Ivar , Günther Thomas
Published: March 2020

There is an increasing demand for trustworthy engineering geological conceptual models in urban areas due to an increasing trend in the underground infrastructure construction. Good‐quality site investigations can reduce the risk of encountering unexpected geological conditions during construction. Geoelectrical measurements can be used as a tool for providing an overview of the site conditions and serve as a base for planning a geotechnical drilling program and for integration of the results. Geophysical surveys in urban environments may encounter problems due to strict logistical constraints and may be severely affected by electric and electromagnetic noise. Careful processing of the data is necessary to obtain a reliable estimation of the electrical properties of the ground, both electrical resistivity and chargeability.

A large three‐dimensional dataset was acquired in the suburban area of Stockholm (Sweden), with the aim of investigating a weak zone in the crystalline bedrock, which had been pointed out by prior geological and geotechnical surveys. Full waveforms of potential dipoles were recorded and processed for removing harmonic noise and background drift. Moreover, a statistical algorithm for handling the quality of the full‐waveform shapes has been proposed. The goodness‐of‐fit test identifies full waveforms with noise that derives from direct current injections, caused by grounding spots of the adjacent metro line.

The processed dataset is inverted for electrical resistivity and integral chargeability. The results image a large three‐dimensional volume of the underground. The inverted distribution of geophysical quantities marks out the presence of a wide zone of weak rock, which was not identified by geotechnical probing in the site investigation but documented during the construction phase. Such zones can potentially cause severe problems during the construction of underground infrastructure.
Proteostasis and Neurodegeneration
Authors: Rahman Md. Ataur , Rahman Md Saidur , Uddin Md Jamal , Mamun-Or-Rashid A. N. M. , Rahman Md. Rezanur , Pang Myung-Geol , Rhim Hyewhon
Published: March 2020

Proteostasis or protein homeostasis consists of a complex interrelated cellular system that controls several steps of protein quality and function from the initial step of synthesis as well as folding, and eventually degradation over enormous biochemical pathways. Proteostasis involves controlling protein folding, modification of the post-translational protein, and degradation of misfolded protein. However, the failure of proteostasis has resulted to produce a toxic protein that leads to disrupt aging and neurodegeneration. Additionally, endoplasmic reticulum degradation and autophagy dysfunction may outcome in cellular additional stress that is responsible for cell death. Consequently, proteostasis targets provide an element of a promising neuronal protective therapeutic method to improve the development of these diseases as well. In this chapter, the authors represent the current knowledge regarding how cellular proteostasis interruption contributes to progress neurodegenerative disorders.
The Role of Middle Managers in Knowledge Creation and Diffusion
Authors: Tsironis Loukas K. , Ismyrlis Vasileios
Published: March 2020

The role of middle managers in modern management theory has been already recognized, and this role is considered very important for the functioning of an organization. They have managed to be involved in many aspects of managing, and one of them is the novice field of knowledge management. In this chapter, the role of middle managers in knowledge creation and diffusion is explored and analyzed. A theoretical model of four middle managers' roles affecting the strategy of an organization is examined. The model was tested through a questionnaire in a sample of 241 middle managers of Greek organizations. After the analysis of the data collected, it was deduced that the theoretical model utilized was validated in the sample.
Overtourism
Authors: Carvalho Fatima Lampreia , Guerreiro Manuela , Matos Nelson
Published: March 2020

This chapter conceptualises the notion of overtourism by providing a systematic literature review mapping the existing research knowledge. The mapping exercise benefits from textual data from academic articles on overtourism. The study focuses on measures to counteract overtourism from a marketing perspective. Since tourism is about customers' experiences, understanding overtourism and its aspects is crucial at a time the market growth calls for measures to control this phenomenon. Using online databases and NVIVO 12 software, 66 articles were selected for bibliographic content analysis. Findings highlight the need to work the concept of overtourism in a holistic approach encompassing five dimensions: social, political & governance, marketing & customer experience, economic, and environmental. Results permitted to identify other dimensions; overtourism, symbolic, ethical-moral, cultural. Managing overtourism is challenging because whereas tourism is about customers' experiences, for policy makers overtourism encompasses strategies with collective effects.
Public-Private Partnership for Urban Housing Through Civic Engagement
Authors: Baporikar Neeta
Published: March 2020

Public-private partnership (PPP) is a contractual arrangement between a public agency and a private sector, whereby the private sector performs a public function in accordance with an output-based specification for a specified period of time in return for a financial benefit. The central problem investigated in this chapter is the challenges in urban housing delivery using the public-private partnership approach, to identify concerns and develop a framework to address them. Adopting a qualitative research strategy and descriptive approach, primary data was collected thru questionnaire administered to selected sample of staff, private partners, and beneficiaries of houses. This research analysed the identified challenges experienced in the urban housing based on the existing literature and theories on PPP. Findings reflect that, despite challenges, there is confirmation that the PPP concept is a catalyst to addressing urban housing delivery by using private investment.
Girls' Child Education Challenges and Solutions in MENA Countries
Authors: Bouzaida Nadia Mansour , Abdelli Mohammed El Amine
Published: March 2020

Worldwide, 132 million girls between 6 and 17 are out of school, more than 21 times the number of girls in school in France. However, every year at school allows a girl to increase her future income by 10% to 20%, which directly contributes to improving her country's growth. That is why, on the occasion of the International Day of the Girl on 11 October, we recall that education is a fundamental right for all children, Article 28 of the 1989 International Convention on the Rights of the Child ratified by 195 countries. A girl's education is recognized as one of the most powerful levers to escape poverty and be emancipated. It is a priority to take action so that millions of girls can go to school. Schooling a girl is about giving her confidence, making her own choices, having a job to build her future. This chapter explores girls' education challenges and solutions in MENA countries.
Teardown Index
Authors: Dahmen Joseph , von Bergmann Jens , Das Misha
Published: March 2020

Replacing older homes with new ones constructed to higher efficiency standards is one way to raise the operating efficiency of building stocks. However, new buildings require large amounts of embodied energy to construct, and it can take years before more efficient operations offset carbon emissions associated with new construction. This chapter looks at the carbon dioxide emission payback period of newly constructed, efficient single-family homes in Vancouver, British Columbia, where the authors find that it takes over 150 years for the operation to equal the embodied carbon associated with the of a typical high-efficiency new home. The findings suggest that current policies aimed at reducing emissions by replacing older homes with new high-efficiency buildings should be reconsidered.
Use of Institutional Repository for Information Dissemination and Knowledge Management
Authors: Rao Madhava
Published: March 2020

The paper is a case study which gives a summary of the experience in disseminating information through an institutional repository at the Automotive Research Association of India, Pune. The paper has proven to cover different aspects of Knowledge Management (KM) and discusses more about Institutional Repository in Knowledge Management perspective. In this paper, we emphasize the need for deploying and share our experience in creating a state-of-art Institutional Repository using the DSpace software. The method of developing the IR, which includes, the installation, defining the communities and collections, content development and management are illustrated. The paper also illustrates the library services and mode of information dissemination to its users by engaging with knowledge management. It also discusses the proposed initiative of incorporating the library database from LibSys and linking the e-Modules from Learning Management System (LMS) to the institutional repository for the benefit of user community at ARAI.
Measuring and Comparing Immersion in Digital Media Multitasking
Authors: Wang Hao , Ou Yang Chien-Wen , Sun Chun-Tsai
Published: March 2020

In terms of digital media usage, immersion refers to user involvement in and focus on a single activity. However, the commonality of multi-tasking raises questions regarding whether one could enjoy immersion when using more than one media at the same time. Self-report questionnaires and eye trackers were used to measure the immersive experiences while playing video games and watching a television program at the same time. While we found evidence of immersion across the two activities while multitasking, some immersion dimensions were significantly weaker. However, we also noted that immersion experiences from multiple media might be cumulative. A possible explanation for our results is that the act of switching between two media compensated for any down time, users could abandon a less attractive medium and switch to the other, resulting in an impression of continuous immersion in the overall multitasking experience. On the other hand, keeping active awareness of other media beyond the current focus might be a primary cause of immersion degradation.
Modification of Service Content for Evolution of Service Platform Ecosystems
Authors: Inoue Yuki , Takenaka Takeshi , Kurumatani Koichi
Published: March 2020

In platform ecosystems, the proper modification of goods provided could promote innovation and fulfill the need for diversity among consumers. However, most platforms in the service industry currently serve merely as intermediaries for existing services. This study aims to clarify how the function of a platform, which brings a modification of the content of services, contributes to the development of the platform ecosystem in service industries. The results of an agent-based simulation that imitates platform-based markets of a service industry reveal that the facilitation of changing the content of services could have negative effects for the platform ecosystem if there are no supportive functions. The authors demonstrate that two supportive platform functions contribute to successful modifications in service content the facilitation of customer involvement improves the sustainability of the ecosystem by increasing profits of platform users, and the support for capturing latent needs extends to the platform-based market.
Effect of shading and nitrogen fertilization on nitrogen metabolism, essential oil content and antimicrobial activity of Achillea millefolium
Authors: Lima Milene Conceição , Da-Silva Cristiane Jovelina , Mariot Marcio Paim , Freitag Rogério Antônio , Serpa Rosana , Ribeiro Gladis Aver , Amarante Luciano do
Published: March 2020

The Achillea millefolium L. is a perennial herb with important antibacterial, antifungal, anti-inflammatory, antitumoral, and antioxidant properties. This research aimed to investigate the effect of shading (75%; black net) and nitrogen fertilization (0, 75 and 150 kg urea ha-1) on the nitrogen metabolism, essential oil yield and antimicrobial activity of A. millefolium at vegetative- and reproductive-stage. The evaluated parameters varied depending on the organ and the phenological stage of the plant considered. Overall, our findings indicated that shading decreased nitrogen assimilation. Decreased activities of nitrate reductase and glutamine synthetase were observed on shaded plants during reproductive and vegetative stages, respectively. Nitrate and total amino acid levels increased in shaded plants at the vegetative stage. Regarding nitrogen supply, the improved nitrogen metabolism and essential oil yield values were accompanied by intermediate concentrations of urea (75 kg ha-1). Plants fertilized with 75 kg urea ha-1 produced the highest amino acids concentration (vegetative stage), ammonium concentration (vegetative stage) and essential oil yield (reproductive stage). Shading or nitrogen supply did not influence the microbial activity of A. millefolium essential oil. However, the essential oil of leaves and flowers were highly effective against fungi and bacteria, especially gram-positive bacteria. In conclusion, the current study showed that full light and 75 kg urea ha-1 enhanced the nitrogen metabolism of A. millefolium in both vegetative and reproductive stages.
On the Local Constitutive Behavior of Friction Stir Welded AISI 304 Stainless Steel Joints
Authors: Srinivas V. Karthik , Lakshminarayanan A.K.
Published: March 2020

The uniaxial tensile test is often used to determine the mechanical properties of a material like its yield strength and elastic limit. However, some of the recent advances in imaging Non Destructive Evaluation (NDE) modalities offer experimental tools which, apart from determining the conventional properties, also make it possible to visualise and map the dynamic strain evolution during monotonic loading and correlate it with the micro mechanisms of deformation. Infrared thermal imaging (IRT) and digital image correlation (DIC) are two such advanced NDE methods which are being widely used in experimental mechanics. Infrared thermal imaging maps the thermal gradient including the dynamic thermal transients that may occur during the tensile testing and is based on the detection of infrared radiation. Digital image correlation, a non-contact optical method based on grey value correlation before and after deformation, maps the magnitude of deformation on the surface of the object under load. In this investigation, the global and local properties of a friction stir welded joint of 304 Austenitic Stainless steel through the simultaneous application of thermal imaging and digital image correlation. By characterising the various stages of tensile deformation, this study enabled correlation of the thermal and strain evolutions and to provide deeper insights into the micro-mechanisms of the associated deformation phenomenon.
Experimental Investigations on Orthogonal Turning of Inconel 718 with TiAlN Coated Tool
Authors: Gobivel K. , Sekar K.S. Vijay , Prabhakaran G. , Elankavi R. Sugin
Published: March 2020

Inconel 718 is a nickel-based super alloy well suited for high-temperature applications encountered in space shuttles, aircraft black box and turbocharger due to their inherent properties. Taking into account of extreme working conditions, efficiency in the process of machining without affecting the nature of the surface integrity with utmost care assumes a lot of importance. In this current study, an attempt has been made to investigate the influence of cutting speed and feed rate on various machining aspects like cutting forces, chip morphology, surface roughness and tool wear during the orthogonal turning of Inconel 718. Also, the work has been focused on feed forces and thrust forces to understand the proper material deformation behaviour and surface integrity.
Microstructural Characteristics and Mechanical Behaviour of AA7075/TiB2 Composite
Authors: Loganathan P. , Gnanavelbabu A. , Rajkumar K. , Ayyanar S.
Published: March 2020

Titanium Boride (TiB2) particles reinforced with aluminum alloy (AA 7075) composites were developed using the two-step stir casting method. TiB2 with aluminium alloy was varied in 5, 10, 15 weight percentages (wt.%) . The mechanical properties of the composites were assessed through density, hardness, tensile and impact. Factography observations were also evaluated with Scanning Electron Microscopy (SEM) and phase identification of the composite was carried out through X-ray diffraction technique (XRD). The XRD pattern of alloy and composites revealed peaks of Al and TiB2 particles and the intensity of TiB2 particles increased with increase in wt. %. Compared to the base matrix, the density and hardness of composites increased with the wt. % of TiB2. Addition of TiB2 particles exhibited grain refinement, thereby improving the mechanical properties. Composite materials exhibited high load bearing capacity due to the strong bonding of TiB2 and matrix material resulting in increased impact energy. The tensile strength of the composite increased with increasing wt. % of reinforcement. The failure in the composites observed were dimpled structure and ridges, voids, and cracks.
Experimental Investigation of Chemical and Tensile Properties of Sansevieria Cylindrica Fiber Composites
Authors: Balaji N. , Balasubramani S , Ramakrishnan T. , Sureshbabu Y.
Published: March 2020

The natural fiber reinforced composites are least expensive material and alternative material of wood, plastic material for the construction and industrial applications. The polymer based composites are used to fabricate the automobile components. The present investigation the composite materials reinforced with sansevieria cylindrica fibers were fabricated. These fibers were used because of their impressive mechanical properties. The composite panels are fabricated by hand lay-up technique. Sansevieria cylindrica fibers and polyester resin to produce the composite material. Sansevieria cylindrica plant has each leaf 20 to 30mm thickness and height 1000 to 2000mm approximately. The chemical tests of fiber and tensile strength for different fiber length composites such as 10mm, 20mm, 30mm, 40mm, & 50mm are determined.
Ultrasonication Assisted Fabrication of Aluminum and Magnesium Matrix Nanocomposites - A Review
Authors: Parthiban K. , Poovazhgan Lakshmanan
Published: March 2020

Recent researches in the domain of casting confirmed that the mechanical properties of aluminum and magnesium based nanocomposites can be appreciably enhanced when ultrasonic cavitation assisted solidification processing is used. Ultrasonic cavitation assisted solidification processing is used for the manufacturing of aluminum and magnesium alloy based metal matrix nanocomposites reinforced with nanoceramic particles. In this solidification processing, formation of clusters have been minimized and the nanoreinforcements were distributed uniformly in aluminum and magnesium matrix nanocomposites. The ultrasonic assisted casting approach will manage the grain dimensions via minimizing agglomeration of nanoparticles in metal matrices. This paper opinions the properties and morphology of aluminum and magnesium based metal matrix nanocomposites fabricated through ultrasonic assisted casting process.
Review on Accumulative Roll Bonding (ARB) Techniques for Improving the Mechanical Properties of Multi-Layered Materials
Authors: Arun A. , Poovazhgan Lakshmanan
Published: March 2020

Accumulative Roll Bonding (ARB) is one among the techniques in Severe Plastic Deformation (SPD) which is used to produce ultrafine grains and nanocrystalline structure in the materials used. Tensile test, micro hardness test, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and bending tests are the various tests carried out to understand the grain refinement of ARB materials. ARB is carried out in homogenous and heterogeneous materials to bring out the useful applications of ultrafine grained materials. ARB process mainly carried out in room, warm and hot temperature. The variations in the structure of the material are obtained by changing the load applied on the roller and by increasing the number of passes. This review paper brings out how the mechanical properties of the materials are improved by ARB process
Influence of Friction Stir Welding Variants on Crashworthiness of Friction Stir Welded Aluminium Top Hat Sections
Authors: Lakshminarayanan A.K. , Daniel Cyril Joseph
Published: March 2020

The motivation for this research is the desire to design a cross-section of frontal crash absorbing member that deforms in a regular controlled manner, but also the desire for cost-to-weight effectiveness. Nowadays, Friction Stir Welding (FSW) is a popular process for welding of difficult to weld aluminium alloys due to its advantages of solidification related defect free microstructure, low residual stress and comparable mechanical properties with the base metal. In order to better understand the crashworthiness of aluminium alloy joints produced by FSW, this investigation was carried out to fabricate a frontal member top hat section with base member welded by three different friction stir welding process variants. The crashworthiness was investigated by subjecting the fabricated joints to quasi static loading and the results are reported. The experimental results are compared with the results of numerical simulation.
Geostatistical simulations of the full 3D block hydraulic conductivity tensor considering inner local-scale variability
Authors: Benoit N , Marcotte D , Molson J W , Pasquier P
Published: March 2020

In regional hydrostratigraphic systems, heterogeneities in hydraulic conductivity (K) play a central role for flow velocities and contaminant transport modelling. Typical field measurements of K usually only represent one or at most a few local hydrofacies of a
single hydrostratigraphic unit (HSU). At the regional scale, numerous HSUs exist, each showing a range of K-measurements spanning several orders of magnitude. For realistic numerical modelling, an intermediate scale, i.e. at the block scale, is required between the local and regional scales. Each
HSU block must therefore be equipped with an equivalent 3D conductivity tensor that accounts for the connectivity of hydrofacies and conductivity variations at the local scale. We propose a four-step approach: 1- local-scale simulation of K for each HSU, 2- upscaling of local (quasi-point)
realizations into the full 3D block K-tensors using a block by block finite element flow simulator, 3- definition of the block K-tensor spatial covariance, and 4- direct simulation of block K-tensors at the regional scale. This approach was applied for regional groundwater flow modelling on a
complex 3D deterministic model, the Innisfil Creek watershed, Ontario, Canada. The K database was built using 1,086 transmissivity measurements extracted from public wells, 32 HSU borehole samples for laboratory permeability tests and 1,694 grain size analyses from high-resolution sampling of 15
boreholes located in the study area. The latter were used to characterize local-scale variability of K. A non-conditional turning bands method was used to simulate the local-scale scalar K fields. Block 3D hydraulic conductivity tensors were obtained by upscaling the local-scale simulation to the
block scale using the Saltflow finite element flow simulator. Analysis of the upscaled K-tensor components revealed a clear control of principal components with strong correlations between them. The K-tensors showed correlation ranges of a few to several blocks depending of the HSU. The tensor
covariance of the principal components was combined in a linear model of coregionalisation to simulate a series of block K-tensor fields within a fixed hydrostratigraphic model. Groundwater flow simulated using the ensemble K field was compared to a deterministic flow field using a single calibrated
K-tensor per HSU. The uncalibrated fields simulated with the K tensor showed a match to available hydraulic head data which was comparable to the match of the calibrated deterministic model. The impact of K-tensor uncertainty on a typical flow simulation response was assessed and proved
non-negligible. The approach can easily be applied to include uncertainty of the hydrostratigraphic model itself to obtain a better assessment of the complete uncertainty on the flow model.
Seroprevalence and associated risk factors of Rift Valley fever in cattle and selected wildlife species at the livestock/wildlife interface areas of Gonarezhou National Park, Zimbabwe
Authors: Ndengu Masimba , Matope Gift , Tivapasi Musavengana , Pfukenyi Davies M. , Cetre-Sossah Catherine , De Garine-Wichatitsky Michel
Published: March 2020

A study was conducted to investigate the seroprevalence and associated risk factors of Rift Valley fever (RVF) infection in cattle and some selected wildlife species at selected interface areas at the periphery of the Great Limpopo Transfrontier Conservation Area in Zimbabwe. Three study sites were selected based on the type of livestock–wildlife interface: porous livestock–wildlife interface (unrestricted); non-porous livestock–wildlife interface (restricted by fencing) and livestock–wildlife non-interface (totally absent contact or control). Sera were collected from cattle aged ≥ 2 years representing both female and intact male. Sera were also collected from selected wild ungulates from Mabalauta (porous interface) and Chipinda Pools (non-interface) areas of the Gonarezhou National Park. Sera were tested for antibodies to Rift Valley fever virus (RVFV) using a competitive enzyme-linked immunosorbent assay (ELISA) test. AX2 test was used to assess differences between categories, and p 0.05 was considered as significant. In cattle, the overall seroprevalence was 1.7% (17/1011) (95% confidence interval [CI]: 1.01–2.7). The porous interface recorded a seroprevalence of 2.3% (95% CI: 1.2–4.3), the non-porous interface recorded a prevalence of 1.8% (95% CI: 0.7–4.3) and the non-interface area recorded a seroprevalence of 0.4% (955 CI: 0.02–2.5), but the difference in seroprevalence according to site was not significant (p 0.05). All impala and kudu samples tested negative. The overall seroprevalence in buffaloes was 11.7% (95% CI: 6.6–19.5), and there was no significant (p = 0.38) difference between the sites (Mabalauta, 4.4% [95% CI: 0.2–24] vs. Chipinda, 13.6% [95% CI: 7.6–23]). The overall seroprevalence in buffaloes (11.7%, 13/111) was significantly (p 0.0001) higher than in cattle (1.7%, 17/1011). The results established the presence of RVFV in cattle and selected wildlife and that sylvatic infections may be present in buffalo populations. Further studies are required to investigate if the virus is circulating between cattle and wildlife.
National Council for the Care of Cripples in S.A.
Authors: Mathias Anna
Published: March 2020

No abstract available.