bluuebunny/crossref_metadata_2025 huggingface dataset:
Computational Investigation of the Spin-Density Asymmetry in Photosynthetic Reaction Center Models from First Principles
Authors: Artiukhin Denis , Eschenbach Patrick , Neugebauer Johannes
Published: March 2020

We present a computational analysis of the spin-density asymmetry in cation radical states of reaction center models from photosystem I, photosystem II, and bacteria from Synechococcus elongatus, Thermococcus vulcanus, and Rhodobacter sphaeroides, respectively. The recently developed FDE-diab methodology [J. Chem. Phys., 148 (2018), 214104] allowed us to effectively avoid the spin-density overdelocalization error characteristic for standard Kohn–Sham Density Functional Theory and to reliably calculate spin-density distributions and electronic couplings for a number of molecular systems ranging from inner pairs of (bacterio)chlorophyll a molecules in vacuum to large protein including up to about 2000 atoms. The calculated spin densities show a good agreement with available experimental results and were used to validate reaction center models reported in the literature. Here we demonstrate that the applied theoretical approach is very sensitive to changes in molecular structures and relative orientation of molecules. This makes FDE-diab a valuable tool for electronic structure calculations of large photosynthetic models effectively complementing the existing experimental techniques.
Binary and Ternary 3D nanobundles Transition Metal Oxides Functionalized Carbon Xerogels as Electrocatalysts toward Oxygen Reduction Reaction
Authors: Abdelwahab Abdalla , Carrasco-Marín Francisco , Pérez-Cadenas Agustín F.
Published: March 2020

This work describes preparation of novel binary and ternary transition metal oxides functionalized carbon xerogel. The characterization data reveals that the functionalized metal oxides are in the form of nanobundles with different lengths and widths. these prepared electrocatalysts show excellent performance as electrocatalysts for oxygen reduction reaction.
Theoretical Evaluation of Bortezomib and Other Boron-Containing Compounds as Inhibitors of SARS-CoV-2 Main Protease
Authors: Vega Valdez Ivan Ricardo , Santiago-Quintana José Martín , ROSALEZ MELVIN , Farfan Eunice , Soriano-Ursua Marvin A.
Published: March 2020

The aim of the present docking study was to explore the putative role of boronic moieties in molecules interacting on the binding site of the SARS-CoV-2 main protease. The methodology was based on the conventional docking procedure by means of AutoDock software by assaying boron-free and boron-containing compounds on the recent reported crystal structure of SARS-CoV-2 main protease (PDB code: 6LU7). The most of tested compounds share contact with key residues and poses on the cleavage pocket. Those compounds with a boron atom in its structure often were estimated with higher affinity than boron-free analogues. Interactions and affinity of boron-containing peptidomimetics on the binding site let us to propose the potent inhibition of these compounds on targeted protease. These advances may be relevant for drug designing, but also to suggest the testing of available boron-containing drugs in patients with severe symptoms of COVID19 infection.
Synthesis, Characterization and Reactivity of Neutral Octahedral Alkyl-Cobalt(III) Complexes Bearing a Dianionic Pentadentate Ligand
Authors: Nurdin Lucie , Piers Warren , Lin Jian-Bin , Gelfand Benjamin S.
Published: March 2020

A variety of neutral alkyl-cobalt(III) complexes bearing a dianionic tetrapodal pendadentate ligand B2Pz4Py are reported. Compounds 2-R (R = CH3, CH2SiMe3, CH2SiMe2Ph, i Bu, CH2(c-C5H9) and (CH2)4CH=CH2) are synthesized in 58-90% yield. These diamagnetic, octahedral complexes are thermally stable up to 110˚C and are also remarkably stable to ambient atmosphere. They were fully characterized by spectroscopic techniques, and in three cases, X-ray crystallography. Evidence for reversible homolytic cleavage of the Co-C bonds was found in their reactions with the hydrogen atom donor 1,4-cyclohexadiene and the radical trap TEMPO, as well as the observed cyclization of the 5-hexenyl group to the methylcyclopentyl derivative over the course of several hours. Despite these observations, it can be concluded that the diborate B2Pz4Py ligand provides a very stable platform for these Co(III) alkyls. Reduction by one electron to a Co(II) alkyl can accelerate bond homolysis, but in this instance, using cobaltocene as the reducing agent, leads to ejection of an alkide anion through bond heterolysis, an unusual reaction for Co(III) alkyls. Finally, protonation of compound 2-Me with the strong acid HNTf2 leads to divergent reactivity in which the major protonation site is the pyridyl nitrogen of the ligand as opposed to protonation of the methyl group. The produce of protonation at nitrogen is the dimeric species 4 which was prepared via separate synthesis and characterized by Xray crystallography.
PERSEPSI GURU TERHADAP APLIKASI EDMODO SEBAGAI ALAT BANTU KEGIATAN BELAJAR DI SEKOLAH DASAR
Authors: Wisudawati Novita , Kuntarto Eko , Kurniawan Agung Rimba
Published: March 2020

The purpose of this study is to describea how the teacher's perception of the application of Edmodo as a tool for learning activities in Al-Falah Islamic Elementary School Jambi. This research is a study that uses a qualitative approach to the type of phenomenological research. Researchers chose a qualitative approach to the type of phenomenological research because researchers wanted to examine according to phenomena related to teacher perceptions of the application of edmodo as a learning aid in the Al-Falah Islamic Elementary School in Jambi. The informants of this study were nine Al-Falah Jambi Islamic elementary school teachers. Researchers took the "purposive sampling" sampling technique by assigning informants with special characteristics, namely teachers who knew and had used the Edmodo application as a medium or a tool in learning in the network. Data collection techniques used by researchers are questionnaires and interviews. The researcher chose technique triangulation as a test of the validity of the data. By using triangulation techniques, the researchers re-check the data from the same source with different techniques to conduct data analysis. The data obtained were analyzed using the Miles Huberman interactive model which included: data reduction, data presentation, and data verification. The results of this study indicate that the perception of teachers has a percentage of 84.86% and can be categorized as perceptions that strongly agree with the application of Edmodo as a tool for learning activities in primary schools. The teachers felt helped in the learning process using the edmodo application. With the diversity of features found in the Edmodo application, teachers can use it in online learning. The steps of learning to use the edmodo application have not been eliminated or even almost refined so that the teacher feels that the edmodo application is specifically designed for learning in the network. Just as in direct learning there are materials that can be read in the library, assignments, quizzes, correcting students' assignments and even awards given to students. The teacher is also more free because it can be done anytime and anywhere. Teachers' perceptions of the application of Edmodo regarding the constraints are only few namely regarding the programming language. As for the speed of access because online learning all depends on the network, if the network is good the learning will run smoothly. Comfort in learning using the Edmodo application is also felt by the teachers. The teachers have a desire to continue to access Edmodo as a tool for learning activities by adjusting to the needs and learning materials.
KEMAMPUAN GURU MELAKSANAKAN PEMBELAJARAN HIGHER ORDER THINKING SKILLS DI SEKOLAH DASAR
Authors: Samosir Windy Lara S. , Kuntarto Eko , Alirmansyah Alirmansyah
Published: March 2020

Penelitian ini dilakukan dengan tujuan untuk mendeskripsikan bagaimana kemampuan guru dalammelaksanakan pembelajaran Higher Order Thinking Skills di SDN No.55/I Sridadi. Penelitian ini merupakanpenelitian kualitatif dengan jenis deskriptif kualitatif yang bertujuan untuk mendeskripsikan hasil temuandilapangan. Metode yang digunakan dalam penelitian adalah dengan menggunakan pendekatan kualitatif,subjek dari penelitian adalah guru kelas III dan guru kelas V sekolah dasar. Teknik pengumpulan data padapenelitian adalah dengan menggunakan observasi, wawancara serta didukung dengan adanya dokumentasipelaksanaan pembelajaran Higher Order Thinking Skills. Penelitian ini dilaksanakan di SDN No.55/I Sridadi.Pada penelitian ini uji validitas data yang digunakan adalah triangulasi data. Hasil penelitian menunjukkanbahwa kemampuan guru melaksanakan pembelajaran Higher Order Thinking Skills di SDN No.55/I Sridadisudah cukup baik, mulai dari perencanaan pembelajaran yang dirancang guru yang telah memuat unsurHigher Order Thinking Skills hingga pelaksanaan pembelajaran yang dimulai dari tahap analisis (C4), evaluasi(C5) dan mencipta (C6) berdasarkan hasil penelitian guru sudah mampu melaksanakan pembelajaran HigherOrder Thinking Skills dengan cukup baik
Polymers welding methods including biodegradable materials
Authors: Fabijański Mariusz , Han Guofeng
Published: March 2020

Welding is one of the most popular methods of joining elements not only from metal materials, but plastics also. Their great diversity, chemical structure and physical condition in which they are at the temperature of use has a significant impact on the quality of the joints made. Welding is a particularly useful method of joining, for example, during the welding of packaging, where biodegradable plastics that dominate in this technology, for example with aluminum foil, dominate. This article reviews the methods of welding plastics including biodegradable materials.
Flow Aggregation for Energy-Aware Ad-Hoc Wireless Networks Respecting QoS Provisions
Authors: Boukrim Mustapha , Antari Jilali
Published: March 2020

Emerging communication technologies are now leading developers to design IT systems taking into count their energy-related considerations. Much research performed in the area of ad-hoc wireless networks tends to distribute the ﬂows over all nodes of the network, which increases the amount of energy consumed by each node and reduces longevity of the network. To overcome these problems, this paper seeks to aggregate a set of ﬂows within a number of nodes that is as low as possible in order to be capable of routing those ﬂows. This proposal allows to maximize the number of network nodes that may be turned oﬀ. The proposed solution was formulated as an integer linear programming (ILP) problem using a set of energy and quality of service (QoS) constraints. This formulation minimizes the total energy consumed by the nodes to construct a topology network that is capable of meeting QoS requirement for a set ﬂows inserted into the network. To evaluate the eﬃciency of the proposed model, a performance-based comparison was conducted with another routing model. The simulation results show that the proposed model oﬀers better performance in terms of global energy consumption and network load
A Soft-Output STBC Decoder for Aeronautical Telemetry
Authors: Louet Yves , Othman Rami , Skrzypczak Alexandre
Published: March 2020

Alamouti encoding is a well-known space time block encoding technique used to improve the received signal quality in Rayleigh fading channels. In aeronautical telemetry, this encoding technique is applied to shaped oﬀset quadrature phase shift keying tier generation (SOQPSK-TG) modulation in order to handle the two-antenna issue. It is provided for in telemetry-related IRIG standards. In this paper, we propose a unique decoding architecture for Alamouti-encoded SOQPSK-TG signals, taking advantage of pulse amplitude modulation decomposition with soft and hard outputs. We exploit this result to obtain a Viterbi algorithm (VA) for hard decoding and a soft output Viterbi algorithm (SOVA) for soft and hard decoding, with a twofold beneﬁt: operation using one trellis structure, unlike decoders that are based on the 8-waveforms cross-correlated trellis-coded quadrature modulation (XTCQM) approximation, and very attractive bit error rate performance, as well as a complexity trade-oﬀ
El cómic: ¿un arte secuencial?
Authors: Vilches Gerardo
Published: March 2020

Resumen: En 1993, Scott McCloud publicó su primer ensayo teórico sobre cómic y en forma de cómic: Entender el cómic: el arte invisible, cuyo éxito inmediato lo convirtió en una de las principales referencias en los estudios sobre cómic. En su obra, McCloud definía el cómic como un arte estrictamente secuencial, y planteaba una clasificación de las transiciones entre viñetas que partía de su concepto de clausura. Tras identificar ciertas limitaciones de sus teorías, se plantea una crítica de estos puntos mediante el análisis de obras y la revisión de bibliografía especializada, y se proponen alternativas de análisis más apropiadas para el cómic contemporáneo.

Abstract: In 1993, Scott McCloud published his first essay about comic in comic format: Understanding Comics: The Invisible Art, whose early success turned it to one of the main references in comic studies. In his work, McCloud defined comic as a strictly sequential art, and raised a classification of panels transitions that came from his concept of closure. After identifying certain limitations of his theories, a critique to these points through the analysis of some comics and the use of specialized bibliography is presented, and some more suitable alternatives for contemporary comics are proposed.
Toxicity of Metal Implants and Their Interactions with Stem Cells: A Review
Authors: Mirzajavadkhan Azin , Rafieian Saba , Hasan Muhammad Hasibul
Published: March 2020

The development of biomaterials has increased rapidly in order to alter the fate of stem cells and use them in therapeutic applications. Currently, many biomaterials are used in the biomedical industry. Biomaterials act as a “nitch” which is an environment regulating the development and self-renewal behaviour of stem cells. The stem cells receive signals from the “nitch” and proceeds accordingly. In order to control the behaviour of stem cells, the chemical and physical properties of the biomaterial should be taken into consideration. This review paper focuses on the different type of metals used in biomaterials, identifying their current issues and challenges including fatigue, corrosion resistance, and the toxicity caused by metal ions released in the body. It also provides detailed explanations about the impact of various metal implants such as stainless steel, cobalt-chromium, and titanium on stem cells and the toxicity caused by the interaction of biomaterials and various trace elements with the hostile body environment.
Alfabetização científica no ensino de Ciências: uma sequência didática sobre a pegada ecológica do lixo
Authors: Marques Ronualdo , Xavier Claudia Regina
Published: March 2020

A Alfabetização Científica no Ensino de Ciências a partir da temática ambiental possibilita debates e reflexões para que este saber contribua com a mudança de comportamento dos indivíduos em sua relação com o meio ambiente. Esse estudo teve como objetivo investigar o desenvolvimento da Alfabetização Científica de estudantes a partir da aplicação da Sequência Didática: Pegada Ecológica do Lixo. A pesquisa foi qualitativa na modalidade da Pesquisa Participante. A Educação Ambiental como temática no Ensino de Ciências viabiliza a sistematização do conhecimento científico a partir das experiências dos participantes com a problemática ambiental de forma contextualizada e no desenvolvimento de ações integradas e participativas incentivando as discussões que emergem das relações entre os seres humanos, a sociedade e Meio Ambiente. A partir de indicadores de Alfabetização Científica propostos por diversos autores, verificou-se que houve um desenvolvimento científico dos estudantes participantes.
A Educação Ambiental no Parque Ecológico Mário do Canto - Itaquaquecetuba-SP: uma percepção pelos frequentadores
Authors: Pereira Otávio Alves , Siqueira Ana Cláudia , Vilaça Fabiana Aparecida , Frenedozo Rita de Cássia
Published: March 2020

O presente artigo enfatiza a percepção ambiental sob ótica dos frequentadores de parques públicos e temáticos naturais. A rotina urbana tem forte impacto sobre nossas atitudes para com os cuidados básicos na preservação ambiental, reciclagem, limpeza e principalmente nos usos de recursos naturais. Umas das mais eficientes ferramentas para melhorias e conservação desses produtos naturais é a educação ambiental. Especificamente no parque Ecológico Mário do Canto, em Itaquaquecetuba, e em vista que a população local possui acesso ao parque ecológico e constantemente não é maximizado os resultados conforme a biodisponibilidade, algumas dúvidas aparentes sob outras perspectivas são de grande valia para o estudo desse ambiente em resposta aos frequentadores.
Evolução histórica do Fator de Impacto (FI) na base Web of Science (WoS) dos periódicos do Brasil entre 2008 e 2018
Authors: Domingues Renata Seabra , Cassaro Claudia Vilalva , Santos Lucilene Delazari , Nunes Hélio Rubens Carvalho , Simionato Juliana Siani , Shintaku Milton , Ferreira Junior Rui Seabra , Barraviera Benedito
Published: March 2020

O Fator de Impacto, embora não seja unanimidade, é um dos indicadores de qualidade para as revistas indexadas na Web of Science. Este estudo objetivou apresentar a série histórica do Fator de Impacto das revistas brasileiras indexadas nesta base a partir de 1997. Nesse ano havia 11 periódicos indexados; em 2008, 31; e em 2018, 158. Atualmente 99 revistas tem Fator de Impacto maior que 0.5 (62.7%); 54 tem Fator de Impacto maior que 1.0 (34.2%); 10 tem Fator Impacto maior que 2.0 (6.3%); e duas tem Fator Impacto maior que 3.0 (1,3%). O evidente crescimento desta métrica se deve principalmente a quatro fatores: a crescente exigência do sistema Qualis da CAPES aos programas de Pós-graduação para que priorizem sempre revistas de elevado Fator de Impacto para publicação; o Programa Editorial do CNPq financiando as revistas há quase trinta anos; a consolidação da biblioteca SciELO exigindo padronização e qualidade; e a Associação Brasileira dos Editores Científicos (ABEC) qualificando desde 1985 os Editores brasileiros. Os resultados animadores inserem e globalizam definitivamente a ciência brasileira.
ABEC MEETING: comunicação científica e gestão editorial
Authors: Ferreira Junior Rui Seabra
Published: March 2020

Editorial, v. 7, Número Especial.
Optimalisasi Aplikasi Ujian Sekolah Berbasis Komputer Menggunakan Moodle Di SMK Negeri 3 Buduran
Authors: Kholil Moch , Fuad M Nur , Wardani Shanti Ike
Published: March 2020

Ujian Sekolah Berbasis Komputer (USBK) atau disebut juga sebagai Computer Based Test (CBT) merupakan sistem pelaksanaan ujian dengan menggunakan komputer dan jaringan sebagai media ujian. Dalam pelaksanaannya, USBK berbeda dengan sistem ujian berbasis kertas atau Paper Based Test (PBT) yang selama ini sudah berjalan. Hal ini, dapat dilihat dari yang semula berorientasi pada kertas menjadi tanpa kertas. Penyelenggaraan USBK di SMK Negeri 3 Buduran mulai dilaksanakan pada tahun ajaran 2017/2018. Metode pengukuran berdasarkan faktor kemudahan penggunaan aplikasi (Usability) pada Model Kualitas Produk ISO/IEC 25010. Dari seluruh kuisioner yang dibagikan kepada siswa dengan diambil presentase terbesar dalam hal Appropriateness recognizability menyatakan setuju dengan persentasi 79.3%, Learnability menyatakan setuju dengan persentase 71.9%, Operability menyatakan sangat setuju dengan persentase 71.9%, User error protection menyatakan setuju dengan persentase 72.2%,  User interface aesthetics menyatakan setuju dengan persentase 72.6%, Accessibiltiy menyatakan setuju dengan persentase 43.3%.
Sistem Informasi Koperasi Simpan Pinjam Kowabrid Kota Malang Berbasis Android Guna Mempermudah Transaksi Pembayaran
Authors: Aditya Addin , Maslukhah Luluk , Sakaria Setiabudi
Published: March 2020

Sistem informasi merupakan suatu hal terpenting bagi perusahaan atau badan usaha sebagai pengolahan data yang memberikan peningkatan kinerja suatu pekerjaan. Saat ini sistem informasi semakin banyak digunakan oleh badan usaha seperti koperasi simpan pinjam. Sementara itu masih banyak koperasi simpan pinjam masih menggunakan sistem manual mulai dari transaksi simpan pinjam dan pembayaran angsuran hingga pelaporan tiap harinya. Banyaknya nasabah yang tidak ingin menyimpan kartu bukti pembayaran mengakibatkan kurangnya transparansi transaksi yang dilakukan sedangkan kartu bukti pembayaran harus dimiliki oleh petugas dan nasabah dimana kartu tersebut akan direkap kembali ke dalam buku besar sebagai laporan harian ke pimpinan. Dengan adanya permasalahan tersebut, diperlukan sebuah sistem informasi koperasi simpan pinjam berbasis android untuk mempermudah transaksi pembayaran. Dari sistem tersebut pembayaran angsuran menggunakan aplikasi android yang bersifat client-server, yaitu petugas akan memindai QR Code dari nasabah dan sistem otomatis menampilkan data pembayaran angsuran lalu data tersebut akan dikirim ke server, dimana data pembayaran angsuran akan menjadi laporan harian bagi petugas untuk dicek kembali oleh pimpinan. Berdasarkan hasil pengujian dengan menggunakan black box testing dapat disimpulkan bahwa sistem dapat membantu kinerja administrasi dengan baik serta fitur QR Code pada aplikasi juga membantu petugas lapangan untuk mempermudah proses transaksi dengan nasabah

 

Information system is an important things for companies or business as data processor that gives a work improvement. Nowadays, it often used for small business like cooperative service. Meanwhile there are many business unit still using manual system started from saving and loan transaction and installment payment until reporting. Many customer con’t want to keep their payment cards causing lack of transparency while payment cards has a main function to record all of the customer transaction which it will forwarded to the chairman. We need an application that can handle this problems with multi-platform. From the system, installment payment will be done by QR-Code feature and system will display the whole data transaction then send it to server. Data payment will be recorded daily by field officer and to be confirmed by the chairman. Based on blackbox method for testing the system, it can be concluded that the system help the administrative work properly and also QR-Code feature helps the field officers to record the installment payment from customer easily.
A Realtime Record Data Berbasis Desktop Pada Monitoring Penyimpanan Kentang
Authors: Kridoyono Agung , Sidqon Mochamad
Published: March 2020

In many condition of potatoes storage made extra observation. Potatoes condition like defect, placement, dan typical storage had effect on potatoes durability. This instrument to help observation of potatoes when places on storage, with real time record model made the changes condition of potatoes can be observed anytime. Serial asyncronous communication mode made data transfer between microcontroller with personal computer where the data storage had been saved on PC database. This model hopefully help farmer to observe potatoes condition on climate changes. The ideal condition of potatoes is 40C for temperature and 75-90% RH for humidity. So we have set point on stability of media. The result of research had two system model like environment and data storage with interface that built by Delphi desktop programming

 

Keywords: waterproff sensor, water shield teqnique, microkontroller monitoring
Penerapan Agile Unified Process Pada Pengembangan Aplikasi Puasa Ramadhan Berbasis Mobile Android
Authors: Kurniawan Aditya Alfin , Izzudin M. Andik , Amin Faris
Published: March 2020

Bulan Ramadhan merupakan bulan yang istimewa dalam agama Islam, sehingga setiap orang berusaha melakukan ibadah di bulan Ramadhan sebanyak-banyaknya. Keterbatasan waktu dan tempat untuk mengetahui amalan yang ada pada bulan Ramadhan, membuat kurang maksimalnya ibadah yang dilakukan pada bulan Ramadhan. Pengembangan aplikasi Puasa Ramadhan bertujuan guna membantu umat Islam dalam menjalankan puasa Ramadhan. Aplikasi Puasa Ramadhan berbasis Android dikembangkan menggunakan bahasa pemrograman Java dengan metode pengembangan Agile Unified Process (AUP). Penelitian ini menghasilkan sebuah aplikasi Puasa Ramadhan berbasis Android yang dibangun menggunakan metode pengembangan AUP. Hasil pengujian standar ISO 25010 menunjukan apabila aplikasi telah memenuhi pada kriteria compatibility dengan nilai 96.5% atau sangat layak dan performance efficiency berjalan dengan baik tanpa terjadi memory leak atau force close.
Studi Dan Analisa Faktor-faktor Yang Mempengaruhi Kepuasan Pelanggan Pada Sistem Informasi Penjualan Online (e-Commerce) Pada CV Selaras Batik
Authors: Wijaya Himawan , Pahlevi Omar , Harriansyah Harriansyah
Published: March 2020

Pelaku bisnis online atau e-commerce di Indonesia terus berupaya untuk mencari ide dan inovasi untuk menambah jumlah pelanggan dan juga mempertahankan para pelanggan lama, sehingga diharapkan dapat meningkatkan volume transaksi penjualan dan pada akhirnya memberikan keuntungan bagi perusahaan e-commerce. Penelitian yang dilakukan oleh peneliti merupakan penelitian lanjutan dari penelitian sebelumnya yang telah dilakukan pada tahun 2014, dimana penelitian yang dilakukan pada kesempatan ini merupakan salah satu bentuk evaluasi terhadap layanan yang telah dilakukan oleh CV. Selaras Batik kepada para pelanggannya, sehingga dapat memberikan data dan informasi kepuasan pelanggan yang telah melakukan transaksi pembelian. Dimana pada penelitian ini faktor-faktor kepuasan pelanggan yang akan menjadi fokus penelitian akan dibagi menjadi 4 kategori yaitu faktor produk, faktor harga, faktor kecepatan waktu pengiriman dan juga faktor layanan purna jual (after sales). Dimana ke-empat faktor tersebut dianggap faktor yang dapat mempengaruhi kepuasan pelanggan untuk tetap melakukan transaksi di CV. Selaras Batik. Metode penelitian yang akan digunakan pada penelitian ini adalah perpaduan antara data sampling dan juga analisis deskriptif, sehingga penelitian yang dilakukan ini dapat menghasilkan feedback dari para pelanggan CV. Selaras Batik dan juga menjadi strategi pemasaran yang optimal bagi pihak manajemen CV. Selaras Batik untuk tetap dapat eksis ditengah persaingan dunia ecommerce yang semakin ketat dan kompetitif.
La violencia en adolescentes escolarizados en el estado de Nuevo León
Authors: Villarreal-González María Elena , Sánchez-Sosa Juan Carlos , Musitu-Ochoa Gonzalo
Published: March 2020

El objetivo es analizar la prevalencia de la violencia escolar (manifiesta y relacional) en los planteles educativos urbanos y suburbanos del estado de Nuevo León. La muestra estuvo constituida por 8,115 adolescentes de ambos sexos y de edades comprendidas entre los 11 y 16 años, en 118 escuelas secundarias. Los resultados nos indican que la mayor parte de los adolescentes (88.6%) nunca han utilizado la violencia, o lo han hecho de manera ocasional, y 9.4% la utiliza de forma continuada o muy continuada. Y también, que las mujeres utilizan más la violencia de tipo relacional que los hombres, y éstos utilizan más la violencia manifiesta. Se discuten los resultados obtenidos.
GUL Herbaryumu’nun (Isparta) Apiaceae Familyası Envanteri ve Revizyonu
Authors: ÖZÇELİK Hasan , BEBEKLİ Özlem
Published: March 2020

Bu çalışma, GUL Herbaryumu’nda bulunan Apiaceae (Umbelliferae) familyası örneklerinin yeniden düzenlenmesi, internet sitesinde veri tabanı hazırlanması, teşhis edilmemiş örneklerin teşhis edilmesi, teşhislilerin yeni literatür ışığında kontrol edilmesi ve temel sistematik eserlerdeki tanımlamalara uymayan özellikleri ile endemik taksonların ve tehlike kategorilerinin belirlenmesi esasına dayanmaktadır. Bu çalışma ile GUL Herbaryumu’nda Apiaceae familyasına bağlı 54 cins ve bu cinslere ait 128 türe bağlı 135 takson belirlenmiştir. GUL Herbaryumu’ndaki Apiaceae familyasının takson zenginliği yönünden ilk sıradaki cinsleri; Bupleurum ve Pimpinella 8, Eryngium 7, Scandix 6, Johrenia, Chaerophyllum, Anthriscus, Prangos, Ferulago, Torilis, Daucus 5’er takson içermektedir. Endemik takson sayısı 20 olup; 4 takson LC, 6 takson NT, 3 takson CD, 5 takson VU, 1 takson EN ve 1 takson ise CR kategorisindedir. 60 takson Türkiye’deki çeşitli kareler için yeni kayıttır. Örneklerin tamamı Türkiye menşeili olup, çoğunluğu Doğu Anadolu’dan ve Göller Yöresi’nden toplanmıştır. Sunulan örneklerin çoğunluğu ilk yazar tarafından toplanmış ve teşhis edilmiştir. Ancak teşhisinde şüpheli olan veya tamamıyla çeşitli nedenlerden dolayı teşhis edilemeyen örnekler de bulunmaktadır.
Evaluation of different mechanical harvesting systems of table olive (Olea europaea cv. Gemlik)
Authors: YALÇIN Muammer , ALAYUNT Fazilet N. , ÇAKMAK Bülent
Published: March 2020

The experiments were conducted in Gemlik olive variety (Olea europaea cv. Gemlik)’s orchard to determinate the harvesting performance of different harvesting methods namely hand, branch shaker and trunk shaker at different frequencies and compare the harvesting methods. Trunk shaker with eight different frequencies were operated. In the first and second year of the experiments at the optimum harvest time, fruit volume, fruit detachment force, fruit weight, the ratio of fruit detachment force to fruit weight were found to be 3.9-4.0 cm3, 3.27-3.99 N, 4.23-4.28 g, 0.77-0.94 N g-1 respectively. Best results were obtained by using the trunk shaker with low frequencies as trunk shaker machine (TSM) 22 Hz. Fruit damage, tree damage levels, harvesting efficiency, duration of operation per tree and work productivity of trunk shaker with 22 Hz were found as less than 1.5%, 2.86%-7.24%, 93.93%-92.92%, 2.51-2.81 min tree-1 and 286.22-355.72 kg worker-1 h-1 respectively in two-years (2012 and 2013) trials.
Antalya ilinde tüketicilerin perakendeci markalı süt ve süt ürünleri tercihlerini etkileyen faktörlerin analizi
Authors: KARAKAYA Yeşim , ÖZKAN Burhan
Published: March 2020

Bu çalışmanın amacı, Antalya ilinde tüketicilerin perakendeci markalı süt ve süt ürünleri tercihlerini etkileyen faktörlerin analizinin yapılmasıdır. Bu amaçla Antalya ili kentsel alanda basit tesadüfî olasılıklı örnekleme yöntemine göre seçilen 245 tüketici ile anket yapılmıştır. Araştırmada, tüketicilerin demografik ve ekonomik özellikleri ile perakendeci markalı süt ve süt ürünlerinde tüketici tutum ve satın alma davranışı incelenmiştir. Görüşme yapılan tüketicilerin perakendeci markalı süt ve süt ürünleri tercihlerini etkileyen faktörlerin analizinde binary lojistik regresyon analizi kullanılmıştır. Model sonuçlarına göre; tüketicilerin eğitim durumu yükseldikçe perakendeci markalı süt ve süt ürünlerini tüketme etme olasılığı azalmaktadır. Ailedeki birey sayısı arttıkça perakendeci markalı süt ve süt ürünleri tüketim olasılığı artırmaktadır. Kadın tüketici sayısı arttıkça, perakendeci markalı süt ve süt ürünlerinin tüketim olasılığı artmaktadır. Araştırma sonuçlarına göre; tüketicilerin süt ve süt ürünleri tüketiminde perakendeci markalı ürünleri tercih etme eğiliminde oldukları söylenebilir.
Detection of Spiroplasma citri from citrus trees in Turkey by molecular techniques
Authors: ÇAĞLAR Behçet Kemal , SATAR Gül , BALOĞLU Saadettin , DRAİS Mounira İnas , DJELOUAH Khaled
Published: March 2020

Spiroplasma citri is the causal agent of Citrus Stubborn Disease (CSD) on cultivated citrus in the arid and semi-arid climate. Detection and characterization of this agent at the early stage of infection in citrus orchard and young citrus saplings in the nursery is of utmost importance to prevent the introduction and spread of the disease in Spiroplasma citri free areas. The current study was conducted in order to investigate the possible existence of different Spiroplasma citri strains in Turkey. Leaf and fruit samples were collected from ten years old citrus trees showing mostly short internodes, upright and mottled leaves, off-season blossoming and typical small and acorn-shaped fruits symptoms associated with citrus stubborn diseases in different villages of Kozan town of Adana province in Turkey. Polymerase chain reaction (PCR) was performed using Spiralin-f/r, P89-r/f and P58-6f/4r primer couples for the detection and characterization of the Turkish isolates. No positive sample was detected with the primers Spiralin-f/r. On the contrary, all samples reacted positively to the P89-r/f and P58-6f/4r primer couples. The obtained amplicon from the P89-r/f primers pair was sequenced and the phylogenetic tree was constructed. Phylogenetic tree showed that the Turkish Spiroplasma citri isolates are closely related to the Mexican, Spanish, Algerian, and Italian than those isolated from Morocco, Egypt and USA.
RESUMO DE DISSERTAÇÃO: PROCESSOS AVALIATIVOS EM ESPAÇOS DE USO COLETIVO
Authors: Bertuzzi Felipe Buller , Cardoso Grace Tibério
Published: March 2020

Muito é debatido acerca da necessidade das percepções dos usuários frente à avaliação dos equipamentos inseridos no ambiente, de modo a analisar se o local atende ou não às necessidades dos usuários. A compreensão do ambiente por meio da observação do indivíduo como agente estruturador do mesmo, permite explicitar aspectos da utilização e apropriação e, a partir disso, buscar soluções que garantam a manutenção da qualidade do espaço (VILLAROUCO e ANDRETO, 2008). Nesse contexto, a utilização de procedimentos provenientes da Avaliação Pós-Ocupação (APO) permite considerar etapas de apropriação do espaço, como o seu uso, a operação e manutenção, e a utilização por cada perfil de usuários (ONO et al., 2018). No que se referem a espaços livres, várias características devem ser observadas. Dentre elas, a relação com o contexto e com as necessidades da população a partir de atributos funcionais, estéticos, econômicos e viáveis construtivamente. Com isso, torna-se necessário avaliar diferentes variáveis, cruzá-las e interpretá-las, a fim de estabelecer correlações entre o ambiente e o usuário. Nesse sentido, o presente trabalho de natureza qualitativa, analisou as características ambientais e a percepção da população carioca frente à estrutura do Parque Olímpico da Barra da Tijuca.  A partir de diferentes métodos aplicados na cidade pretendeu-se verificar o nível de satisfação dos usuários e não-usuários destes locais, podendo resultar no entendimento do uso no espaço por meio de questões objetivas qualitativas. A APO permitiu, portanto, a análise conjunta de várias variáveis, por métodos de diferentes disciplinas, corroborando para uma pesquisa com resultados mais sólidos. Assim, este trabalho contou com a aplicação de entrevistas semiestruturadas, mapa comportamental em diferentes praças da cidade, o método Walkthrough, mapa de seleção visual e a aplicação dos questionários, a fim de compreender a apropriação do espaço a partir das avaliações positivas e/ou negativas dos usuários, envolvidas pela gama multidisciplinar de abordagens. Desse modo, pôde-se observar a relação direta entre usuários e diferentes espaços públicos ao longo da cidade, observando a apropriação dos espaços próximos às suas residências devido à facilidade de acesso, bem como a escolha por locais que ofertem mobiliários e serviços de lazer e esporte.
MOBILIÁRIO INFANTIL ORIENTADO AO COMPORTAMENTO SUSTENTÁVEL E LIVRE DA CRIANÇA
Authors: Lopes Kano Júlia , Queiroz Ferreira Barata Tomás , Canêdo Sanglard Maria José
Published: March 2020

A economia atual baseada no lucro e na produção somada à herança das Revoluções Industriais e a exploração exacerbada dos recursos naturais do período moderno, resultaram num grande acúmulo de descartes e poluição. Diante desse cenário, é de extrema importância incentivar a preocupação com o meio ambiente desde a infância por ser a base da construção do indivíduo. Por esse motivo, a faixa etária definida para o estudo é de 4 a 6 anos, fase em que a criança começa a se compreender como indivíduo e assimilar todos os novos conhecimentos. O mercado de mobiliário infantil vem crescendo e de acordo com os estudos de caso feitos dentro do setor se mostrou um ambiente propício para inovação e desenvolvimento do projeto. O presente trabalho possui como objetivo central desenvolver um mobiliário infantil para guardar que desperte a atenção e a curiosidade da criança acerca de questões ambientais, com foco na cocriação e na valorização da liberdade infantil. Projetar para crianças em fase de desenvolvimento focando na desmaterialização dentro de um mundo voltado para o consumo e incentivando uma relação de pertencimento e envolvimento com o mobiliário são os maiores desafios conceituais do projeto.
Peranan Statistika dan Pengembangan Karakter dalam Menghadapi Tantangan Era Revolusi Industri 4.0 dan Big Data pada SMAN 1 Praya
Authors: Kurnia Agus , Hadijati Mustika , Komalasari Desy , Fitriyani Nurul
Published: March 2020

The development of science and technology provides changes to every aspect of human life including social, economic, educational and industrial changes which are now entering stage 4.0. The Era of the Industrial Revolution 4.0 is identical to the Internet of Things which produces Big Data that cannot be processed with conventional devices and requires special analysis. These changes require human resource development in science, education and character in order to continue to compete with the global world, especially the younger generation who will fill the industrial forward. The problem arises because most of the educational outcomes lack a link and match or a good match between tertiary education which causes students to feel wrong about their majors or the incompatibility of their needs and abilities in the industrial world which makes it difficult for them to find a work. Therefore, coaching efforts are needed so that students can be aware and prepare themselves to improve their quality both by increasing hardskills and soft skills to meet these needs. This community service activity is carried out by SMAN 1 Praya as one of the best high schools and is a reference school in West Nusa Tenggara. The method used is the direct learning method that is evaluated using self-assessment techniques conducted by students using google form. Evaluation results show an increase in students' knowledge of statistics and character development needed in the face of the industrial revolution 4.0 and Big Data after they have participated in this dedication activity.
Bakti Sosial Jantung Sehat: Pengembangan Upaya Preventif Kardiovaskuler dan Peningkatan Kualitas Hidup Lansia
Authors: Indrayana Yanna , Harahap Herpan Syafii , Setiawan Dion , Halimi Amanda
Published: March 2020

Cardiovascular disease is the major causes of death in the world. Hypertension and diabetes mellitus are the important risk factors for cardiovascular disease. The prevalence of hypertension and diabetes mellitus is higher in the elderly population. Promotive and preventive efforts for the occurrence of hypertension and diabetes mellitus are the important strategies for preventing cardiovascular disease in elderly population. This was a social activity program developingthe preventive strategy against cardiovascular disease and improving of the quality of life of the elderly. This activity program was attended by 66 elderly participants routinely participated in the Panti Sosial Tresna Werdha Puspa Karma, Mataram. This program were consisted of counseling and healthy heart gymnasticsregularly every week for 3 months. The parameters taken in this event are height, body mass index (BMI), abdominal circumference, systolic and diastolic blood pressure, and serum fasting blood glucose (GDP) levels at the beginning and end of the programin order to assess the success of this program in reducingthe risk of suffered from cardiovascular disease. There were significant differences in the mean of body weight, BMI, abdominal circumference, systolic and diastolic blood pressure, and serum GDP levels between the the beginning and end of the programs (p<0.05). This social activity program reduced effectively the risk of cardiovascular disease in the elderly.
Um Caso Clínico de Sarcoidose Cutânea, Pulmonar, Esplénica e Neurosarcoidose
Authors: Machado Bela , Matos Ana Rita , Mendonça Teresa , Farinha Fátima
Published: March 2020

A sarcoidose é uma doença granulomatosa que pode afetar qualquer órgão de etiologia desconhecida. Apresentamos o caso de um homem, de 49 anos, com antecedentes pessoais de um episódio de eritema nodoso. O estudo imagiológico do tórax mostrou múltiplas adenopatias mediastínicas e justa-hilares bilaterais, apesar de não apresentar queixas respiratórias. O lavado broncoalveolar revelou uma relação de células CD4/CD8 de 9,98 e o estudo analítico revelou uma enzima conversora da angiotensina elevada, sem outros achados. O doente iniciou corticoterapia verificando-se uma melhoria das manifestações cutâneas. Após dois anos, apresenta-se na consulta de Medicina Interna com queixas de emagrecimento, anorexia, fadiga, hipoacusia, síndrome vertiginosa e hipostesia dorsal em banda. Este caso mostra o envolvimento multissistémico da sarcoidose, tendo como ponto de partida para o seu diagnóstico uma manifestação cutânea e realça a importância da vigilância e do tratamento destes doentes a fim de um controlo atempado da doença.
The Role of Responsible Leadership in Creating a Risk Culture that Promotes Sustainable Innovation in Business
Authors: Fragouli Evangelia , Chukwudum Victoria
Published: March 2020

The purpose of this study is to show that responsible leaders are those who are risk takers and develop a risk culture that encourages sustainable innovation. Through a review of literature, it was revealed that research on sustainable development seems to have underestimated the role of responsible leadership in embedding a risk culture that underpins sustainable innovation. Therefore, this study through a critical approach, discusses the strategic imperative of a risk culture that encourages sustainable innovation in organisations and how a responsible leader can instil such culture. The study further proposes four (4) set of actions through which responsible leaders can establish and maintain a risk culture that promotes sustainable innovation; this is relevant to both decision makers and practitioners.
Occupational Hazards and Safety of Sawmill Operators in Ogbese Ondo State, Nigeria
Authors: Akinbode T. , Owoeye J.O
Published: March 2020

This study examined the hazards and safety procedures adopted by sawmill operators in Ogbese, Ondo State, Nigeria. Data were collected through the administration of a set of structured questionnaire to examine the hazards associated with sawmill operators and safety practices adopted. Thirty (30) operators were purposively selected and administered with the questionnaire. Analysis was done using descriptive and correlation statistics. Findings, among others, revealed that sawmill operators do not have the required health safety gadgets needed to secure them from various hazards associated with their operations. Environmental pollutions, such as, smoke from burning sawdust, noise from heavy machinery in the industries, heavy trucks that carried sliced wood, solid and liquid wastes which caused nuisance to the environment posed serious health challenges to the operators and residents in the environment. The study proffered policy statements that could enhance the health and safety of sawmill operators and improve the environment.
Analysis of moral hazard in Engineering agent construction system
Authors: Wang Lihua , Zhou Shuguang , Hui Yuetong
Published: March 2020

Analyze the moral hazard issues in the construction agency system, and enumerate the performance of moral hazard. Deeply analyze the causes, start with strengthening supervision and perfecting incentive measures, eliminate the impact of moral hazard, and give play to the advantages of agent construction.
Evaluation of Implementation Preparation for CE based on BEACON model —Taking Construction Enterprises in Yemen as a Case of Illustration
Authors: Dahmas Sabrinaji , Li Zhongfu , Ahmad Mahmood
Published: March 2020

After decades of civil war, Yemen is in a desperate situation, and the construction industry has been suffering from low productivity and poor performance. In order to improve the productivity for the Yemeni construction industry, Construction enterprises must adopt the best and new technologies, new management concepts and philosophies such as Total Quality Management (TQM) and concurrent engineering (CE) owing to achieve improvements in the process of product development. To ensure the successful implementation of CE in the Yemeni construction industry, it is necessary to assess the readiness of those companies to implement CE. In this paper, the BEACON model is used to assess the readiness of the Yemeni companies to implement the concept of CE, that assist in overcoming the construction industry's poor productivity and performance. A study assessing CE implementation readiness will help to promote successful CE implementation in the construction industry and enhance the efficiency of construction companies. The results show that most of the construction companies in the Yemen are not ready to implement CE. The main reason is that the enterprises rely heavily on traditional management methods, and need to improve the organization and management technology. The research results can provide theoretical support for construction companies, especially Yemen companies, to establish basis in implementing an appropriate CE approach for improving performance, and also help international construction companies entering the Yemen construction market to cooperate and implement CE.
Analysis on the Construction and Application of Smart Library
Authors: Zhu Yunqing , Zhang Qing
Published: March 2020

Combining the smart library management plan, recognize the importance of modern smart library construction, summarize the technology in the construction of smart libraries, aiming to demonstrate the innovative value of smart library construction through the innovation of construction programs, and to provide guarantee for the design of modern libraries.
Calvinistic Doctrines Reflected in Jonathan Edwards’s “Sinners in the Hands of an Angry God”
Authors: Wang Dan
Published: March 2020

Preached on July 8, 1741, “Sinners in the Hands of an Angry God” remains Jonathan Edwards’s most famous written work and a classic of the Great Awakening of New England. The long-famed power of this sermon rests not only in his searing images of hellfire and the insecurity they elicit, but also in the Calvinistic thoughts Edwards imparts to his Enfield listeners. This paper mainly examines some basic doctrines of Calvinism Edward expresses in this sermon, such as God’s absolute sovereignty, original sin, human depravity, and divine election, etc.
Study on Full English Teaching of Hospitality Management in Application-oriented Undergraduate Universities
Authors: Chen Jie
Published: March 2020

With the emergence of development of international integration, the domestic education also attaches great importance to English discipline. The hospitality management of application-oriented undergraduate universities demands high standard for English. The hospitality management of some domestic undergraduate universities has reformed the traditional English teaching mode and adopted the Full English Teaching mode. However, due to the lack of high-quality English teachers, the single teaching methods, and the lack of support from university for Full English Teaching, the actual effect of Full English Teaching is not ideal. Through investigation and analysis of an undergraduate university, this paper finally puts forward countermeasures against the deficiencies in the Full English Teaching mode so as to improve the professional quality of the teaching staff, adopt diversified teaching means and enhance the school’s support for English teaching.