bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of Unsteady Friction Models Used in Engineering Software for Water Hammer Analysis: Implementation Case in WANDA
Authors: Abdeldayem Omar , Ferràs David , van der Zwan Sam , Kennedy Maria
Published: February 2021

Transient events are frequent in water distribution systems. However, until now, most of the applications based on transient analyses are merely theoretical. Additionally, their implementation to real engineering problems is limited due to several physical phenomena accompanying transient waves, which are not accounted for in the classic approach, such as unsteady friction. This study investigates different unsteady friction models’ performance in terms of accuracy, efficiency, and reliability to determine the most-suited engineering practice. As a result of this comparison, Vítkovský’s unsteady friction model was found to be the best fit and was then implemented in WANDA commercial software. The implementation was verified with experimental data based on a reservoir–pipe–valve system. The model proved excellent performance; however, it was noticed that it fell short in simulating plastic pipes, where viscoelastic effects dominate. The upgraded software was then tested on different hydraulic networks with varying pipe materials and configurations. The model provided significant improvement to water hammer simulations with respect to wave shape, damping, and timing.
Integrating the JRC Monthly Water History Dataset and Geostatistical Analysis Approach to Quantify Surface Hydrological Connectivity Dynamics in an Ungauged Multi-Lake System
Authors: Wu Lili , Chen Yueqing , Zhang Guangxin , Xu Y. , Tan Zhiqiang
Published: February 2021

Determining the dynamics of surface hydrological connectivity in a landscape of multiple lakes with different sizes and depths is challenging. This is especially the case for ungagged, large areas of multi-lake systems. Integrated use of remote sensing and geostatistical analysis can be a useful approach for developing metrics that can be used to identify the hydrological connectivity and their changes. In this study, we conducted a geostatistical analysis of 18 wet and dry binary state rasters derived from Landsat images over a large ungauged multi-lake system, the Momoge National Nature Reserve in Northeast China. Our goal was to investigate applicability and dynamics of three surface hydrological connectivity metrics, namely, geostatistical connectivity function (GCF), maximum distance of connection (MDC), and surface water extent (SWE) of the top 10 largest connectomes (i.e., seasonally connected water bodies). We found that, during a dry year, the reduction rate of the GCF curve was slower along the west–east (W–E) direction than along the north–south (N–S) direction, which was contrary to the patterns exhibited in a normal or wet year. The minimum values of the MDC in W–E and N–S directions in the dry year were 22.4 km and 6.3 km, respectively, while the maximum values of the MDC along the above two directions in the wet year were 50.7 km and 65.1 km, respectively. The components and spatial distribution of the top 10 largest connectomes changed dramatically in different months of each hydrological year, resulting in a huge change in the monthly SWE of the top 10 largest connectomes. Overall, this study validated the usefulness of combining remote sensing image analysis with geostatistical methods to quantify the surface hydrological connectivity from different perspectives in an ungauged area. The approach may be applicable to studies in other geographical regions, to guide water resources and wetland management practices.
Research on Stator Slot and Rotor Pole Combination and Pole Arc Coefficient in a Surface-Mounted Permanent Magnet Machine by the Finite Element Method
Authors: Guo Liyan , Wang Huimin
Published: February 2021

A surface-mounted permanent magnet (SPM) machine is widely used in many auxiliary parts of an electric vehicle, so its design level directly influences the performance of the electric vehicle. In the design process of the SPM machine, selecting the appropriate stator slot and rotor pole combination and pole arc coefficient is a necessary and important step. Therefore, in this paper, a 750 W machine is set as an example to research stator slot and rotor pole combinations and pole arc coefficients for the SPM machine. First, the design schemes of machines adopting different stator slot and rotor pole combinations are determined according to the winding coefficient, stator size, and electromagnetic performance requirements. Further, finite element models of SPM machines with different stator slot and rotor pole combinations are established by Ansys Maxwell. On this basis, the back electromotive force (back EMF), cogging torque, electromagnetic torque, and loss and efficiency of SPM machines are calculated and compared to select the better stator slot and rotor pole combinations. Further, effects of pole arc coefficient on cogging torque and electromagnetic torque are also researched to guide the selection of the pole arc coefficient in the design process of the SPM machine. Conclusions achieved in this paper will provide guidance for design of the SPM machine.
Study on the Prediction of Lane Change Intention of Intelligent Vehicles in the Network Environment
Authors: Liu Shuaishuai , Tan Di , Hong Shilin , Fu Hongxun
Published: February 2021

The prediction of lane change intention of vehicles is an important part of the decision planning and control systems of intelligent vehicles. In the dynamic and complex traffic environment, the behaviors of traffic participants interact and influence each other. In lane change prediction, it is necessary to study the predicted vehicle and surrounding vehicles as an interactive correlation system. Otherwise, great errors are made in the motion prediction. Based on this, the motion state of the predicted vehicle, the position relationship between the predicted vehicle and lane, as well as the motion state of vehicles around the predicted vehicle are considered systematically in this paper, and the prediction of lane change intention of vehicles is studied. The influence of the three above-mentioned factors on the prediction of lane change intention is analyzed in this paper. On the basis of screening the prediction features of lane change intention, the lane change intention of vehicles is predicted by a feed-forward neural network. The data collected by the virtual driving experiment platform are divided into a training set, a verification set, and a test set. The neural network parameters of vehicles’ lane change intentions are identified by a training set, and the effect of prediction is tested by a verification set and a test set. The results show that the accuracy of the prediction model is high. The model is compared with the model of common features at the present stage and the model based on a Support Vector Machine, and the results show that the accuracy of the prediction model proposed in this paper was improved by 6.4% and 2.8%, respectively, compared with the two models. Finally, the virtual driving experiment platform was used to predict the lane change intention of the front vehicle and the vehicle in the left adjacent lane. The results show that, based on the same model and input features, the lane change intention of the front vehicle and the vehicle in the left adjacent lane can be predicted by the model at 2.8 s and 3.4 s before the lane change, and the model is a certain generality for the prediction of lane change intention of adjacent vehicles.
INCREASING THE BONDING STRENGTH OF THE PLASTERING COATING TO THE BASE
Authors: Murtazaev S-A.Yu. , Uspanova A. , Hadzhiev M. , Hadisov V.
Published: February 2021

The strength of plaster coatings depends on the quality of adhesion of the applied plaster layer with the base. The bases for applying plaster coatings are necessarily prepared, the technology of preparing the bases may differ depending on the coating applied. It is established that the closer the initial structures are in structure, the higher the quality of the plaster coating as a whole. According to geonics, the relationship of structures in building composites is based on basic properties, general physical and mechanical indicators, which equally apply to both the building plaster solution and the base. At the same time, a contact binder is allowed between the base and the plaster layer with similar indicators, the presence of which guarantees reliable adhesion and strength of the resulting coating. The use of plaster solutions on enriched fine substandard sands with complex modified additives makes it possible to improve the technological qualities of the mortar mixture, the physical and mechanical characteristics of plaster solutions and optimize the technology of applying the plaster coating. Successive application of plaster layers on technogenic sands with different size modulus allows creating a base rough coating on the base, which closes the main defects and creates the base for the next layer of plaster solution. The Chechen Republic has extensive reserves of very fine and fine local sands, which in their basic properties are inferior to medium- and coarse-grained sands, but with a rational selection of composition, enrichment of grain composition can be used to produce high-quality construction composites. To enrich the grain composition of fine local sands, it is proposed to use dropouts of concrete scrap crushing, the volumes of which are significant on the territory of the Chechen Republic. Dropout of concrete scrap crushing by chemical composition is suitable for enriching local fine sands and when selecting the composition of the plaster solution increases the physical, mechanical and technological properties of the mortar mixture.
RELIABILITY OF REINFORCED CONCRETE STRUCTURES TAKING INTO ACCOUNT THE CONCRETE CREEP FACTOR
Authors: Pshenichkina V. , Gricenko B. , Gluhov A. , Miodrag Babovich
Published: February 2021

In the process of inspection of reinforced concrete structures being in long-term service, deflections of beams and slabs beyond the standard values are often detected, which is attributable to concrete creep occurring in the case of the early dismantling of shuttering. At the same time, any visual signs of their reduced load-bearing capacity are absent. Taking into account the high degree of uncertainty of the factors influencing the long-term strains of the concrete, the safe service life of such structures can vary within a rather wide range, and its actual value can be assessed only through probabilistic methods of the reliability theory. The paper presents the results of the investigation of the influence of concrete creep caused by the early dismantling of the shuttering on the reliability of prefabricated reinforced concrete floor beams of a three-storey building. The data obtained through the instrumental verification of the mechanical characteristics of the beam materials and their deformed state were used for design modelling. The authors carried out the probabilistic creep analysis of the beam through the method of statistical modelling taking into account the variability of concrete strength for various values of the relative humidity of the ambient air and the age of concrete at the moment of the load application. The statistical characteristics of the stress-strain modulus and the beam deflection values with various levels of probability were obtained. Due to con-crete creep, the safety analysis showed a 2,4 times reduction in the beam reliability index at the service life of a structure of 70 years.
Transaksiyonel Analiz Terapisine Kapsamlı Bakış: Bir Derleme Çalışması
Authors: ZÜMBÜL Saadet
Published: February 2021

Kişiler arası iletişim başta olmak üzere kişilik, gelişim ve psikopatolojiyi açıklamaya yönelik bir çerçeveye sahip olan Transaksiyonel Analiz Terapisi (TA) hümanizm, özerlik ve eşitliği temel alarak terapinin merkezine danışanı koyan bir terapi yaklaşımıdır. TA’nın iki temel amacı olduğu görülmektedir. Bunlar (i) bireylerin erken çocukluk dönemlerinde şekillenen ve hayat akışında süregelen ancak mevcut yaşamlarını aksatan çocukluk dönemi kararlarını diğer bir ifade ile yaşam senaryolarını değiştirmelerine yardım etme ve (ii) bireylerin kişiler arası ilişkilerinde ortaya çıkan sorunlar konusunda ortaya koydukları baskın yapılara farkındalık kazanmasına yardım etme. TA insan davranışlarıyla ilgili anlaşılması zor olan kavramları basit bir dil kullanarak açıklamış ve böylece günlük yaşamda kullanılabilir hale getirmiştir. Ülkemizde TA ve kavramları üzerine yapılan tezler olmasına karşın kapsamlı bir şekilde incelendiği sınırlı sayıda derleme çalışması vardır. Bu makalenin amacı TA’nın bütüncül bir gözden geçirmesini sunmaktır. Bu doğrultuda insan doğasına bakışı, temel kavramları, psikopatalojiye bakışı, terapötik amaçları, terapistin rolü ve işlevi, terapötik teknik ve yöntemlerine yer verilmiş ardından kapsamlı bir şekilde çok kültürlülük açısından değerlerdirmesini yapılarak yaklaşımın katkıları ile sınırlılıklarına değinilmiştir.
The Menagerie of Literatures: A Renovating Stance on Incorporating Literature in EFL Classes Based on ‘The Paper Menagerie’ by Ken Liu
Authors: KURU Özge , TÖNGÜR Abdullah Nejat
Published: February 2021

The integration of literature in English Language Teaching (ELT) has been a contentious issue although it is commonly accepted that literature caters to a whole bunch of opportunities for foreign language teaching. The aim of this study is to point to the idea that incorporating literature into ELT classes can direct foreign language classes into more innovative path as it fosters language development with both traditional and digitally-supported communicative activities designed to develop critical thinking abilities, creativity and learner autonomy. In this regard short stories, with their privileges due to their reader-friendly length, creativity in language use encompassing refined literary elements, and the wide range of subjects they deal with offer many opportunities. In this study to link the theory with real life experiences step by step, following the critical considerations about literature, language and meaning construction, text-selection and the methodology, possible applications based on the short story called The Paper Menagerie by Ken Liu are suggested. Activities encompassing all the phases of reading process are developed to help teachers to overcome potential difficulties in collaboration with their students while creating a classroom atmosphere based on negotiation. The article concludes that reflective teachers, starting to develop their own understanding of literature, language, meaning construction and reading, enable their learners to experience the authenticity and creativity of this valuable source when forming an identity as an independent reader of literature in the second language. Literature holds many opportunities to renovate language classrooms to keep up with the 21st century improvements.
Açık ve Uzaktan Öğrenenlerin Öğrenme Ortam Tercihleriyle Kültürel Özellikleri Arasındaki İlişki
Authors: ERDEM AYDIN İrem , TALTEKİN Aslı
Published: February 2021

Bu çalışmanın amacı, açık ve uzaktan öğrenenlerin öğrenme ortam tercihlerinin Hofstede’nin kültürel boyutlarından Bireycilik ve Toplulukçuluk boyutuna göre farklılık gösterip göstermediğinin belirlenmesidir. Bu amaçla bir anket hazırlanmış, Anadolu Üniversitesi Açıköğretim Fakültesindeki 420 öğrenciye uygulanmıştır. Bu ankette öğrenenlerin kültürel özelliklerini belirleyebilmek için Bireycilik-Toplulukçuluk Ölçeği (Individualism-Collectivism Scale) ölçeği kulanılmıştır. Aynı zamanda ankette öğrencilere sistemin kendilerine sunduğu öğrenme ortamlarından hangilerini kullanmayı tercih ettikleri sorulmuştur. Araştırmada kesitsel araştırma modeli kullanılmıştır. Analiz sonuçlarına göre öğrencilerin en çok kullandıkları ortam, e-öğrenme hizmetlerindeki deneme sınavlarını uygulama olurken, en az kullanılan ortam ise, akademik danışmanlık etkinliklerine katılma olmuştur. Bunun yanında, açık ve uzaktan öğrenenlerin öğrenme ortam tercihlerinin bireycilik ve toplulukçuluk eğilimlerine göre farklılaştığı gözlemlenmiştir. Araştırma bireycilik eğilimi gösteren öğrenenlerin toplulukçuluk gösterenlere göre çevrimiçi deneme sınavlarını daha fazla tercih ettiklerini ortaya koymuştur. Bunun yanında, toplulukçuluk eğilimi gösteren öğrenenlerin bireycilik eğilimi gösterenlere göre eşzamanlı danışmanlık hizmetlerini daha fazla tercih ettikleri saptanmıştır.
FeCo Nanoparticle-Loaded Nutshell-Derived Porous Carbon as Sustainable Catalyst in Al-Air Batteries
Authors: Sumboja A. , Prakoso B. , Ma Y. , Irwan F. R. , Hutani J. J. , Mulyadewi A. , Mahbub M. A. A. , Zong Y. , Liu Z.
Published: February 2021

Developing a high-performance ORR (oxygen reduction reaction) catalyst at low cost has been a challenge for the commercialization of high-energy density and low production cost aluminium-air batteries. Herein, we report a catalyst, prepared by pyrolyzing the shell waste of peanut or pistachio, followed by concurrent nitrogen-doping and FeCo alloy nanoparticle loading. Large surface area (1246.4 m
2
 g
-1
) of pistachio shell-derived carbon can be obtained by combining physical and chemical treatments of the biomass. Such a large surface area carbon eases nitrogen doping and provides more nucleation sites for FeCo alloy growth, furnishing the resultant catalyst (FeCo/N-C-Pistachio) with higher content of N, Fe, and Co with a larger electrochemically active surface area as compared to its peanut shell counterpart (FeCo/N-C-Peanut). The FeCo/N-C-Pistachio displays a promising onset potential of 0.93 V vs. RHE and a high saturating current density of 4.49 mA cm
-2
, suggesting its high ORR activity. An aluminium-air battery, with FeCo/N-C-Pistachio catalyst on the cathode and coupled with a commercial aluminium 1100 anode, delivers a power density of 99.7 mW cm
-2
and a stable discharge voltage at 1.37 V over 5 h of operation. This high-performance, low-cost, and environmentally sustainable electrocatalyst shows potential for large-scale adoption of aluminium-air batteries.
Graphene Quantum Dots Open Up New Prospects for Interfacial Modifying in Graphene/Silicon Schottky Barrier Solar Cell
Authors: Geng Chao , Chen Xiuhua , Li Shaoyuan , Ding Zhao , Ma Wenhui , Qiu Jiajia , Wang Qidi , Yan Chang , Fan Hua-jun
Published: February 2021

Graphene/silicon (Gr/Si) Schottky barrier solar cells (SBSCs) are attractive for harvesting solar energy and have been gaining grounds for its low-cost solution-processing. The interfacial barrier between graphene and silicon facilitates the reducing excessive carrier recombination while accelerating the separation processes of photo-generated carriers at the interface, which empowers the performance of Gr/Si SBSCs. However, the difficulty to control the interface thickness prevents its application. Here, we introduce the graphene oxide quantum dots (GOQDs) as a unique interfacial modulation species with tunable thickness by controlling the GOQDs particle size. The power conversion efficiency (PCE) of 13.67% for Gr/Si-based SBSC with outstanding stability in the air is obtained with the optimal barrier thickness (26 nm) and particle size (4.15 nm) of GOQDs. The GOQDs in Gr/Si-based SBSCs provide the extra band bending which further enhances the PCE for its photovoltaic applications.
Characterization of Ni(II) and Cd(II) Metal Complexes using Schiff Base Ligand derived from 2-Thiophenecarboxyldehyde and 2 Aminothiophenol
Authors: Dalha Umar , Ahmad Aminu , Yahaya Sunusi , Kutama I.U.
Published: February 2021

Schiff base ligand derived from condensation of 2-aminothiophenol and 2‑thiophenecarboxyldehyde was synthesized and used for the preparation of Ni(II) and Cd(II) complexes. The synthesized ligand and complexes were analyzed by decomposition temperature, solubility, magnetic susceptibility, molar conductance and infrared spectra. The decomposition temperatures of the complexes are 212 and 221°C. Molar conductance values are 16.12 and 12.60 ohm-1cm2mol-1 respectively. New bands appeared in the IR spectra of the complexes in the range of 519 - 475 cm-1 and 462 - 448 cm-1 which indicate υ (M - N) and υ (M - S) vibrations respectively. Magnetic susceptibility measurement indicated that Ni (II) complex is paramagnetic whileCd(II) complex is diamagnetic. The solubility test revealed that all complexes and ligand are soluble in DMSO. The analytical data show the formation of 2:1 metal to ligand ratio for all complexes and suggested the formula [ML2].nH2O. The ligand and metal chelates have been studied for microbial activity using well diffusion method against selected bacteria and fungi. The results signify that Ni(II) and Cd(II) metal complexes inhibit more compared with Schiff base ligand against the same test organisms.
Revista Vol 10 No 2. Educación, Valores y Experiencia
Authors: Hernández Prados Maria Ángeles
Published: February 2021

El título de este número se toma del primer artículo: EDUCACIÓN, VALORES Y EXPERIENCIA. Artículo de reflexión propositiva autoría del pedagogo español Pedro  Ortega Ruiz, Director Colectivo Iberoamericano de Pedagogía de la alteridad, Ripal- Redipe. Pone énfasis en que la enseñanza de los valores conlleva una exigencia que la convierte en una tarea difícil de realizar. La naturaleza del valor reclama la referencia a la experiencia como componente necesario del valor. Pero el valor tiene múltiples formas de expresión según la cultura en que se manifiesta. El sistema educativo no puede permanecer ajeno e indiferente a lo que sucede en la sociedad. Está llamado a contribuir a su construcción desde la ética y la solidaridad. Es necesario volver a las raíces de nuestras creencias o convicciones para reencontrarnos con nuestra función educadora y ayudar al alumbramiento de otro modo de estar-en-el-mundo y ser-en-el-mundo a través de individuos que hagan posible establecer relaciones éticas con el mundo y con los demás.
Educación, valores y experiencia
Authors: Ortega Ruiz Pedro
Published: February 2021

La enseñanza de los valores conlleva una exigencia que la convierte en una tarea difícil de realizar. La naturaleza del valor reclama la referencia a la experiencia como componente necesario del valor. Pero el valor tiene múltiples formas de expresión según la cultura en que se manifiesta. El sistema educativo no puede permanecer ajeno e indiferente a lo que sucede en la sociedad. Está llamado a contribuir a su construcción desde la ética y la solidaridad. Es necesario volver a las raíces de nuestras creencias o convicciones para reencontrarnos con nuestra función educadora y ayudar al alumbramiento de otro modo de estar-en-el-mundo y ser-en-el-mundo a través de individuos que hagan posible establecer relaciones éticas con el mundo y con los demás.
Respons Pertumbuhan Aksesi Lada (Piper nigrum L.) Hasil Iradiasi Sinar Gamma terhadap Zat Pengatur Tumbuh Rootone F dan Air Kelapa
Authors: Amelia Rita , Meilawati Nur Laela Wahyuni , Nurhidayah Siti
Published: February 2021

Lada merupakan komoditas ekspor yang menguntungkan dan kaya manfaat. Hal ini menyebabkan permintaan benih lada yang berasal dari setek batang meningkat. Untuk memenuhi permintaan benih lada dibutuhkan peningkatan keberhasilan hidup setek batang. Salah satu caranya yaitu penggunaan zat pengatur tumbuh (ZPT). Beberapa ZPT akan diujikan pada lima aksesi lada hasil iradiasi sinar gamma. Aksesi ini membutuhkan waktu sekitar tiga minggu untuk menumbuhkan akar atau tunas. Penelitian ini bertujuan untuk mengetahui respons pertumbuhan aksesi lada hasil iradiasi sinar gamma terhadap zat pengatur tumbuh Rootone F dan air kelapa. Penelitian dilaksanakan pada bulan Januari – Juni 2020 di Rumah Kaca Balai Penelitian Tanaman Rempah dan Obat (Balittro), Bogor. Rancangan yang digunakan adalah Rancangan Acak Kelompok dua faktor. Faktor pertama adalah jenis aksesi yang terdiri dari lima jenis yaitu MP1, MP2, MP3, MP4 dan varietas Ciinten. Faktor kedua adalah ZPT yang terdiri dari tujuh taraf yaitu Rootone F 0.5 g, Rootone F 1 g, Rootone F 1.5 g, air kelapa 25%, air kelapa 50%, air kelapa 75% dan tanpa ZPT (kontrol). Hasil penelitian menunjukkan bahwa respons aksesi MP3 dan MP4 memiliki jumlah tunas, tinggi tunas, jumlah daun, panjang daun, dan lebar daun lebih baik daripada varietas Ciinten. Respons perlakuan ZPT Rootone F 0.5 g memiliki daun lebih lebar dan jumlah daun lebih banyak dibandingkan dengan air kelapa 75%, namun tidak berbeda nyata dengan kontrol pada umur 7 MST. Terdapat interaksi ZPT dan aksesi yang diuji dimana seluruh kombinasi memiliki persentase hidup >75% kecuali perlakuan Rootone F 1.5 g aksesi MP1 memiliki persentase hidup nyata lebih rendah.
Pengaruh ZPT dan Media Tanam terhadap Pertumbuhan Setek Daun Violces (Saintpaulia ionantha)
Authors: Sari Cinthiya Muizz Abita , Rosmala Arrin , Mubarok Syariful
Published: February 2021

Violces (Saintpaulia ionantha) merupakan tanaman hias indoor yang cukup diminati karena memiliki bentuk bunga cantik dengan daun tebal yang ditumbuhi bulu halus pada permukaannya. Pemberian kombinasi konsentrasi Zat Pengatur Tumbuh (ZPT) auksin IAA dan sitokinin BAP serta penggunaan media tanam yang tepat penting dalam proses pertumbuhan pada perbanyakan tanaman Violces. Penelitian ini bertujuan untuk mengetahui pengaruh ZPT dan media tanam terbaik serta interaksi dari ZPT dan media tanam terhadap pertumbuhan setek daun Violces (Saintpaulia ionantha). Penelitian ini dilaksanakan pada bulan Desember-April 2020. Metode penelitian yang digunakan adalah Rancangan Acak Kelompok (RAK) dengan 2 faktor. Faktor pertama adalah media tanam yang terdiri atas media tanam arang sekam (M1) dan media tanam tanah berpasir (M2). Faktor kedua adalah empat taraf kombinasi konsentrasi zat pengatur tumbuh auksin IAA dan sitokinin BAP yang terdiri dari 0 ppm IAA + 0 ppm BAP (Z1), 50 ppm IAA + 100 ppm BAP (Z2), 50 ppm IAA + 50 ppm BAP (Z3), dan 100 ppm IAA + 50 ppm BAP (Z4). Hasil penelitian menunjukkan bahwa faktor media tanam berpengaruh sangat nyata terhadap panjang akar dan jumlah akar, berpengaruh nyata terhadap persentase setek hidup dan persentase setek berakar. Faktor ZPT beserta interaksi antara ZPT dan media tanam tidak berpengaruh nyata terhadap panjang akar, jumlah akar, persentase setek hidup, persentase setek berakar, persentase setek bertunas, dan stadia warna daun.
Formulasi Biopestisida Trichoderma asperellum Samuels, Liecfk & Nirenberg
Authors: Devy Lukita , Roswanjaya Yuda Purwana , Saryanah Nur Alfi , Suhendra Ahmad , Putri Ade Lia
Published: February 2021

Biopestisida dengan efektifitas dan efisiensi tinggi akan mendukung keberhasilan praktek proteksi tanaman di lapangan.  Tahapan yang cukup penting dalam produksi biopestisida berkualitas adalah formulasi.  Penelitian ini bertujuan untuk mempelajari formulasi biopestisida berbahan dasarTrichoderma asperellum yang diisolasi dari tanah di PTPN XII Kediri, Jawa Timur.  Proses formulasi dilakukandengan seleksi substrat padat untuk produksi konidia, uji konsistensi substrat, uji scaling up produksi substrat dan uji daya simpan biopestisida.  Seleksi substrat dilakukan terhadap lima kombinasi substrat padat yaitu beras 100%; beras:jagung (50%:50%); beras:jagung (75%:25%); beras:jagung (25%:75%) dan jagung 100%.  Hasil menunjukkan bahwa beras 100% merupakan substrat terbaik untuk produksi konidia T. asperellum (3 x 109 konidiag-1).  Uji konsistensi beras 100% sebagai substrat dilakukan dalam dua tahap yaitu dalam volume sama dengan uji seleksi dan dalam volume lebih besar sebagai uji scaling up.  Hasil menunjukan terdapat konsistensi antara kedua uji tersebut dengan uji seleksi (7,88 x 109 dan 7,95 x 109 konidiag-1).  Uji daya simpan T. asprellum pada beras 100% menunjukkan stabilitas jumlah konidia (≥ 105 konidia g-1) sampai 105 hari setelah simpan pada suhu ruang.  Oleh karena itu, formulasi T. asprellum sebagai biopestisida dapat menggunakan beras 100% sebagai substrat.
Keragaman Serangga Nokturnal dan Peranannya terhadap Agroekosistem di Kota Tasikmalaya
Authors: Ramadhan R. Arif Malik , Mirantika Dewi , Septria Dina
Published: February 2021

Keragaman serangga dinilai dapat memberikan kontribusi terhadap kehidupan manusia, termasuk peranan serangga dalam suatu agroekosistem. Serangga memiliki berbagai peranan dalam agroekosistem meliputi serangga hama, polinator, predator, parasitoid, dan dekomposer. Monitoring serangga merupakan langkah awal yang dapat dilaksanakan guna mengetahui keragaman dan keberadaan serangga dalam suatu agroekosistem. Informasi mengenai keragaman serangga serta peranannya terhadap agroekosistem di kota Tasikmalaya masih sangat terbatas sehingga dirasa perlu untuk melaksanakan monitoring keragaman serangga. Metode yang digunakan dalam penelitian ini adalah dengan pemasangan light trap pada 6 kecamatan berbeda di kota Tasikmalaya yaitu kecamatan Cihideung, Mangkubumi, Tawang, Tamansari, Kawalu, dan Cibeureum selama tiga hari. Serangga yang terperangkap kemudian diidentifikasi dan ditentukan peranannya terhadap agroekosistem. Berdasarkan hasil pemasangan perangkap dan identifikasi, didapatkan 15 spesies serangga berbeda. Sembilan spesies berperan sebagai hama: Drosophila spp., Oryctes rhinoceros, Lepidioma stigma, Leptocorisa acuta, Acanthocephala spp., Scirpophaga innotata, Helicoperva armigera, Spodoptera frugiperda, dan Spodoptera litura. Tiga spesies sebagai polinator: Anopheles spp., Musca domestica, dan Camponotus pennsylvanicus. Dua spesies sebagai predator: Paederus fuscipes dan Ortethrum sabina. Satu spesies sebagai dekomposer: Coptotermes curvignathus.
Prototipe Aplikasi Web untuk Pengajuan Cuti Pegawai Berbasis Online
Authors: Sudiarjo Aso
Published: February 2021

Sistem informasi kepegawaian adalah sistem yang digunakan sebagai penyimpanan dan pengolahan data pegawai, untuk mendukung personel operasional. Berdasarkan perkembangan ilmu pengetahuan dan teknologi ini semakin baik juga membuat distribusi yang lebih cepat informasinya. Akurasi, presisi, dan kecepatan merupakan faktor penting dalam pengolahan data. Data yang diolah secara terstruktur dan jelas dirancang untuk memudahkan kinerja manusia dalam mengorganisir data dengan baik. Data diolah dengan baik dan cepat akan menambah daya saing dan meningkatkan kualitas manusia atau instansi. Universitas Perjuangan merupakan salah satu instansi yang membutuhkan pengolahan data pegawai yang berhubungan dengan teknologi informasi. Universitas Perjuangan dalam hal ini membutuhkan suatu aplikasi yang berfungsi untuk meningkatkan pelayanan administrasi kepada pegawainya diantarnya data cuti, penelitian ini dilakukan terlebih dahulu dengan cara referensi, interview, observasi dan studi kepustakaan. Hasil penelitian yang dilakukan yaitu perototipe sistem informasi pengajuan cuti pegawai,. Sistem informasi yang akan dikembangkan berbasis web yang dapat diakses oleh pegawai  dengan menggunakan bahasa pemrograman PHP dan MySQL sebagai pangkalan data
Klasisfikasi Indek Kepuasan Nasabah Menggnunakan Metode Binary Classification Dengan Algoritma Naïve Bayes Untuk CRM Di Asuransi Bumi Putera Bandung
Authors: Masri Lugina , Pudjiantoro Tacbir Hendro , Hadiana Asep Id
Published: February 2021

Customer Relationship Management ( CRM ) adalah strategi pemasaran yang digunakan oleh suatu organisasi atau perusahaan untuk dapat menciptakan dan mempertahankan suatu hubungan yang baik juga berkelanjutan dengan nasabah dan mengurangi kemungkinan para nasabah pindah ke perusahaan lain. Bumiputera Muda adalah perusahan yang bergerak di bidang asuransi umum yang berlokasikan di Kota Bandung. Asuransi merupakan hal yang penting pada saat ini untuk menjaga aset, memberikan proteksi pada hal-hal yang tidak terduga dan membatu memimalkan kerugian pada kejadian yang tidak terduga. PT. Asuransi Bumiputera Muda memiliki target nasabah/customer ialah masyarakat, instansi dan indusrti. Pada kasus yang sering ditemukan nasabah kesulitan untuk mendapakan informasi dan perkembangan pelayanan dalam menjadi nasabah asuransi dan sering kali pihak asuransi tidak dapat menangani kebutuhan nasabah tersebut secara baik akibat terbatasnya aliran informasi yang terjadi serta pihak asuransi belum mengetahui tingkat kepusan nasabah. Hal tersebut akan berdampak pada kurang harmonisnya hubungan yang terjadi antar keduabelah pihak. Disisi lain, seiring banyaknya persaingan layanan asuransi serta kompetitor mengharuskan owner memasang strategi bisnis yang difokuskan pada kepuasan nasabah serta meningkatkan kualitas hubungan dengan nasabah yang sudah ada. CRM merupakan salah satu strategi bisnis yang cocok dalam menangani permasalahan yang terjadi serta penggunaan Binary Classification dengan algoritma Naïve Bayes dapat mengetauin index kepusan dengan cara pengelolaan pada informasi kuisoner yang didapat dari nasabah. CRM sendiri memiliki 3 fungsi utama untuk perusahan yaitu Acquire, Enhance dan Retain. CRM ini dapat mengatasi permasalahan yang terjadi sehingga akan terjalinnya keharmonisan dan loyalitas nasabah dengan pihak asuransi.
Sistem Pendukung Keputusan Untuk Menentukan Rekomendasi Wisata Dengan Menggunakan Metode Profile Matching dan SMART
Authors: Fauzi Ivang Fahmi , Rahmatulloh Alam , Nurachman Andi
Published: February 2021

Empirically tourism has shown increasing growth marked by an increase in the frequency of people who travel. Tourism activities create many benefits including the spread of development, foreign exchange earnings, regional income through tax collection, employment and creating business opportunities. The problem that often arises is that there are still many people who travel, but instead it creates new thoughts. Traveling is also an important physical need without us knowing. One of the decision-making problems faced with various criteria is the process of selecting tourist attractions. In the process of profile matching in broad outline is the process of comparing the competency of visitors into the competence of tourist attractions so that the competency differences can be known (also called a gap), the smaller the gap produced, the greater the value weights which means it has a greater chance for the priority of certain tourist attractions chosen by tourists (visitors). While the SMART (Simple Multi-Attribute Rating Technique) method is a multi-criteria decision making method. This multi-criteria decision making technique is based on the theory that each alternative consists of a number of criteria that have values and each criterion has a weight that illustrates how important compared to other criteria. Each tourism object has the value of road access criteria, facilities, prices and visitors from the results of the previous profile matching calculation, then the weight normalization calculation from the simple multi attribute rating method is calculated and summed to find out the final score results, and then descending. From the results, the selection of suitable tourism object is very objective because it has fulfilled the assessment of each criteria.
Perbandingan Identifikasi Wajah Dengan Ekstraksi Fitur Haralick Dan CNN
Authors: Cahya Fani Nurona
Published: February 2021

Kecanggihan teknologi telah berdampak pada setiap segi kehidupan. Salah satunya pengolahan citra yang menjadikan objek wajah sebagai karakter utama. Deteksi wajah digunakan untuk mengetahui ada atau tidaknya wajah pada suatu gambar sehingga keberadaannya sangat vital. penelitian ini adalah untuk mendapatkan algoritma pengenalan yang kuat dengan akurasi tinggi. Struktur umum proses pengenalan wajah dalam penelitian ini mencoba dua eksperimen yakni dengan menggunakan Feature Extraction Haralic dengan Random Forest, dan klasifikasi dengan menggunakan CNN. Penelitian feature ectraction dengan haralic ini terdiri dari tiga tahap. Ini dimulai dengan tahap pra-pemrosesan: konversi ruang warna dan pengubahan ukuran gambar, dilanjutkan dengan ekstraksi fitur wajah, dan kemudian set fitur yang diekstraksi diklasifikasikan. Dalam sistem ini, Random Forest Classifier dan CNN akan menajadi acuan novelty untuk merealisasikan tahap terakhir berdasarkan fitur wajah. Hasil akurasi dari eksperimen ini masih kurang sehinggap perlu mencoba eksperimen lain.
The role of epigenetic mechanisms in the pathogenesis of diabetic nephropathy
Authors: Aitbaev K. A. , Murkamilov I. T. , Fomin V V , Murkamilova Zh. A. , Yusupov F. A.
Published: February 2021

Diabetic nephropathy (DN) is a chronic complication of diabetes and the most common cause of the end-stage renal disease (ESRD). Numerous factors have been considered, both contributing to the development of DN, and participating in its pathogenesis. However, to date, the molecular mechanisms, that lead to the development of DN, remain not fully understood. Recently, with the development of high-performance technologies, evidence demonstrating epigenetic mechanisms of regulation of gene expression, including DNA methylation, non-coding RNAs, and histone modifications that play a key role in the pathogenesis of DN through the secondary regulation of genes are starting to appear. All these data can contribute to the creation of new, more effective diagnostic and therapeutic technologies for DN.
The effect of the components of the renin-angiotensinaldosterone system on the development of diabetic nephropathy in type 1 diabetes (review)
Authors: Skobeleva K. V. , Tyrtova L. V.
Published: February 2021

One of the key roles in the development of diabetic nephropathy belongs to the renin-angiotensin-aldosterone system (RAAS), which is involved in the regulation of hemodynamics, systemic and intrarenal pressure, production of profibrogenic and growth factors, vascular remodeling. At the end of the twentieth century, local (tissue) RAAS elements from renin to aldosterone were found in tissues and target organs (including kidneys). Tissue RAAS plays a leading role in the development of vascular complications of diabetes mellitus (DM): cardiovascular disease, diabetic nephropathy, and retinopathy. It is this fact that explains in many ways the pathogenetic role of RAAS in the defeat of target organs even with normal or low plasma renin activity (ARP). RAAS activation occurs long before the clinical signs of diabetic nephropathy, which makes it possible for earlier prevention and correction of initial changes in the study of its components, as well as reducing disability and the output of patients in chronic kidney disease. Given the tendency to “rejuvenate” diabetes mellitus, the lability of the course of the disease in childhood, the high hormonal activity in this group of patients, and, therefore, the greater the risk of complications, the timely diagnosis of the initial manifestations of DN is of high relevance and relevance.
Polyclonal free light chains in IgA-nephropathy: correlation with clinical and morphological parameters and prognostic significance
Authors: Churko A. A. , Khrabrova M. S. , Smirnov A. V.
Published: February 2021

BACKGROUND. Mechanisms of the initiation of renal interstitial inflammation and fibrosis caused by immunoglobulin monoclonal free light chains (mFLC) in monoclonal gammopathy are well established. As far as these damage pathways are considered to be universal we hypothesize that polyclonal free light chains (pFLC) could have a similar effect on tubular and interstitial tissue and lead to chronic kidney disease (CKD) progression in primary glomerulopathies. THE AIM of this retrospective study was to analyze the association of pFLC kappa (pFLC-κ) and lambda (pFLC-λ) assessed in serum by Freelite® with clinical and morphological parameters and CKD progression in IgA-nephropathy (IgAN) cohort.

PATIENTS AND METHODS. In this retrospective study, we enrolled 24 patients with IgAN proven by kidney biopsy (KBx). pFLC-κ and pFLC-λ levels were assessed in all cases at the time of KBx by Freelite® method (N pFLC-κ=3.3-19.4 mg/l, N pFLC-λ=5.7-26.3 mg/l). The normal κ/λ ratio was the inclusion criterion. In all cases, we determined serum creatinine, estimated glomerular filtration rate by CKD-EPI method (eGFRCKD-EPI), and daily proteinuria. Morphological findings were defined semiquantitatively by light and immunofluorescence microscopy. Oxford MEST-C score was evaluated as well as % of glomerulosclerosis. Correlation between parameters was assessed by Spearman’s coefficient. Cox proportional hazards regression was used to analyze the association of parameters with the progression of CKD estimated as an elevation of serum creatinine ≥25 % from the initial level or the initiation of renal replacement therapy at the end of the follow-up period (median was 28 (7; 37) months).

RESULTS. Median of pFLC-κ 30.2 (6.1; 67.5) mg/l, median of pFLC-λ 27.6 (11.1; 92.1) mg/l. Levels of pFLC-κ and pFLC-λ were increased in 66.7 % and 50 % of patients, respectively. eGFR CKD-EPI median was 41 (26; 65) ml/min/1.73m2. Serum creatinine correlates with pFLC-κ (R=0.62, p<0.01) and pFLC-λ (R=0.45, p=0.03). Among morphological parameters pFLC-κ correlates with interstitial inflammation (R=0.47, p=0.02), tubular atrophy (R=0.54, p<0.01), interstitial fibrosis (R=0.44, p=0.03), peritubular capillaritis (R=0.42, p=0.04), T-score (R=0.66, p<0.01) and combined MEST-C score (R=0.45, p=0.03). For pFLC-λ the correlations with tubular atrophy (R=0.45, р=0.03) and Т-score (R=0.56, p<0.01) were shown. In Univariate Cox regression analysis pFLC-κ and pFLC-λ were associated with CKD progression (Exp(ß)=1.053; 95,0 %CI 1.003-1.105; p=0.038 and Exp(ß)= 1.041; 95,0 %CI 1.002-1.082; p=0.038, respectively)

 CONCLUSION. Polyclonal FLC, mostly pFLC-κ, were associated with tubulointerstitial inflammation and fibrosis in patients with IgAN. Increased levels of either pFLC-κ or λ could be proposed as a predictor of CKD progression in patients with IgAN.
Possibilities of predicting the risk of cardiorenal syndrome in patients with chronic kidney disease on the background of congenital malformations of the urinary system
Authors: Mambetova A. M. , Вizheva D. V. , Mokayeva M. K. , Nagatsyeva A. L.
Published: February 2021

BACKGROUND. Currently, there is no doubt that there is a close relationship between the condition of the kidneys and the cardiovascular system. Neurohormonal systems various parts long-term hyperactivation is important in the development of pathological processes. Natriuretic peptides provide cardio and renoprotective effects, inhibit the activity of the renin-angiotensin-aldosterone system (RAAS). AIM. To establish the prognostic significance of determining the concentration of natriuretic peptides in comparison with the activity of RAAS in children with congenital malformations of the urinary system to assess the risk of cardiovascular complications.

PATIENTS AND METHODS. 76 patients with congenital malformations OUS aged 3 to 18 years were examined: – 40 children with congenital vesicoureteral reflux, – 18 children with hydronephrosis, 18 children with other forms of OUS dysembryogenesis ( 10 patients with renal agenesis, 8-with hypoplasia). The control group consisted of 10 clinically healthy children of the appropriate age. The following parameters were determined in the blood by the enzyme immunoassay: renin, aldosterone, n-terminal propeptide of natriuretic hormone (NТ-рroВNР).

RESULTS. Hyperproduction of NТ-рroВNР was observed in 61.8 % of patients, stimulation of renin and/or aldosterone production in 39.5 % of cases. Elevated levels of natriuretic peptides were found in 32.8 % of cases in 25 children with congenital OUS defects without signs of arterial hypertension (AH) and left ventricular hypertrophy (LVH). Significantly higher concentrations of (NТ-рroВNР), renin, and aldosterone are recorded in patients with AH and LVH.

CONCLUSION. The increased level of natriuretic peptides is noted earlier than the clinical and instrumental signs of heart dysfunction are noticeable, it is important in identifying early stages of cardiovascular complications, evaluating the prognosis, and in justifying renoprotective treatment in pediatric Nephrology practice.
Publication of a scientific article in for an english-language journal. Part 5
Authors: Nevorotin A. I. , Awsiewitsch I. V. , Sukhanov I. M.
Published: February 2021

This article is the continuation of analysis and discussion from the book by Professor AI Nevorotin "Matrix phraseological collection: a manual for writing a scientific article in English". The Matrix phraseological collection is a kind of catalog of text samples. The samples were from articles selected from the leading English-language scientific journals and were systematized in such a way that when writing an article in English, Russian researchers are able easy to find examples suitable for his/her own work. Furthermore, the selected samples can be transformed accordingly saving the semantic and syntactic relations between the elements and, finally, be inserted into the text. The next, fifth, article of this series is devoted to the comparative evaluation of experimental findings. Particular attention is drawn to the description nuances of the biological processes' course. Preferred phrases and most relevant terms are presented.
Living well with kidney disease by patient and care-partner empowerment: kidney health for everyone everywhere
Authors: Kalantar-Zadeh Kamyar , Kam-Tao Li Philip , Tantisattamo Ekamol , Kumaraswami Latha , Liakopoulos Vassilios , Siu-Fai Lui , Ulasi Ifeoma , Andreoli Sharon , Balducci Alessandro , Dupuis Sophie , Harris Tess , Hradsky Anne , Knight Richard , Kumar Sajay , Ng Maggie , Poidevin Alice , Saadi Gamal , Tong Allison
Published: February 2021

Living with chronic kidney disease (CKD) is associated with hardships for patients and their care-partners. Empowering patients and their care-partners, including family members or friends involved in their care, may help minimize the burden and consequences of CKD related symptoms to enable life participation. There is a need to broaden the focus on living well with kidney disease and re-engagement in life, including an emphasis on patients being in control. The World Kidney Day (WKD) Joint Steering Committee has declared 2021 the year of “Living Well with Kidney Disease” in an effort to increase education and awareness on the important goal of patient empowerment and life participation. This calls for the development and implementation of validated patient-reported outcome measures to assess and address areas of life participation in routine care. It could be supported by regulatory agencies as a metric for quality care or to support labelling claims for medicines and devices. Funding agencies could establish targeted calls for research that address the priorities of patients. Patients with kidney disease and their care-partners should feel supported to live well through concerted efforts by kidney care communities including during pandemics. In the overall wellness program for kidney disease patients, the need for prevention should be reiterated. Early detection with a prolonged course of wellness despite kidney disease, after effective secondary and tertiary prevention programs, should be promoted. WKD 2021 continues to call for increased awareness of the importance of preventive measures throughout populations, professionals, and policymakers, applicable to both developed and developing countries.
A neurophonetic perspective on articulation planning
Authors: Ziegler Wolfram
Published: February 2021

This paper gives an overview of a model that predicts articulation ease for German phonological words on the basis of error data from patients with apraxia of speech (AOS). AOS is introduced as a clinical model of higher order motor processes for articulation. Word production accuracy in AOS is considered as a window into the structure of articulation plans as acquired through speech motor learning in childhood. The NLG model of apraxia of speech is explained. Applications in speech development and adult speech are outlined.
Masked priming in picture naming and lexical selection
Authors: Alharbi Manal
Published: February 2021

Our study focused on the co-activation of lexical nodes in bilinguals’ speech production. We investigated whether the co-activated lexical forms compete for selection or not and whether language proficiency level would modulate the coactivation level in bilinguals. We tested the performance of Arabic-English bilinguals using the masked priming paradigm in a picture naming task. We found that the coactivated lexical forms do not compete for selection and that proficiency level does not affect the process of lexical selection.