bluuebunny/crossref_metadata_2025 huggingface dataset:
Vocaciones científicas y tecnológicas: Identidad para América Latina desde el sur-sureste de México
Authors: Jiménez-León Rodolfo
Published: July 2022

The new social identities within educational spaces, generate a call for new knowledge to address them from models that allow the visibility of the innovations produced in educational organizations in the third stage of the 21st century. The study addresses the elements that contribute to the formation of scientific and technological vocations in young people from non-educational areas, allowing to identify models according to reality. With the experimentalism of the combined design, it is answered: (1) How is the strengthening of student identity by scientific vocations influenced from the participation in events? (2) What is the relationship between identity, symbol and event in the school culture? Through the qualitative approach with narrative interaction are defined the dimensions of (1) educational context, (2) identity, and (3) symbols of the South-Southeast of Mexico. This Is achieved from the interpretive phenomenological paradigm with the participation of students, teachers and communities of experts with the support of grounded theory. The document provides a descriptive methodological framework and the review of international qualitative studies on methodological techniques. Likewise, it proposes lines of action for the development of effective schools and strong organizational cultures for the management of the institutional image in the areas of identity and communication.
Keywords: Scientific culture; Social identity; Educational management; Social sciences; Educational policy.
Usabilidad y apropiaciones de las TIC´s entre los estudiantes universitarios de la Facultad de Ciencias y Técnicas de la Comunicación de la Universidad Veracruzana
Authors: Cano González Mariedna
Published: July 2022

Over the years and technological progress, many aspects have emerged in various areas of daily life, education being a sector of constant updating, it is then that ICTs have become a fundamental piece for new teaching practices and Learning; Higher education, capable of improvement and avant-garde, integrates ICTs in these processes, so the research sought to know how students perceive them as part of their training, how much functionality they manage to distinguish, usability (commissioned of arguing how useful software, a processor, etc.) can be) that university students grant by being active users of the wide options and technological tools that they currently have according to their appropriations or perceptions, for which applied a mixed approach, resulting in the degree of usability that students give to the use of ICT is very high, 98.3%.
Keywords: ICT; Usability; Learning; Mediation; Technology tools
Tavuk eti ekstraktı üretimine propolis ilavesi ve depolama sürecinde bazı özelliklerinin belirlenmesi
Authors: YERLİKAYA Sabire , SARIÇOBAN Cemalettin
Published: July 2022

Amaç: Bu çalışmada farklı konsantrasyonlarda propolis ilavesi yapılan tavuk göğüs eti ekstraktının (tozunun) depolama süresi boyunca bazı özellikleri belirlenmiştir.
Materyal ve Yöntem: Bu amaçla, örnekler 4 gruba ayrılarak: (1) tavuk göğüs eti ekstraktı kontrol grubu (% 0, propolis eklenmemiş), (2) % 1 propolis içeren tavuk eti ekstraktı, (3) % 2 propolis içeren tavuk eti ekstraktı, (4) % 3 propolis içeren tavuk eti ekstraktı örnekleri hazırlanarak ambalajlanıp oda sıcaklığında 120 gün boyunca depolanmıştır. Depolamanın 15., 30., 60., 90. ve 120. günlerinde renk, yağ, thiobarbitürik asit (TBA), ile 120.günde, taramalı elektron mikroskobuyla (SEM) görüntüleme, aminoasit ve protein içerikleri belirlenmiştir.
Araştırma Bulguları: Tavuk eti ekstraktının ortalama, protein, yağ ve TBA sayıları sırası ile ; %69.38, % 6.17 ve 0.233 mg malonaldehit/kg olarak belirlenmiştir. Propolis ilavesi örneklerin renginde koyulaşma meydana getirmiştir. Depolamanın 120. gününde protein sonuçları %60.24-71.55 olarak belirlenmiş olup, propolis ilavesinin ürün proteinini arttırdığı tespit edilmiştir. Örneklerde 16 adet aminoasit tespit edilmiş olup; en yüksek konsantrasyonda bulunan aminoasit ise glutamik asit olmuştur.
Sonuç:Örneklerdeki propolis konsantrasyonunun artması son ürünün protein içeriğini yükseltmiştir. TBA sayılarını ise oldukça düşürmüştür. Bu çalışmada farklı konsantrasyonlarda propolis ilavesinin tavuk eti ekstraktlarının bazı özelliklerine olumlu etkisinin olduğu belirlenmiştir. Özellikle TBA sayılarının düşürülmesine yardımcı olduğu için lipit oksidasyonunun önlenmesinde propolis kullanımı önerilebilir.
Examination of the changes of Kilis Cumhuriyet Square in the historical process
Authors: TAŞÇIOĞLU Saliha
Published: July 2022

Objective: The objective of this study was to reveal the changes at Cumhuriyet square that has occurred over the years. While determining the existing qualities and characteristics of the work square, it was aimed to maintain its continuity within a sustainable conservation approach.
Material and Methods: The formation of Cumhuriyet Square, the changes that has occurred over the years, was examined through observations and analyzes achieved on existing maps. The study, which also includes the final application project, reveals the current state of the square after the implementation.
Results: At the end of the study, it has been determined that the arrangement and material selections do not reflect the identity of the city and the existing green space has decreased. Therefore, it is important to prevent from incorrect applications.
Conclusion: In order to continue their contribution of the squares to the city, preserving them and transferring to the future generations, qualified regulations that meet the needs of the users should be developed.
Farklı sulama yöntemlerinin İtalyan çiminin (Lolium multiflorum) verim, bitki su tüketimi ve bazı yem kalitesi değerlerine etkileri
Authors: ÖZTÜRK Ozan
Published: July 2022

Amaç: Bu çalışmada Kırklareli koşullarında farklı sulama yöntemlerinin İtalyan çiminin verim, kalite ve su tüketim değerlerine etkisini incelemek amaçlanmıştır.
Materyal ve Yöntem: Çalışma tesadüf blokları deneme desenine göre 4 tekrarlı olarak yürütülmüştür.
Araştırma Bulguları: En yüksek yeşil ot verimi (8007.20 kg/da) ve en yüksek kuru ot verimi (1508.74 kg/da) yüzey üstü damla sulama sistemiyle sulanan parsellerden elde edilmiştir. En yüksek ham protein içeriği (%14.69) yağışa dayalı koşullarda yetiştirilen parsellerde, en düşük ham protein içeriği ise (%13.17) 20 cm derinliğine yerleştirilen damla sulama sistemiyle sulanan parsellerde belirlenmiştir. Toprak üstü damla sulama sistemi ile sulandığı koşullarda ortalama 629.74 mm, 20 cm lateral derinliğinde sulanan koşullarda ortalama 574.74 mm, 40 cm lateral derinliğinde sulanan koşullarda ortalama 571.65 mm sezonluk bitki su tüketimi olduğu görülmüştür. Günlük bitki su tüketim değerleri ise sırasıyla 9.29 mm, 8.63 mm ve 8.48 mm olarak tespit edilmiş.
Sonuç: Toprağın 40 cm derinliğine yerleştirilen laterallerle yapılan sulama uygulamaları su tasarrufu sağlamakla birlikte, 20 cm derinliğine yerleştirilen laterallerle yapılan sulamalar hem su tasarrufu, hem de 40 cm derinliğinde yapılan sulamadan daha yüksek verim elde edilmesini sağlamıştır.
Çekirdeksiz kuru üzümde fiyat analizi
Authors: SAVAŞ Yüksel , IŞIN Ferruh
Published: July 2022

Amaç: Kuru üzüm ihraç fiyatının ne ölçüde borsa fiyatına yansıdığının ve bu fiyatlar ile ihracat miktarı arasındaki etkileşimin ortaya konulması amaçlanmıştır.
Materyal ve Yöntem: Bu çalışmada 2010 yılı Eylül ayından itibaren 128 aylık Türkiye kuru üzüm ihraç birim fiyatı ve Manisa Ticaret Borsası (yurtiçi fiyat) aylık ortalama fiyat verileri tek değişkenli zaman serisi analizine tabi tutulmuştur. Çalışmanın ikinci aşamasında fiyat serilerine Türkiye kuru üzüm ihracat miktarı serisi de eklenerek VAR analizi kullanılmıştır.
Araştırma Bulguları: İncelenen dönemde Manisa Ticaret Borsası fiyatları ile ihracat birim fiyatları oranlandığında ihracat gelirinin ortalama %80’inin üretici eline geçtiği belirlenmiştir. 2021-2022 üretim sezonu başlangıcında kuru üzüm ihraç fiyatının yaklaşık 2 ABD doları/kg, borsa fiyatının 1,40 ABD doları/kg civarında olacağı öngörülmüştür. Borsa kuru üzüm fiyatı 2 ABD doları/kg ve üzeri seviyelerde olduğunda üretim alanlarında artışın devam edeceği, 1,30 ABD doları/kg seviyelerinde ise üretim alanı artışının duracağı öngörülmüştür.
Sonuçlar: Borsa kuru üzüm fiyatı ile kuru üzüm ihracat fiyatı ve borsa kuru üzüm fiyatı ile ihracat miktarı arasında karşılıklı zamana bağlı gecikmeli ilişkinin olduğu belirlenmiştir. Değişkenler arasında etki etme gücü en fazla olanın borsa kuru üzüm fiyatı olduğu görülmüştür.
From Ritual Theory To a Spiritual Biology: Prayer and the Activation of Chakras-Hormones in Human Metabolism
Authors: Widodo Aris , Purbowati Dwi
Published: July 2022

Prayer as one of the essentials of human beings as "homo Deus", has become the object of studies from diverse perspectives: theosophical, sociological, psychological, phenomenological, and even political. This study will, however, shed light on this issue from another angle, namely a bio-spiritual standpoint, since the human being is made up of psycho-somatic features, or body, mind, and soul, with particular reference precisely to the human metabolism: endocrine system. This article will argue that human hormones, which have a pivotal role in human metabolism, are related to seven glands. These glands are actively managed to be stipulated by the activation of seven subtle energy centers, chakras, which can be done, among other things, by prayer (ṣalāh). To say the other way round, prayer (ṣalāh) will activate the seven chakras that will, in turn, stimulate the seven glands of the human endocrine system and will eventually boost the hormones that are significant for human life. In this way, this study will provide more illustration where "Scientia Sacra" (sacred science), concerning prayer (ṣalāh), meets "profane" science in a sort of "spiritual biology."
Evaluación de la resistencia antibiótica de bacterias aisladas de mastitis subclínica en bovinos de establos lecheros de Lurín, Lima
Authors: Miranda Quezada Miguel , Morales-Cauti Siever
Published: July 2022

El objetivo del estudio fue determinar la resistencia antibiótica de bacterias aisladas de cuadros de mastitis subclínica en cuatro establos lecheros del distrito de Lurín, Lima - Perú, el año 2017. Se evaluaron 586 vacas Holstein sin cuadros de mastitis clínica durante la estación de verano, mediante la prueba de California Mastitis (CMT). Se colectaron muestras de leche de los cuartos que resultaron positivas al CMT (+, ++, +++) y se procedió al cultivo bacteriológico (agar sangre y agar McConkey) y se realizaron pruebas bioquímicas. Se evaluó la resistencia microbiana a ocho antibióticos utilizando la prueba de sensibilidad Kirby-Bauer. Se encontró 43.7% (256/586) de vacas con mastitis subclínicas y 12.4% (291/2344) de cuartos mamarios afectados. Las bacterias aisladas con mayor frecuencia fueron Klebsiella oxytoca (20.2%), Enterobacter cloacae (12.1%), y Streptococcus agalactiae (9.1%). Se observó resistencia a antibióticos en K. oxytoca a penicilina, cefalotina, amikacina, estreptomicina, tetraciclina, gentamicina, cefalexina y enrofloxacina entre un 62.9% y 91.9%. Las cepas de E. cloacae presentaron 100% de resistencia a la penicilina y para cefalotina, amikacina, estreptomicina, tetraciclina, gentamicina, cefalexina y enrofloxacina, entre 86.5% y 97.3%. En los aislados de S. agalactiae la resistencia observada a la penicilina, cefalotina, estreptomicina, tetraciclina, gentamicina, cefalexina y enrofloxacina estuvo entre el 10.7% y 82.1%. Para la amikacina la sensibilidad registrada fue del 100%.
Determinación de los residuos de triclabendazol en leche de vacas procedentes de dos centros de crianza de ganado destinadas a la producción de derivados lácteos en el departamento de Cajamarca
Authors: Huamán María , Villegas León , Canales Marco , Terashima Angélica
Published: July 2022

El objetivo del presente trabajo fue determinar la presencia y concentración de residuos de triclabendazol (TCBZ) en leche cruda procedentes de dos centros ganaderos de productos lácteos en Cajamarca, Perú. Se realizaron técnicas de sedimentación rápida (TSR) y Kato-Katz para detectar y cuantificar huevos de Fasciola hepatica a partir de muestras de heces y la detección y cuantificación de Triclabendazol TCBZ, sulfóxido de triclabendazol (TCBZSO) y sulfona de triclabendazol (TCBZSO2) se realizó mediante Cromatografía Líquida de Alta Performance con detector de Arreglo de Diodos (HPLC-DAD) a partir de muestras de leche. Se encontraron huevos de Fasciola hepatica en muestras de heces de vaca tratadas con TCBZ solo de uno de los centros. Tras un tiempo de retiro de 20 días, se detectaron TCBZSO y TCBZSO2 en la leche a una concentración mínima de 0,006 ug/mL y 0,015 ug/ mL, respectivamente. No se encontró TCBZ en el mismo tiempo de retiro. Tanto la dosis única de TCBZ como la basada en la experiencia del criador (criterio personal arbitrario) fueron ineficaces para el tratamiento y control de la fasciolosis entre el ganado infectado dentro de este estudio. En este sentido, la autoridad sanitaria nacional debe establecer un tiempo de retiro y un límite máximo de residuos para garantizar la inocuidad de los productos lácteos y descartar la probabilidad de asociación con la resistencia a TCBZ en humanos.
THE ACCEPTANCE OF MEDICAL RECORD OFFICER TOWARDS MRMIS IN X HOSPITAL MATARAM
Authors: Ismatullah Nurul Khatimah , Widodo Aris Puji , Nugraheni Sri Achadi
Published: July 2022

Background: MRMIS needs to be evaluated to know the actual conditions of implementing the system . One of the evaluations that can be done is user acceptance of MRMIS.
Aims: The study aims to determine MRMIS acceptance in X hospital Mataram City based on the variables in the UTAUT model.
Methods: This is a quantitative study with a correlational approach. The sample size was 70 medical record officers using total sampling. Data processing used Partial Least Square (PLS) methodd.
Results: The test results showed the t-statistic of effort expectancy was 2.507, facilitating conditions 3.787 behavioural intention 4.928, however the performance expectancy, social influence and moderate variables like age and gender variables had t-statistic values below 1.96.
Conclusion: The variables of effort expectancy, enabling conditions, and behavioural intentions all have a significant impact on respondent acceptance of MRMIS, whereas the variables of performance expectancy, social influence, and moderate variables of age and gender do not.
Pengembangan latihan imagery untuk meningkatkan lay up shoot bola basket di klub hutama manggala malang
Authors: Amin Zakiy Zainul , Rahayuni Kurniati , Taufik Taufik
Published: July 2022

Tujuan dari penelitian ini adalah untuk pengembangan latihan imagery untuk meningkatkan lay up shoot bola basket di klub bola basket Hutama Manggala Kota Malang. Pengembangan ini menggunakan metode Research and Development (R&D) model Borg & Gall menggunakan 9 langkah. Produk divalidasi oleh 3 ahli, dengan: (1) ahli psikologi, (2) ahli bola basket, dan (3) ahli media. Penilaian validator menunjukkan hasil dari ahli media sebesar 75% (cukup valid), ahli psikologi sebesar 89,29% (sangat valid), ahli bola basket sebesar 64,29% (cukup valid). Produk media diuji coba terhadap kelompok kecil sebanyak 1 pelatih dan 4 atlet dipilih dengan acak berdasarkan kemampuan. Dalam uji coba kelompok besar sebanyak 1 pelatih dan  14 atlet. Didapatkan hasil dari uji kecil 98% (sangat valid) serta uji kelompok besar 97% (sangat valid). Berdasarkan hasil uji kelompok kecil dan besar produk video dinyatakan layak untuk digunakan.
Event-triggered Observer-based Robust H∞ Fault-tolerant Control for Markov Jumping NCSs
Authors: Fu Xingjian , Geng Xinyao
Published: July 2022

For network control systems (NCSs) with parameter uncertainties, packet loss and time-delays, the design for the observer and robust H∞ fault-tolerant controller is discussed with the event-triggered mechanism. The random Markov jumping system is used to describe the NCSs with faults. In order to reduce the frequency of data transmission and save network channel resources, the discrete event-triggered mechanism is utilized, which allows the NCS to transmit the signal when the trigger condition is met only. Under this mechanism the system states are estimated by the observer provided, while a robust fault-tolerant controller is designed for actuator failures, so that the NCSs can remain stable in the event of failures. Finally, the proposed method is verified by simulation, the respective results showing its validity and feasibility.
Climatic comparison between Belgium, Champagne, Alsace, Jura and Bourgogne for wine production using the regional model MAR
Authors: Doutreloup Sébastien , Bois Benjamin , Pohl Benjamin , Zito Sébastien , Richard Yves
Published: July 2022

In Belgium, vineyards have strongly increased over the last decades. Is it a trendy effect, or is Belgium becoming an increasingly favourable country for viticulture? A related issue is whether Belgium is similar to another French region from a climatic point of view. To address these questions, we use here the regional climate model MAR to provide high-resolution (5 km) climate information over the territory of Belgium and the north-eastern quarter of France. We first evaluate MAR outputs from a climate point of view against more than 150 weather stations and then from a viticulture point of view by computing bioclimatic indices, as well as key phenological dates and frost risk. The second step consists in comparing the four northernmost French wine regions (Champagne, Bourgogne, Jura and Alsace) with the Belgian wine region. MAR simulations are generally consistent with the observation, especially for the dates of the main phenological stages of the vine. Simulations of a frost risk in spring, heat stress in summer and Huglin’s heliothermal index show slightly more disagreement, but biases remain moderate. The Belgium wine region appears to be quite comparable to the Champagne and Jura regions, despite colder conditions that influence its bioclimatic indices. Under current climate conditions, the main risk for Belgian vines is frost after bud break.
Yeast metabolic activity is sufficient to create a wine like aromatic feature in a synthetic grape must—a sensory-driven approach
Authors: Fairbairn Samantha C. , Monforte Ana Rita , Brand Jeanne , Silva Ferreira António C. , Bauer Florian
Published: July 2022

Wine is characterised by an underlying aromatic volatile profile, which allows human subjects to easily recognise the product as “wine” by smell alone. Yeast metabolism significantly contributes to wine organoleptic properties, and some yeast metabolism-derived compounds contribute to the vinous character of wine. However, the relative contribution of yeast and grape-derived metabolic compounds to the sensory perception of a product as “wine-like” remains unexamined. This study explores the possibility of creating a wine-like aroma by yeast metabolic activity alone. For this purpose, we fermented a simple synthetic media without any grape-derived aromatic compounds or precursors thereof. Fermentation products were evaluated for the degree of wine-like sensory perception. The synthetic grape juice nitrogen, sterol and fatty acid composition were altered to improve the recognition of this character. Initial fermentations resulted in products that were not recognised as wine-like, but over several reiterations, more wine-like associations were observed, with some products judged as similar to real wine. The data suggest that the wine-like character responsible for the recognition of a product as “wine” is largely the result of the de novo synthesis of aromatic compounds by yeast and does not require the contribution of grape-derived volatile compounds.
Perfil das/dos professoras/es cursistas da segunda edição do Programa Escola da Terra/Sergipe
Authors: Carvalho Tereza Simone , Lisboa Josefa de
Published: July 2022

The “Escola da Terra” Program is the only training policy for countryside educators in Sergipe that reached 160 teachers from 14 cities, in its second edition. The shortage of this training affects the development of a pedagogical practice consistent with the countryside education’s principles and goals. Thus, this article aims to analyze the profile of the teachers of the second edition of the “Escola da Terra/Sergipe” program. Therefore, we carried out a diagnostic activity with the participants, through a questionnaire about countryside education, the Brazilian and Sergipe’s countryside, and the countryside schools nucleation/shutdown. The data analyses led to the following results: most of the teachers do not know the history, the goals and the principles of the countryside education, nor the reality where they work, developing, consequently, a pedagogical practice that is distant from the subjects to whom it is intended; the group perceives the student’s parents or legal guardians inability to keep up with the activities/exercises sent home as the biggest issue to the development of their teaching practice. In conclusion, it is noted that the participating teachers have an urban understanding of the countryside and develop a teaching practice that is similar to the rural education.
N-Formylsaccharin: A Sweet(able) Formylating Agent in Mechanochemistry
Authors: Cuccu Federico , Basoccu Francesco , Fattuoni Claudia , Porcheddu Andrea
Published: July 2022

The acylation of amines has always attracted a deep interest as a synthetic route due to its high versatility in organic chemistry and biochemical processes. The purpose of this article is to depict a mechanochemical acylation procedure based on the use of acyl-saccharin derivatives, namely N-formylsaccharin, N-acetylsaccharin and N-propionylsaccharin. This protocol furnishes a valuable solventless alternative to the existing processes and aims to be highly beneficial in multi-step procedures due to its rapid and user-friendly workup.
Key Challenges and Emerging Technologies in Industrial IoT Architectures: A Review
Authors: Mirani Akseer Ali , Velasco-Hernandez Gustavo , Awasthi Anshul , Walsh Joseph
Published: July 2022

The Industrial Internet of Things (IIoT) is bringing evolution with remote monitoring, intelligent analytics, and control of industrial processes. A reference architecture provides the general layout information for the flexible integration of IIoT systems; however, as the industrial world is currently in its initial stage of adopting the full-stack development solutions with IIoT, some challenges need to be addressed. To cope with the rising challenges and provide the blueprint guidelines to develop and implement IIoT in real-time, researchers around the globe have proposed IIoT architectures based on different architectural layers and emerging technologies. In this paper, we first review and compare some widely accepted IIoT reference architectures and present a state-of-the-art review of conceptual and experimental IIoT architectures in literature. We highlight scalability, interoperability, security, privacy, reliability, and low latency as the main IIoT architectural requirements and compare how the current architectures address these challenges. We also highlight the role of emerging technologies in current IIoT architectures to address these requirements and present the literature gap for future research work to address the challenges.
A Circulating Serum Mirna-Based Model to Predict Early Mortality in Multiple Myeloma Patients Treated with Bortezomib-Based Regimens
Authors: Puła Anna , Robak Paweł , Jarych Dariusz , Mikulski Damian , Misiewicz Małgorzata , Drozdz Izabela , Fendler Wojciech , Szemraj Janusz , Robak Tadeusz
Published: July 2022

Multiple myeloma (MM) is a hematological malignancy characterized by the clonal proliferation of plasma cells in the bone marrow (BM) microenvironment. Despite the progress made in treatment, some MM patients still die within the first year of diagnosis. Numerous studies investigating microRNA (miRNA) expression patterns suggest they may be good prognostic markers. The primary aim of this study was to analyze the expression of selected miRNAs in the serum of MM patients subsequently treated with bortezomib-based regimens and determine their potential to predict early mortality. The study was conducted in 69 prospectively-recruited patients with newly-diagnosed MM admitted to the Department of Hematology of the Copernicus Memorial Hospital, Lodz (Poland) between 2017 and 2021. Among them, 17 patients experienced death within 12 months of diagnosis. The expression of 31 selected miRNAs was determined using miRCURY LNA miRNA Custom PCR Panel. The obtained clinical data included patient characteristics on diagnosis, treatment regimen, response to treatment, and follow-up. Differential expression analysis found two miRNAs to be significantly downregulated in the early mortality group: hsa-miR-328-3p (fold change- FC: 0.72, p=0.0342) and hsa-miR-409-3p (FC: 0.49, p=0.0357). Univariate and multivariate logistic regression analyses were performed to assess the early mortality rate. The final model consisted of hsa-miR-409-3p, hsa-miR-328-3p, age and R-ISS 3. It yielded an area under the curve (AUC) of 0.863 (95%CI: 0.761-0.965) with 88.2% sensitivity and 77.5% specificity. Further external validation of our model is necessary to confirm its clinical value.
Progeria and Aging - Omics Based Comparative Analysis
Authors: Caliskan Aylin , Crouch Samantha Agnetz Wilhelmine , Giddins Sara , Dandekar Thomas , Dangwal Seema
Published: July 2022

Abstract: Since ancient times aging has also been regarded as a disease, and humankind has always strived to extend the natural lifespan. Analyzing the genes involved in aging and disease allows for finding important indicators and biological markers for pathologies and possible therapeutic targets. An example of the use of omics technologies is the research regarding aging and the rare and fatal premature aging syndrome progeria (Hutchinson-Gilford progeria syndrome, HGPS). In our study, we focused on the in silico analysis of differentially expressed genes (DEGs) in progeria and aging, using a publicly available RNA Seq dataset (GEO dataset GSE113957) and a variety of bioinformatics tools. We identified several genes that appear to be involved both in natural aging and progeria (KRT8, KRT18, ACKR4, CCL2, UCP2, ADAMTS15, ACTN4P1, WNT16, IGFBP2). Further analyzing these genes and the pathways involved confirmed their possible roles in aging, suggesting the need for further in vitro and in vivo research. The graphical abstract illustrates the analysis workflow we used and will introduce in the following as an example to demonstrate the power of omics and bioinformatics.
A Novel Web-Based eMemo for Tertiary Institutions in Developing Nations: From Conceptualization to Implementation
Authors: Olabanjo Olusola
Published: July 2022

The new need to move to an online mode of administration has necessitated the adoption of Software-as-a-Service (SaaS) and Platform-as-a-Service (PaaS). The conventional paper-based administrative memorandum is relatively costly, requires manpower, insecure and non-confidential, prone to unauthorized access and has a relatively slow cycle time; among others. An electronic memo (e-memo) can save cost, offer high speed of processing, reliability and security. The aim of this work was to conceptualize, design and develop a novel semantic web-based memo platform that allows for handling memos within an organization. The tools used include HTML, CSS, PHP, JavaScript, jQuery and AJAX, MySQL. The developed system was tested in three stages. Testing was done in the Department of Computer Science of the institution of case study, then in the Faculty of Science and finally in the entire Lagos State University. Agile development method was used in the development process. The designed system was hosted on a cloud-server and a total of 43 test cases were considered and an average of four minutes was recorded for a complete memo cycle. eMemo allows users to generate, sign, treat and memo electronically. It is such a useful tool that will enhance information processing in a faster, standardized and more secure manner.
Food Texture Measurement System Using Rod Type Actuator for Imitation of Human Mastication
Authors: Nakamoto Hiroyuki , Nagahata Yuya , Kobayashi Futoshi ,   Kobe University 1-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501, Japan,   J-Oil Mills, Inc., Tokyo, Japan
Published: July 2022

Food texture is one of the most important factors in determining the personal palatability of foods, so food companies require food texture measurement and evaluation in developing novel food products. However, instruments are not fast enough or strong enough to imitate human mastication. To measure the textures of different foods, this study proposes a sensor stand that uses a rod-type actuator. The target speed and force of the sensor stand are 100 mm/s and 100 N, respectively. A food texture sensor that imitates the structure of a human tooth is attached to the sensor stand. The sensor stand and a desktop computer make up the measurement system. Using the system, the fundamental characteristics of the sensor stand with the texture sensor are demonstrated. Verification experiments confirm that the sensor stand satisfies the target values of speed and force. Experiments on actual food items also demonstrate the effectiveness of the measurement system in evaluating food textures.
Design and Fabrication of Micro Gripper Using Functional Fluid Power
Authors: Tanaka Yutaka , Suzuki Ryuta , Edamura Kazuya , Yokota Shinichi ,   Hosei University 2-33 Ichigaya-Tamachi, Shinjuku-ku, Tokyo 162-0843, Japan,   New Technology Management Co., Ltd., Tokyo, Japan,   Tokyo Institute of Technology, Yokohama, Japan
Published: July 2022

Gripping and holding mechanism of automated systems in manufacturing and distribution industries are required to flexibly accommodate various product shapes. In recent years, the gripping and holding mechanisms using jamming transition have been attracting attention because they can grasp objects of various shapes. The jamming gripping mechanism generally requires a mechanical vacuum pump to adjust the internal pressure of the gripping part, and it is difficult to miniaturize the system. An electro-conjugate fluid (ECF), a type of functional fluid, can generate a strong jet flow by applying a high DC voltage between the positive and negative electrodes. The ECF jet flow has a great potential to realize micro fluid power sources. In this paper, we proposed and prototyped a new type of small gripping and holding mechanism that uses the jet flow generated by the ECF and the jamming of granular material. A prototyped micro gripper had an outer diameter of 14 mm, a total length of 40 mm, and a tip diameter of 10 mm for gripping. A mathematical model of the micro gripper was derived by deformation of an elastic membrane and volume and pressure changes. It was verified by the mathematical model that the supplied pressure of the ECF hydraulic power source was large enough to realize gripping performance of the prototyped jamming gripper. The performance of the prototype micro gripper was numerically and experimentally evaluated the mathematical model. It was experimentally clarified that a maximum holding force of the prototyped jamming gripper was shown under the condition that filling rate of granular material was 50%. It was also clarified that the micro gripper with a built-in vacuum pump using the ECF hydraulic power source had a gripping force of up to 93 mN at an applied DC voltage of 4 kV.
Development of Bipolar Electrostatic Chuck with a Beam-Array Assembly Fabricated by Lithography
Authors: Taoka Yuki ,   School of Environment and Society, Tokyo Institute of Technology  2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan, Kawabata Kohei , Hemthavy Pasomphone , Choi Seungman , Takahashi Kunio , Saito Shigeki
Published: July 2022

This technical paper demonstrates the influence of the probe-tip surface smoothness of a bipolar electrostatic chuck (ESC) on electrostatic force. ESC, which has a silicon-based beam-array microstructure, aims to pick and place a dielectric object with a curved surface owing to the compliance of its elastically deformable beams. The ESC was fabricated using a lithography technique, specifically deep reactive ion etching (DRIE), to smooth the surface of the beam tip. The surface roughness of the beam tips was observed using a field-emission scanning electron microscope (FE-SEM), and the adhesional force was experimentally evaluated. The results show that by the smoothing process, the adhesional force per unit area is significantly increased compared to the previous study reported by Choi (one of the authors). This suggests that the proposed bipolar ESC device has great potential for use in various industries.
Conceptions and Conceptual Changes of Junior High-School Students in the Topic of Temperature and Heat
Authors: Linuwih Suharto , Putri Danastri , Asih Puji
Published: July 2022

The qualitative research was conducted in junior high school to know students’ conceptions and conceptual changes on temperature and heat, specifically on specific heat topics. This study uses the purposive sampling technique. The research was started by collecting data and observing the students. The next step was a try-out test instrument conducted in a regular eighth-grade class. The try-out test was used as an instrument test to the superior dan the regular class of seventh-grade and the superior class of eighth-grade. The research instrument was a conceptual test in essay form and then conducted an interview. The samples were the students who had many possibilities in answering the research instrument. Based on the result of the study, the students’ concepts can be divided into three types: scientific, alternative, and parallel. The conceptions of the excellent class of the seventh-grade, the regular class of seventh-grade, and the excellent class of eighth-grade are alternative concepts. The conceptual changes in the excellent eighth-grade class are decreasing students’ understanding of heat and temperature.
Development of Sophisticated Thinking Blending Laboratory (STB-LAB) to Improve 4C Skills for Student as Physics Teacher Candidate
Authors: Agustina Rena Denya , Putra Riki Purnama , Listiawati Milla
Published: July 2022

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Landslide Susceptibility Mapping along the Anninghe Fault Zone in China using SVM and ACO-PSO-SVM Models
Authors: Chen Zhuo , Zhou Hongfu , Ye Fei , Liu Bin , Fu Wenxi
Published: July 2022

In the present study, a hybrid machine learning model was designed by integrating ant colony optimization (ACO), particle swarm optimization (PSO), and support vector machine (SVM) algorithms. The model was used to map the landslide susceptibility of the Anninghe fault zone in Sichuan Province, China. Based on this, 12 conditioning factors associated with landslides were considered, namely, altitude, slope angle, cutting depth, slope aspect, relief amplitude, stream power index (SPI), gully density, lithology, rainfall, road density, distance to fault, and peak ground acceleration (PGA). The overall performance of the two resulting models was tested using the receiver operating characteristic (ROC), area under the ROC curve (AUC), Cohen’s kappa coefficient, and five statistical evaluation measures. The success rates of the ACO-PSO-SVM model and the SVM model were 0.898 and 0.814, respectively, while the prediction rates of the two models were 0.887 and 0.804, respectively. The results show that the ACO-PSO-SVM model yields better overall performance and accurate results than the SVM model. Therefore, in conclusion, the ACO-PSO-SVM model can be applied as a new promising method for landslide susceptibility mapping in subsequent studies. The results of this study will be useful for land-use planning, hazard prevention, and risk management.
Effects of Incoherent Sentences in English Undergraduate Students' Thesis Background
Authors: Kurniawan Agung Budi , Sumani Sumani
Published: July 2022

Kalimat tidak koheren memiliki konten di luar topik paragrapnya. Penelitian ini bertujuan menganalisa efek-efek penggunaan kalimat tidak koheren pada penulisan empat buah latar belakang penelitian skripsi yang dipilih secara selektif. Penelitian ini telah diselesaikan dengan menggunakan design studi kasus. Temuan utama menunjukkan keakuratan informasi mendapatkan efek paling buruk dari penggunaan kalimat tidak koheren. Temuan lain menunjukkan akibat pada kesalahan penyampaian konsep, hipotesis, dan kerangka kerja penelitian. Hal menarik diantara semua temuan adalah penggunaan kalimat yang tidak koheren dapat dilakukan dengan tidak disadari oleh para penulis. Selain itu, efek lain dari penggunaan kalimat yang tidak koheren adalah para pembaca dapat sejutu dengan informasi yang salah dipahami tanpa mereka sadari. Menghindari penggunaan kalimat tidak koheren adalah satu keterampilan yang harus dilatih oleh para penulis. Semua temuan dalam artikel ini belum pernah ditemukan oleh para peneliti lain. Selain itu, semua temuan penelitian ini dapat dipakai untuk mengkonstruksi langkah-langkah dalam penulisan karya ilmiah pada penelitian di masa yang akan datang. Kesimpulan utama bahwa penggunaan kalimat tidak koheren harus dihindari oleh para penulis karena mereka dapat menurunkan tingkat kebenaran dan keterpercayaan pada text
Automatic tuning of frequency and interchange power controllers in low-power energy systems
Authors: Fishov A. G. , Osintsev A. A. , Frolov M. Yu. , Armeev D. A. , Murashkina I. S.
Published: July 2022

The present work discusses the development of algorithms for power controller autotuning under normal operation in power units of local energy systems having low synchronous generation, which can operate in stand-alone and parallel mode with the external power grid. The power controller of a power unit is tuned in the course of routine operation following the quality indicators of recorded transients under several load commutations upon a varying amplification factor. The amplification factor for each control channel is optimised by a function that approximates the dependence of the transient characteristics on the value of this factor, including the diversity of processes and mode disturbances during power surge/shedding. The sum of weighted overshoot and process duration values is used as a process quality indicator. Owing to adaptation, the controller automatically tunes itself over time, and the control quality improves. This article presents algorithms for autotuning the power controller when regulating frequency and interchange overcurrent under isolated and parallel operation mode of the MiniGrid, respectively. Unlike frequency controller, when the interchange overcurrent controller is autotuned by transient functions associated with load commutations, the algorithm filters out high-frequency power variations resulting from electromechanical oscillations. The simulation results of autotuning the power controller for an elementary scheme, having one generator, confirm the efficiency of the presented method and algorithms. The proposed method of autotuning frequency and interchange overcurrent controllers appears promising for technological enhancement and use in MiniGrid power control systems.
Fault section location in urban distribution network based on fault marking
Authors: Zhang Ren , Liu Haoming
Published: July 2022

The goal is to propose an effective method for locating a fault segment in urban power distribution networks. Urban distribution networks have multiple outgoing lines, switches with multiple connections and have variable topology characteristics. It is found that the fault location method based on matrix algorithm has low adaptive capability and fault tolerance when dealing with complex and variable topology. Therefore, this paper proposes an efficient fault segment location method based on special fault indicators, which can significantly improve the accuracy and reliability of fault location. Accordingly, to improve the accuracy and reliability of fault location, a fault segment location method based on fault marking is proposed. The approach proposed in the paper relies on the analysis of the incident matrix, which describes the relationship between nodes and branches, and allows the use of graph theory. The branch state vector is added to obtain the adjacency matrix, which allows to describe the state of change in the dynamics of the distribution network topology. In the next step, a set of nodes and branches, which reflect the incoming and outgoing interconnections of the nodes, is established based on the selected direction of the network binding. According to the direction of the node fault current, the suspicious branches are identified and labeled to indicate the fault. By cumulative calculation and analysis of the labels, the target branches are screened out and the faulty sections of the city power supply network are identified. The results of the case study conducted in the paper show that the proposed method has good adaptability to the variable topology and increases the fault tolerance and accuracy of the developed matrix algorithm. The topological operating state of the network can be changed by controlling the switches to optimize the operation and improve the reliability of the power supply. Thus, the algorithm for fast and accurate fault location is of great importance for improving the safety and quality of urban power supply.
Distribution of noble metals between slag and matte phases during smelting of copper-sulphide and copper-nickel concentrates
Authors: Bogatyrev D. M. , Petrov G. V. , Tsymbulov L. B.
Published: July 2022

In this work, we analyse and structure the information on the distribution of noble metals during pyrometallurgical processing of copper-sulphide and copper-nickel concentrates, available in domestic and foreign scientific sources. The data on the influence of oxygen partial pressure in the system and, consequently, the matte composition, process temperature, and the phase composition of slag on the distribution of platinum group metals, gold, and silver between the smelting products were analysed. Broad-ranging information on the distribution of the examined metals between matte and slag in the processing of copper-sulphide and copper-nickel concentrates was studied. It was established that the distribution of noble metals between the products of smelting using modern analytical methods is still in its early stages. Contradictory information on the behaviour of gold, silver, and platinum group metals during the pyrometallurgical processing of copper-sulphide and copper-nickel concentrates is presented in literature due to the variations in the experimental procedures, preparation, and analysis of test samples, and, as a result, further interpretation of the obtained results. Furthermore, no data on the influence of such technological parameters as magnetite content in the slag phase, the relationship between copper and nickel in the initial furnace charge and obtained mattes on the distribution of gold, silver, and platinum group metals between the products of smelting are available. In addition, no information on the distribution of noble metals during the pyrometallurgical slags depletion obtained in oxidative smelting of copper-nickel production has been published. Thus, it was decided to perform further research on establishing optimal technological conditions for oxidising smelting of copper-sulphide and copper-nickel concentrates, as well as pyrometallurgical depletion of slags, allowing for the highest extraction rates of noble metals into the target product.
Kinematic characteristics of ultrasonic surface treatment
Authors: Samul A. G.
Published: July 2022

We investigate the kinematic characteristics of ultrasonic surface-plastic deformation when the oscillations are introduced in the direction tangential to the treated surface in order to assess the potential of this method for treating parts made of metals and alloys of various hardness. The kinematic parameters (trajectory, velocity, acceleration) of ultrasonic surface-plastic deformation were calculated in a rectangular coordinate system. Analytical dependencies were obtained for the trajectory length, resulting velocity, and acceleration as functions of the constituent types of motion (rotational, translational, oscillatory). The obtained equations and their graphical solutions allowed us to establish that, under ultrasonic surface-plastic deformation, the indenter moves along a complex trajectory with a variable velocity and acceleration. It is shown that the translation of ultrasonic oscillations to the indenter determines the complex nature of its movement, which differs significantly from that in the diamond burnishing method. In this case, the process parameters (velocity and acceleration) change according to a cyclic (sinusoidal) law, the periodicity of which depends on the frequency of ultrasonic oscillations and determines the final state of the treated surface. According the obtained results, the change in the input direction of ultrasonic oscillations (from normal to tangential) ensures the possibility of changing the contact condition from cyclic to constant, thereby affecting the deforming force during processing. It was found that the angle of oscillation input relative to the main velocity vector is a technological parameter significantly affecting the kinematic characteristics. An assumption is made about the possibility of using the tangential pattern of ultrasonic surfaceplastic deformation for parts made of metals and alloys of various hardness.
Optimisation of the bore reaming process in hybrid stacks made of carbon fibre and metal alloys
Authors: Chashchin N. S.
Published: July 2022

The present work aims to improve the existing technology of reaming bores in hybrid stacks containing a composite material interlayered with titanium and aluminium alloys. The study was conducted using statistical approaches at the stages of experimental design and data processing in the Statistica 6 and Microsoft Excel 2010 software. The bore roughness was measured using a Taylor Hobson Form Talysurf i200 contact profilometer. The height of the tool build-up edge was investigated using a Bruker ContourGT-K1 optical profilometer. Bore diameters were determined using a Carl Zeiss Contura G2 coordinate measuring machine. An experimental study was carried out using an Atlas Copco PFD-1500 automatic feed drilling unit and a 14 mm MAPAL reamer with a replaceable head. A methodology for a comprehensive experimental study of boring and reaming processes in the “OT4 titanium alloy - VT6 titanium alloy - polymeric composite materials - VT6 titanium alloy - 1933 aluminium alloy” hybrid stack was developed and implemented. It was found that the most significant factors affecting the parameters of bore accuracy, in particular, the deviation from the true bore longitudinal section profile, include the cutting speed in the first and the second degree, as well as the feed. The optimum cutting modes are a cutting speed of 7.24 m/min, a feed of 0.27 mm/rev and a machining allowance of 0.5 mm. As a result, the time of reaming one bore is reduced by 4.6 times. The optimum cooling method, ensuring the increased accuracy and reduced roughness of the bore in the aluminium alloy layer, is cooling by carbon dioxide at a temperature of -56.5°C. As a result of experimental works, basic laws governing the boring and reaming processes in multicomponent hybrid stacks composed by carbon-fibre-reinforced plastics with titanium and aluminium alloys were investigated.