bluuebunny/crossref_metadata_2025 huggingface dataset:
Reducing Voluntary Employee Turnover in Small Construction Companies for Long-term Productivity
Authors: Chagadama Prof. Dr. Joel , Luamba Prof. Dr. Desire S. , Mutamba Prof. Dr. Ir. Edouard M.
Published: December 2022

Voluntary employee turnover has caused considerable damage to small construction businesses, significantly affecting productivity, profitability, and sustainability. Based on job embeddedness theory, this qualitative multiple case study aimed to explore strategies small construction business owners use to reduce voluntary employee turnover. Participants were 4 successful small construction business owners in Virginia who successfully implemented strategies that reduced voluntary employee turnover by 75% over 5 years. Data were collected from company documents and semi-structured interviews. The three primary themes that emerged from the data analysis were; effective human resource management, favorable working conditions, and employee engagement. A key recommendation for small construction business owners is to improve human resource management, working conditions, and employee engagement. Reducing voluntary employee turnover is critical to business cost reduction and increasing key business processes’ performance. In addition, small construction business owners may use the results of this study to offer job stability to employees and increase families' and governments' incomes to realize some basic projects from revenue generated by employees’ vast career opportunities.
Modeling and Simulation of an Optical Sensor for Cancer Cell Detection
Authors: Kumar Rohit , Bharti Gaurav Kumar , Bindal Ranjit Kumar
Published: December 2022

In this article, modeling of ring resonator for the identification of the various cancer cells has been proposed. The model exhibits high Q factor and high selectivity for sensing various cancer cells. The parameters of the design are optimized for sensing cancer cells in the sample based on its distinct refractive index. The proposed device has been modeled by the FDTD simulation method which confirms satisfactorily distinct resonant wavelengths for various cancer cells. The device has explored the feasibility of label-free cancer cell sensing with improved characteristics.
Identification of Unhealthy Leaves in Paddy by using Computer Vision based Deep Learning Model
Authors: Vignesh U. , Elakya R.
Published: December 2022

India is one of the leading productions of Paddy. Compared to previous year Gross Domestic Product (GDP) Export rate of Paddy in the year 2021 has increased to around 33%. Paddy is the Major food production crop in India. Every crop is prone to many diseases throughout their lifespan. The disease can affect the crop at any stage of their growing phase. Early detection of disease is the only solution to reduce the damage. Early detection may reduce the damage caused and increase the quality as well as quantity of Production. Major disease which causes more damage in paddy production is Rice Blast, Brown Spot, Sheath Blight, Sheath Rot and False Smut. Early detection of these diseases can reduce the damage and increase the production value. Recent technology of computer vision and by using Deep learning model can accurately predict and diagnose the early symptom of diseases. We used Convolutional Neural Network classifier of deep learning model to predict the early symptom of disease in paddy. We compared four main classifier VGG16, VGG19, Inception-V3 and ResNet50, among these four Inception-V3 achieved a highest accuracy of 95.3%.
Performance Analysis of Various Fin Patterns of Hybrid Tunnel FET
Authors: Dharmireddy Ajay Kumar , Ijjada Dr Sreenivasa Rao , Latha Dr I. Hema
Published: December 2022

High speed and low power dissipation devices are expected from future generation technology of Nano-electronic devices. Tunnel field effect transistor (TFET) technology is unique to the prominent devices in low power applications. To minimize leakage currents, the tunnel switching technology of TFETs is superior to conventional MOS FETs. The gate coverage area of different fin shape hybrid tunnel field-effect transistors is more impacted on electric characteristics of drive current, leakage current and subthreshold slope. In this paper design various fin patterns of hybrid TFET devices and shows on better performance as compared with other fin shape hybrid tunnel FET. The TCAD simulation tool is used to determine the characteristics of different fin shape tunnel FET.
Speaker Recognition Assessment in a Continuous System for Speaker Identification
Authors: Singh Mahesh K. , Satya P. Mohana , Satyanarayana Vella , Gamini Sridevi
Published: December 2022

This research article presented and focused on recognizing speakers through multi-speaker speeches. The participation of several speakers includes every conference, talk or discussion. This type of talk has different problems as well as stages of processing. Challenges include the unique impurity of the surroundings, the involvement of speakers, speaker distance, microphone equipment etc. In addition to addressing these hurdles in real time, there are also problems in the treatment of the multi-speaker speech. Identifying speech segments, separating the speaking segments, constructing clusters of similar segments and finally recognizing the speaker using these segments are the common sequential operations in the context of multi-speaker speech recognition. All linked phases of speech recognition processes are discussed with relevant methodologies in this article. This entire article will examine the common metrics, methods and conduct. This paper examined the algorithm of speech recognition system at different stages. The voice recognition systems are built through many phases such as voice filter, speaker segmentation, speaker idolization and the recognition of the speaker by 20 speakers.
A Miniaturized Dual-Band Modified Rectangular-Shaped Antenna for Wireless Applications
Authors: Sharma Devesh , Kumar Ravi , Vishwakarma Rajesh K.
Published: December 2022

In this article, compact dual-band with rectangular-shaped monopole is presented for wireless applications. Presented antenna built of modified rectangular monopole and two C-shaped strips are attached on the radiating patch. An excellent matching to get the desired dual band operation is found from the back side of the substrate for possible feeding through microstrip. The suggested antenna has extremely small dimensions, measuring just 12 × 15 × 1.59 mm3 while operating at the lower frequency of 2.4 GHz, and it has a bandwidth of 400 MHz (2.1-2.5 GHz) and 6.7 GHz (3.4-10.1 GHz) accordingly with an S11 value that is less than -10 dB. An investigation of the performance capabilities of this dual-band omnidirectional antenna with a variety of geometric parameters has been carried out. The final design is constructed and measured, and the findings from simulation and measurement show a good level of agreement with one another. Across the entirety of the operating band, observable characteristics include a stable radiation pattern, strong impedance matching, and a radiation efficiency of more than 91%.
Deep Learning Techniques for Early Detection of Alzheimer’s Disease: A Review
Authors: Sanjay V , Swarnalatha P
Published: December 2022

Alzheimer's disease (AD) is the most prevalent kind of dementia illness that can significantly impair a person's capability to carry out everyday tasks. According to findings, AD may be the third provoking reason of mortality among older adults, behind cancer and heart disease. Individuals at risk of acquiring AD must be identified before treatment strategies may be tested. The study's goal is to give a thorough examination of tissue structures using segmented MRI, which will lead to a more accurately labeling of certain brain illnesses. Several complicated segmentation approaches for identify AD have been developed. DL algorithms for brain structure segmentation and AD categorization have gotten a lot of attention since they can deliver accurate findings over a huge amount of data. As a result, DL approaches are increasingly favored over cutting-edge Machine Learning (ML) techniques. This study provides you with an overview of current trend deep learning-based segmentation algorithms for analyzing brain Magnetic Resonance Imaging for the treatment of AD. Finally, a conversation on the approaches' benefits and drawbacks, as well as future directives, was held, which may help researchers better comprehend present algorithms and methods in this field, and eventually design new and more successful algorithms.
Programa de doctorado en patrimonio cultural desde un proyecto de cooperación internacional
Authors: Hernández Garrido Margarita Victoria , Soto Suárez Milene , Rodríguez Matos Neris
Published: December 2022

Este trabajo tiene como objetivo revelar el contexto de surgimiento y los componen- tes teóricos - metodológicos de un programa de formación doctoral sobre patrimo- nio cultural con enfoque interdisciplinar, elaborado en el marco de un Programade Cooperación Internacional. En lo metodológico, se propició el desarrollo de una metodología cualitativa sin desestimar lo cuantitativo. Los impactos del programa revelan un nivel superior de calidad de los procesos formativos en la Universidad de Oriente, el perfeccionamiento de competencias académicas y científicas al servicio de la sociedad, así como su contribución a las dimensiones curriculares y extracurri- culares del pregrado.
Deportes alternativos y su influencia en la motivación del alumnado
Authors: Menescardi Cristina , Villarrasa-Sapiña Israel
Published: December 2022

El objetivo del trabajo es comparar la motivación del alumnado tras la práctica de deportes alternativos (DA) y tradicionales (DT) y conocer la opinión del pro- fesorado ante esta experiencia. De los resultados se destaca que, en el grupo DA, la motivación intrínseca aumenta y la extrínseca disminuye, mientras que en el DT disminuye la motivación identificada. El profesorado valoró positivamente la experiencia como activa, dinámica, inclusiva y motivante. El profesorado debería plantearse la inclusión de los DA en sus programaciones dado el aumento de la motivación intrínseca hacia la asignatura y a las opiniones y beneficios destacados por el profesorado.
enseñanza de la otredad animal en clase de francés lengua extranjera
Authors: Ori Julia
Published: December 2022

En este artículo se propone incluir la otredad animal en la enseñanza del francés como lengua extranjera desde una perspectiva intercultural. Primero se muestra la ausencia del tratamiento de los animales desde una visión no antropocéntrica en los manuales de FLE. A continuación, se analizan seis novelas francesas contempo- ráneas en las que los humanos adoptan de alguna manera el punto de vista animal. Finalmente, se propone estudiar la otredad animal a través de una lectura interac- tiva de estas novelas.
Emprendimiento social y ciudadanía activa a través del aprendizaje experimental
Authors: Ortí Martínez José Antonio
Published: December 2022

Como parte del proyecto europeo Playeurope se ha querido conocer las experiencias de los estudiantes de los grados en Educación Infantil y Primaria para concienciar sobre la importancia de ser ciudadanos activos. La investigación realizada en 2022 conserva un diseño descriptivo cuantitativo, combinado con aspectos cualitativos. Se cuenta con una muestra de doscientos estudiantes de España e Italia. Los resulta- dos profundizan en la falta de formación al respecto a nivel universitario. El haber realizado el Manual de historias de éxito y la Guía para ser un emprendedor social ha resultado ser un avance significativo en el aprendizaje de los futuros docentes.
Förderung von Problemlösekompetenz durch Computational Thinking in den Klassen 3-6 – Theoretische Zusammenhänge und eine beispielhafte Umsetzung durch Programmiertätigkeiten an Robotern
Authors: Münzing Timo
Published: December 2022

Die Entwicklung der Problemlösekompetenz von Lernenden ist eine wichtige Aufgabe, um diese auf zukünftige und vor Allem noch unbekannte Aufgaben vorzubereiten. Durch die großen Ähnlichkeiten aktueller Problemlösetheorien zum Konzept des Computational Thinking liegt eine Korrelation nahe. Im Folgenden wird dieser Zusammenhang in der Theorie herausgearbeitet und gezeigt, wie mit Hilfe der Artifact-Centric Activity Theory eine Beispielunterrichtseinheit entwickelt wird, die das Erlernen von Computational Thinking und Problemlösen fördert. The development of learners' problem-solving competence is an important task in order to prepare them for future and, above all, still unknown tasks. Due to the great similarities of current problem-solving theories to the concept of computational thinking, a correlation is obvious. In the following, this connection is elaborated in theory, and it is shown how, with the help of Artifact-Centric Activity Theory, an example lesson is developed that promotes the learning of computational thinking and problem solving.
PENGARUH EKSTRAK ETANOL BUAH MENGKUDU (Morinda citrifolia) TERHADAP JUMLAH SEL HEPATOSIT NEKROSIS PADA TIKUS PUTIH JANTAN (Rattus norvegicus) HIPERGLIKEMIK
Authors: Goein Amadeus Michel , Sudibjo Sudibjo , Santoso Anna Lewi
Published: December 2022

AbstrakPenelitian ini bertujuan untuk mengetahui pengaruh pemberian ekstraketanol buah mengkudu (Morinda citrifolia) terhadap gambaran histologijumlah sel hepatosit yang nekrosis pada tikus putih jantan (Rattus norvegicus)kondisi hiperglikemik. Jenis penelitian ini adalah eksperimental murni denganmenggunakan metode Randomized Post Test Control Group Design. Sampeldari penelitian ini adalah hewan coba yang ditempatkan secara acak dansederhana (Simple Random Sampling). Perlakuan dilakukan kepada tikuskontrol normal (tanpa perlakuan), tikus kontrol diabetes (diinduksi aloksan 150mg/ kgBB), dan kontrol dosis 50, 100, dan 150 mg/kgBB. Hasil analisis datapenelitian ini menggunakan uji One Way ANOVA. Hasil penelitianmenunjukkan bahwa ekstrak buah mengkudu (Morinda citrifolia) memilikipengaruh terhadap gambaran histologi jumlah sel hepatosit yang nekrosis.Jumlah sel hepatosit nekrosis tikus putih jantan kondisi hiperglikemik yangdiberi dosis ekstrak etanol buah mengkudu 50 mg/ kgBB/ hari adalah sebesar38.76 sel, pada jumlah sel hepatosit nekrosis tikus putih jantan kondisihiperglikemik yang diberi dosis ekstrak etanol buah mengkudu 100 mg/ kgBB/hari adalah sebesar 30.64 sel, sedangkan jumlah sel hepatosit nekrosis tikusputih jantan kondisi hiperglikemik yang diberi dosis ekstrak etanol buahmengkudu 150 mg/ kgBB/ hari adalah sebesar 21.24 sel. Ektrak buah morindaterbukti dapat menurunkan jumlah sel hepatosit yang nekrosis pada hewancoba hiperglikemik.
Perbandingan Pengaruh Paparan Asap Rokok Konvensional, Nikotin Vape, dan Pemberian Ekstrak Daun Tembakau Secara Inhalasi Terhadap Volume Otak Rattus norvegicus
Authors: Dzaky Rafi Daffa , Sudibjo Sudibjo
Published: December 2022

Menurut WHO pada tahun 2016 terdapat 47 juta atau 5% dari orang tua di dunia yang menderita demensia. Demensia tersering adalah penyakit Alzheimer, dengan kerusakan khas pada sel neuron. Rokok memberikan setengah sumbangsih dalam menyebabkan penurunan volume otak, namun bahan nikotin yang ada dalam tembakau ternyata memiliki efek neuroprotektif. Tujuan melakukan penelitian ini untuk mengetahui perubahan volume otak Rattus norvegicus akibat paparan asap rokok konvensional, nikotin vape, dan pemberian ekstrak daun tembakau yang diberikan secara inhalasi. Ada lime kelompok perlakuan yaitu KN (kelompok kontrol negatif, tidak diberi perlakuan), RK2 (kelompok paparan asap rokok 2 batang rokok perhari selama 2 minggu), RK1 (kelompok dengan pemberian rokok 2 batang perhari selama satu minggu setelah itu diganti dengan pemberian ekstrak daun tembakau 3,78 mg/kgBB selama 1 minggu), NT (kelompok dengan pemberian ekstrak daun tembakau 3,78 mg/kgBB selama 2 minggu), dan NV (kelompok dengan pemberian nikotin vape 3,78 mg/kgBB selama 2 minggu). Pengukuran volume otak dilakukan dengan metode liquid displacement. Hasil rata-rata volume otak terkecil ditemukan pada kelompom RK2 (2,2 ml), kemudian diikuti kelompom NT dan RK1 (2,6 ml), sedangkan volume otak terbesar ditemukan pada kelompok KN dan NV (2,8 ml). Meskipun demikian perbedaan volume otak tersebut tidak signifikan secara statistik. Penelitian selanjutnya diharapkan melakukan pemeriksaan yang lebih lanjut dan perlakuan hewan coba dilakukan lebih lama sehingga perubahan yang ada bisa nampak lebih jelas.
Profil Kesehatan Pelajar Sekolah Dasar di Kecamatan Bambanglipuro, Kabupaten Bantul, DIY
Authors: Suryanegara I Gusti Bagus , Sigilipoe Mitra Andini , Nugroho Daniel Chriswinanto Adityo , Widagdo The Maria Meiwati
Published: December 2022

The World Health Organization (WHO) reported the prevalence of underweight in children in the world was around 14.3% with the number of underweight children thinness as many as 95.2 million in 2015. One of the main goals of national development is to improve the quality of human resources. School-age children need good nutrition to support learning activities at school. This study aims to determine the health profile of students in grades one through six elementary schools in Bambanglipuro District, Bantul Regency, Special Region of Yogyakarta. This research is a descriptive study using secondary data. The inclusion criteria were elementary school students in Bambanglipuro District from grade one to grade six. The exclusion criteria were students who did not have complete health records. All data was analyzed by Microsoft excel. The total number of respondents in this study was 2,562 people. From the results of the study, the percentage of BMI in the normal category for male students was 52% while the female was 48%. The number of students with a BMI in the obese category was found to be a total of 12 (0.5%) students, divided into 5 male students and 7 female students. In the "thin" category found a total of 6 (0.2%) students consisting of 2 men and 4 women. In the "Obesity" category, a total of 2 (0.1%) female students were found. The percentage of visual acuity in the normal category for male students is 52% while the female is 48%. The percentage of nearsightedness in students in the nearsighted category is 0.2%, consisting of 3 male students while 2 female students. The percentage of dental caries for male students is 80% while the female is 79.2%. The immunization status of elementary school students in Bambanglipuro District is complete or 100% of these students have been immunized properly. The nutritional status of elementary school students in Bambanglipuro Subdistrict is in the normal category, for immunization status, all SD Bambanglipuro students are in the complete category.
Tinjauan Sistematik: Epidemiologi Hepatitis A pada Anak di Indonesia
Authors: Miranda Stefani , Adiwinoto Ronald Pratama
Published: December 2022

Sebanyak 650 kasus probabel hepatitis akut dengan etiologi yang tidak diketahui pada anak-anak telah dilaporkan ke Badan Kesehatan Dunia dari 33 negara antara tanggal 5 April hingga 26 Mei 2022. Hepatitis A adalah penyebab paling umum dari hepatitis menular pada pasien anak. Tinjauan sistematis ini disusun untuk memberikan gambaran yang komprehensif tentang epidemiologi hepatitis A pada anak di Indonesia. Metode penelitian adalah tinjauan sistematis literatur dari database Google Scholar, ProQuest, Pubmed, ScienceDirect dan Cochrane. Literatur yang ditemukan sebanyak 390 artikel dan hanya 16 artikel yang dapat ditelaah secara sistematis yang lolos algoritma PRISMA (Preferred Reporting Items for Syatematic Reviews and Meta-Analyses) yang digunakan dalam kajian sistematik ini. Dari tinjauan sistematis ini dapat disimpulkan bahwa hepatitis A pada anak Indonesia terbanyak pada anak laki-laki berusia 11-17 tahun dengan kebiasaan cuci tangan tanpa sabun di Provinsi Jawa Timur.
Characteristics of Avicennia lanata (Ridley) Species for mangrove restoration on the coast of North Gorontalo
Authors: Kasim Faizal
Published: December 2022

Research on the rare mangrove Avicennia lanata (Ridley) is based on the habitat affinity of this species on the coast of North Gorontalo observed during 2017-2019. The current search was carried out in geographically isolated areas (land and islands) using a combination of tracking and Point Centered Quarter (PCQ) techniques to observe the substrate condition and elevation of the mangrove patch habitat, as well as to observe the morpho-anatomical character of the stand. The results showed that the habitat affinity of A. lanata species in North Gorontalo covers a wide range of substrate types, including mud, sandy mud, sand, muddy sand, and sandy and muddy soil on land with an elevation of 5.11–6.57 MDPL. The morpho-anatomical character as a distinguishing feature of A. lanata species from other Avicennia species found in leaves, stems, and fruit, could only be observed clearly in individual stands and trees. This study recommends restoration/monitoring of mangrove species A. lanata (Ridley) with a mixed-species restoration approach and community-based co-planting in a long-term mangrove restoration program in the coastal area of North Gorontalo.
PENGARUH CITRA MEREK, MEDIA SOSIAL INSTAGRAM, DAN KERAGAMAN PRODUK PADA ELECTRONIC WORD OF MOUNTH MELALUI KEPUTUSAN PEMBELIAN
Authors: Putri Tyas Fitria , Tuti Meylani
Published: December 2022

This study aimed to analyze the effect of brand image, Instagram social media, and product diversity on E-WOM through purchasing decisions. The sampling technique used was accidental sampling, which was consumers who bought the KIT SC Johnson product with a total of 200 people. The analysis method was carried out by Structural Equation Modeling (SEM) using SmartPLS. The results showed that brand image had a direct influence on purchasing decisions but did not have a direct influence on E-WOM. Instagram social media had a direct influence on both purchasing decisions and E-WOM. Likewise, product diversity had a direct influence on purchasing decisions and E-WOM. Penelitian ini bertujuan untuk menganalisis pengaruh citra merek, media sosial Instagram dan keragaman produk pada E-WOM melalui keputusan pembelian. Teknik sampling yang digunakan adalah accidental sampling, yaitu konsumen yang membeli produk KIT SC Johnsons dengan jumlah sebanyak 200 orang. Metode analisis dilakukan dengan Structural Equation Modeling (SEM) menggunakan SmartPLS. Hasil menunjukkan bahwa citra merek memiliki  pengaruh  langsung  pada  keputusan  pembelian  namun  tidak  memiliki  pengaruh langsung pada E-WOM. Media sosial Instagram memiliki pengaruh langsung baik pada keputusan  pembelian  maupun  E-WOM.  Demikian  halnya  keragaman  produk  memiliki  pengaruh langsung pada keputusan pembelian dan E-WOM.
PENGARUH PRODUCT QUALITY PADA ENVIRONMENT FRIENDLY MELALUI KEPUTUSAN PEMBELIAN DAN WORD OF MOUTH
Authors: Dewi Anggi Kusuma , Tuti Meylani
Published: December 2022

The purpose of this study was to determine the effect of product quality on an environment friendly through purchasing decisions and word of mouth at Union Kelapa Gading Restaurant. The population in this study were consumers who had made purchases more than twice and the sampling technique used was accidental sampling. The total sample was 226 respondents. The data analysis method in this study used the Structural Equation Model. This study used quantitative analysis that adopted Partial Least Square (PLS) 3.0. The results of this study, among others, that product quality has a positive and significant effect on purcha sing decisions, and word of mouth. Purchasing decisions had a positive and significant effect on  word  of  mouth  promotion.  However,  product  quality  did  not  have  a  positive  effect  on environmental friendliness.  Tujuan  dari  penelitian  ini  adalah  untuk  mengetahui  pengaruh  product  quality  pada friendly enfironment melalui keputusan pembelian dan word of mouth pada Restoran Union Kelapa Gading. Populasi dalam penelitian ini adalah konsumen yang sudah melakukan pembelian lebih dari dua kali dan teknik sampling yang digunakan adalah accidental sampling didapatkan jumlah sample sebanyak 226 responden. Metode analisis data dalam penelitian ini menggunakan Structural Equation Model dengan Penelitian ini menggunakan analisis kuantitatif yang mengadopsi Partial Least Square (PLS) 3.0. Hasil penelitian ini antara lain, bahwa product quality berpengaruh positif dan signifikan pada keputusan pembelian, dan word of mouth. Keputusan pembelian berpengaruh positif dan signifikan pada word of mouth. Namun product quality tidak berpengaruh positif pada environment friendly.
MINAT INVESTASI CRYPTOCURRENCY: ANALISIS GAYA HIDUP, KEMAJUAN TEKNOLOGI, DAN KONTEN INVESTASI DI TIKTOK
Authors: Rosalia Liza , Hartono Bambang Dwi
Published: December 2022

Technological developments are in line with economic developments based on digital technology. One of them is the emergence of financial technology which has now become a daily life for us, especially the millennial generation. This research was quantitative research that aimed to analyze interest in cryptocurrency invest­ment based on the influence of mil­lennial lifestyles, technological advances, and investment content on TikTok. This study used primary data with research instru­ments in the form of questionnaires and used path analysis to test the research hypothesis. The sampling method was carried out in the Arzanocrypto community with as many as 100 samples using the voluntary response sampling method, in which the samples were individuals who voluntarily took part in the research. The results of the study showed that the millennial lifestyle variable had no significant effect on interest in cryptocurrency investment, but had an effect on investment content on TikTok. The variable technological progress had a significant effect on interest in cryptocurrency investment but had no significant effect on investment content on TikTok. The investment content on TikTok had a significant effect on interest in cryptocurrency investment.    Perkembangan teknologi sejalan dengan perkembangan ekonomi yang berbasis teknologi digital. Salah satunya dengan muncul financial technology yang kini sudah menjadi keseharian bagi kita terutama generasi milenial. Penelitian ini adalah penelitian kuantitatif yang bertujuan untuk menganalisis minat investasi cryptocur­rency berdasarkan pengaruh ga­ya hidup milenial, kemajuan teknologi, dan konten investasi di TikTok. Penelitian ini meng­gunakan data primer dengan instrumen penelitian berupa kuesioner dan menggunakan anali­sis jalur untuk menguji hipotesis penelitian. Metode pengambilan sampel dilakukan pada ko­mu­nitas Arzanocrypto sebanyak 100 sampel dengan metode pengambilan sampel voluntary response sampling, yang mana sampel merupakan individu yang secara sukarela menjadi bagian dalam penelitian. Hasil penelitian menunjukkan bahwa variabel gaya hidup milenial tidak berpengaruh signifikan pada minat investasi cryptocurrency, namun berpengaruh pada konten investasi di TikTok. Variabel kemajuan teknologi ber­pengaruh signifikan pada minat investasi cryptocurrency, namun tidak berpengaruh signifikan pada konten investasi di Tik­Tok. Konten investasi di TikTok berpengaruh signifikan pada minat inves­tasi cryptocurrency.
Nutritional composition of black soldier fly (Hermetia illucens) reared on chicken waste meal, fruit & vegetable waste, and their mixture
Authors: Yandi I. , Öztürk R.Ç. , Kocabas M. , Kurtoglu I.Z. , Altinok I.
Published: December 2022

Fruits and vegetables are wasted in huge amounts and nearly 30% of all produced food is never consumed which leads to many economic and environmental issues. Similarly, the poultry industry generates a huge volume of waste. This refuse is reported to have high nutritional value and could be used as ingredients in the feed industry. Black soldier flies,Hermetia illucens, are potentially capable of converting different organic wastes into protein-rich biomass and considered as a viable alternative protein source to partially substitute fish meal used in aquafeeds, thereby contributing to the sustainability of aquaculture. In this study, the effect of two different organic waste substrates and their mixture, namely chicken waste meal (C), fruit & vegetable waste (FV), and a combination (1:9) of chicken waste meal and fruit & vegetable waste (M) on the nutritional content of black soldier fly prepupae (BSFP) was investigated. Significant differences were observed in energy content and proximate composition of the substrates which significantly altered the energy content and nutritional composition of the BSFP. BSFP reared on FV were low in crude protein, crude lipid and high in crude carbohydrate compared to BSFP reared on C and M. The amino acid contents of BSFP were characterised by high levels of lysine, leucine, and valine. Significant differences were detected between BSFP groups in terms of amino acid content. The fatty acid composition of the BSFP were dominated by the saturated fatty acids (SFA) ranging between 41.8±0.10% (M) and 67.11±0.08% (C). M-fed BSFP had significantly higher SFA, monosaturated fatty acid (MUFA), and polyunsaturated fatty acid (PUFA) compositions than C- and FV-fed BSFP. M-fed BSFP had a high C18:1n9 (17.01±0.02%), C16:0 (17.02±0.09%), C18:2n-6 (14.63±0.02%), and C12:0 (15.19%) fatty acid composition. The fatty acid profile of the C-fed BSFP was characterised by high levels of C14:0 (28.16±0.11%), C12:0 (25.79±0.09%), and C18:1n-9 (13.41±0.03%), whereas FV-fed BSFP was characterised by high levels of C16:0 (19.33±0.08%), C12:0 (16.64±0.18%), and C18:1n-9 (12.51±0.04%). Our results demonstrated that chicken waste meal, fruit & vegetables waste, and their mixture can be used to feed BSFP for sustainable production. However, M-fed BSFP could be used to partially substitute fish meal in carnivorous fish feeds for having a substantially greater nutritional value than BSFP reared on other wastes and for its similarity to fish meal in terms of amino acid content.
Effects of soybean meal replacement byHermetia illucens larvae meal on growth performance, meat quality and gastrointestinal health in broilers
Authors: Machado M. , Catarino J. , Almeida J. , Lopes I. , Alvarado A. , Matos R. , Ribeiro T. , Faísca P. , Moreira O. , Murta D.
Published: December 2022

The growing demand for broilers production is related to environmental and economic impacts worldwide, increasing the urgency to find alternative feed ingredients. Recent studies indicated the productive potential of some insect species, which may serve as a protein and lipid source for animal feeding, as the case of black soldier fly (BSF) larvae (Hermetia illucens). This study aimed at assessing the effects of dietary replacement of soybean meal by BSF larvae meal in broiler diets, in growth parameters, liver and intestinal tract morphology, carcass and meat quality. Forty-eight 1-day old chicks (Ross 308) were randomly assigned to one of four feeding regimes, which consisted of a basal diet in which soybean meal was replaced BSF larvae meal, at levels of 0% (Hi0), 25% (Hi25), 50% (Hi50) and 75% (Hi75). The animals’ excreta were collected and registered daily, and half the animals were slaughtered at 28 days of age. The liver, caecum and other portions of the intestines were analysed, and the intestinal tract was collected for histopathological analysis. BSF larvae meal did not affect carcass weight, but it resulted in a lower weight of the right breast of birds when fed with a 75% inclusion level (P=0.049). In addition, all growth parameters, general meat quality and excreta production were similar among treatments, while excreta characteristics were significantly different (P<0.05). Dietary BSF meal resulted in lower liver weight (P=0.03) in comparison to the control. No histopathological lesions were found in the gastrointestinal tract and morphometric traits were similar among treatments. It was concluded that the dietary inclusion of BSF larvae meal for broilers did not significantly affect the animals’ growth and gut health. This alternative feed ingredient can be used as a more sustainable option for broilers at up to 75% of soybean meal replacement.
Lipid metabolism, fatty acid composition and meat quality in broilers supplemented with increasing levels of defrosted black soldier fly larvae
Authors: Seyedalmoosavi M.M. , Dannenberger D. , Pfuhl R. , Görs S. , Mielenz M. , Maak S. , Wolf P. , Daş G. , Metges C.C.
Published: December 2022

A feeding experiment was conducted to investigate the impact of feeding defrosted whole black soldier fly larvae (BSFL) to broilers in increasing levels in the ration on blood metabolites, carcass characteristics (CC) and on changes in fatty acid (FA) composition in plasma, muscle and abdominal fat. Day-old chicks (Ross-308; n=252) were assigned to one of four groups each with 6 replicate pens (10-11 birds/pen). The birds were fed either a demand-oriented age-specific control (CON) diet and had no access to BSFL, or fed CON plus BSFL at 10% (L10), 20% (L20) or 30% (L30) of CON feed intake. At weeks (wk) 4 and 6, birds (2 per pen) were slaughtered to collect blood, breast muscle, and abdominal fat samples and to determine CC. Plasma triglyceride concentrations increased in a dose dependent manner with increasing levels of whole BSFL compared with CON (P<0.05). The L30 and L20 had higher plasma non-esterified FA concentrations than CON (P<0.05). There were no differences in slaughter weight and CC between groups (P>0.05). Broilers fed 30% BSFL had the highest saturated FA proportion in plasma, muscle and abdominal fat and the lowest monounsaturated FA proportion in abdominal fat tissue (P<0.05). The levels of total polyunsaturated FA in plasma and abdominal fat were lower in L30 than in CON (P<0.05). In plasma, muscle and abdominal fat, the proportion of conjugated linoleic acid (isomer C18:2cis-9, trans-11) was highest in L30 followed by L20 and L10 compared with CON (P<0.05). Overall, whole BSFL could be included in broiler diets up to 20% to promote sustainability in broiler farming without adverse effects on slaughter weight, meat quality and FA compositions, whereas, the highest inclusion level (i.e. 30%) of whole BSFL in the daily ration was associated with altered FA composition in plasma, fat and meat.
Existence results for a coupled system of $ (k, \varphi) $-Hilfer fractional differential equations with nonlocal integro-multi-point boundary conditions
Authors: Kamsrisuk Nattapong , Ntouyas Sotiris K. , Ahmad Bashir , Samadi Ayub , Tariboon Jessada
Published: December 2022

In this paper, we investigate the existence and uniqueness of solutions to a nonlinear coupled systems of $ (k, \varphi) $-Hilfer fractional differential equations supplemented with nonlocal integro-multi-point boundary conditions. We make use of the Banach contraction mapping principle to obtain the uniqueness result, while the existence results are proved with the aid of Krasnosel'ski${\rm{\mathord{\buildrel{\lower3pt\hbox{$\scriptscriptstyle\smile$}} \over i} }} $'s fixed point theorem and Leray-Schauder alternative for the given problem. Examples demonstrating the application of the abstract results are also presented. Our results are of quite general nature and specialize in several new results for appropriate values of the parameters $ \beta_1, $ $ \beta_2, $ and the function $ \varphi $ involved in the problem at hand.
Identification of immune subtypes of melanoma based on single-cell and bulk RNA sequencing data
Authors: Guo Linqian , Meng Qingrong , Lin Wenqi , Weng Kaiyuan
Published: December 2022

The tumor microenvironment plays a crucial role in melanoma. In this study, the abundance of immune cells in melanoma samples was assessed and analyzed using single sample gene set enrichment analysis (ssGSEA), and the predictive value of immune cells was assessed using univariate COX regression analysis. The Least Absolute Shrinkage and Selection Operator (LASSO)-Cox regression analysis was applied to construct an immune cell risk score (ICRS) model with a high predictive value for identifying the immune profile of melanoma patients. The pathway enrichment between the different ICRS groups was also elucidated. Next, five hub genes for diagnosing the prognosis of melanoma were screened by two machine learning algorithms, LASSO and random forest. The distribution of hub genes in immune cells was analyzed on account of Single-cell RNA sequencing (scRNA-seq), and the interaction between genes and immune cells was elucidated by cellular communication. Ultimately, the ICRS model on account of two types of immune cells (Activated CD8 T cell and Immature B cell) was constructed and validated, which can determine melanoma prognosis. In addition, five hub genes were identified as potential therapeutic targets affecting the prognosis of melanoma patients.
Characterizing emerging features in cell dynamics using topological data analysis methods
Authors: Dawson Madeleine , Dudley Carson , Omoma Sasamon , Tung Hwai-Ray , Ciocanel Maria-Veronica
Published: December 2022

Filament-motor interactions inside cells play essential roles in many developmental as well as other biological processes. For instance, actin-myosin interactions drive the emergence or closure of ring channel structures during wound healing or dorsal closure. These dynamic protein interactions and the resulting protein organization lead to rich time-series data generated by using fluorescence imaging experiments or by simulating realistic stochastic models. We propose methods based on topological data analysis to track topological features through time in cell biology data consisting of point clouds or binary images. The framework proposed here is based on computing the persistent homology of the data at each time point and on connecting topological features through time using established distance metrics between topological summaries. The methods retain aspects of monomer identity when analyzing significant features in filamentous structure data, and capture the overall closure dynamics when assessing the organization of multiple ring structures through time. Using applications of these techniques to experimental data, we show that the proposed methods can describe features of the emergent dynamics and quantitatively distinguish between control and perturbation experiments.
Dynamics of a stochastic hepatitis B virus transmission model with media coverage and a case study of China
Authors: Ma Jiying , Ma Shasha
Published: December 2022

Hepatitis B virus (HBV) infection is a global public health problem and there are $ 257 $ million people living with chronic HBV infection throughout the world. In this paper, we investigate the dynamics of a stochastic HBV transmission model with media coverage and saturated incidence rate. Firstly, we prove the existence and uniqueness of positive solution for the stochastic model. Then the condition on the extinction of HBV infection is obtained, which implies that media coverage helps to control the disease spread and the noise intensities on the acute and chronic HBV infection play a key role in disease eradication. Furthermore, we verify that the system has a unique stationary distribution under certain conditions, and the disease will prevail from the biological perspective. Numerical simulations are conducted to illustrate our theoretical results intuitively. As a case study, we fit our model to the available hepatitis B data of mainland China from 2005 to 2021.
El Instituto de Física de La Plata en la primera posguerra: la transmisión calificada de las ciencias a la juventud
Authors: Gangui Alejandro , Ortiz Eduardo L.
Published: December 2022

En la primera década del siglo XX la Universidad Nacional de La Plata, fundada en 1905, creó un moderno y bien dotado Instituto de Física. En este trabajo estudiamos el impacto que esa iniciativa tuvo sobre la modernización de la enseñanza de la física a nivel medio y universitario en la Argentina. Nos concentramos en dos de los egresados más representativos del Instituto de aquellos años, Ramón G. Loyarte y Enrique Loedel Palumbo, y analizamos sus trabajos pedagógicos más importantes y la recepción pública que tuvieron. Estos trabajos son una muestra del aporte del Instituto de Física a la elevación del nivel de educación nacional en el campo de las ciencias físicas en la primera mitad del siglo XX.
Élie Metchnikoff, ¿el primer transhumanista moderno?
Authors: Espericueta José Luis
Published: December 2022

Élie Metchnikoff, ganador del Premio Nobel de medicina en 1908 y sucesor de Pasteur, fue sin duda un hombre intelectualmente muy fértil. Sus investigaciones pioneras en una gran variedad de áreas científicas, como la gerontología, la tanatología y la inmunología modernas, constatan lo anterior. Pero ¿es posible considerarlo, además, como el primer transhumanista moderno? El objetivo de este artículo es estudiar la pertinencia de atribuirle tal título. Para ello analizaremos su vida y obra desde un punto de vista transhumanista. En un primer momento examinaremos cómo Metchnikoff concebía la naturaleza de nuestra especie; posteriormente, esbozaremos el modo en que podría presentarse su proyecto de mejoramiento humano; y, por último, expondremos su interesante concepción de la mortalidad humana. Existen dos alicientes para esta investigación: rescatar para los lectores hispanohablantes el pensamiento de Metchnikoff bajo esta novedosa perspectiva, y la necesidad de observar críticamente cualquier propuesta que aspire a superar los límites de la humanidad.
Euclides en la práctica: un tratado sobre el fundamento y la construcción de pantómetras en el siglo XVII español
Authors: Ausejo Elena
Published: December 2022

Apenas iniciado el siglo XVII, un matemático de la solvencia, consideración y difusión del jesuita Christoph Clavius (1537-1612) comenzó su Geometria practica (Maguncia, 1606) con dos capítulos dedicados a la construcción y uso de dos instrumentos matemáticos. Quedó así incorporado al acervo matemático académico, además del cuadrante común, un instrumento para dividir fácilmente cualquier recta en cualquier número de partes iguales o proporcionales que denominó Instrumentum Partium -posteriormente pantómetra-. Este trabajo aborda un inédito manuscrito anónimo español del siglo XVII sobre construcción de pantómetras, probablemente de uso docente, desde el punto de vista de su contribución al desarrollo de la aritmetización de la geometría mediante la consideración numérica de las magnitudes continuas en términos de cantidad. El texto fundamenta la operatividad instrumental de las pantómetras -superior al cálculo aritmético en cuanto a economía de tiempo y errores- en el rigor geométrico clásico de los Elementos de Euclides, especialmente el libro VI. No obstante, aborda el problema de la inconmensurabilidad desde un punto de vista práctico, en términos de aproximaciones con un margen de error sensorialmente imperceptible e irrelevante a efectos de aplicación práctica.
Rodríguez Arias y Pons Balmes: Una década de malarioterapia en Barcelona (1927-1936)
Authors: Villasante Olga
Published: December 2022

La Parálisis General Progresiva (PGP), último estadio de la neurosífilis, presentaba un pronóstico nefasto en las primeras décadas del siglo XX -una mortalidad superior al 85 % a los 2 años de la hospitalización-, a pesar de los tratamientos disponibles (bromuros, compuesto de mercurio y derivados arsenicales). La malarioterapia (paludismo experimental), propuesta por el médico austriaco Wagner von Jauregg, se propagó rápidamente al generar grandes expectativas de curación para los paralíticos generales. En España, Gonzalo Rodríguez Lafora comenzó a utilizar dicha técnica a partir de 1924, pero su utilización fue muy desigual en las diferentes áreas geográficas e instituciones psiquiátricas. Si bien la práctica de la malarioterapia en Madrid ya ha sido objeto de estudio, existe un vacío historiográfico sobre el tratamiento con paludismo experimental en Cataluña, a pesar de contar con las series de casos publicadas más extensas. El objetivo de este artículo es conocer la experiencia con la malarioterapia de Belarmino Rodríguez Arias y José Pons Balmes que trabajaron, principalmente, en el Servicio Municipal Psiquiátrico de Barcelona (Asilo del Parque) y el Manicomio de San Boi, pero también con pacientes del Hospital Clínico (Provincial) y de clínicas particulares.
Ciencia en el imperio español del siglo XVII: Fray Ignacio Muñoz y sus manifiestos geométricos
Authors: Lluis i Ginovart Josep , Lluis-Teruel Cinta
Published: December 2022

La investigación describe alguno de los conocimientos científicos que ayudan a construir la trayectoria vital del dominico Ignacio Muñoz Pinciano, en sus estancias en Filipinas, Nueva España y en la Corte de Felipe IV. Especial interés reviste en las fuentes directas de sus conocimientos científicos de base geométrica que han llegado a nuestros días, y cuya utilización por parte del dominico se adaptan a las necesidades del mantenimiento de imperio español en el siglo XVII. La documentación manuscrita y representaciones gráficas del dominico aportan numerosas referencias sobre su saber geométrico que nos permiten comprender la base de su conocimiento científico y su singular aportación recogido bajo el título de “manifiestos geométricos”.
Enseñando a ser madres: la educación de mujer a mujer en la Valencia del primer tercio del siglo XX
Authors: Galiana-Sánchez María Eugenia , Martínez-Zapata Rocío
Published: December 2022

A comienzos del siglo XX, las altas cifras de morbi-mortalidad infantil generaron una preocupación creciente del movimiento Higienista, que articuló una respuesta sanitaria compleja, que combinó, entre otras medidas, la puesta en marcha de nuevas instituciones dedicadas a la puericultura y la utilización de nuevas estrategias como la educación para la salud y la divulgación sanitaria. En este contexto, las madres, consideradas causa y solución del problema, fueron el objetivo de dichas estrategias sanitarias dirigidas a mejorar las prácticas de los cuidados infantiles. Las profesionales femeninas próximas a las madres y a los niños, sobre todo maestras y enfermeras, se convirtieron en agentes de promoción de la salud, involucrando a las mujeres en las mejoras de la salud familiar. En la presente investigación, se presenta el estudio de caso de Valencia, como ejemplo de la emergencia de una acción profesional femenina que, a pesar de su visibilidad limitada, fue clave en la mejora de la salud infantil.
En los márgenes de la normalidad: los niños varones en la Revista de Criminología, Psiquiatría y Medicina Legal (1914-1927)
Authors: Benítez Sebastián M.
Published: December 2022

Desde una perspectiva histórico crítica, este trabajo analiza diversos artículos de la Revista de Criminología, Psiquiatría y Medicina Legal publicados entre 1914 y 1927 que se han ocupado de clasificar y establecer un diagnóstico médico legal infantil en la Argentina. A su vez, se articula la perspectiva histórica con un enfoque de género, en tanto se plantean las especificidades presentes para niños varones en tales clasificaciones e intervenciones por parte de los saberes psi de la época. La producción de conocimiento sobre los criminales varones, se piensa como respuesta a múltiples problemas sociales como la delincuencia juvenil, la deambulación en las calles y las posibilidades de una rehabilitación/reeducación temprana. Se recuperan las ideas naturalistas y evolucionistas que funcionaron como una matriz de análisis e intervención en el proceso de difusión de los saberes expertos en la Argentina en el periodo delimitado por este artículo.
Recent research on portland cement in Russia
Authors: Anónimo
Published: December 2022

No disponible
Drying sizing system
Authors: Anónimo
Published: December 2022

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New type gypsum cement
Authors: Anónimo
Published: December 2022

No disponible
Ceramic glazes and enamels
Authors: Anónimo
Published: December 2022

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Verbundmüale oder sichtermühle rei Zementuermahlung
Authors: Anónimo
Published: December 2022

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Trabajos publicados con motivo del centenario del nacimiento de Le Chatelier
Authors: Varios autores
Published: December 2022

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Chemische untersuchung von baukalken
Authors: Engelhardt
Published: December 2022

No disponible
Particle size analyzer
Authors: Anónimo
Published: December 2022

No disponible
Regulation du tirase
Authors: Anónimo
Published: December 2022

No disponible
British standard vicat apparatus
Authors: Anónimo
Published: December 2022

No disponible
Foam glass
Authors: Kitaigorodskii
Published: December 2022

No disponible