bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengkayaan CaCl2 pada Nutrisi Hidroponik untuk Meningkatkan Hasil Tanaman Kailan (Brassica oleraceae L.)
Authors: Abror M. , Miftakhurrohmat Agus , Arifin Saiful
Published: September 2023

One highly sought-after vegetable is Kalian (Brassica oleraceae L.), valued for its exceptional nutritional content. The cultivation of kalian demands specialized attention. Hydroponic cultivation utilizing Calcium Chloride plays a pivotal role in fostering robust plant growth and resilience, particularly in urban settings. Calcium serves a multifaceted role: safeguarding against pests, enhancing fruit quality, and functioning as an antioxidant during storage. This research was conducted between October 2022 and February 2023, employing a single-factor Randomized Block Design (RBD) that was replicated three times. The study encompassed the following treatments: (i) Control with 0 ppm CaCl2, (ii) 550 ppm CaCl2 (P1), (iii) 650 ppm CaCl2 (P2), and (iv) 750 ppm CaCl2 (P3). The observed parameters encompassed plant height, leaf count, leaf area, fresh weight, and dry weight. The data underwent analysis via analysis of variance (ANOVA), followed by the Honest Significant Difference (HSD) test at the 5% significance level. The outcomes of the study unveiled substantial and statistically significant responses at the 7th, 14th, 21st, and 28th days after planting (HST) concerning the leaf count and wet weight variables. However, no statistically significant response was observed in relation to root length and leaf area measurements.

 

Keywords: CaCl2, kailan, hydroponics, Ab Mix nutrition
Assessing the biomass yield and nitrogen fixation of Lupinus angustifolius varieties as green manure in Jalisco, Mexico
Authors: NATERA Juan Francisco Zamora , HERNÁNDEZ Isidro Zapata , JİMÉNEZ Carlos Ernesto Aguilar , AGUİLAR Franklin B. Martínez , GALDÁMEZ José Galdámez
Published: September 2023

Limited information is available in Mexico regarding the use of Lupinus angustifolius L. as a green manure. This study aimed to assess the effectiveness of six Lupinus angustifolius varieties as green manure in terms of above-ground biomass production, expressed as dry matter (DM), and total nitrogen (N) accumulation at successive harvest dates. Additionally, the study aimed to estimate N2 fixation 110 days after sowing (DAS). The varieties Haags Blaue, Boregine, Borlu, Probor, Sonate, and Boruta were sown during the winter season of 2018-2019 using a randomized block factorial design. The N difference method was employed to estimate N2 fixation, with wheat serving as the reference crop. Data on above-ground biomass production, N concentration, and total N accumulation were recorded at different harvest times: 80, 95, and 110 DAS. The biomass yield of all varieties significantly increased from the first to the last harvest, with the highest yield observed at the final harvest (ranging from 7,632 to 10,200 kg ha-1). The highest total N accumulation from biomass was recorded at the last harvest. On average, the Borlu, Boregine, Haags Blaue, and Boruta varieties accumulated 195.4 kg ha-1 of total N (ranging from 195.6 to 221.2 kg ha-1). The proportion of N derived from the atmosphere (%Ndfa) through N2 fixation averaged 80.09% (ranging from 72% to 93%), resulting in an average N fixation of 160 kg ha-1 (ranging from 106 to 185 kg ha-1) in above-ground biomass. All six varieties demonstrated potential as green manure, considering their above-ground biomass production, total N accumulation, and ability to fix N2.
The effect of using quality rice seed varieties on rice cultivation activities
Authors: Zainol Rosmiza Mohd , Ashri Noor Anis , Rosmi Mohd Nor Mohd , Ibrahim Mohamad Syahrul Nizam
Published: September 2023

Farmers’ use of subpar rice seed has a substantial impact on the production of rice harvest since it may result in the spread of disease and pests, the incapacity of crops to adapt to climate change, poor soil quality, and bad plant structure. In this context, the situation mentioned earlier has a detrimental impact on farmers' financial earnings as well as an escalation in expenses related to input procurement and crop management, thereby influencing the overall welfare of farmers. Therefore, this study was carried out to identify the selection of rice seed varieties within five seasons of cultivation among farmers and the effect of using quality rice seed varieties on rice cultivation activities. The study employed the descriptive quantitative research approach, and the survey instruments were administered to a sample of 95 rice farmers residing in the AFO F-IV Sungai Limau MADA area, Yan, Kedah. The results of the study found that most respondents used the MR297 rice seed variety for each planting season due to their confidence in the agronomic characteristics of the variety. The findings also indicate the impact of using quality varieties recommended by agricultural agencies. These include increased production, crop tolerance to weather factors, higher resilience, and resistance to disease attacks. This situation has real impacts, including increased farmers' income, lower costs of purchasing production inputs, and farmers’ well-being. This has several consequences for technological advancements in creating high-quality rice seed varieties and their usage by farmers, which can boost rice output, the economy, and the well-being of the farmers, in addition to assuring the security of the nation's rice supplies.
Primary School Teachers' Views on Teaching Critical Thinking
Authors: Özelçi Serap Yılmaz
Published: September 2023

The main purpose of the study is to examine the views of classroom teachers on the teaching of critical thinking. It is a qualitative study. The data are collected through a semi-structured interview form. 13 classroom teachers are the study group of the research. Descriptive and content analysis is also used in the analysis of the data. According to the findings, teachers believe that critical thinking is a teachable skill and they know how important their roles are in teaching this skill. However, teachers emphasized that skill training would not be possible without family support.
An Overview of Mental Calculation Strategies and the Frequency of Their Application
Authors: Jurić Josipa , Pjanić Karmelita
Published: September 2023

The paper aims to explore mental calculation strategies and the frequency of their application in tasks. In the paper, we categorized mental calculation strategies related to four basic mathematical operations, looked at several different strategies used by students in a test containing mental calculation tasks, and presented an overview of the interview results. We also analyzed age-related differences in the number of strategies applied by participants. It was found that Mathematics in school does not always contribute to the development of and flexibility in the use of mental calculation strategies. One apparent reason is student preference for previously acquired written algorithms.
Parental Involvement in the Educational Process as a Potential Factor in Tachers’ Experience of Work Stress
Authors: Tekavc Janja , Vončina Teja
Published: September 2023

For teachers, working with parents can represent an important source of work stress. The study involved 248 Slovenian primary school teachers, who completed a questionnaire consisting of scales on perceived stress and job satisfaction and a questionnaire on cooperation with parents. The results showed that teachers are satisfied with their job, although they do associate it with high levels of stress. Among the different forms of engagement with parents, the most stressful was the presence of parents during the educational process and parent-teacher association meetings. Teachers also perceive high levels of stress when parents interfere in and control their work.
Chemical and Fatty Acids Composition of Yak Milk from Qinghai-Tibetan Plateau in Different Seasons
Authors: Hong-xin Jia , Mi-ya Su , Wen-liang Chen
Published: September 2023

Background: Yak milk is the main source of dietary protein, fat and micronutrients for Qinghai-Tibetan Plateau residents. However, few studies have focused on the seasonal variation of nutritional components in natural grazing (without supplementary feeding) yak milk. Methods:Yaks living at high altitudes (average altitude of more than 4200 metre) were selected (summer, n=18; winter, n=18; spring, n=15) to analyzed seasonal influence on chemical and fatty acids composition of yak milk. Result: Results showed that the contents of fat, protein, lactose, non-fat milk solid, vitamin A and the main fatty acids (C6:0, C12:0, C14:0, C15:0, C16:0, C17:0, C20:0, cis-9 C16:1, cis-9 C18:1, trans-9 C18:1, LA, etc.) in winter yak milk were significantly different from those in summer and spring yak milk (p less than 0.05). This suggests that chemical and fatty acids composition of yak milk were influenced by seasons.
Development of Genotypes for Foliar Disease Resistance in Mungbean [Vigna radiata (L.) Wilczek] through Recombination and Mutation Breeding
Authors: Mogali Suma , Balol Gurupad , Goudar Iramma , Bhat Sumangala
Published: September 2023

Background: Despite the best efforts for improving the greengram varieties, the yield potential of this crop remains low owing to both biotic and abiotic factors. Yield losses caused due to various diseases were estimated to be 24-67 per cent in anthracnose, 80-100 per cent in mungbean yellow mosaic virus and 40 per cent due to powdery mildew So, the use of resistant cultivars is the most effective and eco-friendly method of managing the disease. Methods: A series of field experiments spanned over seven years (2014-2021) were conducted at Main Agricultural Research Station, University of Agricultural Sciences, Dharwad, Karnataka. In the first set of experiments, the material comprised of eight varieties of greengram which were treated with 20kR gamma radiation. M1was planted in Kharif 2014 and each variety was bulk harvested. M2 was planted in summer 2014 and individual plant selection was carried out. Mutant families were advanced to the further generation in Kharif 2015 and Rabi 2015. The M2 mutants were scored for their reaction to anthracnose, cercospora leaf spot and powdery mildew diseases with respective susceptible and resistant checks. In another set of experiments aimed at developing MYMV tolerant genotypes, an investigation was carried out with 168 F2 individuals derived from crossing Vigna trilobata and DGGV2. One row infector line of DGGV-2 was raised after every three test entries to study the reaction to MYMV. Three rows of susceptible check was planted all around the border to ensure enough inoculum load. Of the 168 F2 individuals, two lines showed resistance to MYMV. They were stabilized through a series of selfing generations. Result: Evaluation of advanced breeding lines for their reaction to various foliar diseases revealed that the advanced breeding lines DGG-203, DGG-206, DGG-208, DGG-21, DGG-80, DGG-273, DGG-274, DGG-275, DGG-262, DGG-263, DGG-264, DGG-82, DGG-200, TARM-1 (C), DGG-215-5, DGG-302, DGG-152, IPM-3-2, DGG-20, DGG-73, IPM-14-10, DGG-121, DGG-250, DGG-109, DGG-96 had seed yields ranging from 9.8 g to 12.4 g and moderately resistant to both anthracnose and CLS. The breeding lines DGG-203, DGG-206, DGG-21, DGG-273, IPM-3-2 (Check), DGG-96 have recorded combined resistance to anthracnose, cercospora leaf spot and powdery mildew diseases.
Transvoluciones. Diálogos Filosóficos.
Authors: Cristancho Altuzarra José Gabriel
Published: September 2023

Este libro encontró el tiempo preciso para salir a la luz pública, justo en un momento en que nos estamos haciendo preguntas profundas por la crisis que se ha desatado a nivel mundial la pandemia del Codvid 19. Este texto es un viaje interior por el sentido de la vida, por las decisiones que tomamos y las acciones derivadas de las mismas.Con una sencillez profunda, José Gabriel Cristancho Altuzarra se planteó preguntas de investigación que tienen repercusiones educativas muy importantes: ¿cuál es el propósito de la existencia?; ¿cuál es el propósito de la vida humana? Preguntas que le exigieron un “método” de investigación coherente con las mismas. ¿Cómo investigar algo de tal profundidad? ¿Cuáles son los sujetos-objetivo de la investigación? ¿Y cuál es la escritura de una investigación de estas honduras?Las lectoras y los lectores no se encontrarán con un informe de investigación neutral y objetivista sobre la existencia humana. Se trata de una bitácora de viaje, de una investigación personal que de partida enfrenta y desmonta la respuesta que nuestras sociedades han dado a dichas cuestiones: la acumulación y la riqueza. Es una investigación que se materializa en diálogos filosóficos (una escritura propia de la antigüedad) que llevan al lector a ser partícipe del incesante preguntar y de los caminos del pensar.Del prólogo escrito por Rocío Rueda Ortiz
Teoría Habermasiana y Educación Rural Emancipadora:
Authors: Soler Rocha José Edilson
Published: September 2023

Por ser la educación un término universal que alude a una condición necesaria para el desarrollo humano, esta se convierte en un reto para el gobierno, en especial cuando se habla de educación rural.  No obstante, hay un desfase innegable entre el ser y el deber ser, que se concentra en la acción comunicativa (la interacción) de los niveles del gobierno, que ocasiona una acción instrumental (el trabajo) no encaminada hacia el desarrollo de una política pública educativa de lo rural y para lo rural.Con esta perspectiva, el lector encontrará un constructo teórico que aborda la educación rural emancipadora a través de la acción comunicativa según la teoría crítica habermasiana. El objetivo es comprender el mundo de la educación rural en Colombia considerando las cuatro acciones sociológicas propuestas por Habermas: la acción teleológica, regulada por normas, dramatúrgica y comunicativa.
Noni simplistic effect with Chicken Shank Gelatin Film on White Rat Spleen Exposed to Dexamethasone
Authors: Pratiwi Virita Rossa , Kuntana Yasmi Purnamasari , Budiono Ruly , Malini Desak Made , Kusmoro Joko
Published: September 2023

Dexamethasone is a corticosteroid drug belong to glucocorticoid group. Dexamethasone is immunosuppressant and anti-inflammatory in various inflammatory conditions. Side effects of its use can cause cell apoptosis in various organs such as the spleen. The immunosuppressant effect of dexamethasone can reduce and inhibit peripheral lymphocytes and macrophages until the death of lymphoid cells in the white pulps of the spleen. The simultaneous effect of administering chicken shank gelatin and noni has the potential to improve the structure of the spleen. This study was aimed to prove and obtain effective and safe dose of chicken shank gelatin and noni on the spleens of rats exposed to dexamethasone. The research was carried out experimentally in the laboratory with a completely randomized design (CRD). A total of 25 heads male rats were grouped into five treatments and each treatment consist of five repetitions. There was a treatment group P1 as a negative control, P2 as a positive control (dexamethasone 5 mg/kg BW), P3-P5 (dexamethasone 5 mg/kg + gelatin 1.585 mg/kg + noni simplicia 50; 112; 250 mg/kg BW). The results of the study showed an increase in the area of white pulps and a decrease in the percentage of necrotic cells in the spleen, however, it did not increase the relative weight of the spleen and serum albumin levels (P>0.05). In conclusion, the effective and safe dose for the spleen organs of rats exposed to dexamethasone is 250 mg/kg BW.
Histopatologi Lumba-Lumba Fraser (Lagenodelphis hosei) yang Terdampar di Pandeglang, Banten
Authors: Kurniasih Ratna Amalia , Prasetiawan Nanda Radhitia
Published: September 2023

Penanganan pascamati/postmortem dilakukan terhadap lumba-lumba fraser yang terdampar perairan Selat Sunda, Pandeglang, Banten. Semula lumba-lumba fraser ini ditemukan dalam kondisi hidup tetapi tidak dapat bertahan dan beberapa saat kemudian mati. Informasi mengenai kondisi lumba-lumba fraser yang terdampar di wilayah Indonesia masih sangat terbatas. Makalah ini mengulas gambaran patologi pada lumba-lumba fraser yang terdampar tunggal di Banten. Sampel organ berupa hati, paru-paru, ginjal, limpa, jantung, lambung, usus dan kulit diambil untuk pengamatan patologis makroskopis dan mikroskopis. Pada kulit lumba-lumba fraser teramati adanya lesi antropogenik. Organ hati mengalami hepatitis kronis disertai lipidosis, sedangkan ginjal mengalami kongesti, degenerasi, glomerulonefritis, fibrosis dan metaplasia. Pada paru-paru teramati mineralisasi, bronchiolitis, edema, kongesti dan hemoragi. Limpa mengalami perubahan warna dengan bercak-bercak kuning kecoklatan yang secara mikroskopis merupakan deposit pigmen. Kongesti, degenerasi dan myocarditis teramati pada jantung. Lambung terisi cairan berwarna coklat kehijauan tanpa padatan pakan maupun benda asing. Pada lambung teramati nodul parasit Pholeter gastrophilus dengan lesi spesifik gastritis fibrogranuloma dan pada usus mengalami kongesti, nekrosis dan enteritis tanpa disertai perubahan makroskopis. Lumba-lumba fraser tersebut dalam kondisi sakit sebelum terdampar dan mati.
Perbandingan Respons Penyerentakan Ovulasi Berbasis Progesteron Intravaginal pada Sapi Dara Friesian Holstein dan Persilangannya dengan Belgian Blue
Authors: Muttaqin Zultinur , Azizah Nurul , Hafid Anita , Kusumaningrum Diana Andrianita , Anggraeni Anneke , Arrazy Aqdi Faturahman , Ishak Andi Baso Lompengeng
Published: September 2023

Protokol ovulation synchronization (ovsynch) dirancang untuk dapat menyerentakkan ovulasi, sehingga inseminasi buatan (IB) dapat dilakukan secara repat waktu/fixed time pada sapi dara tanpa diperlukan deteksi estrus. Namun, efektivitas dari ovsynch berbasis progesteron intravginal melalui pengamatan dinamika ovarium pada bangsa sapi yang berbeda, Sapi Friesian Holstein (FH) dan persilangannya dengan Belgian Blue (BBxFH), belum pernah dibandingkan. Tujuan dari penelitian ini adalah untuk membandingkan respons perlakuan ovsynch pada sapi dara FH dan BBxFH. Total delapan ekor sapi dara (4 FH dan 4 BBxFH) digunakan dalam penelitian ini dan diberikan protokol ovsynch: GnRH I + Cuemate (7 hari) - PGF2α – 48 jam - GnRH II - 26 sampai 28 jam IB. Total ovulasi, diameter folikel preovulatori, diameter corpus luteum/CL, waktu ovulasi dan persentase kebuntingan dibandingkan antar bangsa sapi. Pengamatan ultrasonografi/ USG dilakukan pada h0, h7 sampai terjadi ovulasi, Ovulasi + tujuh hari setelah ovulasi (CL) dan 45 hari setelah IB (pemeriksaan kebuntingan). Total ovulasi, diameter folikel preovulatori dan diameter CL tidak berbeda nyata (P>0,05) antar bangsa sapi FH dan BBxFH (75% vs 100%; 13,6 ± 3,2 mm vs 14,9 ± 1,4 mm; dan 25,4 ± 2,5 mm vs 21,3 ± 1,6 mm, berturut-turut). Sebagai tambahan, persentase kebuntingan ditemukan lebih tinggi pada sapi BBxFH dibanding sapi FH pada diagnosis kebuntingan umur 45 hari (75% vs 50%). Protokol Ovsynch berbasis preparat progesteron efektif dalam menyerentakkan kejadian ovulasi, baik pada bangsa sapi FH dan BBxFH tanpa memengaruhi diameter folikel dominan dan CL yang dihasilkan.
Kesikli Yarı-Markov Geçiş Olasılıklarının Konvolüsyon Yardımıyla Hesaplanmasına Dayalı Çok Durumlu Bir Sağkalım Modeli ve Bir Uygulama
Authors: KAYA Fahrettin , EFE Ercan , ÜÇKARDEŞ Fatih
Published: September 2023

Bu çalışmanın amacı Kesikli yarı-Markov geçiş olasılıklarının konvolüsyon yardımıyla hesaplanmasına dayalı çok durumlu bir sağkalım modeli oluşturulması üzerinedir. Bu araştırmada, veriler, kalp nakli yapılan bireylerde koroner allogreft vaskülopati (CAV) hastalığının ilerlemesini incelemek amacıyla dört farklı seviye de tanımlanmıştır: hastalıksız (1) durum, hafif hasta (2) durumu, orta ve şiddetli hasta (3) durumu ve hastalık nedeniyle ölüm (4) durumu. İzlenen hastaların bu durumlar arasındaki geçişleri ile yarı-Markov zinciri oluşturulmuştur. Bu zincir temel alınarak, çok durumlu sağkalım modelindeki durumlar arasındaki geçiş olasılıklarını tahmin etmek için konvolüsyon yöntemi tabanlı bir hesaplama yöntemi kullanılmıştır. Bu yöntem, yarı-Markov matris-değerli olasılık geçiş fonksiyonunu (P(t)) tahmin etmek amacıyla kullanılmıştır. Tüm geçişli durumlar olan S_1 (t),S_2 (t) ve S_3 (t) sağkalım fonksiyonları ile F_1 (t),F_2 (t)ve F_3 (t) ilk geçiş süresinin dağılım fonksiyonları ve bunlara ilişkin parametrik fonksiyonlar ve diğer hazard fonksiyonları elde edilmiştir. Ayrıca, koroner allogreft vaskülopati hastalarının hastalık seviyeleri dikkate alınmadan elde edilen Kaplan-Meier sağkalım fonksiyonu olan S_KM (t) hesaplanmıştır. Zaman ilerledikçe, sağkalım fonksiyonlarının olasılık değerlerinin farklı şekillerde değiştiği sonucuna varılmıştır. Orta ve şiddetli hasta (3) durumunda sağkalım fonksiyonu hızla azalırken ortalama bekleme süresi 5.56 yıl olarak bulunmuştur. Hastalıksız (1) durumunda sağkalım fonksiyonu daha yavaş bir şekilde azalırken ortalama bekleme süresi 9 yıl olarak hesaplanmıştır. Hafif hasta (2) durumunda ise sağkalım fonksiyonu Kaplan-Meier sağkalım fonksiyonuna benzer bir şekilde azalırken ortalama bekleme süresi 7.35 yıl olarak bulunmuştur. Sonuç olarak, çok durumlu sağkalım modeli kullanılarak koroner allogreft vaskülopati hastalığının farklı seviyelerindeki sağkalım fonksiyonları, ilk geçiş sürelerinin dağılımları ve ortalama bekleme sürelerinin farklı olduğunu göstermektedir. Bu nedenle, geleneksel sağkalım analizi yerine çok durumlu sağkalım analizi, klinik değerlendirmeye daha fazla katkı sağlamakta ve daha fazla bilgiye erişim ve yorumlama olanağı sunmaktadır. Bu çalışmanın, alanda çalışan araştırmacılara yol gösterici olabileceği düşünülmektedir.
Blinking to Oscar 2023 Ceremony with Social Family Construction
Authors: PEHLİVAN Oğuzhan
Published: September 2023

Family is a socially constructed phenomenon in terms of relations dependent on kinship, friendship, or closeness. This article aims to scrutinize an example of a transnational family in the Oscar winner movie “Everything Everywhere All at Once (2022)”. The descriptive-analytic research method with a qualitative approach was applied as the research methodology in this study. Network, family discourse, and time are found as the main contributors to the formation of a family. The network is the most powerful force multiplier for resolving conflicts in family, whether it be intrinsic or extrinsic. Additionally; heterarchical relationships are less prevalent than hierarchical ones, the primary factors in the development of family habits are cultural background and prior experiences, and the social construction of families can be prevented by the use of various languages and dialects. In the end, one of the fundamental principles underlying the social architecture of the family is time.
Fontes, documentos e arquivos na fronteira entre Antropologia, História e outros saberes
Authors: Cardoso Antonio Alexandre Isidio , Tambascia Christiano Key , Nadai Larissa , Ariza Marília Bueno de Araújo , Alcântara Paulo Augusto Franco de
Published: September 2023

Nas últimas décadas, muito tem se produzido sobre as relações, fricções e tensões entre os fazeres antropológicos e historiográficos. Tal atenção tem sido ainda mais evidente diante de indagações críticas sobre os regimes e usos de  fontes, documentos e arquivos. Denominada muitas vezes por codinomes como “antropologia histórica” e/ou “história cultural”, as fronteiras que conformam Antropologia, História e sua articulação com outros saberes têm, por muitos de nós, sido intencionalmente transgredidas, borradas e esmaecidas. Este dossiê, “Fontes, documentos e arquivos na fronteira entre Antropologia, História e outros saberes” demonstra tais esforços de insubmissão e convergência a partir dos mais variados campos empíricos - documentos administrativos, “causos populares”, documentos acadêmicos, memórias orais, etc. Os artigos aqui reunidos e organizados, neste sentido, não só desafiam àquilo que restou registrado em fontes e arquivos, como também lançam luz aos esforços de produzir outros arquivos e/ou disputar as verdades neles contidas sobre um passado histórico a ser contestado e posto sob escrutínio.
Aspiration level of Secondary School Students at Abuguta Administrative Unity in Gezira State and its Relationship with some variables
Authors: الضو محمد علي محمد علي
Published: September 2023

The research aimed to identify the aspiration level of a sample of Secondary School students, Gezira State, Abuguta Administrative Unity – Sudan. and to find out any statistically significant differences between the means of the sample members due to these variables: gender and specialization. To achieve this objective, the researcher used the analytical descriptive method on a sample which consisted of (123) students who were randomly selected. The researcher adopted aspiration level questionnaire prepared by Kamilia Abdelftah (1975). The study results revealed that the level aspiration of students of the Secondary School, Gezira State, Abuguta Administrative Unit was high. There were also no significant differences in the means of students' responses due to the variable gender, and there were also significant differences in the means of students' responses due to the variable specialization for arts.
Fragility curves accounting for uncertainties in material parameters and ground motion characteristics using a data driven surrogate model
Authors: Bose Supratik , Stavridis Andreas , Anastasopoulos Panagiotis Ch. , Sett Kallol
Published: September 2023

This study uses a statistical surrogate model to develop fragility curves for an infilled reinforced concrete frame building, considering uncertainties in both material properties and ground motion parameters. The focal point of this study is a school building in Nepal damaged during the 2015 Gorkha earthquake. The school was instrumented, and its seismic response was simulated using a nonlinear numerical model. The model, developed following a recently proposed framework and extensively validated with the field data, is used in a parametric study conducted to identify the most influential material parameters (MPs). The model is then used in incremental dynamic analyses conducted to provide data for the calibration of a surrogate model. The three-staged least square statistical modeling approach is adopted to relate the influential MPs and ground motion intensity measures with important response quantities related to the peak and residual first-story drift ratios. The surrogate model is employed to generate fragility curves accounting for the two sources of uncertainty. The results indicate that accounting for uncertainties associated with the MPs can alter the fragility curves, causing a shift in the prediction of the median and dispersion of intensity measures.
Comment les volailles perçoivent et interprètent leur environnement : recherche scientifique et exemples d’applications
Authors: DEGRANDE Rachel , FERREIRA Vitor Hugo Bessa , GUESDON Vanessa , CALANDREAU Ludovic
Published: September 2023

Les capacités cognitives rassemblent l’ensemble des processus mentaux comme l’attention, la mémorisation, l’apprentissage ou encore les capacités de raisonnement. Ces capacités cognitives permettent à un animal de comprendre et s’adapter à son environnement et sont à la base de très nombreux comportements. Dans cette revue, nous proposons dans une première partie un état des lieux des connaissances actuelles sur les capacités cognitives des volailles, en nous concentrant sur la poule pondeuse et le poulet de chair qui sont les plus étudiés en cognition. Nous montrons brièvement que ces oiseaux possèdent des sens diversifiés et développés, qu’ils interagissent avec leurs congénères et qu’ils sont capables d’apprentissages, entre autres. Même s’il reste encore des recherches à mener, ces oiseaux possèdent un répertoire de capacités cognitives bien plus étendu que ce qui est souvent imaginé. Dans une seconde partie, nous illustrons en quoi ces connaissances apportent une vision nouvelle de notre compréhension de comportements observés en élevage, comme l’exploration du parcours chez le poulet élevé en plein air, ou le picage chez les poules pondeuses. La thématique d’étude de la cognition animale, qui se développe de façon croissante au niveau international, contribue à mieux comprendre la biologie de ces animaux. Sur le long terme, les recherches en cognition permettront de proposer des pistes originales pour guider les pratiques d’élevage et favoriser le bien-être des animaux d’élevage.
Sorption Capabilities of Polypropylene/Modified Polypropylene Fibers
Authors: Petková Mária , Ujhelyiová Anna , Ryba Jozef , Hricová Marcela , Kovár Vladimir
Published: September 2023

The aim in this paper is the presentation of the influence of modification of polypropylene (PP) fibres on sorption capabilities of fibres. Modification of PP fibres were made with inorganic additives in the mass with a view to improving silicate composites – in construction. The prepared modified PP fibres were compared with pure PP fibres and their mechanical and thermomechanical properties were evaluated. And we wanted to evaluate and compare the sorption capabilities of these fibres using the Washburn method. However, the obtained results led us to the conclusion that the given method rather points to the excellent transport properties of PP fibres, as if it evaluated the sorption of the fibres.
Enzyme Activity and Dissolved Organic Carbon Content in Soils Amended with Different Types of Biochar and Exogenous Organic Matter
Authors: Bednik Magdalena , Medyńska-Juraszek Agnieszka , Ćwieląg-Piasecka Irmina , Dudek Michał
Published: September 2023

Biochars are often proposed as a strategy for long-term carbon sequestration. Nevertheless, application of pyrolysed feedstock, particularly along with exogenous organic matter, may affect carbon dynamics in soil through introduction of labile carbon pools and stimulation of extracellular enzymes activity. The main aim of this research was to evaluate the influence of biochars and unprocessed organic amendments addition in two agricultural soils on the dissolved organic carbon (DOC) content and activity of three enzymes involved in carbon turnover. In the incubation experiment, activity of dehydrogenase, β-glucosidase, cellulase and DOC content were measured on day 30, 60, 90, 180 and 360. Addition of biochars stimulated the activity of dehydrogenase and β-glucosidase, while cellulase was suppressed. Fresh biomass amendment enhanced activity of the enzymes through priming effect. DOC content tended to be the highest in treatments with high enzyme activity, suggesting that DOC introduced with amendments acted as a source of energy for microbes. Our findings support the hypothesis that biochar properties and presence of exogenous organic matter affect microbial response in soil, what might be crucial for carbon sequestration potential of biochar. However, long-term studies are recommended to fully understand the mechanisms that determine response of soil biota to biochar addition.
Unlocking the Potential: Lucid Dreaming as a Tool for Development and Innovation
Authors: Holzinger Brigitte , Ableidinger Severin
Published: September 2023

Lucid dreaming is a dream in which one is aware that they are dreaming while dreaming as well as being able to influence the dream. It is utilized in scientific research to explore dreaming, in clinical context to treat nightmares, and in private settings to have fun, solve problems, and to train various skills. In this paper, based on an interview with a lucid dreamer, a fascinating, yet hardly described way to use lucid dreaming in sports and martial arts is presented. The dreamer used his lucid dreams to explore new movements and new possibilities in martial arts. For the interview, the guide from Schädlich and Erlacher [1] was used. The interviewee’s lucid dream experience is compared to interviews of other lucid dreamers and their experience and to contemporary research on lucid dreams. While the potential of lucid dreaming is explored, the interviewee also mentions the possible shortcomings of lucid dreaming.
Analysis of the Performance of a Hybrid Thermal Power Plant Using Anfis-Based Approaches
Authors: Kabengele Kantu T. , Olayode Isaac Oyeyemi , Tartibu Lagouge K.
Published: September 2023

The hybridization of conventional thermal power plants by incorporation of renewable energy systems has witnessed widespread adoption in recent years. This trend aims not only to mitigate carbon emissions but also to enhance the overall efficiency and performance of these power generation facilities. However, calculating the performance of such intricate systems using fundamental thermodynamic equations proves to be both laborious and time-intensive. Nevertheless, possessing accurate and real-time insights into their performance is of utmost significance to ensure optimal plant operation, facilitate decision-making, and streamline power production planning. In this paper, we delve into the application of machine learning techniques, particularly hybrid methodologies, to predict the performance of power plants. Specifically, we employ three approaches: the Adaptive Neuro-Fuzzy Inference System (ANFIS), the ANFIS optimized via Particle Swarm Optimization (ANFIS-PSO), and the ANFIS optimized through Genetic Algorithm (ANFIS-GA). These techniques are alternatively applied to a complex hybrid thermal power plant, namely an Integrated Solar Combined Cycle Power Plant (ISCCPP). This ISCCPP comprises a steam turbine section, a gas turbine section, and a concentrated solar power system utilizing troughs as collectors. The energy transfer fluid, in conjunction with exhaust from the gas turbine section, heats water within a vessel or steam generator, producing steam to propel the steam turbine's rotor. Electricity generation is facilitated by both gas and steam turbines, which are coupled to a generator. The findings of this study underscore the accuracy and appropriateness of ANFIS-based models in evaluating and predicting the performance of intricate hybrid power plants. The ANFIS model exhibited an impressive overall coefficient of correlation of 0.9991. Notably, the integration of evolutionary algorithms (PSO and GA) into the ANFIS framework elevated model performance, yielding correlation coefficients of 0.9994 for ANFIS-PSO and 0.9997 for ANFIS-GA. It is noteworthy that ANFIS-GA demonstrated superior predictive capability. The modeling framework developed in this research offers valuable support to designers, energy managers, and decision-makers. It provides a robust and dependable tool to assess the performance of hybrid thermal power plants, which are poised for a global surge in numbers amid the ongoing energy transition.
Capability of Zambian Industries to Manufacture Grid-Scale Wind Turbine Blades and Towers
Authors: Mutale Sydney , Banda Amos , Wang Yong , Yasir Jan
Published: September 2023

In Zambia, three feasibility studies have been conducted to assess the potential of wind energy for power generation. However, these studies did not investigate the capability of local support industries to manufacture wind turbine blades and towers. This study aimed to investigate and profile the capability of Zambian industries to manufacture wind turbine blades and towers. The study used a mixed-method approach to collect data; this utilized qualitative and quantitative approaches. The population of Zambian industries was collected from the Zambia Association of Manufacturers based on the registered members. This data was used to define the population for the study; the population was arranged into three strata whose characteristics are homogeneous within the stratum. Due to the low population, the study was conducted on the whole population. The qualitative data was collected from each stratum using a quantitative data collection tool developed for each stratum and analyzed. The study considered the capability of manufacturing companies based on wind potential results for Class III and Class IV, which exist in some sites. The results have revealed that on an as-is basis, no company in Zambia can manufacture WT blades and towers unless there is a complete overhaul of some companies or total investment in new infrastructure and equipment. The findings are useful for stakeholders involved in developing the wind power sector in Zambia.
Comparison of Unilateral versus Bilateral Instrumented Transforaminal Lumbar Interbody Fusion in Lumbar Degenerative Diseases: A Minimum of 5-Year Follow-Up
Authors: Park Sung Cheol , Bae Jae Seong , Jung Seon Ok , Sung Kyeong-Hoon , Chung Hoon-Jae
Published: September 2023

Background and Objective: There is a paucity of literature comparing unilateral instrumented transforaminal lumbar interbody fusion (UITLIF) with bilateral instrumented TLIF (BITLIF) regarding radiological alignment, including the coronal balance, even though UITLIF might have asymmetric characteristics in the coronal plane. This retrospective study aimed to compare the clinical and long-term radiological outcomes of 1-level UITLIF and BITLIF in lumbar degenerative diseases (LDD). Materials and Methods: Patients who underwent 1-level UITLIF with two rectangular polyetheretherketone (PEEK) cages or BITLIF with ≥ 5 years of follow-up at a single hospital were included. We compared the clinical and radiological outcomes between the UITLIF and BITLIF. Results: In total, 63 and 111 patients who underwent UITLIF and BITLIF, respectively, were enrolled. The median follow-up was 85.55 months (range: 60–130). The UITLIF group had a significantly shorter operation time (185.0 [170.0–210.0] vs. 225.0 [200.0–265.0], p < 0.001) and lower estimated blood loss (300.0 [250.0–500.0] vs. 550.0 [400.0–800.0], p < 0.001) than BITLIF group. Regarding the clinical outcomes, there were no significant differences in the intermittent claudication score (p = 0.495) and Kirkaldy–Willis criteria (p = 0.707) at 1 year postoperatively. The interval changes of the local coronal Cobb angle at the index level, L1-S1 lordotic angle, and coronal off-balance from the immediate postoperative radiograph to the last follow-up were not significantly different (p = 0.687, p = 0.701, and p = 0.367, respectively). Conclusion: UITLIF with two rectangular PEEK cages is a viable option for providing comparable clinical outcomes and radiological longevity to BITLIF in 1-level LDD. In addition, UITLIF has advantages over BITLIF in terms of operative time and blood loss.
Dietary Habits, Meal-Timing, and Meal Frequency in Kuwaiti Adults: Analysis of the Kuwait National Nutrition Surveillance Data
Authors: Alkhulaifi Fatema , Al-Hooti Suad , Al-Zenki Sameer , Alomirah Husam , Darkoh And Charles
Published: September 2023

Dietary habits, including meal frequency, meal timing, and skipping meals, have been extensively studied due to their association with the development of non-communicable diseases (NCDs). This study describes dietary habits, meal timing, meal frequency, skipping meals, and late-night eating in Kuwaiti adults. The Kuwait National Nutrition Surveillance System data was utilized to reach the objectives of this study. The findings reveal that approximately 50% of the adults in Kuwait eat after 10 p.m., 29% skip breakfast, and 9.8% skip dinner. Furthermore, adults in Kuwait consume 4.4 meals per day on average. Women skip breakfast more often and have extended night fasting than men (p<0.001). Married adults skip breakfast and dinner less than unmarried adults (p<0.001). In conclusion, this descriptive study provides valuable insights into the dietary habits of Kuwaiti adults, emphasizing the importance of further investigating the association between meal timing, meal frequency, and the prevalence of NCDs in Kuwait.
Recent Advance and Prospect of Enhanced Oil Recovery Mechanisms in Reservoir Sandstone
Authors: Sikiru Surajudeen , Soleimani Hassan , Yusuf Jemilat Yetunde , Hassan Yarima Mudassir , Hamza Mohammed Falalu , Singh Ramesh
Published: September 2023

Enhanced oil recovery (EOR) refers to the various techniques used to increase the amount of crude oil that can be extracted from an oil field. These techniques are used after the primary and secondary recovery methods have been depleted. There are three main types of EOR: thermal, gas injection, and chemical. EOR techniques can be expensive and complex, but they can help to recover additional oil that would otherwise be left in the reservoir. EOR can also extend the life of an oil field and increase the overall production from a given field. The parameters affecting oil recovery are a major concern in EOR systems, and these parameters need more consideration with the factors affecting them. In this study, the influence of permeability variations on fluid flow in a sandstone reservoir was explored, as well as an up-to-date description of three states of EOR with thorough explanations of the methods utilized and the mechanisms driving their oil recovery application. The difficulties encountered in the use of the different standard EOR Mechanisms were noted, and solutions to these difficulties were proposed. Furthermore, the contemporary trend of adding nanotechnology and its synergistic effects on the stability and efficiency of traditional chemicals for EOR were examined and analysed. Finally, laboratory findings and field initiatives were discussed. The review went into detail about the transport of nanoparticles across reservoirs, as well as the evaluation of EOR, mobility ratio, and fluid displacement efficiency. This review provides thorough information on the uses of improved oil recovery mechanisms for sustainable energy production.
Unveiling the Magnetic and Structural Properties of (X2YZ; X = Co & Ni, Y = Fe & Mn and Z = Si) Full Heusler Alloy Microwires with Fixed Aspect Ratio
Authors: Salaheldeen Mohamed , Zhukova Valentina , Ipatov Mihail , Zhukov Arcady
Published: September 2023

We studied Ni2FeSi, Co2FeSi and Co2MnSi -based full Heusler alloy glass-coated microwires with the same geometric aspect ratio ρ ≈ 0.50 ± 0.01 prepared using Taylor-Ulitovsky method. The fabrication of X2YZ; (X = Co & Ni, Y = Fe & Mn and Z = Si) based glass coated microwires with fixed aspect ratio is a quite challenging due to the different samples preparation conditions. The XRD analysis shows nanocrystalline microstructure for all the samples. Space group Fm3¯m (FCC) with disordered B2 and A2-types for Ni2FeSi and Co2FeSi and ordered L21-type for Co2MnSi are observed. The change in the positions of Ni, Co and Mn, Fe in X2YSi resulted in a variation in the lattice cell parameters and the average grain size of the sample. Room temperature magnetic behavior shows a dramatic change depending on the chemical composition, where Ni2FeSi-MWs shows the highest coercivity (Hc) compared to Co2FeSi-MWS and Co2MnSi-MWs. The Hc –value of Ni2FeSi-MWs is 16 times higher than that of Co2MnSi-MWs and 3 times higher than that of Co2FeSi-MWS. Meanwhile, the highest reduced remanence is reported for Co2FeSi-MWS (Mr =0.92), , being about 0.33 and 0.22 for Ni2FeSi-MWs and Co2MnSi-MWs, respectively. From the analysis of the temperature dependence of the magnetic properties (Hc and Mr) of X2YZ-MWs we deduced that Hc shows a stable tendency for Co2MnSi-MWs and Co2FeSi-MWs, meanwhile two flipped points are observed for Ni2FeSi-MWs where the behavior of Hc changes with temperature. For Mr monotonic increase by decreasing the temperature is observed for Co2FeSi-MWs and Ni2FeSi-MWs and roughly stable for Co2MnSi-MWs. The thermomagnetic curves at low magnetic field show irreversible magnetic behavior for Co2MnSi-MWs and Co2FeSi-MWs and regular ferromagnetic behavior for Ni2FeSi-MWs. The current result illustrates the ability to tailor the structure and magnetic behavior of X2YZ-MWs at a fixed internal stresses, i.e., with fixed aspect ratio. Additionally, a different behavior was revealed in X2YZ-MWs depending on the degree of ordering and elements distribution. The tunability of magnetic properties of X2YZ-MWs makes them suitable for sensing applications.
Developing a Convenience Store Product Recommendation System through Store-Based Collaborate Filtering
Authors: Lee Jae Kyung , Kim Jinho
Published: September 2023

Recently, e-commerce companies have been adopting and continuously enhancing personalized product recommendation systems, and there is active research in this field within academia. However, personalized product recommendations in offline retail stores have not yielded significant outcomes thus far. Especially for small-format offline retail businesses like convenience stores, where customer information might be limited, providing personalized product recommendations poses even greater challenges. To address this issue, this study aimed to find a solution by shifting the perspective on recommendation methods and altering the target of recommendations in existing personalized recommendation models. In this study, recommending products that customers need in an offline store was defined as suggesting products that should be introduced and displayed within the store. In other words, the recommendation focus shifted from individuals to the stores themselves. This recommendation system proposes products that individual stores have not yet introduced but are anticipated to be purchased by customers among the products managed by the headquarters. Building upon this, we devised a store-based product recommendation system. The widely used user-based collaborative filtering model, a common technique in existing recommendation systems, was adapted into a store-based collaborative filtering model. Furthermore, various rules and logic pertinent to store operations and business considerations for convenience stores were integrated to implement this store product recommendation system. The accuracy and effectiveness of the system were demonstrated through its application in actual convenience stores. Results from the pilot implementation of the system showed that 88% of the newly recommended products in individual stores were sold based on one week of sales data, and the sales revenue was 1.75 times higher than the average sales revenue of those products across the entire company. Survey results on business owners' satisfaction yielded a score of 4.2 out of 5, indicating a high level of contentment. Additional observed effects included the expansion of product range and reduction in order lead times. However, 12% of the total recommended SKUs did not sell within one week, and 34% of the SKUs did not meet the overall average sales quantity. This research holds significance in extending the scope of personalized recommendation studies from primarily online platforms to offline retail businesses like convenience stores. It provides tangible methodologies and outcomes that can be implemented in real-world settings through the construction and validation of an actual system. The study also suggests avenues for future research to address some of the identified limitations.