bluuebunny/crossref_metadata_2025_split huggingface dataset:
Autonomous Earthquake Location via Deep Reinforcement Learning
Authors: Kuang Wenhuan , Yuan Congcong , Zou Zhihui , Zhang Jie , Zhang Wei 
Published: October 2023

Abstract
Recent advances in artificial intelligence allow seismologists to upgrade the workflow for locating earthquakes. The standard workflow concatenates a sequence of data processing modules, including event detection, phase picking, association, and event location, with elaborately fine-tuned parameters, lacking automation and convenience. Here, we leverage deep reinforcement learning and develop a state-of-the-art earthquake robot (EQBot) to help advance automated earthquake location. The EQBot learns from tremendous trial-and-error explorations, which aims to best align the observed P and S waves, complying with the geophysical principle of gather alignments in source imaging. After training on earthquakes (M ≥ 2.0) for a decade in the Los Angeles region, it can locate earthquakes directly from waveforms with mean absolute errors of 1.32 km, 1.35 km, and 1.96 km in latitude, longitude, and depth, respectively, closely comparable to the cataloged locations. Moreover, it can automatically implement quality control by examining the alignments of P and S waves. Our study provides a new solution to advance the earthquake location process toward full automation.
Subdaily Ambient Noise Monitoring at Parkfield, California, by Combining C1 and C3
Authors: Meng Yi , Liu Zhikun , Li Tiancheng , Zhang Rui 
Published: October 2023

Abstract
Monitoring the temporal variation in seismic velocity plays a critical role in understanding the dynamic processes of the subsurface at different scales. Many seismic velocity changes related to earthquakes and volcanic activities have been obtained using ambient noise correlation in recent years; however, their temporal resolution is limited, typically from a few to dozens of days, which makes it challenging to explore the valuable but short-duration changes in subsurface media. In this article, we develop a method based on the correlation of the coda of the ambient noise correlation (C3) with a multiple-component combination and introduced singular value decomposition-based Wiener filter denoising technique. Using permanent network data, we achieved subdaily ambient noise monitoring at Parkfield, California, using 4-hr cross-correlation stacking with 2-hr step. We identified that the maximum seismic velocity drop delayed the mainshock of the 2004 Mw 6.0 Parkfield earthquake by ∼41 hr, during which the temporal velocity process may have been affected by strong aftershocks, including an Mw 5.0 aftershock that occurred one day after the mainshock; however, no significant precursory change was detected. Our method provides an opportunity for monitoring the short-term change of underground structures based on the widely distributed seismic networks. In addition, the idea of obtaining reliable subsurface information within a short time through high-order noise correlation in this work has important enlightenment for ambient noise imaging and monitoring in broader fields.
Using plant extracts for the micropropagation of buckwheat
Authors: Borovaya S. A. , Boginskaya N. G. , Klykov A. G. 
Published: October 2023

Background. Various plant hormones are used (cytokinins, auxins) to increase the regeneration efficiency and the net reproduction rate of buckwheat in vitro. However, the growth and development rates of plantlets have been noted to be low under these conditions. For this reason, search for the plant extracts that are able to stimulate the regenerative ability of plants is a promising direction of biotechnological research.Materials and methods. Aseptic single-node cuttings of common buckwheat plantlets (varieties Dikul and Izumrud) were grown on MS nutrient media with plant extracts from Fagopyrum esculentum and Reynoutria japonica (0.1, 0.5, and 1%) for 21 days. The following morphobiological paramaters of the plantlets were evaluated: plant height, the number of internodes, the number of leaves, leaf length, and the number and length of roots.Results. Dealcoholized aqueous solutions of the extracts from F. esculentum and R. japonica in the studied concentrations (0.1-1%) significantly stimulated the growth and development of the buckwheat plantlets increasing their net reproduction rate (4.00-6.00) and rhizogenesis. The media with the plant extracts in concentrations of 0.1-0.5% were observed to produce the strongest positive effect. As the result, the morphobiological characteristics of the plantlets and the success rate of the micropropagation were the highest.
Research results of local samples of winter garlic in the Republic of Dagestan
Authors: Nimatulaev N. M. , Suzan V. G. , Litvinenko N. V. , Grekhova I. V. 
Published: October 2023

The collection of winter garlic from Yekaterinburg was transferred to the Federal Agrarian Research Center of the Republic of Dagestan. The Ekaterinburg collection contained specimens of Dagestan origin; when transferred to Dagestan, it was significantly expanded with local forms. Total studied in 2021-2022 60 samples, all of them belong to the group of autumn shooters.According to the average mass of bulbs over 20 g, seven samples were distinguished: 1-4-3, 1-20-2, 1-20-3, 1-21-3, 1-21-4, 2-5-3, 2-9-2. They also noted the largest masses of bulbs – 25,8- 30,4 g, the coefficient of variation did not exceed 33%. For reproduction by air bulbs, taking into account their number and weight of the bulb, out of seven samples marked by the mass of the bulb, three were distinguished: 1-4-3, 1-21-4 and 2-9-2, the indicators exceed the average values. According to the maximum mass of an air bulb (150 mg), sample 1-22-2 stood out, but this sample had an average bulb weight of 13,9 g. Sample 2-13-1 also exceeded the average values for the number of bulbs and bulb mass, but it had an average bulbs less than 20 g and a coefficient of variation of 41%. The results of studying the collection of Dagestan origin showed that the samples represented a complex population with high differentiation in bulb mass and inflorescence characteristics, which made it possible to isolate the source material using individual selection. According to the average mass of bulbs, samples 1-4-3, 1-20-2, 1-20-3, 1-21-3, 1-21-4, 2-5-3, 2-9-2 were distinguished, of which for propagation by air bulbs –samples 1-4-3, 1-21-4 and 2-9-2.
Effect of alanine on accumulation of phenolic compounds in the leaves of chicory (Cichorium intybus L.)
Authors: Mavrina P. O. , Adamov G. V. , Malankina E. L. 
Published: October 2023

Common chicory (Cichorium intybus L.) is a promising source of raw materials for both food (roots) and pharmaceutical industries (leaves). One of the ways to increase the biologically active compounds content in medicinal plant materials is the use of various growth stimulants, which include amino acids. The article presents the results of an experimental study conducted in 2021-2022 which study the effect of of L-alanine and a racemic mixture of alanine (DL) on the accumulation and qualitative composition of phenolic compounds (PC) in the leaves of chicory.Results. It was found that the use of alanine in different concentrations did not have a significant effect on the increase of phenolic compounds content, and also did not affect the on their accumulation dynamics. The use of alanine enantiomers did not affect the qualitative composition of phenolic compounds, but led to a change in the ratio of hydroxycinnamic acids to each other. It has been established that during the growing season the percentage ratio between the main phenolic compounds in chicory leaves changes - the content of chlorogenic acid increases in proportion to the decrease in chicory acid. Treatment with L-alanine at a concentration of 25 mg/l during the study period in both varieties led to the largest reduction in the content of chicory acid compared to others. It was noted that the total content of PC is higher in a year with warmer and more arid weather, it was higher on average by 0,7 %.
Assessment of the effect of a complex of biological products on the growth, development and yield of cucumber in light culture
Authors: Bocharova M. A. , Terekhova V. I. , Aniskina T. S. 
Published: October 2023

The ecologization of protected soil is currently one of the most important tasks of agricultural production, in this regard, for the vegetable growing of protected soil, the introduction of effective microorganisms into the substrate when growing plants in low-volume technology is of great interest. Biologics can enhance metabolic processes in the nutrient substrate and plants, plant resistance to adverse environmental conditions, increase plant productivity and improve product quality. Therefore, the purpose of our work is to analyze the effect of a complex of biological products on the agrobiological parameters of cucumber hybrids Mewa F1 and Valigora F1 on the 39, 67, 95 and 123 day of cultivation from the appearance of mass shoots. The research was carried out in conditions of high industrial greenhouses of the "Venlo" type, in the winter-spring turns of 2021 and 2022. The preparations were introduced into the tank mixture and fed to the plants through a drip irrigation system. Measurements of economically valuable indicators were noted weekly. Descriptive statistics and ANOVA methods were used for statistical data analysis.Results. When using biological products, a positive effect was noted on the growth and development of cucumber plants, as well as on the increase in leaf plate and leaf surface area (LAI). The dates of the onset of single and mass flowering of plants and single fruiting occurred earlier when using a complex of biological preparations for 1-5 days. When assessing the effect of the complex of biological products on the development of the photosynthetic apparatus, the positive effect of biological products on the area and index of the leaf surface on the 39, 67 and 95 days of cultivation was established. In addition, a significant effect of the complex on the increase in yield per m2 per turnover was revealed. In the conducted studies, the increase in yield was due to an increase in the weight and diameter of fruits. The total height of the plants and the weekly growth of the complex of drugs practically did not affect. A comparative analysis of the growth processes and yield of cucumber hybrids Mewa F1 and Valigora F1 when applying root fertilizing with a complex of biological preparations showed great effectiveness from their use.
Science for citizenship: advances to face the challenges of training scientifically literate citizens in Chile
Authors: Ramos Araya Maria Cecilia , Castillo Castillo Brayan , Godoy Villanueva Carlos Marcelo 
Published: October 2023

In 2020, the subject Science for Citizenship was included in the Chilean school curriculum in response to the global challenges to move towards scientific literacy to encourage citizens to participate in decision making for their personal lives or in their participation socially. The objective of the research was to understand the contributions of the subject Science for Citizenship to the Chilean school curriculum to advance toward scientific literacy.This article presents a descriptive analysis of the Chilean educational policy documents, based on the review of the purposes, approaches, modules, and learning objectives of the Science for Citizenship subject. The findings show that the curriculum promotes the acquisition, use, critical analysis, creation, and communication of information that addresses science and technology.
Overconfidence, fear of failure, risk-taking and entrepreneurial intention: The behavior of undergraduate students
Authors: Villanueva Eduart , Martins Izaias 
Published: October 2023

This study investigates the relationship between students’ behavior, risk evaluation and entrepreneurial intention (EI) to verify whether overconfidence, fear of failure, risk-taking, and risk capacity affect overall risk evaluation. The study uses a sample of 828 undergraduate students from a variety of university programs, and the data were analyzed using exploratory factor analysis and hierarchical regression models. The results show that overconfidence, risk-taking, and risk capacity are related to EI. Further, overconfidence, fear of failure, and risk capacity are related to risk evaluation; thus, suggesting a relationship between students’ behavior, risk evaluation and EI. This study offers novel evidence that helps to better understand students’ risk behaviors and entrepreneurial decision-making.
Regress as a Change of Community Law on Games and Their Effect on Property Ownership
Authors: Arianti Farida , Fikri M. Ihsanul , Rahmi Zikra 
Published: October 2023

<p><em>There has been a change in Islamic law in interpreting game play in society when the Eid celebration takes place and has made it a tradition. Changes in the law in the form of ignoring the rules of Islamic law regarding qimar (gambling). The purpose of this study is to explore how the process of partial abandonment of Islamic law is related to the implementation of the tasks of the community subsystem, namely Islamic economics and explore its influence on the abandonment of Islamic law. The method used is qualitative with a case study approach. Sources of data by looking at the social situation about the game to the point of boredom, data collection techniques through in-depth interviews with interview guides addressed to informants in the form of contract actors, as well as religious leaders, in addition to observation and analysis using qualitative descriptive analysis. The results of the study explain that first; The community plays games as a means of enlivening the Eid celebration every year in one village, in addition to being a means of property ownership for the community in a village. Second, there is a partial regress, especially in the form of disclaiming Islamic economic rules, so that the function of Islamic law as a comprehensive social control cannot be achieved. The implication of this research is the view of betting-style game play and then being raffle into a new and cultivated habit.</em></p>
INHIBIN B: KANDIDAT KONTRASEPSI PRIA BERBASIS HORMON PEPTIDA
Authors: Akmal Muslim , A Aulanni'am , Widodo Muhammad Aris , B. Sumitro Sutiman , Purnomo Basuki B. 
Published: October 2023

Penelitian ini bertujuan mengetahui efek injeksi inhibin B sebagai kandidat kontrasepsi pria berbasis hormon peptida terhadap berat badan, berat dan panjang testis, dan duktus epididimis. Sebanyak 24 ekor tikus (Rattus novergicus) jantan strain Wistar berumur 4 bulan dengan berat badan 150-200 g dikelompokkan secara acak ke dalam 4 kelompok, yaitu kontrol (KO), KI, KII, dan KIII. Kelompok kontrol, tikus hanya diinjeksi dengan 0,1 ml PBS tanpa inhibin B; Kelompok KI, KII, dan KIII tikus diinjeksi dengan 25, 50, dan 100 pg inhibin B/ekor. Injeksi dilakukan secara intra peritoneal sebanyak 5 kali dengan selang waktu 12 hari selama 48 hari. Injeksi pertama, isolat inhibin B dilarutkan dalam PBS sebanyak 0,05 ml dan diemulsikan dengan 0,05 ml Freud's complete adjuvant (FCA). Pada injeksi kedua, ketiga, keempat, dan kelima menggunakan inhibin B dalam PBS 0,05 ml dan diemulsikan dengan 0,05 ml Freud's incomplete adjuvant (FICA). Pada hari keenam setelah injeksi terakhir, tikus dikorbankan secara dislocatio cervicalis setelah terlebih dahulu dilakukan penimbangan berat badan. Berat testis dan duktus epididimis ditimbang dengan menggunakan timbangan elektrik, sedangkan diameter dan panjang testis dan duktus epididimis diukur dengan menggunakan jangka sorong. Hasil penelitian menunjukkan bahwa tidak terdapat perbedaan yang nyata (P0,05) antara kelompok kontrol dan perlakuan terhadap berat badan, berat, panjang, dan diameter testis dan duktus epididimis. Penelitian ini menyimpulkan bahwa inhibin B berpotensi dikembangkan sebagai kandidat kontrasepsi pria berbasis hormon peptida yang aman dan reversible.
ANALISIS FILOGENETIK ISOLAT VIRUS AVIAN INFLUENZA SUBTIPE H5N1 ASAL PROVINSI ACEH
Authors: Helmy Teuku Zahrial , Widayanti Rini , Haryanto Aris 
Published: October 2023

Penelitian ini bertujuan melakukan studi filogenetik virus AI tipe A subtipe H5N1 isolat asal Provinsi Aceh yang dapat memberikan informasi secara molekuler tentang kekerabatan antar isolat virus AI tipe A subtipe H5N1. Sebanyak 11 isolat virus AI asal Provinsi Aceh yang dikoleksi oleh Laboratorium Virologi Balai Penyidikan dan Pengujian Veteriner (BPPV) Regional I di Medan, Sumatera Utara selama kurun waktu 2007-2008 digunakan dalam penelitian ini. Metode penelitian meliputi preparasi sampel isolat virus, ekstraksi RNA, amplifikasi gen H, elektroforesis DNA hasil amplifikasi, sekuensing, dan analisis data hasil sekuensing dengan software MEGA 4.0. Hasil sekuensing diketahui bahwa daerah yang teramplifikasi sebesar 191 bp. Hasil allignment dari nukleotida 191 bp ditemukan urutan nukleotida yang menyandi 5 asam amino yang berbeda pada posisi asam amino ke-493, 498, 499, 504, dan 515 antara isolat virus AI subtipe H5N1 asal Provinsi Aceh selama tahun 2007-2008 dengan isolat dari pembanding dari gene bank. Kontruksi pohon filogenetik menunjukkan bahwa virus AI subtipe H5N1 asal Provinsi Aceh tahun 2007-2008 mengelompok secara terpisah dari isolat Indonesia yang lain, tetapi masih dalam klaster virus AI subtipe H5N1 Indonesia.
PERAN OVISIDAL HERBAL SERBUK BIJI PEPAYA MATANG DAN ALBENDAZOL TERHADAP DAYA BEREMBRIO TELUR CACING Ascaris suum SECARA IN VIVO
Authors: Ardana Ida Bagus Komang , Bakta I Made , Damriyasa I Made 
Published: October 2023

Telah dilakukan penelitian untuk mengetahui pemberian herbal serbuk biji pepaya matang secara oral pada babi ascariasis terhadap daya berembrio telur cacing pada tinja dan pada uterus cacing yang keluar dari babi yang diobati tersebut. Pada percobaan ini sebanyak 24 ekor babi Landrace betina dengan bobot badan ± 10-15 kg, umur ± 15 minggu yang terinfeksi cacing Ascaris suum (A. suum) secara alami, dengan egg per gram (EPG) berkisar 250-2500 butir. Babi tersebut dibagi menjadi empat kelompok perlakuan (P0, P1, P2, dan P3) masing-masing terdiri dari 6 ekor. Kelompok P1 dan kelompok P2 mendapat perlakuan dengan herbal serbuk biji pepaya matang per oral dengan dosis masing-masing 1 dan 3 g/kg bobot badan (P2) selama 3 hari berturut-turut. Kelompok P3 mendapat perlakuan dengan albendazol dosis 0,5 mg/kg bobot badan (Zodalben 0,04 ml/kg bobot badan) sedangkan kelompok P0 bertindak sebagai kontrol tanpa pengobatan. Hasil penelitian ini menunjukkan bahwa pengobatan dengan herbal serbuk biji pepaya matang pada babi ascariasis ternyata mampu menurunkan daya berembrio telur cacing dalam tinja babi dan dalam uterus cacing secara efektif sehingga dapat digunakan untuk pengendalian askariasis pada babi.
KONSENTRASI GONADOTROPIN RELEASING HORMONE (GnRH) EKSTRAK OTAK SAPI PERANAKAN FRIESIEN HOLSTEIN BETINA FASE FOLIKULER DAN LUTEAL
Authors: Isnaini Nurul , Wahjuningsih Sri 
Published: October 2023

Penelitian ini bertujuan mengidentifikasi kandungan gonadotropin releasing hormone (GnRH) ekstrak jaringan otak sapi dewasa pada fase
folikuler (ovari berfolikel) dan fase luteal (ovari berkorpus luteum). Pada penelitian ini digunakan 2 buah otak sapi perah peranakan Friesien
Holstein (FH) dewasa dengan umur 7-8 tahun yang pada saat disembelih kondisi ovarinya menunjukkan fase folikuler (1 buah otak) dan fase
luteal (1 buah otak). Analisis kandungan GnRH dilakukan dengan metode enzyme-linked immunosorbent assay (ELISA) indirect. Hasil penelitian
menunjukkan bahwa konsentrasi GnRH bagian otak sapi pada fase folikuler vs fase luteal berturut-turut untuk bagian otak parietal lobe of
cerebral hemisphere, corpus callosum, thalamus, hipothalamus, pituitary gland (hipofise), midbrain, cerebellum, pons, dan medulla oblongata
masing-masing adalah 260 vs 270, 110 vs 170, 230 vs 320, 1590 vs 1310, 840 vs 1250, 530 vs 810, 200 vs 480, 230 vs 100, dan 220 vs 70 μg/ml.
Dari hasil penelitian disimpulkan bahwa semua bagian otak sapi yang diamati mengandung GnRH dengan konsentrasi yang berbeda antara fase
folikuler dengan fase luteal.
The Effect of Jaloh (Salix tetrasperma Roxb) Extract on Fat level and Water Content in muscle of Broiler Chicken which Heat Stres Condition
Authors: Zein Yana , Sugito Sugito , Amiruddin Amiruddin , Roslizawaty Roslizawaty , Gholib Gholib , Isa M. 
Published: October 2023

Exposure to heat conditions is one of the causes of heat stress for broilers. This research was conducted to determine the effect of administering jaloh extract (Salix tetrasperma Roxb) in drinking water to broiler chickens with heat stress condition on fat levels and muscle water content (intramuscular). This research was conducted using a completely randomized design with a sample of 15 broiler chickens strain MB 90 aged 21 days which placed in individual cages and a temperature of 34 ± 1ºC was set for 4 hours/day for 7 consecutive days. The treatment groups were as follows: P0 as control group without jaloh extract; P1 was given jaloh extract at a dose of 50 mg/l; P2 was given jaloh extract at a dose of 100 mg/l in drinking water. Each treatment group consisted of 5 replications. The data were analyzed using ANOVA test, and then continued with the Duncan test. The results showed that jaloh extract at a dose of 100 mg/l in drinking water could increase the fat content of meat up to 16.63% and could reduce the water content to 44.52%. It could be concluded that the administration of jaloh extract at a dose of 100 mg/l in drinking water could increase fat levels and reduce intramuscular muscle water content in broiler chickens with heat stress condition