bluuebunny/crossref_metadata_2025 huggingface dataset:
Voluntary feed intake and transition of ingesta in the gastrointestinal tract of juvenile cobia (Rachycentron canadum) feed different diets
Authors: Nguyen Van Minh  , M. Espe  , Pham Duc Hung  , Pham Thi Anh  , Ivar Rønnestad
Published: February 2024

This study aimed to evaluate the palatability of a plant based protein diet (BL/A), with high inclusion levels of plant protein sources but balanced in lysine to arginine ratio (1.1), compared to two locally commercial pellets CD1 (Uni-President, Ltd.) and CD2 (INVE, Ltd.), and the transition of ingesta in juvenile cobia. Juvenile cobia were fed to satiety with each of the three diets had equal feeding rate of 5.3-5.4±0.3% BW (for a meal). No differences in stomach filling occurred between cobia fed the PBD diet and those fish fed the CD1 or CD2 diet. Gastric evacuation rates in cobia were performed as an exponential relationship, and were estimated as the function VT=V0 e-b(x) (VT, volume of feed at time T; V0, volume of feed at time 0; b, the instantaneous evacuation rate; and x, time postfeeding; R²>0.95). Between 77 to 80% of the stomach contents were evacuated to the lower parts of the gastrointestinal tract at 8 h, and most of consumed feed (98%) was emptied out of the stomach at 16 h postfeeding. This was supported by the fact that cobia had good appetite in the 2nd feeding of the day. Time required for the return of appetite in cobia was within 8 h after feeding to satiation.

Key words: Cobia, lysine, arginine, evacuation
Photoperiod manipulation in the induced breeding of the rabbit fish (Siganus guttatus)
Authors: Pham Quoc Hung  , Hua Thi Ngoc Dung  , Augustine Arukwe
Published: February 2024

In teleosts, reproductive development is a continuous process throughout ontogeny and is regulated by pituitary gonadotropins (GtHs). It has been established that fish has two distinct pituitary GtHs that parallel vertebrate follicle stimulating hormone (FSH) and luteinizing hormone (LH) with respective structural similarities. In the present study we investigated the spawning of the Golden rabbit fish Siganus guttatus after exposure to different photoperiod regimes. The role of photoperiod on spawning was studied by exposing female fish to three light regimes: 16h:8h light and dark; 16h:8h dark and light; and 24h continuous light. At every first quarter of the lunar cycle (new moon), the groups exposed to the photoperiod were induced to spawn by the injection of hCG at 2000 IU/kg fish. We observed that only 24 h exposure to continuous light induced successful spawning in female injected with hCG. Fish exposed to the other light: dark regimes could not be induced to spawn. Overall, these findings suggest that continuous light can be a triggering factor for the induction of maturation and spawning of this species under aquaculture conditions.

Keywords: Siganus guttatus, photoperiod, induced breeding, spawning.
Can AQUI-S help as an aneasthetic in long-distance live transportation of spiny lobsters (Panulirus ornatus and P. Homarus)?
Authors: Le Anh Tuan  , Tran Bao Chan
Published: February 2024

In Southern Central Vietnam, there are approximately 40,000 spiny lobster cages producing 1,500-2,000 metric tones of product annually, worth around US$70 million. The major international markets for commercial-size lobsters are main-land China, Hongkong and Taiwan. This study includes three successive experiments including suitable AQUI-S dosage determining, dry transport and wet transport. The suitable AQUI-S dosage withdrawn from dosage trial was 50 mg/L which was suitable for local transport and handling procedures in 15 minutes. What we can see from the wet transport trial with AQUI-S were as follows: the (day 7) survival rate was 100% for both species P. ornatus and P. homarus. The health status of the survived lobster was normal. The possible transport density for P. ornatus and P. homarus was 200-400 individuals per cubic meter, respectively. In the dry transport method with AQUI-S, the survival rate of the ornate and Homarus lobster at day 1 for 30 hr and 40 hr transport was 100% and 92%, and 91 and 73%respectively. The survival rate at day 7 for 30 hr and 40 hr transport of the ornate and homarus lobster was 88% and 79%, and 91 and 64%, respectively. The health status of the survived lobster of both species was normal, except for the Homarus spawners (~50%) in 40 hr treatment. The possible transport density for P. ornatus and P. homarus was 530 and 720 individuals per cubic meter, respectively.

Keywords: Spiny lobster, Panulirus ornatus, Panulirus homarus, Live transportation, AQUI-S.
Tình hình kháng kháng sinh của vi khuẩn Vibrio spp. trên tôm thẻ chân trắng (Litopenaeus vannamei)
Authors: Hồ Khánh Duy  , Truyện Nhã Định Huệ  , Lưu Thị Thanh Trúc
Published: February 2024

Nhằm xác định tình hình nhiễm kháng sinh và mức độ kháng kháng sinh của vi khuẩn Vibrio trên tôm thẻ chân trắng, đề tài tiến hành phân lập được 240 chủng vi khuẩn Vibrio từ mẫu tôm nuôi thương phẩm và mẫu nước ao nuôi tại các tỉnh Long An, Bến Tre, Bạc Liêu, Tp. HCM, và mẫu tôm giống thu tại tỉnh Bạc Liêu, Ninh Thuận. Ngoài ra, đề tài còn phân lập trên mẫu tôm thu ngoài tự nhiên ở cửa biển Đông Hải, tỉnh Bạc Liêu. Tất cả các chủng vi khuẩn này được kiểm tra kháng sinh đồ bằng phương pháp đĩa khuếch tán đĩa thạch với 24 loại kháng sinh. Kết quả điều tra cho thấy trong 240 chủng vi khuẩn Vibrio spp. khảo sát có 100% chủng kháng với 1 loại kháng sinh, 95% chủng kháng với 4 loại kháng sinh, trên 50% số chủng vi khuẩn kháng trên 10 loại kháng sinh, trong đó có 1 chủng kháng với 21 loại kháng sinh thử nghiệm. Xét về tính đa kháng kháng sinh, không có chủng vi khuẩn nào nhạy với 24 loại kháng sinh thử nghiệm. Chỉ số MAR trên vi khuẩn Vibrio phân lập từ tôm giống ở Ninh Thuận rất cao (0,519) điều này cho thấy các chủng vi khuẩn Vibrio tại khu vực này tiếp xúc nhiều với các loại kháng sinh nên dẫn đến tình trạng kháng kháng sinh. Đối với những trại tôm nuôi thương phẩm ở Bạc Liêu chỉ số MAR là 0,487, điều này cho thấy người nuôi ở đây vẫn còn sử dụng nhiều loại kháng sinh trong quá trình nuôi.

Từ khóa: Kháng kháng sinh, tôm thẻ chân trắng (Litopenaeus vannmei), Vibrio spp.
Hiện trạng chất lượng môi trường biển tại bãi ngao Hiệp Thạnh tỉnh Trà Vinh năm 2016 – 2017
Authors: Nguyễn Minh Hiếu  , Hoàng Trung Du  , Võ Hải Thi  , Nguyễn Trịnh Đức Hiệu
Published: February 2024

Trên cơ sở kết quả khảo sát môi trường nước biển tại bãi nuôi ngao thuộc xã Hiệp Thạnh, huyện Duyên Hải, tỉnh Trà Vinh trong thời gian 2016-2017, bài báo đã trình bày đặc điểm phân bố của một số yếu tố sinh thái trong vùng biển nghiên cứu. Trong đó, nhiệt độ có biên độ dao động nhỏ từ 29,4-31,6 ºC; còn độ mặn lại có biên độ dao động khá lớn từ 1,00-15,80 ‰, cả hai đều nằm trong giới hạn sống của ngao. Hàm lượng NH4+ trung bình cao nhất vào cuối vụ là 195,97±59,35 μg/l và vượt gấp 2 lần giới hạn cho phép (>100 μg/l). Còn hàm lượng TSS trung bình của cả ba đợt khảo sát đều vượt quá giới hạn cho phép (>50 mg/l) lần lượt: đầu vụ là 61,04±10,65 mg/l, giữa vụ là 150,46±19,21 mg/l và cuối vụ là 87,25±45,95 mg/l. Năng suất sinh học thô cao nhất vào cuối vụ (trung bình 169,23±81,80 mgC/m³/ngày) và nằm trong giới hạn của nhiều vùng biển ở Việt Nam. Hàm lượng Chlorophyll_a cao nhất vào đầu vụ (trung bình 11,69±2,97 μg/l). Diễn biến chất lượng môi trường cho thấy: các thông số: nhiệt độ, DO, BOD5, NO2- ít có sự biến động trong khi đó các thông số quan sát còn lại (độ mặn, TSS, TOM, TN, TP, POC, NH4+, NO3-, PO43-, NSSH, Chlorophyll_a) đều có biến động khá cao. Có 7 thông số tập trung cao nhất vào cuối vụ: TOM, TN, TP, NH4+, NO3-, PO43-, NSSH và hàm lượng oxy trung bình thấp nhất cũng xuất hiện vào giai đoạn này. Bộ ba yếu tố DIN, DIP và Chlorophyll_a có tương quan thuận với nhau, với hệ số tương quan Pearson (r) dao động từ 0,342-0,756 (với mức ý nghĩa p < 0,05).

Từ khóa: Môi trường biển, bãi nuôi ngao, chất hữu cơ, muối dinh dưỡng.
Tiềm năng chế phẩm vi sinh Bacillus và Streptomyces kiểm soát Vibrio parahaemolyticus gây bệnh AHPND trên tôm thẻ chân trắng (Litopenaeus vannamei)
Authors: Võ Hồng Phượng  , Phạm Thị Huyền Diệu  , Lê Hồng Phước  , Cao Vĩnh Nguyên  , Chu Quang Trọng  , Nguyễn Công Thành  , Thái Thanh Trung  , Đặng Ngọc Thùy
Published: February 2024

Hiện nay ứng dụng men vi sinh giúp cải thiện chất lượng nước, kiểm soát một số bệnh truyền nhiễm trên tôm đã góp phần giảm thiểu bùng phát dịch bệnh. Mục tiêu của nghiên cứu là xác định khả năng ức chế của Bacillus (B1, S5) và Streptomyces X285 với vi khuẩn Vibrio parahaemolyticus gây bệnh ở tôm thẻ chân trắng (Litopenaeus vannamei). Kết quả ghi nhận, bổ sung 105 CFU/mL Bacillus và Streptomyces định kỳ 2 lần/tuần dẫn đến tỷ lệ sống của tôm cao hơn so với nhóm đối chứng và tỷ lệ bao hộ (RPS) là trên 70% sau 10 ngày gây nhiễm V. parahaemolyticus trong điều kiện in vivo. Hơn nữa, nghiên cứu tương tự đã được ứng dụng ở quy mô ao (600-700 m²), tôm được nuôi và theo dõi trong 120 ngày tại tỉnh Sóc Trăng. Bổ sung chế phẩm sinh học bao gồm Bacillus và Streptomyces 2 lần/tuần, có thể kiểm soát V. parahaemolyticus. Hơn nữa, các chỉ số môi trường nitrit, amonia đều tăng nhưng trong khoảng cho phép nuôi tôm nước lợ QCVN 02-19: 2014 /BNNPTNT. Mặt khác, ao đối chứng khi sử dụng chế phẩm vi sinh thương mại đã không mang lại hiệu quả và được thu hoạch sớm vào 45 ngày nuôi vì AHPND.

Từ khóa: Bacillus, Streptomyces, AHPND, tỷ lệ chết bảo hộ RPS (%)
Tectonic and Structural Controls on Diamondiferous Kimberlite and Lamproite and Their Bearing on Area Selection for Diamond Exploration
Authors: Helmstaedt H.
Published: February 2024

Tectonic histories and structural settings of the Diavik, Murowa, Argyle, and Bunder deposits—two kimberlitic- and two lamproitic-hosted diamond resources, respectively—are described to bring attention to similarities and differences that may help to better understand their tectonic and structural controls, and to derive some general principles about the evolution of primary diamond deposits that may be applicable to diamond exploration. As the evolution of all four deposits was multistage and took place over billions of years, possible tectonic and structural controls were assessed for the entire history of their host cratons. To facilitate comparison, each craton is discussed in five stages: (1) Mesoarchean lithosphere formation, (2) Neoarchean overprint of Early Archean protocontinental nuclei leading to cratonization, (3) Proterozoic breakup of Archean cratons and postbreakup modifications until kimberlite/lamproite emplacement, (4) tectonic and structural controls of emplacement, and (5) postemplacement preservation and erosion of diamondiferous host rocks. Whether kimberlite or lamproite, the formation and survival of cool Early Archean P-type roots, or remnants thereof, were essential requirements for deposit formation. Beginning with the breakup of the Archean protocratons, the tectonic settings of the kimberlitic and lamproitic deposits diverged significantly. The Murowa and Diavik deposit sites remained well within the Mesoarchean nuclei of their respective cratons while passive rifting occurred at craton margins, whereas the Argyle and Bunder deposits are located above or near the rifted Proterozoic craton margins. Higher P-type diamond grades survived in the roots sampled by the kimberlites than in those sampled by the lamproites. Additions of Proterozoic eclogites with subduction signatures to preexisting, relatively cool craton roots significantly improved the diamond grade of the Diavik kimberlite and raised the grade of the Argyle lamproite from uneconomic to one of the highest-grade deposits (by carats) in the world. As to kimberlite and lamproite emplacement, no definitive correlations with plume events can be made for any of the deposits, though a case can be made for some that plate margin processes were involved in metasomatic enrichment at depth as well as triggering the melting process. Emplacement sites for all four deposits were controlled by local structures.
Tumor de células de Leydig del ovario como causa de hiperandrogenismo en mujer posmenopáusica: caso clínico y breve revisión de la literatura
Authors: Chacón Jaramillo Paula Andrea , Osorio Daniel , Arias-Correal Sofía , Álvarez Mauricio , Cabrera Manuel , Luna España Maria C. , Rincón Oswaldo , Guzmán Isaac
Published: February 2024

Introducción: los tumores de ovario productores de andrógenos corresponden al 0,1-0,8?% de las causas de hiperandrogenismo clínico en mujeres. Los tumores de células de Leydig representan entre el 5?% y el 8?% de los tumores de ovario, que generalmente son benignos y unilaterales; entre el 7?% y el 18?% presentan como síntoma principal hirsutismo y son causa de hiperandrogenismo y virilización en mujeres posmenopáusicas.
Objetivo: presentar un caso de virilización femenina secundario a tumor de células de Leydig del ovario; guiar al lector a través de la discusión de las deferentes etiologías de hiperandrogenismo en mujeres posmenopáusicas y resumir en un algoritmo el abordaje diagnóstico de pacientes con hiperandrogenismo.
Presentación del caso: se presenta el caso de una mujer posmenopáusica con cuadro de hirsutismo y alopecia androgénica de un año de evolución, niveles de testosterona marcadamente elevados y resonancia nuclear magnética (RNM) pélvica que reporta una masa en la región anexial derecha. Es llevada a salpingooforectomía bilateral con reporte de tumor maligno de células de Leydig, estadio IA. Posterior a la resección se resuelve el hiperandrogenismo bioquímico y mejoran el hirsutismo y la alopecia.
Discusión: se discute la manera de abordar a las pacientes posmenopaúsicas con evidencia de hiperandrogenismo según el algoritmo creado.
Conclusión: es importante realizar una investigación meticulosa de los posibles diagnósticos diferenciales, al tener en cuenta que los signos de hiperandrogenismo de rápida instauración deben alertar sobre la posibilidad de una neoplasia productora de andrógenos.
La cooperación entre plataformas como mecanismo para abordar la moderación de contenido en línea
Authors: Tortorella Federica
Published: February 2024

Moderar contenido en línea desde un enfoque de respeto a los derechos y libertades es una tarea que aún sigue pendiente. En este escenario, el concepto de cooperación entre plataformas ha sido reivindicado en múltiples ocasiones; al momento, este modelo ha sido aplicado para contrarrestar la publicación de contenido sexual infantil explícito y de tipo terrorista o extremista. Además de revisar algunas tendencias actuales y definiciones relacionadas con el tema de análisis, el objetivo de esta investigación es procurar mayor entendimiento del concepto de cooperación entre plataformas y de su actual aplicación. A partir del estudio del caso del Global Internet Forum to Counter Terrorism, principalmente, este trabajo invita a analizar los principios y mecanismos de dicho foro, para entender si podrían ser de utilidad en la mejora de los esfuerzos encaminados a contrarrestar el contenido dañino en línea. La investigación finaliza con una propuesta para crear un modelo de moderación de contenido en línea, que esté orientado a los derechos humanos, promoviendo la noción de cooperación entre plataformas, como la aplicada por el organismo aquí tratado, e incluyendo conceptos que surgen de un planteamiento del Global Partners Digital, así como el uso del modelo de múltiples partes interesadas que caracteriza a iniciativas como ICANN.
La carrera por la regulación de la inteligencia artificial
Authors: Leon Coronado Cristian
Published: February 2024

La carrera por la regulación de las tecnologías de inteligencia artificial (IA) comenzó en el año 2017 y tiene su punto clave en el 2023, con la aprobación de la AI Act, de la Unión Europea, posterior a la conmoción suscitada por la popularización de los modelos de inteligencia artificial generativos. Este último hito marca el fin de una era de autorregulación, en un nuevo tiempo delimitado por la discusión acerca de la forma que debe tomar la regulación de la IA. Al respecto, y en tanto la legislación europea puede tener influencia en América Latina, es preciso visibilizar las capas de complejidad y los distintos enfoques en la carrera por esta regulación. Por un lado, tenemos la disyuntiva entre una regulación débil y una fuerte; la primera está más enfocada en aspectos comerciales y posee una impronta ética, mientras que la regulación fuerte está basada en controles más estrictos y asentada sobre estándares internacionales de derechos humanos. Por otro lado, están las adaptaciones regulatorias en torno a la normativa existente en protección de datos, ciberseguridad y transparencia, entre otros. Por último, una tercera capa está relacionada con la gobernanza y el rol del Estado, el sector privado y los modelos de múltiples partes interesadas. Lejos de llegar a su meta, la carrera por la regulación de la IA contempla varios desafíos, además, deberá mediar la presión de saber “quién llega antes” en el aprovechamiento tecnológico, con el riesgo de que ello ocasione regulaciones insuficientes y limitadas que no tomen en consideración estándares éticos rigurosos y basados en derechos humanos.
El concepto de “cuerpo-territorio” como herramienta para analizar el impacto de la vigilancia biométrica en el espacio urbano: una propuesta epistemológica
Authors: Cavalcanti de Alcântara Rafaela
Published: February 2024

Es posible notar una creciente implementación de tecnologías de reconocimiento facial remoto y masivo en los más diversos espacios públicos y de acceso público en ciudades de América Latina. Este ensayo investiga si el concepto de “cuerpo-territorio” puede utilizarse como herramienta para comprender el impacto del uso de esas tecnologías, especialmente con respecto a las mujeres y los cuerpos feminizados. Para ello se recurre a estudios en el campo de la vigilancia, que se centran en las nuevas tecnologías que informatizan cuerpos, a reflexiones realizadas por investigadores latinoamericanos, a la idea de “perspectiva parcial”, presentada por Donna Haraway, y también a estudios que se dedican a ofrecer una crítica feminista respecto de las políticas urbanas. Los conceptos mencionados representan, en última instancia, puntos de partida para pensar el impacto del uso masivo del reconocimiento facial en el cuerpo-territorio de las/en las ciudades a través de prácticas extractivistas, apuntando a la necesidad de alejar una supuesta neutralidad a la hora de contemplar personas, espacios y tecnologías, en el análisis de la disputa por el espacio urbano y las nuevas formas de recolección y procesamiento de datos.
Evaluation of Drought Tolerance of Cowpea (Vigna unguiculata (L.) Walp
Authors: Pimentel Carlos
Published: February 2024

Global climate changes are intensifying and may threaten agricultural production, especially in marginal tropical areas. Cowpea is a legume of great socioeconomic importance, grown worldwide, mainly under rainfed conditions. It is currently considered tolerant to water stress and presents diverse local varieties. However, water stress can negatively affect plants' various morphophysiological, biochemical, and molecular functions, especially in the pre-flowering stage, which is the most sensitive period to the effects of water deficit. Evaluating leaf protoplasmic tolerance may represent a promising approach for investigating drought tolerance, enabling discrimination between different genotypes.
Coumarins and their Derivatives as Potential Modulators of Immune Response
Authors: Bipat Robbert
Published: February 2024

Coumarins are molecules varying from simple to more complex compounds that are widely available in nature, while some of them have been synthesized. They possess significant pharmacological potential, but until now their applicability in medicine has been limited to their ability to limit coagulation in blood. Our immune system plays a major role in disease states, with both ends of the spectrum being significant. Both a slow or absent immune reaction on one hand and an overreaction of the system on the other hand may be detrimental to our health. Since the process of coagulation seems to be related to the immune system, studies showing a possible role for coumarins and their lead compounds in modulating the immune system. were searched for in databases like PubMed, Google Scholar and Hinari. Several studies with promising results revealing a role for coumarins in modulating the immune response, were found However, all these studies have been carried out in in vitro and simple animal models. Randomized clinical trials will be required to demonstrate the therapeutic value of these readily available coumarin compounds.
Da implantação à implementação: (re)visitando a educação do campo no Tocantins
Authors: Dos Santos Thiago Ferreira , Vizolli Idemar , De Almeida Rejane Cleide Medeiros
Published: February 2024

O presente estudo tem como objetivo identificar os limites e possibilidades para contribuições dos cursos de Licenciatura em Educação do Campo (LEdoC) ofertados pela Universidade Federal do Tocantins (UFT) e Universidade Federal do Norte do Tocantins (UFNT). A pesquisa foi desenvolvida a partir dos Projetos Pedagógicos dos Cursos e de produções acadêmicas presentes no Catálogo de Teses e Dissertações da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES). Com os termos de busca “Educação do Campo” AND “Tocantins”, identificou-se 07 Teses e 21 Dissertações que se enquadram no escopo do estudo. Os resultados obtidos apontam que há necessidade de aprofundar estudos a fim de se conhecer as contribuições destes cursos para a população tocantinense; estabelecer políticas para que os licenciados possam realizar concursos públicos em suas áreas de formação; e ainda, rever os PPC’s na perspectiva de ofertar uma formação que, efetivamente, contemple os anseios dos trabalhadores rurais tocantinenses.
Detection of Underground Geological Structure by Radio-wave Laneway Penetration Technology
Authors: Guo Wenxin , Guo Rui , Lan Tianlong , Niu Heping , Chen Jiangfeng
Published: February 2024

Hidden geological anomalies such as roof water and fault of working face will affect the mining progress and even induce coal and rock dynamic disaster. Therefore, it is necessary to use radio-wave laneway penetration meter for detection in the process of coal mining. The geological structure existing in the F6226 working face has been basically verified by this technology, which provides technical basis and support for geological work such as drilling. Through the study of the application effect of F6226 working face laneway penetration technology, and comparison with the real data revealed in the actual drilling and mining, the delineated abnormal areas in the laneway penetration results show that the abnormal areas of the 3D seismic data are verified and a collapse column is modified. The application of laneway penetration technology in mine geology improves the safety of coal mine production.
1972-2022 : conception, réception et portée des Symbola de Philippe Gauthier
Authors: Fröhlich Pierre
Published: February 2024

Cet ouvrage austère fait date, mais porte aussi la marque du contexte de son écriture (une thèse « principale » de « Doctorat d’État »), de son auteur et de sa filiation intellectuelle.
Atene, gli alleati e l’impero: symbolai e symbola tra V e IV secolo a.C.
Authors: Faraguna Michele
Published: February 2024

L’obiettivo di questo articolo è quello di concentrarsi sui capitoli 2 e 4 dei Symbola di Philippe Gauthier e valutare fino a che punto la sua argomentazione principale, che sottolinea la differenza tra le symbolai «commerciali» (e procedurali) del V secolo e i symbola «giudiziari» (e sostanziali) del IV secolo, sia ancora valida. Il punto di partenza è che le symbolai si iscrivevano in un quadro giudiziario più ampio che comprendeva, accanto ad esse, accuse di natura politica sorte nelle poleis alleate e giudicate dai tribunali ateniesi e «processi» di natura amministrativa anch’essi giudicati ad Atene. Nella prima parte dell’articolo si sostiene che i confini tra symbolai e symbola erano più labili di quanto ipotizzato da Gauthier. I processi apo sumbolōn, quando sono attestati nei decreti ateniesi del V secolo, chiaramente non riguardano solo casi commerciali. Il termine symbolaion, in particolare, ha un significato più ampio (e più tecnico) di «affaire», «rapport d’affaire» (Gauthier) o «contract», e si può dimostrare che si riferisce a obbligazioni sia ex delicto che ex contractu. Le symbolai, in altre parole, coprivano casi legali riguardanti persone e beni. La seconda parte dell’articolo si concentra su alcune importanti prospettive suggerite dal libro di Gauthier per quanto riguarda l’impero ateniese e le relazioni di Atene con i suoi alleati. Si sostiene che la Lega delio-attica fosse anche un sistema economico che comportava, sin dalla sua fondazione, la creazione di una rete di accordi interstatali che rendevano possibile la libera e sicura circolazione di persone e merci.
On the Greek-philosophical impact on Labeo’s definition of the locatio conductio operis
Authors: Peinhopf Marlene
Published: February 2024

Roman law was influenced by Hellenistic concepts across the various periods of its development. This influence is reflected in the inclusion of Greek terms in the Latin texts of Roman jurists. The following article addresses Labeoʼs definition of locatio conductio operis and its interpretation in Romanist doctrine. The article explores Labeo’s use of the terms ἀποτέλεσμα and ἔργον in his definition, offering a linguistic analysis of these lines that attends to the meaning of the Greek language usage. In conclusion, the significance of the Hellenistic influence here is grounded by reviewing some relevant aspects of Greek law and the circumstances under which Labeo wrote his text, which is cited in D. 50.16.5.1.
Role of Otoacoustic Emissions in Hearing Assessment of Children with Autism
Authors: Elbabour Faria M.
Published: February 2024

Evaluation of hearing is essential in the diagnostic process of children suspected having autism spectrum disorder (ASD). The aim of this study was to examine the efficiency and feasibility of utilizing otoacoustic emissions as an objective test to assess hearing in children diagnosed with ASD. A pilot study was conducted over a period of 3 years (from September 2019 to November 2022) in the Audiology Department at the Center for Specialty Surgeries, Benghazi, Libya. A total of 61 children with autism aged between 2-15 years referred for hearing evaluation were enrolled in the study. The clinical procedure consisted of otoscopic ear examination, and Otoacoustic Emission (OAE) recording. OAE testing was attempted on the study sample (n 51) who met the inclusion criteria. And successfully completed for 44 participants (86%): 40 cases (91%) from the first attempt while 4 cases (9%) needed a second or more visit. Four autistic children (9%) had absent otoacoustic emissions in one ear. Testing couldn't be completed for 7 children (14%) due to behavioral difficulties. Results of this study showed the feasibility of using Distortion Product Otoacoustic Emissions (DPOAEs) in assessment of hearing for children with autism for whom obtaining reliable behavioral responses can be challenging.
Electron Beams Commissioning and Initial Measurements on an Elekta Synergy Platform Linear Accelerator
Authors: Aghila Abdurraouf. M. , Saad Saad. S. , Elmasrub Faraj A.
Published: February 2024

A linear accelerator (Linac) must be commissioned for use in treating cancer patients. This research work aims to analyze part of the electron beam data produced by the Elekta Synergy Platform Linac at the radiotherapy department at Tripoli University Hospital, Tripoli, Libya. In this paper, percentage depth dose (PDD), beam profile and applicators factor were studied at five different electron beam energies (4, 6, 8, 10 and 12 MeV). The relative measurement part of this study was carried out using a PTW MP3-M 3D water scanning system, and the absolute measurement was taken using a plane parallel ionization chamber and a unidose E electrometer. The analysis for these measurements has yielded the following results: a) The Penetrative qualities of all the electron beam energies were within the manufacturer's tolerance limits of ±1%; b) the maximum values of beam flatness of 2.94 and beam symmetry of 1.93 are within the accepted limits of International Electrotechnical Commission criteria; c) A penumbra maximum value of 1.30 was measured at the 4-MeV electron beam energy and using a 14×14 cm2 applicator size. All the obtained parameters were within the permissible limits. Therefore, the electron beams can be safely used for clinical purposes.
صيغ الأمر ودلالاتها في ديوان البيان: للشاعر محمد مصطفى صوفية
Authors: حمدان عبد الحميد محمد
Published: February 2024

إن المتأمل في الشعر العربي يجد أن الشاعر محمد صوفية واحد من شعراء العربية المعاصرين؛ فقد كان له دور كبير في نشر الأدب العربي عامة، والأدب الليبي خاصة؛ فقد استطاع أن ينتج شعراً تميز بجودة المعاني، وسهولة الألفاظ، وهو جدير بالدراسة مما جعلني أرغب في دراسة شعره فاخترت عنوان البحث: (صيغ الأمر ودلالاتها في ديوان البيان للشاعر محمد مصطفى صوفية)؛ وذلك للتعرف على صيغ الأمر المستعملة، ودلالاتها المختلفة، واستخدمت في هذه الدراسة المنهج التحليلي القائم على تحليل الأبيات تحليلاً دقيقاً، للوصول إلى المعاني التي قصدها الشاعر، وخلصت الدراسة إلى نتائج منها:- أن الشاعر وافق جمهور النحاة في استعماله لصيغ الأمر بجميع أنواعها، وأنه وظف صيغ الأمر لأغراض دلالية مختلفة بحسب المقام الذي وردت فيه، فجاءت الصيغة تارة للمدح، والثناء، وتارة للتوبيخ، وأخرى للدعاء، وغير ذلك من الأعراض الدلالية، وبهذا يتبين لي أن الشاعر قد استعمل اللغة فيما يوافق جمهور النحاة، والبلاغة، وكان حريصاً على اختيار الألفاظ المناسبة متحرياً الإيجاز مبتعداً عن الألفاظ الغريبة والوحشية.
التعليق على النصوص القانونية والأحكام الجنائية
Authors: عبد الرحمن الحسن علي محمد
Published: February 2024

تتناول هذه الدراسة مسألة التكوين المنهجي للمهتمين بالمجال القانوني، وتحديدا التعليق على الأحكام والنصوص القانونية الجنائية، والذي يكتسب أهمية بالغة كأحد مجالات العلوم القانونية، لاسيما في خلق باحث قادر على النقد والتحليل، ومن هذا المنطلق تهدف هذه الدراسة إلى توضيح أساليب استخدام الفكر القانوني بشكل منطقي وعلمي لفهم وتحليل القواعد والمبادئ القانونية عن طريق استخدام المنهج التحليلي، لاسيما مع القصور الملاحظ في هذا المجال العلمي وعدم الاهتمام به، سواء من الناحية الشكلية أو الموضوعية، وقد توصلت الدراسة إلى أن التعليق على النصوص القانونية والأحكام القضائية التي تصدر عن القضاء الجنائي يتطلب مجموعة من الشروط الشكلية والموضوعية للقيام به، كما أنه أساسي لإنهاء التضارب الذي قد يقع بين أحكام المحاكم عند الفصل في القضايا المماثلة، بسبب الاختلاف في تفسير بعض النصوص القانونية أو اتباع آراء مغايرة.
النمذجة الرقمية للخصائص الجيومورفولوجية لحوض وادي لهمسة
Authors: عوض عوض عبد الواحد
Published: February 2024

هدفت الدراسة إلى إنشاء نموذج رقمي متكامل لحوض وادي لهمسة يضم خرائط للارتفاعات والانحدارات وشبكة التصريف النهري، بالإضافة إلى توفير بيانات مورفومترية دقيقة للحوض باستخدام برمجيات نظم المعلومات الجغرافية Geographic Information Systems (GIS)، والصور الرادارية أو ما يعرف بنماذج الارتفاعات الرقميةDigital Elevation Models (DEM) ، واعتمدت الدراسة على المنهج الوصفي التحليلي في وصف حوض التصريف وشبكته النهرية ووصف وتحليل نتائج قياس المعاملات المورفومترية، كما تم الاعتماد على الأسلوب الكمي من خلال استخدام العديد من المعاملات التي تقيس أبعاد الحوض وخصائصه المورفومترية. وتوصلت الدراسة لعدة نتائج منها أن حوض وادي لهمسة يميل في شكله إلى الاستطالة، ربما يكون ذلك نتيجة تجانس التكوينات الجيولوجية داخل الحوض، وأشارت قيمة نسبة التضرّس وقيمة الوعورة إلى قلّة تضرّس سطح الحوض، وأشارت قيمة التكامل الهبسومتري إلى أنّ الحوض قد وصل إلى مرحلة النضج في دورة التعرية.
EUROPEAN PUT OPTION PRICING MODEL WITH GRAM-CHARLIER EXPANSION IN THIRD MOMENTS
Authors: Rifki Chandra Utama  , Afra Maulia Fitriana Hilnie  , Wiwit Angga Siswahyudi
Published: February 2024

The Black-Scholes model is one of the most popular and widely applied option pricing models in both academic and practical contexts developed by Black and Scholes (1973). The practical assumption in the Black-Scholes model is stock return following the normal distribution with constant volatility. However, many stock returns are not normally distributed, so should consider the skewness and kurtosis of the stock return. This developmental model adapts the Gram-Charlier expansion to adapt skewness and kurtosis to the Black-Scholes formula. Approximation method used is an alternative approach with Hermite polynomial. The observed stocks are SPG, C, and AXP by taking stock price data from November 11, 2016  to November 11, 2017 with maturity date at January 18, 2019 and interest rate (r) of 1,25%. After comparing the average MSE of both models, found that the third moment Gram-Charlier expansion is better than the Black-Scholes model in modeling SPG, C, and TSLA stock prices
DRUG SALES WEB-BASED INFORMATION SYSTEM AT DILA FARMA PHARMACY USING WATERFALL METHOD
Authors: Safera Agna , Ricky Martin Mohamad , Hidayat Taufik , Surya Permana Indra
Published: February 2024

The volume of data and information that must be handled makes manual processing impossible. A tool with a high degree of computation speed and data delivery is necessary for processing a massive volume of data. These instruments consist of hardware and software, Dila Farma Pharmacy is a pharmacy that still uses manual techniques to calculate the sale of medications, such as documenting pharmaceuticals and their pricing in a ledger. This manual technique requires considerable time and effort and is prone to error. This project aims to develop a medicine distribution system that can facilitate data processing computations. This study's objective is to build and develop a web-based application for processing drug data and comprehensive information on the sorts of pharmaceuticals used at Dila Farma Pharmacy.
PENERAPAN INTERNET OF THINGS (IOT) PADA SISTEM PENGAMAN PINTU DENGAN SIDIK JARI BERBASIS ARDUINO
Authors: Nasiroh Siti
Published: February 2024

Perkembangan teknologi IoT yang semakin meningkat yang salah satunya dengan menerapkankonsep baru pada pengembangan ruang yang luas yang diimplementasikan pada rumah pintaruntuk menyediakan kenyamanan, keamanan. Dengan menggunakan sidik jari berbasis Arduino,sehingga dibutuhkan analisa untuk merancang sebuah sistem keamanan pintu denganmenggunakan sidik jari sebagai autentikasi utamanya. Metode yang digunakan dalam penelitianini yaitu memanfaatkan wifi untuk inisialisasi fingerprint sensor dan solenoid,akses sistem,membaca permintaan dan melanjutkan perintah membuka pintu. Setiap yang masuk rumah harusmelakukan proses scan sidik jarinya di sensor fingerprint, agar dapat membuka pintu. Sedangkanuntuk membuka pintu dari dalam rumah, dengan cara menyentuh sensor, setelah dilakukan,pengujian maka dapat disimpulkan bahwa sistem atau alat ini dapat digunakan sebagai pengamanpintu rumah dengan menggunakan sidik jari dengan waktu rata-rata pembacaan sensor fingerprintselama 1,4 detik.
METODE PERAWATAN DAN PERBAIKAN MESIN CREEPER DI PABRIK PENGOLAH KARET PT. PERKEBUNAN NUSANTARA VII UNIT REJOSARI
Authors: Paundra Fajar , Bahtiar Yusuf , Elmiawan Puguh
Published: February 2024

Mesin Creeper adalah alat pemipih gumpalan lateks yang keluar dari mobile crusher yang akan menjadi lembaran creep pada stasiun penggilingan dan peremahan yang berada di Pebrik karet. Penelitian ini bertujuan untuk mengetahui metode perawatan dan perbaikan mesin creeper di pabrik pengolah karet PT. Perkebunan Nusantara VII Unit Rejosari Pabrik Karet Pematang Kiwah. Metode yang digunakan dalam pengumpulan data adalah pengenalan dan observasi, wawancara dan diskusi, studi literature dan pengambilan data di lapangan. Hasil dari penelitian ini menunjukkan perlu dilakukannya perawatan jenis Preventive Maintenance, Corrective Maintenance dan Breakdown Maintenance terhadap Mesin Creeper di PTPN VII Unit Pematang Kiwah agar mesin dapat bekerja secara optimal.
ANALISIS EFEKTIVITAS PITA PENGGADUH UNTUK MENGURANGI LAJU KECEPATAN PADA MOBIL DI Jl. S PARMAN PURBALINGGA
Authors: Nasiroh Siti , Riyanto Ari Budi
Published: February 2024

Pita Penggaduh merupakan Kelengkapan tambahan yang biasanya dipasang melintang pada jalan rawan kecelakaan, perempatan atau deket sekolah untuk mengingatkan pengemudi selalu waspada akan bahaya.  Tujuan penelitian ini untuk menganalisa efektifitas pita penggaduh yang dipasang diruas jalan S. Parman Purbalingga seberapa besar pengaruhnya pada laju kecepatan kendaraan yang melewati jalan tersebut  khususnya  kendaraan pribadi roda 4 disaat  kondisi jalan yang sedang sepi ataupun ramai. untuk  memperoleh ketepatan prediksi kendaraaan dalam melaju dengan kencang atau lambat digunakan Algoritma Naive Bayes dengan hasil yang didapat  bahwa mobil yang  melewati pita penggaduh memiliki keefektivitasan meperlambat 58%  sedangkan  42% kendaraan tetap melaju kencang.
Analisis Artificial Hip Joint Saat Melakukan Gerakan Salat Menggunakan FEM
Authors: Al Hakim Reza Azizul Nasa , Sakuri Sakuri
Published: February 2024

Saat ini sendi panggul atau biasa disebut dengan hip joint merupakan sendi yang sangat penting dalam sistem kerangka manusia. Sendi panggung sering mengalami kerusakan yang disebabkan oleh banyak faktor. Kerusakan pada sendi panggul biasanya menyyebabkan pasien harus menggunakan sendi panggul buatan atau biasa disebut dengan artificial hip joint. Penggantian sendi panggul buatan mencapai 600.000 pasien pada tahun 2005. Penduduk di Indoensia yang mayoritas beragama muslin membuat pengguna artificial hip joint menggunakannya untuk melakukan gerakan salat, sedangkan artificial hip joint yang dibuat oleh Eropa tidak diperuntukan untuk melakukan gerakan salat. Pada penelitian kali ini disimpulkan bahwa sendi panggul buatan atau artificial hip joint buatan Eropa tidak cocok untuk melakukan gerakan salat yaitu gerakan tahiyat awal dan tahiyat akhir karena terjadi dislokasi dan impigment pada artificial hip joint.
Rancang Bangun Sistem Informasi Manajemen Surat Berbasis Web Pada Fakultas Sains dan Teknik Universitas Perwira Purbalingga
Authors: Ramadhan Rizqy Akbar , Nasiroh Siti , Darmawan Agus
Published: February 2024

Pengolahan data arsip yang dilakukan secara manual dapat menjadi penghambat kinerja suatu instansi, salah satunya pada Fakultas Sains dan Teknik Universitas Perwira Purbalingga. Pencatatan data-data surat masuk maupun surat keluar menggunakan cara-cara manual dikhawatirkan data-data surat akan mudah rusak atau hilang serta tulisan akan sulit dibaca oleh pegawai seiring berjalannya waktu yang nantinya akan menimbulkan kekeliruan serta memiliki kendala dalam hal keamanan data. Oleh karena itu, diperlukan suatu sistem yang terkomputerisasi untuk menangani proses pengelolaan, pendisposisian, pengarsipan, dan rekapitulasi laporan surat masuk dan surat keluar sehingga meminimalisir kesalahan atau kekeliruan, keamanan data dan kehilangan data. Sistem Informasi Manajemen Surat dirancang menggunakan PHP dan MySQL. Karena berbasis web, aplikasi ini memiliki kelebihan yaitu mudah untuk dioperasikan, admin dapat mengelola dengan login user sehingga dapat melakukan pengelolaan surat masuk dan surat keluar serta dapat melakukan pencari data dan mencetak laporan. Hasil yang diperoleh dari implementasi Aplikasi Manajemen Surat ini yaitu untuk menjadi pengganti proses konvensional agar terdigitalisasi sehingga dapat berjalan lebih cepat, efektif dan efisien serta dapat membantu fakultas dalam hal pengarsipan, administrasi surat, dan memberikan informasi laporan surat masuk, laporan surat keluar dan disposisi.

Kata Kunci: Manajemen Surat, Pengarsipan, PHP, MySQL

 

Archival data processing that is done manually can hinder the performance of an agency, one of which is at the Faculty of Science and Engineering, Perwira Purbalingga University. Recording incoming and outgoing mail data using manual methods is feared that the letter data will be easily damaged or lost and the writing will be difficult to read by employees over time which will cause errors and have problems in terms of data security. Therefore, a computerized system is needed to handle the process of managing, disposing, archiving, and recapitulating incoming and outgoing mail reports so as to minimize errors or errors, data security and data loss. The Mail Management Information System is designed using PHP and MySQL. Because it is web-based, this application has the advantage of being easy to operate, the admin can manage by user login so that it can manage incoming letters and outgoing letters and can search for data and print reports. The results obtained from the implementation of this Mail Management Application are to be a substitute for conventional processes to be digitized so that they can run faster, more effectively and efficiently and can help faculty in terms of archiving, mail administration, and provide information on incoming mail reports, outgoing mail reports and dispositions.

 Keywords: Mail Management, Archiving, PHP, MySQL
Eksistensi Solusi Persamaan Diophantine Non Linier Polinomial ax2 − kxy + y2 + 1x = 0
Authors: Sugandha Agus
Published: February 2024

Persamaan Diophantine merupakan persamaan polinomial yang memuat dua atau lebih variabel dengansolusinya berupa bilangan bulat. Persamaan Diophantine polinomial memiliki banyak cara yang dapatdigunakan untuk menyelesaikannya, seperti menggunakan keterbagian, teori kekongruenan, fraksikontinu, persamaan Pell, dan lainnya. Tujuan dari penelitian ini adalah untuk menentukan syaratbilangan bulat k dan l sedemikian sehingga persamaan Diophantine non linier ax2 − kxy+y2+lx=0dengan 2≤a≤15 memiliki tak hingga solusi bilangan bulat positif (x,y). Pada penelitian ini denganmenggunakan teorema-teorema dalam fraksi kontinu dan persamaan Pell, diperoleh hasil bahwaterdapat pasangan-pasangan bilangan bulat k dan l sedemikian sehingga persamaan Diophantine nonlinier ax2 − kxy+y2+lx=0 untuk 2≤a≤15 memiliki tak hingga solusi bilangan bulat positif (x,y) dengangcd(x,y,l)=1.KATA KUNCI: P
Relationship Between Profanity and Political Polarization
Authors: Wei Adeline
Published: February 2024

This paper delves into the contentious issue of political polarization and explores the psychological underpinnings of anger within social media profanity and its contribution to political polarization, emphasizing its role in pushing individuals to adopt extreme viewpoints and resist compromise. First of all, it highlights the role of social media in shaping political discourse and its dominance in terms of political discussion platforms. While social media platforms provide a diverse space for individuals to express different viewpoints, they also foster echo chambers, reinforcing existing beliefs and isolating users from differing perspectives. It emphasizes the effect of the use of profanity and strong language on social media intensifying emotional reactions, pushing individuals toward extreme political positions, and deepening polarization. Profanity signals group membership and leads to more negative perceptions of opposing groups, exacerbating the polarization cycle. In conclusion, the essay calls for a critical examination of the impact of profanity and aggression in political discussions, especially on social media. It underscores the need for responsible and respectful discourse to mitigate the growing problem of political polarization. Ultimately, it emphasizes the importance of thoughtful communication in fostering a more constructive political environment.
Addressing and Mitigating Educational Inequalities in Rural and Remote Areas of Japan Through Online Learning
Authors: Bao Shanice
Published: February 2024

This paper explores the current status of rural education within Japan, with a particular emphasis on the integration of online learning technologies and the challenges that arise as a result. Through an analysis of pertinent literature on both rural education and online learning within Japan, this study uncovers the existing disparities between rural and urban education. The research puts forward a set of suggestions influenced by thriving global models, supporting the establishment of peer learning networks and external support systems, cooperative initiatives between urban and rural schools, and the extension of online educational resources. Additionally, the study highlights the significance of cultural awareness in online education design and stresses the need for bespoke learning approaches, incentives to boost students motivation, and provisions for professional development opportunities for teachers. These recommendations provide insights for policymakers, educators, and stakeholders, aiming to enhance educational opportunities and outcomes for students in rural and remote areas of Japan.
Netflix's Strategies, Innovations, and Challenges in Shaping the Future of Television Media
Authors: Xi Qi
Published: February 2024

This comprehensive article provides an in-depth analysis of Netflix's current strategy, revealing how it is making good use of data and algorithms to make decisions and looking at its potential to achieve a dominant position in the TV media industry. In particular, the article highlights Netflix's focus on original content production and its determined global expansion strategy, while also pointing to the key role of digital technology in shaping its business model. However, the article also identifies potential weaknesses in these strategies, particularly in addressing the challenges of global expansion and user experience. The article also discusses in detail the impact of Netflix's strategy on the Korean media industry, as well as user dissatisfaction with increasing content cancellations and complex narrative structures. Ultimately, the article highlights that the key to maintaining a competitive edge and continued dominance in the ever-changing television media landscape lies in the use of constant innovation and a personalised approach, and that Netflix must continue to adapt to the needs of different markets, balancing its global appeal with a local flavour, to ensure its future success.
New forms of employment and labour protection in China
Authors: Du Wei , Wang Xueyu ,   ILO Office for China and Mongolia,
Published: February 2024

In recent years, China's labour market has seen a significant rise of the new forms of employment, which differs in scale, type, and function compared to the developed economies. This study focuses on four emerging forms of the new employment patterns in China, including app-based gig work, micro-task crowdsourcing, prosumer work, and platform outsourcing to individuals, particularly examining their diversity, scale, development, and the status quo of the labour protection. Additionally, the paper summarises the challenges faced by the labour law and policy in the digitalisation era in China, as well as the government and social partners' innovative measures to address them.
Nghiên cứu các yếu tố ảnh hưởng đến gắn kết công việc của nhân lực ngành nhân sự
Authors: Nguyễn Thị Liên
Published: February 2024

Nghiên cứu sử dụng mô hình với 328 mẫu để khám phá các yếu tố tác động đến sự gắn kết công việc của nhân lực ngành nhân sự tại Việt Nam. Kết quả nghiên cứu cho thấy sự hài lòng về tiền lương, sự hài lòng về công việc, và sự hài lòng về môi trường làm việc, hành vi đổi mới sáng tạo và sự hài lòng về các mối quan hệ trong tổ chức là các yếu tố có ảnh hưởng trực tiếp đến sự gắn kết công việc của nhân lực làm nghề nhân sự. Trong đó, hành vi đổi mới sáng tạo được đưa vào để xem xét với tư cách là một giả thuyết mới so với các nghiên cứu phổ biến về các nhân tố ảnh hưởng đến gắn kết công việc. Sử dụng kết quả nghiên cứu này, doanh nghiệp có thể chủ động xây dựng các chiến lược nhân sự phù hơp để tăng cường sự gắn kết của nhân viên nhân sự, góp phần vào sự ổn định nhân lực và phát triển bền vững của doanh nghiệp.