bluuebunny/crossref_metadata_2025 huggingface dataset:
Covariant Integral Quantization of the Semi-Discrete SO(3)-Hypercylinder
Authors: Gazeau Jean-Pierre , Murenzi Romain
Published: November 2023

Covariant integral quantization with rotational SO(3) symmetry is established for quantum motion on this group manifold. It can also be applied to Gabor signal analysis on this group. The corresponding phase space takes the form of a discrete-continuous hypercylinder. The central tool for implementing this procedure is the Weyl–Gabor operator, a non-unitary operator that operates on the Hilbert space of square-integrable functions on SO(3). This operator serves as the counterpart to the unitary Weyl or displacement operator used in constructing standard Schrödinger–Glauber–Sudarshan coherent states. We unveil a diverse range of properties associated with the quantizations and their corresponding semi-classical phase-space portraits, which are derived from different weight functions on the considered discrete-continuous hypercylinder. Certain classes of these weight functions lead to families of coherent states. Moreover, our approach allows us to define a Wigner distribution, satisfying the standard marginality conditions, along with its related Wigner transform.
A Novel Path Planning Approach for Mobile Robot in Radioactive Environment Based on Improved Deep Q Network Algorithm
Authors: Wu Zhiqiang , Yin Yebo , Liu Jie , Zhang De , Chen Jie , Jiang Wei
Published: November 2023

The path planning problem of nuclear environment robots refers to finding a collision-free path under the constraints of path length and an accumulated radiation dose. To solve this problem, the Improved Dueling Deep Double Q Network algorithm (ID3QN) based on asymmetric neural network structure was proposed. To address the issues of overestimation and low sample utilization in the traditional Deep Q Network (DQN) algorithm, we optimized the neural network structure and used the double network to estimate action values. We also improved the action selection mechanism, adopted a priority experience replay mechanism, and redesigned the reward function. To evaluate the efficiency of the proposed algorithm, we designed simple and complex radioactive grid environments for comparison. We compared the ID3QN algorithm with traditional algorithms and some deep reinforcement learning algorithms. The simulation results indicate that in the simple radioactive grid environment, the ID3QN algorithm outperforms traditional algorithms such as A*, GA, and ACO in terms of path length and accumulated radiation dosage. Compared to other deep reinforcement learning algorithms, including DQN and some improved DQN algorithms, the ID3QN algorithm reduced the path length by 15.6%, decreased the accumulated radiation dose by 23.5%, and converged approximately 2300 episodes faster. In the complex radioactive grid environment, the ID3QN algorithm also outperformed the A*, GA, ACO, and other deep reinforcement learning algorithms in terms of path length and an accumulated radiation dose. Furthermore, the ID3QN algorithm can plan an obstacle-free optimal path with a low radiation dose even in complex environments. These results demonstrate that the ID3QN algorithm is an effective approach for solving robot path planning problems in nuclear environments, thereby enhancing the safety and reliability of robots in such environments.
Application of G.hn Broadband Powerline Communication for Industrial Control Using COTS Components
Authors: Brunner Kilian , Dominiak Stephen , Ostertag Martin
Published: November 2023

Broadband powerline communication is a technology developed mainly with consumer applications and bulk data transmission in mind. Typical use cases include file download, streaming, or last-mile internet access for residential buildings. Applications gaining momentum are smart metering and grid automation, where response time requirements are relatively moderate compared to industrial (real-time) control. This work investigates to which extent G.hn technology, with existing, commercial off-the-shelf components, can be used for real-time control applications. Maximum packet rate and latency statistics are investigated for different G.hn profiles and MAC algorithms. An elevator control system serves as an example application to define the latency and throughput requirements. The results show that G.hn is a feasible technology candidate for industrial IoT-type applications if certain boundary conditions can be ensured.
Venomous Noodles: The Evolution of Toxins in Nemertea through Positive Selection and Gene Duplication
Authors: Sonoda Gabriel Gonzalez , Tobaruela Eric de Castro , Norenburg Jon , Fabi João Paulo , Andrade Sónia C. S.
Published: November 2023

Some, probably most and perhaps all, members of the phylum Nemertea are poisonous, documented so far from marine and benthic specimens. Although the toxicity of these animals has been long known, systematic studies on the characterization of toxins, mechanisms of toxicity, and toxin evolution for this group are scarce. Here, we present the first investigation of the molecular evolution of toxins in Nemertea. Using a proteo-transcriptomic approach, we described toxins in the body and poisonous mucus of the pilidiophoran Lineus sanguineus and the hoplonemertean Nemertopsis pamelaroeae. Using these new and publicly available transcriptomes, we investigated the molecular evolution of six selected toxin gene families. In addition, we also characterized in silico the toxin genes found in the interstitial hoplonemertean, Ototyphlonemertes erneba, a meiofaunal taxa. We successfully identified over 200 toxin transcripts in each of these species. Evidence of positive selection and gene duplication was observed in all investigated toxin genes. We hypothesized that the increased rates of gene duplications observed for Pilidiophora could be involved with the expansion of toxin genes. Studies concerning the natural history of Nemertea are still needed to understand the evolution of their toxins. Nevertheless, our results show evolutionary mechanisms similar to other venomous groups.
Key Amino Acid Residues That Determine the Antigenic Properties of Highly Pathogenic H5 Influenza Viruses Bearing the Clade 2.3.4.4 Hemagglutinin Gene
Authors: Zhang Yuancheng , Cui Pengfei , Shi Jianzhong , Chen Yuan , Zeng Xianying , Jiang Yongping , Tian Guobin , Li Chengjun , Chen Hualan , Kong Huihui , Deng Guohua
Published: November 2023

The H5 subtype highly pathogenic avian influenza viruses bearing the clade 2.3.4.4 HA gene have been pervasive among domestic poultry and wild birds worldwide since 2014, presenting substantial risks to human and animal health. Continued circulation of clade 2.3.4.4 viruses has resulted in the emergence of eight subclades (2.3.4.4a–h) and multiple distinct antigenic groups. However, the key antigenic substitutions responsible for the antigenic change of these viruses remain unknown. In this study, we analyzed the HA gene sequences of 5713 clade 2.3.4.4 viruses obtained from a public database and found that 23 amino acid residues were highly variable among these strains. We then generated a series of single-amino-acid mutants based on the H5-Re8 (a vaccine seed virus) background and tested their reactivity with a panel of eight monoclonal antibodies (mAbs). Six mutants bearing amino acid substitutions at positions 120, 126, 141, 156, 185, or 189 (H5 numbering) led to reduced or lost reactivity to these mAbs. Further antigenic cartography analysis revealed that the amino acid residues at positions 126, 156, and 189 acted as immunodominant epitopes of H5 viruses. Collectively, our findings offer valuable guidance for the surveillance and early detection of emerging antigenic variants.
Longitudinal Analysis of Antibody Response Following SARS-CoV-2 Infection Depending on Disease Severity: A Prospective Cohort Study
Authors: Zirou Christina , Gumeni Sentiljana , Bellos Ioannis , Ntanasis-Stathopoulos Ioannis , Sklirou Aimilia D. , Bagratuni Tina , Korompoki Eleni , Apostolakou Filia , Papassotiriou Ioannis , Trougakos Ioannis P. , Terpos Evangelos
Published: November 2023

Objective: Severe coronavirus disease 19 (COVID-19) is characterized by a dysregulated inflammatory response, with humoral immunity playing a central role in the disease course. The objective of this study was to assess the immune response and the effects of vaccination in recovered individuals with variable disease severity up to one year following natural infection. Methods: A prospective cohort study was conducted including patients with laboratory-confirmed COVID-19. Disease severity was classified as mild, moderate, and severe based on clinical presentation and outcomes. Anti-RBD (receptor binding domain) and neutralizing antibodies were evaluated at multiple timepoints during the first year after COVID-19 diagnosis. Results: A total of 106 patients were included; of them, 28 were diagnosed with mild, 38 with moderate, and 40 with severe disease. At least one vaccine dose was administered in 58 individuals during the follow-up. Participants with mild disease presented significantly lower anti-RBD and neutralizing antibodies compared to those with moderate and severe disease up to the 3rd and 6th months after the infection, respectively. After adjusting for covariates, in the third month, severe COVID-19 was associated with significantly higher anti-RBD (β: 563.09; 95% confidence intervals (CI): 257.02 to 869.17) and neutralizing (β: 21.47; 95% CI: 12.04 to 30.90) antibodies. Among vaccinated individuals, at the 12th month, a history of moderate disease was associated with significantly higher anti-RBD levels (β: 5615.19; 95% CI: 657.92 to 10,572.46). Conclusions: Severe COVID-19 is associated with higher anti-RBD and neutralizing antibodies up to 6 months after the infection. Vaccination of recovered patients is associated with a remarkable augmentation of antibody titers up to one year after COVID-19 diagnosis, regardless of disease severity.
The Link between the Perception of Animal Welfare and the Emotional Response to Pictures of Farm Animals Kept in Intensive and Extensive Husbandry Systems: An Italian Survey
Authors: Riggio Giacomo , Angori Elisabetta , Menchetti Laura , Diverio Silvana
Published: November 2023

As livestock production grows to satisfy the global demand for animal products, understanding public attitudes towards different husbandry systems becomes essential for both animal welfare and socio-economic reasons. This study aimed to investigate people’s emotional responses toward pictures of farm animals kept in intensive and extensive husbandry systems, their perception of animal welfare, and their choices as animal product consumers. A questionnaire that included demographic questions and photos of cows, pigs, chickens, and rabbits in both intensive and extensive systems was distributed electronically and physically and completed by 835 respondents. Photos of animals in intensive systems elicited more negative emotions, especially for pigs and rabbits (p < 0.05), as opposed to extensive systems, which elicited more positive emotions, especially for chickens (p < 0.001). Higher welfare levels were perceived for extensively farmed animals (p < 0.001) and for cattle compared to all other species, regardless of the husbandry system (p < 0.001). The quality of the emotional response was positively associated with welfare perception (p < 0.001) and negatively associated with the importance given to welfare when purchasing animal products (p < 0.001). Finally, the emotional response was found to be affected by gender, education, household composition, living area, pet ownership, and eating habits. The implications and limitations of these findings are discussed.
Enhanced Post-Drought Compensatory Growth and Water Utilization in Maize via Rhizosphere Soil Nitrification by Heterotrophic Ammonia-Oxidizing Bacteria
Authors: Wang Xiao-Ling , Tian Shi-Shi , Yu Hao , Sun Run-Hong , Qi Lin , Song Peng , Yang Shen-Jiao
Published: November 2023

Heterotrophic ammonia-oxidizing bacteria (HAOB), crucial for soil nitrification, have unclear benefits for crop water use. This study explored the impact of a novel HAOB strain, S2_8_1, on maize drought resilience via pot culturing. The experiment included various treatments: control with sufficient water (CK), sufficient water + HAOB strain (WI), limited rewatering (DL), sufficient rewatering (DH), sufficient rewatering + HAOB strain (DHI), and limited rewatering + HAOB strain (DLI). The results revealed below-compensatory growth with DL compared to CK. Interestingly, the HAOB strain displayed survival resilience with a 96% increase in its copy numbers in the rhizosphere soils compared to CK during rewatering. The DLI treatment exhibited equal to compensatory growth, showing a remarkable 169% surge in the water use efficiency versus CK. This improvement was attributed to heightened rhizosphere soil nitrification by HAOB, enhancing the cytokinin production in roots and its transference to leaves, leading to a 25% higher leaf cytokinin concentration with DLI compared to CK during rewatering. Additionally, HAOB DHI prompted overcompensatory growth after sufficient rewatering, boosting nitrification and facilitating cytokinin root-to-leaf transport. However, its water use efficiency was 39% lower than DLI. The study highlights HAOB’s importance in optimizing crop water use, particularly in scenarios of limited rewatering in cropland soils.
Effects of Rapid Thermal Cycling (Cold Shock) on Fish Health: Evidence from Controlled Laboratory Experiments, Behavior, and Telemetry
Authors: Schoenfuss Heiko L. , Roos John D. , Loes Tim G. , Schmidt Brian E. , Bartell Stephen E.
Published: November 2023

Powerplants frequently use river water for cooling, subsequently discharging warm effluent. Some of these plants can cycle on and off rapidly based on electricity demand, resulting in dramatic temperature fluctuations in the receiving waters. To understand the impacts on resident fish populations in the Upper Mississippi River, we (i) assessed the effects of rapid water cooling on three native fish species; (ii) investigated whether smallmouth bass (Micropterus dolomieu) behavior favored movement into thermal plumes when given a choice of cooler or ambient water; and (iii) tracked native M. dolomieu with acoustic tags and recorded core body temperature during the thermal cycling process of a steam electric powerplant. In cold shock experiments, mortality was associated with rapid temperature declines and dependent on the final (cold) holding temperature. The species or developmental stage of the tested organism did not affect survival. When given a choice between warm and ambient waters, M. dolomieu exhibited little inclination to acclimate to the warmer water and instead “self-regulated” by moving in and out of the warm water plume. This finding was supported by telemetry data on M. dolomieu. The core temperature of the fish never increased more than 2 °C above the ambient (upstream) Mississippi River temperature, even during warm effluent discharge.
Comparative Assessment of Different Image Velocimetry Techniques for Measuring River Velocities Using Unmanned Aerial Vehicle Imagery
Authors: Wijaya Firnandino , Liu Wen-Cheng , Suharyanto  , Huang Wei-Che
Published: November 2023

The accurate measurement of river velocity is essential due to its multifaceted significance. In response to this demand, remote measurement techniques have emerged, including large-scale particle image velocimetry (LSPIV), which can be implemented through cameras or unmanned aerial vehicles (UAVs). This study conducted water surface velocity measurements in the Xihu River, situated in Miaoli County, Taiwan. These measurements were subjected to analysis using five distinct algorithms (PIVlab, Fudaa-LSPIV, OpenPIV, KLT-IV, and STIV) and were compared with surface velocity radar (SVR) results. In the quest for identifying the optimal parameter configuration, it was found that an IA size of 32 pixels × 32 pixels, an image acquisition frequency of 12 frames per second (fps), and a pixel size of 20.5 mm/pixel consistently yielded the lowest values for mean error (ME) and root mean squared error (RMSE) in the performance of Fudaa-LSPIV. Among these algorithms, Fudaa-LSPIV consistently demonstrated the lowest mean error (ME) and root mean squared error (RMSE) values. Additionally, it exhibited the highest coefficient of determination (R2 = 0.8053). Subsequent investigations employing Fudaa-LSPIV delved into the impact of various water surface velocity calculation parameters. These experiments revealed that alterations in the size of the interrogation area (IA), image acquisition frequency, and pixel size significantly influenced water surface velocity. This parameter set was subsequently employed in an experiment exploring the incorporation of artificial particles in image velocimetry analysis. The results indicated that the introduction of artificial particles had a discernible impact on the calculation of surface water velocity. Inclusion of these artificial particles enhanced the capability of Fudaa-LSPIV to detect patterns on the water surface.
Emprendimientos en migrantes venezolanos como alternativa de supervivencia
Authors: León Lady , Aguilar Bazarán Byron Joel , Bazarán Rueda Julecxi Jacqueline
Published: November 2023

El objetivo del estudio fue analizar los emprendimientos en migrantes venezolanos como alternativa de supervivencia mediante la aplicación de encuestas de la cual se elaboró una ecuación econométrica explicativa. La metodología fue descriptiva y se implementó el MCO como recurso de estimación y determinante de los factores que incidieron en los emprendimientos venezolanos. Por lo tanto, el modelo COBB-DOUGLAS de tipo log-lin obtuvo los factores significativos para la duración de los emprendimientos venezolanos siendo educación financiera y el capital inicial, las pruebas econométricas como el test de Jarque Bera, Breusch Pagan y el factor de inflación de varianza dieron validez al estudio. Concluyendo que aún las medidas desde el sector público no han sido desarrolladas en todos los sectores o lugares de mayor concentración de migrantes, siendo imperante la capacitación a los potenciales emprendedores, así como líneas de créditos con tasas de interés accesibles y faciliten el inicio de las actividades económicas de manera ágil y segura.
Coastal Flood Risk and Smart Resilience Evaluation under a Changing Climate
Authors: Shen Ping , Wei Shilan , Shi Huabin , Gao Liang , Zhou Wan-Huan
Published: November 2023

Coastal areas are highly vulnerable to flood risks, which are exacerbated by the changing climate. This paper provides a comprehensive review of the literature on coastal flood risk assessment and resilience evaluation and proposes a smart-resilient city framework based on pre-disaster, mid-disaster, and post-disaster evaluations. First, this paper systematically reviews the origin of the resilience concept and the development of flood resilience. Next, it introduces the social-acceptable risk criteria and the flood resilience level for different flood phases. Then, a coastal flood resilience management system for smart cities is proposed, covering 3 phases of flood disasters (before, during, and after). Risk assessment is essential in pre-disaster scenarios because it provides a comprehensive understanding of the potential hazards and vulnerabilities of an area or system. Big data monitoring during disasters is an essential component of effective emergency management and response that can allow for more informed decisions and thus quicker, more effective responses to disasters, ultimately saving lives and minimizing damage. Data-informed loss assessments are crucial in providing a rapid, accurate understanding of post-disaster impact. This understanding, in turn, is instrumental in expediting recovery and reconstruction efforts by aiding decision-making processes and resource allocation. Finally, the impacts of climate change on the 3 phases of flood disasters are summarized. The development of more resilient coastal communities that are better equipped to withstand the impacts of climate change and adapt to changing environmental conditions is crucial. To address coastal compound floods, researchers should focus on understanding trigging factor interactions, assessing economic and social risks, improving monitoring and emergency response systems, and promoting interdisciplinary research with data openness. These strategies will enable comprehensive and holistic management of coastal flood risks in the context of climate change.
VICTIMOLOGICAL ASSESSMENT OF SPONTANEOUS MEASURES ADAPTATION TO OLDER AGE
Authors: Будякова Т.П. , Пронина А.Н.
Published: November 2023

Цель исследования — обобщение и виктимологическая оценка спонтанных мер борьбы с виктимизацией и определение антивиктимных средств противодействия негативным факторам в пожилом возрасте. Было установлено, что в настоящее время не существует общепризнанных теоретически обоснованных позитивных стратегий функционирования личности в пожилом возрасте. Доминирует тенденция описания пожилого человека не как субъекта деятельности, а как пассивного объекта воздействия, что порождает геронтологический эйджизм и формирует у пожилого человека позицию жертвы. В эмпирической части исследования приняли участие 90 человек разного социального статуса — предпенсионеры, работающие и неработающие пенсионеры. Было выявлено, что антивиктимные свойства личности — антивиктимные установки, антивиктимная жизненная позиция и внутренний локус-контроль позволяют пожилому человеку успешно преодолевать виктимологические угрозы, возникающие в пожилом возрасте, сохраняя и защищая основные резервы своей личности — самоуважение и личное достоинство. Описаны основные обобщенные антивиктимные инструменты, создающие условия для реализации позитивных жизненных стратегий в пожилом возрасте, — комплексность, ритмизация жизни, компенсаторность и нетворкинг.

The aim of the study was to generalize and assess victimological spontaneous measures to combat victimization and to identify anti-victim means to counteract negative factors in old age. It was found that at present there are no generally recognized theoretically substantiated positive strategies for the functioning of the personality in old age. The dominant tendency is to describe an elderly person not as a subject of activity, but as a passive object of influence, which gives rise to gerontological ageism and forms the position of a victim in an elderly person. The empirical part of the study involved 90 people of different social status: prepensioners, working and non-working pensioners. It was found that anti-victim personality traits: anti-victim attitudes, anti-victim life position and internal locus of control allow an elderly person to successfully overcome victimological barriers that arise in old age, while maintaining and protecting the main reserve of his personality: self-esteem and personal dignity. The main generalized anti-victim tools that create conditions for the implementation of positive life strategies in old age are described: complexity, rhythmization of life, compensatory and networking.
Genetic diversity of multidrug resistant Salmonella enterica subsp. enterica serovar Brancaster isolated from chicken in Malaysia
Authors: Khoo Evie , Roslee Roseliza , Zakaria Zunita , Ahmad Nur Indah
Published: November 2023

Salmonella enterica subsp. enterica serovar Brancaster is a chicken-associated serovar that is increasingly reported in the Asian region, including Malaysia. The shortfall of conventional serovar identification for nomenclature alone is insufficient for studying the genetic and clonal relationships of Salmonella of the same serovar. Whereas DNA sequence-based typing method is useful to study the genetic diversity and relatedness of the highly diverse Salmonella. In this study, the genetic diversity, phenotypic antimicrobial resistance (AMR) profiles, and detection of selected AMR genes from ten representative Salmonella Brancaster isolates from chicken cloacal swabs and raw chicken meat were carried out. Based on multilocus sequence typing (MLST), all Salmonella Brancaster belonged to sequence type ST2133. Further analysis of the MLST sequencing data using concatenated nucleotide sequences of the seven housekeeping genes divided them into nine clusters, revealed heterogeneity and genetic diversity among the isolates. All isolates were multidrug-resistant (MDR), which confers resistance to three or more classes of antibiotics. Seven Salmonella Brancaster isolates exhibited phenotypic ACSSuT-type MDR profile, and two of them were also resistant towards ciprofloxacin. Salmonella Brancaster in the present study possessed at least one and up to six resistance genes, with the most prevalent being the ampicillin (blaTEM), tetracycline (tetA), chloramphenicol (floR), gentamicin (ant(3”)-Ia), streptomycin (strA), and sulfonamides (sul-2). Chickens are common reservoir for serovar Brancaster and the emergence, persistence, and dissemination of MDR Salmonella Brancaster possessed a public health risk. The authorities need to strengthen salmonellosis control management programme in poultry farms, abattoirs, and processing facilities.
TRANSFORMANDO O ENSINO DE QUÍMICA: EXPERIÊNCIAS COM O CONSTRUTIVISMO PIAGETIANO NO PIEX DO IFRO
Authors: CALIXTO COSTA VALÉRIA , CUSTODIO PEREIRA LEIVA
Published: November 2023

Chemistry is a fundamental discipline for understanding and solving real-world problems. However, many students in Adult Education (EJA) face challenges in learning and developing an interest in the subject. This article reports on an experience conducted within the scope of the Integrated Extension Project (PIEX) at the Federal Institute of Education, Science, and Technology of Rondônia (IFRO), focusing on a more playful and participatory approach to teaching Chemistry. Using active methodologies and concepts from Piagetian Constructivism, the project aimed to provide activities aimed at improving the learning of students, specifically those in Adult Education. Throughout the development of the project, it became evident that innovative, playful, and active approaches that involve cooperative work make the teaching of Chemistry more engaging and effective, leading to positive outcomes in student comprehension and engagement. Contents covered through methodologies that embraced Piagetian concepts achieved the proposed objectives.
Penambahan Kalsium Karbonat (CaCO3) pada Media Ir Tawar Budidaya Udang Vaname (Litopenaeus Vannamei)
Authors: Scabra Andre Rachmat , Cokrowati Nunik , Wahyudi Rahmat
Published: November 2023

Udang vaname merupakan biota yang mampu hidup pada salinitas yang luas, mulai dari air tawar hingga air laut. Pada kegiatan budidaya air tawar, keberadaan mineral menjadi faktor pembatas yang menyebabkan pertumbuhannya belum optimal. Berbagai penelitian, salah satunya adalah Scabra et al., (2021), menunjukkan bahwa udang vannamei yang dipelihara pada media air tawar dengan penambahan mineral berupa fosfor menunjukkan pertumbuhan yang lebih baik. Mineral lain yang  juga dibutuhkan untuk meningkatkan pertumbuhan udang adlaah kalsium. Oleh karena itu, penelitian ini bertujuan untuk mengevaluasi pengaruh penambahan CaCO3 dengan dosis yang berbeda terhadap pertumbuhan udang vannamei yang dipelihara pada media air tawar. Perlakuan pada penelitian adalah pemeliharaan udang pada media air laut (P1), pemeliharaan udang dengan media air tawar yang ditambahkan dengan kalsium (CaCO3) dengan dosis yang berbeda yaitu 0 ppm (P2), 40 ppm (P3), 80 ppm (P4),dan 120 ppm (P5). Data yang diperoleh dianalisa secara statistic dan deskriptif. Hasil penelitian menunjukkan bahwa nilai tingkat kelangsungan hidup (SR) udang tertinggi terjadi pada P1 sebesar 78%. Pada pemeliharaan dengan media  air tawar,  didapatkan nilai SR tertinggi pada P3 sebesar 68 %. Pertumbuhan tertinggi terjadi pada P1, yaitu sebesar 22,72 g. Pada media air tawar, pertumbuhan tertinggi terjadi pada P3, yaitu sebesar 14,74 g. Kesimpulan penelitian ini adalah Udang vannamei yang dipelihara pada media air laut (P1) menghasilkan performa yang lebih baik. Pada media air tawar, penambahan kalsium karbonat (CaCO3) dengan dosis 40 ppm (P3) diketahui dapat memberikan peningkatan nilai pertumbuhan dan kelangsungan hidup.
Pola Hubungan Salinitas, Oksigen Terlarut dan pH Terhadap Bakteri Vibrio sp. pada Lokasi Budidaya Udang (Litopenaeus vannamei) di Kabupaten Kolaka
Authors: Pariakan Arman , Rahim Rahim , Indrayani Indrayani
Published: November 2023

Keberlangsungan kegiatan budidaya udang vaname (L. vannamei) sangat bergantung pada kesehatan udang vaname yang dipelihara, kesehatan udang vaname sangat dipengaruhi oleh faktor biotik (bakteri sifat patogen) dan abiotik (stres lingkungan) yang secara bersama berpengaruh pada kelangsungan hidupnya. Penelitian ini bertujuan menganalisis hubungan dan sebaran variabel salinitas, oksigen terlarut, dan pH terhadap sebaran bakteri Vibrio sp. Hasil menunjukkan salinitas berpengaruh kuat terhadap keberadaan bakteri Vibrio sp. di wilayah tambak udang dengan nilai 0.008495, sedangkan pH dan oksigen terlarut tidak memberikan pengaruh yang kuat terhadap keberadaan bakteri Vibrio sp. dengan nilai masing-masing 0.470479 dan 0.663797. Oleh karena itu, disimpulkan bahwa pentingnya untuk mengontrol nilai salinitas agar tidak terlalu tinggi maupun rendah dengan nilai kisaran 18 – 20 ppt. kemudian walaupun pH dan oksigen terlarut tidak berpengaruh terhadap keberadaan bakteri, namun kedua parameter tersebut sangat mempengaruhi sistem imun udang vaname yang dapat memudahkan bakteri Vibrio sp. untuk berkembang dan menginfeksi.
Analisis Pengaruh Penambahan Pupuk Air Nira Terhadap Pertumbuhan Rumput Laut Caulerpa racemose dengan Kedalaman yang Berbeda
Authors: Kartika Baiq Nopi , Adam Moh. Awaluddin , Lestari Dewi Putri
Published: November 2023

Salah satu upaya untuk meningkatkan pertumbuhan Caulerpa racemosa serta dapat menunjang produksi tanpa ketergantung dengan musim adalah dengan cara pemupukan. Penelitian ini bertujuan untuk melakukan analisis penggunaan pupuk air nira pada budidaya rumput laut caulerpa racemosa dengan kedalaman yang berbeda. Penelitian dilaksanakan di Badan Riset Inovasi Nasional (BRIN) Malaka, Kecamatan Pemenang, Kabupaten Lombok utara, Nusa Tenggara Baratdan berlangsung pada bulan Oktober sampai dengan bulan Desember 2022. Bahan penelitian yang digunakan terdiri dari air laut, Air nira, Vitamin B1, dan Caulerpa racemose. Peralatan yang digunakan dalam penelitian ini antara lain: alat tulis, bak beton, batu, gunting, hp, keranjang plastik, penggaris, NO2 Profi Test, NO3 Profi Test, pH meter, tali ris, timbangan analitik, waring, dan water quality checker. Penelitian ini dilakukan dengan persiapan wadah, persiapan wadah untuk bibit, pemeliharaan bibit, pemberian pupuk air nira, pengamatan pertumbuhan, pengamatan kualitas air. Parameter penelitian yaitu: pengukuran berat, pengukuran panjang, ketahanan hidup, dan laju perumbuhan spesifik. Hasil uji kadar NPK pada air nira yang digunakan pada penelitian ini N total: 0,13 ppm, P Total: 0,002, dan N Total: 0,002. Hasil yang diperoleh rata-rata panjang tunas baru = 3,74-4,01 cm; rata-rata berat = 88,33 gr – 92,22 gr; laju pertumbuhan spesifik = -1,89 % - (-3,04 %); nilai ketahanan hidup = 65,67%-78%. Analisis data dengan menggunakan Uji One Way Anova dari ketiga perlakuan yaitu tidak berpengaruh nyata (p<0,05).   Penggunaan air nira sebagai pupuk organik cair pada budidaya caulerpa recemosa ini dapat menunjang pertumbuhan berat dan panjang dari caulerpa racemosa tetapi belum mampu meningkatkan ketahanan hidup dan laju pertumbuhan spesifik pada caulerpa racemosa.
РЕКЛАМНА ДІЯЛЬНІСТЬ ЯК ЗАСІБ ПІДВИЩЕННЯ РІВНЯ КОНКУРЕНТОСПРОМОЖНОСТІ ПІДПРИЄМСТВ
Authors: КОКОРЄВА О. В. , НАБОКА Р. М. , ВОСКРЕСЕНСЬКА О. Є.
Published: November 2023

У даній роботі розглянуто сутність рекламної діяльності та роль реклами як основного засобу забезпечення та підвищення рівня конкурентоспроможності підприємств. Визначено мету рекламної діяльності підприємств, а також основні ролі (маркетингова, комунікативна та економічна) які виконує рекламна діяльність. Визначено основні цілі та завдання рекламної діяльності. Проаналізовано основні етапи рекламної діяльності, а саме: вибір ефективної сегментації ринку, аналіз бюджету рекламної акції та постановка цілей, максимальна оптимізація внутрішніх процесів, оптимізація каналів та контенту для кожного етапу воронки, постійний моніторинг успішності та ефективності рекламних стратегій. Досліджено основні математичні моделі оцінки ефективності рекламної діяльності, а саме: статичні та динамічні. Досліджено переваги та недоліки статичних та динамічних моделей оцінки ефективності рекламної діяльності. Так, серед основних недоліків динамічних моделей, незважаючи на їх переваги, можна назвати: в них не враховуються властивості товару (послуги), стадії життєвого циклу, специфіка рекламних засобів які використовуються, насиченість товарів на ринку, інтенсивність попиту, наявність конкурентів та ін. Доведено, що на практиці більш актуальними та інформативними є динамічні моделі оцінки ефективності рекламної діяльності. Описано важливість прийняття управлінського рішення стосовно ведення рекламної діяльності на підприємстві або власними ресурсами підприємства або звернення до спеціалізованих рекламних кампаній, які беруть на себе повну відповідальність за розробку, впровадження та результати рекламної кампанії. Такі компанії мають перед рекламодавцями фінансові, юридичні та морально-етичні зобов’язання.
ВИКОРИСТАННЯ ТОВСТИХ ШАРІВ ПОРИСТОГО АНОДНОГО ОКИСЛУ КРЕМНІЮ ДЛЯ ТЕХНОЛОГІЇ ВИГОТОВЛЕННЯ ВАРИКАПІВ
Authors: ФРОЛОВ О. М. , СЄЛІВЕРСТОВА С. Р.
Published: November 2023

Варикапи або діоди зі змінною ємністю є одним з важливих елементів електронної техніки. Вони використовуються в сучасної радіоелектронної апаратурі різноманітного призначення. наприклад, в апаратурі зв'язку та апаратурі автоматичного керування для налаштування на необхідну частоту. Завдяки необхідності розробки нової апаратури, постійно підвищуються вимоги до параметрів і характеристик електронних компонентів, які використовують в цей апаратурі, у тому числі й до варикапів. Тому виготовлення варикапів з сучасними вимогами до сукупності параметрів ї характеристик є актуальною задачею. До параметрів та характеристик варикапів пред’являють різноманітні вимоги: напруга пробою, висока добротність, коефіцієнт перекриття по ємності, величина ємності, рівень зворотного струму. максимальний струм, стійкість до впливу статичної електрики. Отримання сукупності параметрів варикапів з сучасними вимогами до кожного параметру є досить складною задачею. Наприклад, при підвищенні напруги пробою добротність варикапа зменшується. Додатковими вимогами до технології виготовлення варикапів є вимоги до повторюваності параметрів та характеристик і вимоги до собівартості виготовлення. Для зменшення собівартості виготовлення потрібно зменшувати кількість технологічних операцій, в першу чергу кількість операцій фотолітографії. Використання методів само-суміщення технологічних шарів приводить як до зменшення кількості операцій фотолітографії, так й для поліпшення повторюваності параметрів та характеристик виробу. Варикапи виготовляють по різним технологіям в залежності від вимог до основних характеристик (напруга пробою або добротність, або коефіцієнт перекриття по ємності). Кожна конструкція або технологія варикапів має свої переваги та недоліки. Однак досить немає такої технології, яка б дозволяла створювати прилади з найкращою сукупністю усіх параметрів та характеристик при низької собівартості виготовлення. Метою роботи є створення технологічного процесу виготовлення варикапів, який дозволяє отримувати все параметри та характеристики виробів з сучасними вимогами до них при мінімальної собівартості виготовлення.
El traje nuevo de la ciudad. Visualidad, expansión comercial y modernización urbana en Bahía Blanca en las páginas de Panorama (Argentina, 1950-1960)
Authors: López Pascual Juliana
Published: November 2023

Durante las décadas centrales del siglo XX la localidad bonaerense de Bahía Blanca sufrió cambios fundamentales en su perfil económico, lo que generó la expansión y consolidación de los sectores sociales ligados a las actividades mercantiles, financieras y de servicios. El correlato material de este fenómeno tuvo como una de sus manifestaciones la transformación de la fisonomía urbana, en cuyo espacio céntrico proliferaron los rascacielos, las galerías y los nuevos entornos del comercio. Este artículo explora y reconstruye este proceso histórico a partir del análisis de la revista Panorama buscando dar cuenta de las representaciones elaboradas por dicha publicación y su intervención visual en los debates en torno al rol regional de la ciudad.
Prensa y propaganda en la Guerra del Pacífico: el Boletín de la Guerra (Arica - Tacna, diciembre 1879 – mayo 1880)
Authors: Ibarra Cifuentes Patricio Orlando
Published: November 2023

El artículo analiza el rol del periódico peruano Boletín de la Guerra, publicado en Arica y Tacna entre diciembre de 1879 y mayo de 1880 durante de la Guerra del Pacífico, tuvo como objetivo primordial informar a los soldados peruanos estacionados en la provincia de Moquegua, respecto del conflicto en curso desde la perspectiva del Ejército y del gobierno de Nicolás de Piérola. En sus 39 números, este medio de propaganda oficial utilizó una estrategia discursiva que exhortó a mantener la lucha, valorar el liderazgo de Piérola como Jefe de Estado y del contraalmirante Lizardo Montero al mando de las fuerzas peruanas de Tacna y Arica. Asimismo, desplegó una retórica antichilena, funcional a los intereses del Estado peruano y concordante con la opinión mayoritaria de la población no combatiente. A partir su revisión y análisis, se obtienen evidencias respecto de las principales características de un diario concebido para informar a una audiencia específica, que utilizó las prácticas y herramientas periodísticas del último cuarto del siglo XIX, informando desde el espacio geográfico donde se desarrollaron parte importante de las operaciones bélicas del enfrentamiento por el salitre de Antofagasta y Tarapacá.
Construindo alternativas freinetianas no ensino de avaliação educacional
Authors: Varani Adriana , Buscariolo Ana Flavia Valente Teixeira , Castro Viviani Domingos de
Published: November 2023

Neste artigo, nosso objetivo é apresentar e refletir sobre o trabalho pedagógico realizado na disciplina de Avaliação, do curso de Pedagogia, no ano de 2019, fundamentado em uma perspectiva da Pedagogia do Trabalho de Celestin Freinet. O desenvolvimento desse trabalho procurou superar a perspectiva de um ensino retórico e hierarquizado e, no campo da avaliação, buscou-se uma prática não centralizadora. Planejamos o curso pautado nos princípios de cooperação e autonomia de Freinet, através da inserção de instrumentos, como o plano de trabalho individual, que colaborou na autoavaliação, os projetos de estudo coletivo, os ateliês de trabalho e o livro da vida. Houve a parceria com professoras da educação básica que potencializaram o olhar sobre as práticas avaliativas. Como reflexão final, apontamos que as opções dessa experiência se aproximaram do isomorfismo pedagógico, à medida que oportunizamos formas de conhecer e aprender que podem se tornar referências na prática das futuras professoras.
Systematization and development of Samara Utility Systems LLC approaches to monitoring water delivery volumes to local water supply zones
Authors: Васьковский А.В. , Коневский Е.В. , Яковлев И.Е. , Горшкалев П.А.
Published: November 2023

Для снижения потерь воды в системе водоснабжения г. о. Самара специалистами ООО «Самарские коммунальные системы» на протяжении более 10 лет проводится мониторинг объемов подачи воды в обследуемые локальные зоны водоснабжения. За этот период опробованы различные подходы к данной работе, определены требования к наблюдаемым параметрам, найдены решения проблем, препятствующих эффективному контролю работы системы подачи и распределения воды. На основании полученного опыта выявлены основные сложности, мешающие проведению описанной работы: перебои в передаче данных в систему SCADA, наличие в базе данных некорректных значений; погрешности манометров в зданиях и малое число точек для измерения давления в локальных зонах водоснабжения; наличие оплачивающих услуги водоснабжения по нормативу абонентов, не имеющих приборов учета.

To reduce water losses in the Samara municipal water supply system the specialists of Samara Utility Systems LLC have been monitoring the volume of water delivered to the inspected local water supply zones for more than 10 years. During this period, various approaches to this work were tested; the requirements to the observed parameters were determined, and solutions were found to problems that impede the effective control of the operation of the water supply and distribution system. Based on the experience gained, the main difficulties that interfere with the described work have been identified: interruptions in data transfer to the SCADA system, incorrect values in the database; errors of pressure gauges in buildings and a small number of points for measuring pressure in the local water supply zones; consumers who pay for the water services by standards and do not have metering devices.
Tingkat Kepuasan Konsumen Cafe Bifi Coffee Kelurahan Pondang Kecamatan Amurang Timur Kabupaten Minahasa Selatan
Authors: Tambajong Romario , Benu Noortje Marselianie , Pangemanan Lyndon Reinhardt Jacob
Published: November 2023

This study aims to determine the level of customer satisfaction of Bifi Coffee, Pondang Village, East Amurang District, South Minahasa Regency. The research was conducted from May to July 2023. This study uses accidental sampling technique, namely determining the sample by chance, that is, anyone who happens to meet the researcher can be used as a sample. Determination of the sample using the Malhora formula, namely 5 multiplied by the number of variables or the number of questions available, with 13 question indicators, the sample taken was 65. The results showed that the attributes that need attention and are the top priority for improvement are quadrant I (ease of responding to requests and attractive place decoration). In the next attribute included in quadrant II (alertness of employees when customers visit, courtesy to customers, friendliness to customers, cleanliness and tidiness of the place, available equipment facilities and tidiness of service appearance). Attributes that fall into quadrant III (employee skills and abilities, timeliness in serving and ease of communication). Quadrant IV attributes (speed of the presentation process, readiness and willingness to serve customers). Based on the CSI calculation, the value of the level of customer satisfaction at Cafe Bifi Coffee, Pondang Village, East Amurang District, South Minahasa Regency reaches a value of 80.71%. This value is in the range 0.66-0.80%, thus overall consumers are satisfied with Cafe Bifi Coffee.
ANALISIS PERBANDINGAN DAYA LISTRIK SAAT SEBELUM DAN SESUDAH VARIASI KAPASITOR PADA BEBAN LISTRIK RUMAH TANGGA
Authors: Toba Febriani , Suoth Verna Albert , Kolibu Hesky Stevy , Mosey Handy Indra Regain , As’ari  , Pandara Dolfie Paulus
Published: November 2023

Kapasitor dapat digunakan sebagai alat yang dapat menyimpan energi listrik dalam bentuk medan magnet dengan mengumpulkan ketidakseimbangan internal dari muatan listrik. Pada penelitian ini dilakukan untuk mengukur data beban listrik tipe R (rumah tangga) dengan alat ukur power monitor 6 in 1 AC 20A yang terhubung langsung dengan MCB yang secara otomatis dapat mengukur frekuensi (Hz), tegangan (volt), arus (ampere), faktor daya (cos phi), daya (watt) dan jumlah kWh yang terpakai selama penggunaan beban listrik di rumah sehingga dari data pengukuran tersebut dapat dibandingkan nilai daya listrik yaitu daya aktif (watt), daya reaktif (VAR) dan daya semu (VA) serta dapat diketahui besarnya kompensasi daya reaktif (VAR). Hasilnya menunjukkan bahwa nilai pengurangan atau penghematan tertinggi pada daya aktif (W), daya semu (VA) dan daya reaktif (VAR) tertinggi terjadi pada variasi kapasitor 4µF yaitu nilai daya aktif (P) sebesar 331,4 watt, nilai daya semu (S) yaitu sebesar 353,6 VA dan nilai daya reaktif (Q) yaitu sebesar 185,5 VAR serta pada kompensasi daya reaktif (Qc) terlihat bahwa hasil kompensasi daya reaktif tertinggi setelah dilakukan perbaikan cos phi sebesar 0,97 terjadi pada kapasitor 10µF sebesar 105,0 VAR. Dengan nilai kompensasi Qc yang tinggi maka konsumen tidak terkena denda kVAR.
FORMULASI SEDIAAN KRIM DENGAN EKSTRAK ETANOL DAUN GEDI HIJAU (Abelmoschus manihot L.) TERHADAP Propionibacterium acnes
Authors: Saerang Missyeling Fransisca , Edy Hosea Jaya , Siampa Jainer Pasca
Published: November 2023

Daun Gedi Hijau (Abelmoschus manihot L.) memiliki potensi sebagai senyawa aktif dalam sediaan. Daun gedi hijau mengandung flavonoid, saponin, kuinon, dan tanin yang diketahui memiliki aktivitas antibakteri. Penelitian ini bertujuan untuk memformulasikan krim dengan kandungan ekstrak etanol daun gedi dengan konsentrasi 15% serta menguji efektivitasnya terhadap bakteri Propionibacterium acnes. Penelitian ini dilakukan dengan eksperimental laboratorium. Uji mutu sediaan krim dilakukan dengan Uji Organoleptis, Homogenitas, Daya Sebar, Daya Lekat, pH, dan Uji Sentrifugasi. Hasil penelitian yang dilakukan Uji mutu sediaan krim menunjukkan sediaan krim yang dibuat memenuhi persyaratan sediaan krim yang baik yakni memiliki penampilan visual yang baik, homogen, pH (6,3 ± 0,115) yang tidak menyebabkan iritasi maupun kulit bersisik, daya sebar 5,233 ± 0,153 cm, daya lekat 6,160 ± 0,447, dan tidak terjadi pemisahan fase pada uji sentrifugasi. Uji efektivitas terhadap Propionibacterium acnes menunjukkan hasil daya hambat sedang dengan diameter hambat 8,33 ± 1,527.
Building Healthy and Resilient Communities through Service Equity Project Evaluation
Authors: Porter Joanne , Jackson Megan , Cruz Naomi , Prokopiv Val
Published: November 2023

Working in partnership with the Deddick Valley Isolated Community Group and in collaboration with the Errinundra to Snowy Community Recovery Committee, CERC (formally CERG) evaluated and validated existing data and new information in support of an appropriate health service model for the Errinundra to Snowy District of Far East Gippsland.
Latrobe Regional Hospital : The Wellness Centre Evaluation 2021-2022
Authors: Porter Joanne , Simic Megan , Ghasemiardekani Maryam , Prokopiv Valerie
Published: November 2023

CERC (formally CERG) partnered with the Latrobe Regional Health (LRH) to evaluate their Staff Wellness Centre, designed to provide wellbeing support for staff during and post the COVID-19 pandemic. The organisation had identified an impact to staff wellness during the pandemic, responding with the Centre to help staff access health promotion services, mental and physical wellbeing services. CERC assisted with evaluating the service, demonstrating the impact the service has had on the overall wellbeing of staff.