bluuebunny/crossref_metadata_2025 huggingface dataset:
Characteristics and Significance of Natural Nanoparticles in the Groundwater of the Baotu Spring Area in Jinan, Shandong Province, Eastern China
Authors: Hu Caiping , Liu Rui , Zhang Peng , Wang Yaqin , Zuo Lei , Zhang Xiaoheng , Li Changsuo
Published: June 2024

Karst groundwater is a crucial water source, but it has faced significant environmental risks in recent years. The complexity of the groundwater system necessitates innovative approaches to studying karst groundwater. This paper focuses on the karst groundwater of the Baotu Spring area in Jinan. Using the nanoparticle tracking analysis instrument, it is observed that the collected groundwater contains many natural nanoparticles, with particle sizes mainly ranging from 76.3 to 621.8 nm and concentrations primarily between 0.31 and 5.0 × 105 Particles/L. The transmission electron microscope (TEM) is used to study the characteristics of naturally occurring nanoparticles in the karst groundwater. The results show that the karst groundwater mainly contains particles of Ca, Na, Fe, Al, Si, and other elements, which exist in granular and irregular forms. The size of individual particles varies from 40 to 600 nm, and they are mostly amorphous and monocrystalline. The characteristics of the particles suggest that the direct recharge area mainly receives infiltration from atmospheric precipitation, with minimal influence from human activities and agriculture. In contrast, the indirect recharge and discharge areas are more significantly affected by external environments, including domestic sewage, industrial wastewater discharge, and agricultural fertilizers. These findings also suggest that elements can be transported in particle form during water-rock interactions, potentially playing a significant role in the cycling of elements between water and rocks. The particles in the study area are situated in a relatively oxidized environment, suggesting that fracture and oxidation are the main processes for particle formation. Particles can effectively transport metallic elements in groundwater, offering fresh perspectives on the migration of these elements and acting as carriers for inorganic substances, thereby increasing their mobility in aquatic environments. Given the widespread presence of natural nanoparticles in the water cycle system, some stable nanoparticles can serve as new types of groundwater tracing agents during the groundwater migration process.
Synthesis of Fe-Loaded Biochar Obtained from Rape Straw for Enhanced Degradation of Emerging Contaminant Antibiotic Metronidazole
Authors: Zhang Dongyuan , Shi Lin , Dawolo Edwin Hena , Chen Bingfa , Ding Ning , Liu Hong
Published: June 2024

In this study, magnetic (Fe)-loaded biochar was successfully prepared by a simple impregnation pyrolysis method. Meanwhile, its degradation capability and mechanism for typical antibiotic metronidazole (MNZ) were systematically investigated under different conditions. The characterization of the synthesized material showed that the specific surface area, pore diameter, and pore volume changed significantly. Also, functional groups and metal element Fe were introduced on the surface of the biochar, leading to its better capability to activate peroxymonosulfate (PMS). The degradation experiments showed that the removal of MNZ in the Fe-BC/PMS system can reach up to 95.3% in 60 min under optimal conditions. Free-radical capture experiments showed that there were several active species of •OH, SO4•−, •O2−, and 1O2 present in the catalyst to synergistically degrade MNZ, among which SO4•− played a major role; it was also found that the material can be easily recycled and was still effective after several uses. Further, the main degradation pathways of MNZ include nitrohydroxylation, hydroxyethyl functional group deletion, carboxylation of the amino functional group of •OH, demethylation, oxidation, and carboxylation. It is obvious that the synthesized magnetic-loaded biochar, Fe-BC, generated from waste rape straw crops, shows high catalytic performance in pollutant degradation, providing an insight into the recycling potential of waste biomass in the catalytic field for pollutant removal.
CTM-YOLOv8n: A Lightweight Pedestrian Traffic-Sign Detection and Recognition Model with Advanced Optimization
Authors: Chen Qiang , Dai Zhongmou , Xu Yi , Gao Yuezhen
Published: June 2024

Traffic-sign detection and recognition (TSDR) is crucial to avoiding harm to pedestrians, especially children, from intelligent connected vehicles and has become a research hotspot. However, due to motion blurring, partial occlusion, and smaller sign sizes, pedestrian TSDR faces increasingly significant challenges. To overcome these difficulties, a CTM-YOLOv8n model is proposed based on the YOLOv8n model. With the aim of extracting spatial features more efficiently and making the network faster, the C2f Faster module is constructed to replace the C2f module in the head, which applies filters to only a few input channels while leaving the remaining ones untouched. To enhance small-sign detection, a tiny-object-detection (TOD) layer is designed and added to the first C2f layer in the backbone. Meanwhile, the seventh Conv layer, eighth C2f layer, and connected detection head are deleted to reduce the quantity of model parameters. Eventually, the original CIoU is replaced by the MPDIoU, which is better for training deep models. During experiments, the dataset is augmented, which contains the choice of categories ‘w55’ and ‘w57’ in the TT100K dataset and a collection of two types of traffic signs around the schools in Tianjin. Empirical results demonstrate the efficacy of our model, showing enhancements of 5.2% in precision, 10.8% in recall, 7.0% in F1 score, and 4.8% in mAP@0.50. However, the number of parameters is reduced to 0.89M, which is only 30% of the YOLOv8n model. Furthermore, the proposed CTM-YOLOv8n model shows superior performance when tested against other advanced TSDR models.
Transvaginal removal of rectal stromal tumor with Martius flap interposition: a feasible option for a large tumor at the anterior wall of the rectum
Authors: Suwanthanma Weerapat , Kittiwetsakun Ploybutsara , Phuwapraisirisan Samart , Hiranyatheb Pitichote
Published: June 2024

Neoadjuvant imatinib treatment, followed by complete transvaginal removal, presents a feasible option for large rectal gastrointestinal tumors located on the anterior wall of the rectum and protruding into the vagina. The use of Martius flap interposition is convenient and can be employed to prevent rectovaginal fistula.
Impacts of Harmful Algal Blooms (HABs) on Agriculture: A Short Communication
Authors: Sahoo Debabrata , Busari Ibrahim , Nix Heather , White Sarah
Published: June 2024

agriculture, which requires clean water, healthy soil, and adequate nutrients, is crucial to meet the growing demand for food and fiber. Over application of nutrients to meet demand has degraded surface water quality, leading to accelerated eutrophication. Cultural eutrophication is a process by which aquatic ecosystems such as ponds, lakes, and estuaries become so enriched with nutrients—primarily nitrogen and phosphorus—as to become unusable for safe consumption and ecological purposes. Eutrophication has intensified due to climate change. Increased temperatures, intense storms, and drought can drive the formation of eutrophic and hypereutrophic conditions. Hypereutrophication results in the rapid proliferation of algae and phytoplankton, resulting in algal blooms. Harmful algal blooms (HABs), including the proliferation of cyanobacteria, which can produce cyanotoxins such as microcystins and cylindrospermopsin, can also grow in hypereutrophic conditions. These toxins can detrimentally impact humans, wildlife, and agricultural systems (e.g., fish, livestock, and crops). Fish that ingest algal toxins may suffer from liver damage and oxidative stress, with varying effects depending on the type of fish, the amount of exposure, and the duration of exposure to toxins. Additionally, a few studies report livestock death after drinking water contaminated with byproducts of HABs such as microcystin, nodularin, cylindrospermopsin, anatoxin-a, guanitoxin, and saxitoxin. The available research on the effects of microcystin on crops, vegetables, and fruits consistently demonstrates their negative impact. This short communication article summarizes the literature published between 2012 and 2022 documenting the impact of microcystins on agricultural commodities, particularly livestock and various crops. Although awareness has increased, few publications have discussed microcystin-related livestock deaths in recent years. However, numerous global studies have highlighted the harmful effects of microcystins on crops, fruits, and vegetables. The researchers suggest that in cases where the levels of microcystin exceed the standards established by the World Health Organization, careful monitoring is needed. Human exposure to microcystin may occur through the consumption of livestock, crops, and vegetables contaminated by microcystins through drinking or irrigation. More research is needed to understand the fate and transport mechanisms of microcystins in various agricultural settings, including controlled, simulated, and field experiments.
Análise dos parâmetros físico-químicos e de rotulagem de águas de coco industrializadas produzidas no município de Barreiras-BA
Authors: Dourado Michelle Souza , Souza Bruna Peregrino de , Paranaguá Natyelle dos Santos , Lima Ítalo Abreu
Published: June 2024

A água de coco é a bebida obtida do coqueiro (Cocos nucifera L.), sendo um líquido isotônico cada vez mais consumido devido suas características organolépticas e nutricionais. Sabendo que a água de coco envasada deve ser submetida à adequação ao Padrão de Identidade e Qualidade (PIQ), fica perceptível a importância da realização de análises físico-químicas e de rotulagem do produto comercializado. Diante do exposto, o estudo objetiva realizar análises de águas de coco produzidas e comercializadas na cidade de Barreiras-BA em relação à composição físico-química e rotulagem. Com esse propósito, foram coletadas três marcas (M1, M2 e M3), sendo sucedidas as análises físico-químicas quanto à Instrução Normativa (IN) nº 39/2002 e a IN n° 09/2020, quanto ao pH, Sólidos Solúveis Totais, acidez titulável, cinzas e densidade absoluta. A análise de rotulagem foi sucedida pelo Decreto nº 6.871/2009 e IN n° 09/2020. Em relação às análises físico-químicas, todas as marcas apresentaram-se em conformidade, todavia, em relação a análise de rotulagem foram encontradas duas marcas (M2 e M3) que não possuíam informações obrigatórias, ficando perceptível que, mesmo havendo legislações específicas para a rotulagem da água de coco, ainda há marcas sendo comercializadas que não seguem os requisitos exigidos. Assim, fica evidente que a imposição da legislação por si só não se traduz em ação se não houver fiscalização atuante, destacando, portanto, a existência de uma brecha a ser suprida no âmbito das normativas relacionadas à comercialização do produto.
HAMBATAN PROSES AKSELERASI PENERBITAN SERTIFIKAT RECHTS CADASTER:PROGRAM PENDAFTARAN TANAH SISTEMATIS LENGKAP DI KABUPATEN BANDUNG
Authors: Ummah Alda jamilathul , Nurliawati Nita , Sodik Sudrajat Achmad , Alikha Novira
Published: June 2024

Land registration is seen as a way to provide legal certainty for the control and ownership of land parcels in accordance with Article 19 Paragraph (1) of the Basic Agrarian Law. In order to reduce the problems in the land sector, the government issued a program to facilitate the community in managing land title certificates. This study used a qualitative descriptive approach. The data obtained were analyzed using the theory of policy implementation model from Grindle (1980). The data sources come from primary data obtained through interviews, observations, and documentation studies as well as secondary data in the form of regulations related to the implementation of the complete systematic land registration program (PTSL). Data analysis techniques using fishbone diagrams. The results showed that the implementation of a complete systematic land registration program in Bandung Regency has been carried out in accordance with the stages of program implementation. However, in the implementation, there are still several inhibiting factors in human resources, public awareness, and completeness of application files. Recommendations to accelerate the issuance of land certificates by improving the competence of human resources and compiling internal technical guidelines (PTSL pocketbook).
Identifying Issues of Video Conferencing Tools for Teaching and Learning Using the PACT Framework
Authors: Ling Siew Eng , Chan Margaret Kit Yok , Khalid Md Saifuddin , Ling Siew Ching , Engkamat Adeline
Published: June 2024

The usage of video conferencing tools in teaching and learning has become a norm in today's higher educational institutions, recognized across various academic settings. The experience gained by most educators in using video conferencing tools for teaching during the COVID-19 pandemic could be leveraged to enhance these tools. The study aims to capture the current practices and explore the issues of using video conferencing for teaching and learning in Malaysian higher educational institutions. It focuses on three target groups with hands-on experience: academicians, students, and e-learning consultants or information technology (IT) support staff. Interview and focus group protocols were developed based on the four elements of the PACT framework: People (P), Activities (A), Contexts (C), and Technologies (T). Data were gathered through focus group discussions and in-depth interviews with the target groups. There were 24 participants involved in three focus group discussions and 28 participants in individual in-depth interviews. The PACT framework was employed to analyze the data, aiding in understanding the current situation, identifying areas for improvement, and envisioning future scenarios. Qualitative data were transcribed and categorized based on the four PACT elements. The study identified differences in the People element with four scenarios/practices on physical differences, six on psychological differences, three on mental models, and five on social differences.  A total of twenty differences were identified under the Activities element, with six on temporal aspects, four each on cooperation, complexity, and safety-critical aspects, and two on the nature of the content. Under the Context element, one scenario/practice was identified for organizational circumstances, five for social circumstances, and three for physical circumstances. In the Technology element, five scenarios/practices were identified: two related to the input part of technologies and one each for the output, communication, and content parts of technologies. From the scenarios/practices of the responses, a total of fifty-two issues related to using video conferencing for teaching and learning were identified. These findings will serve as the basis for ideation in developing innovative video conferencing toolkits for teaching and learning.
An Ethical Debate in the Philosophy of Information: Is It Possible to Combine or Reconcile Multiple Ethical Theories in a Common Perspective in Artificial Intelligence?
Authors: Kantar Nesibe
Published: June 2024

We live in a cyber-universe created by millions of data sets. This universe, where there are almost no time-space constraints, allows people to perform activities in the intercardinal direction in a comfort they could not imagine before. At the same time, this multicultural and global world (infosphere) is a source of ethical challenges. While living in our unique culture, is it possible to share common ethical values in our world, which is becoming more global with each passing day? Or is it getting more and more impossible in this complex cyber universe? This article draws attention to Bynum's Emerging Ethics theory, which carries the umbrella concept that has the potential to unite people around some common values in ethical practices developed for intelligent systems such as artificial intelligence, even if we have different ethical approaches. The main purpose of this article is how, although different approaches they are, theories based on the common nature of human beings can be combined for the same purpose and Thanks to the 'ethical family unity' structure they have created under the ethical umbrella, it is questioned how they will determine the ethical components that can be applied to intelligence systems like AI for the solution of the common problems of the information age.
Design Of Low Phase Drift Cmos Frequency Synthesisers
Authors:   ,   Cork Institute of Technology, Lahuec Cyril
Published: June 2024

"This thesis presents a methodology for the development of high performance video clock synthesisers that have high (2000) input to output clock multiplication ratios. The synthesisers are required to be compatible with standard CMOS technologies and they must exhibit very low drift between their input and output clocks. The methodology used borrows techniques established for RF synthesisers in the GHz range. In the RF domain there are significant constraints on spectral spread and because of this there has been significant interest in phase noise generated by intrinsic device noise. Simple and accurate models were developed that help understand the up and down conversion of this device noise into phase noise. Using these ideas all possible sources of noise in the video synthesiser were studied and optimised. A key result of this analysis was a redesign of the bias circuitry leading in itself to a performance improvement of a factor of eight over a conventional bias scheme. In RF applications there is usually a small multiplication ratio between input and output clocks. The bandwidths of the synthesiser loops are beyond the 1/f noise corner of the oscillators making the 1/f noise in the oscillator less important. The challenge with video clock synthesisers is that there is a large multiplication ratio and a low bandwidth requirement so this makes the 1/f noise in the synthesiser important. The 1/f noise causes a significant drift between input and output clocks. This drift is particularly relevant for video clocks that determine the sampling instants of the analogue video signal. The drift in these clocks leads to erroneous or missing video samples which causes bad or lost pixels in a displayed image. The clock synthesiser described in this thesis performed frequency multiplication of an input clock ranging from 15kHz to 5MHz with a programmable multiplication ratio of 4 to 1024. The circuit was implemented on a chip using a commercial 0.25pm CMOS process. A sample of measured drift in the optimised device is 0.42ns for a 48kHz reference and a multiplication ratio of 584. These measured drift results represent the lowest reported to date."
Multiple Model Control With Intelligent Switching To Ensure Robustness To Process Variations.
Authors:   ,   Cork Institute of Technology, Cunningham Peter
Published: June 2024

"One of the most popular approaches for dealing with process that undergo large variations with time, of late, is the multiple model approach. This method has considerable intuitive appeal and has received widespread dissemination in academia. Numerous successful simulations have been reported although few real-time results have been published. The principal contribution of this thesis is the application of the multiple model control scheme in real-time. A number of practical concepts that enable the use of multiple model control in real-time are discussed. Many of these issues arose when the multiple model control scheme was applied to a laboratory scale system, namely a flexible link, and do not appear to be well documented in the current literature. Firstly, the issue of computational burden is addressed and a recursive cost function is proposed that eliminates unnecessary computation. Secondly, the impact of an actuator non-linearity, namely a dead-zone, is investigated. Finally, the issue of disturbances and their effect on the multiple model control scheme is considered. Appropriate filtering can be incorporated to negate the effect of disturbances and the dead-zone non-linearity. Both simulations and real-time experiments are conducted to examine the effect of these solutions. Also, the closed-loop performance of the multiple model control scheme is analysed. The evaluation is performed on a flexible link which has inherent difficulties, namely, the system i) is integrating ii) has widely varying dynamics due to load changes iii) includes an actuator non-linearity (dead-zone) iv) is subjected to large deterministic disturbances. Identification, using the impulse response technique overcomes the first difficulty, while point ii) is surmounted through the identification of a number of local models and the design of a suitable supervisor. A pair of filters is introduced to ameliorate the effect of both dead-zones and deterministic disturbances. Finally, the performance of the multiple model control scheme is compared to the case where a single, robust controller is applied to the process and it is shown that for more difficult control problems the multiple model control approach outperforms the robust approach."
Development Of An Automated Thiopurine Methyltransferase (tpmt) Genotyping Assay
Authors:   ,   Cork Institute of Technology, Corcoran Mary
Published: June 2024

"Thiopurine methyltransferase (TPMT) is a cytosolic enzyme that catalyses the S- methylation of aromatic and sulphydryl compounds known as the thiopurines. These therapeutic agents are used in the treatment of acute lymphoblastic leukemia, autoimmune disorders, inflammatory bowel disease and organ transplant recipients. Erythrocyte TPMT activity is polymorphic and patients with intermediate or deficient TPMT are at significant risk for excessive toxicity after receiving ‘standard’ doses of thiopurine medications. The activity of TPMT is inherited as an autosomal co-dominant trait. Several mutations in the TPMT gene have been described that correlate with a low activity phenotype. Three mutations G238C, G460A and A719G account for the majority (96%) of the genetic polymorphisms found in all human populations studied to date. Significant ethnic differences in the frequency of these mutant alleles have been reported. Advances in DNA analysis have led to the development of molecular approaches to aid in the predictive diagnosis of TPMT deficiency and determine heterozygosity, a step that has immense benefit for the prognostic outcome. Using such assays a sample population (100) was assessed for the presence of the three most common TPMT mutations. In this work, the design of allele specific oligonucleotides for G460A and A719G permitted the development of Amplification Refractory Mutation Detection System (ARMS) assays for these mutations. A novel multiplex ARMS PCR assay was designed to simultaneously detect the three most prevalent mutations using two formats i.e. conventional agarose gel electrophoresis and GeneScan analysis. The results of these new assays were compared with those conventional molecular approaches and the results were found to be in exact correlation. Of the sample population, 93 were determined not to have any of the three point mutations. The most common polymorphism in this population was found to be at the A719G position and this was not as expected, however with changes in population demographics, shifts in mutation prevalence may occur. The multiplex ARMS strategy designed in this work provides a fast, reliable, easy to interpret and cost effective system to test simultaneously for the most prevalent point mutations. Such improvements will be necessary if molecular screening for TPMT polymorphisms is to be introduced into the clinical laboratory."
Brand Development By Small Firms
Authors:   ,   Cork Institute of Technology, Hackett Aoife
Published: June 2024

"The thesis explores the process of developing and managing brands. Particular emphasis is placed on how small enterprises gain recognition and acceptance for brands, the obstacles they encounter and how they surmount these obstacles. In a review of the literature, brand management strategies and the value of brand loyalty to a business were discussed. Brand equity and measurement and measures of brand equity were also reviewed. Interviews were conducted with large successful firms to discover arrangements and processes they employ to maintain market support, to extend the coverage or application of their brands to new product versions or new segments, and to ensure satisfactory returns for the brand owners. The intention was to compare the brand management process of large successful companies with the approaches and tools used by small enterprises who are at the early stages of establishing brands in the market. Interviews were conducted with small companies to discover their arrangements for establishing and popularising their brands and to learn what difficulties they encountered and what tactics and approaches they used to overcome them. Extant case studies of small firms who have established brands were interrogated to discover obstacles encountered and how they were overcome. Results from interviews with small firms showed branding efforts undertaken at the very beginning by small firms to be very simplistic. Not much thought has gone into brand values and brand positioning and branding consisted of a brand name and little else. Many small firms focus on company formation and production and it is only later that branding becomes more important. Methods of measuring the success of the brand and promotional activity undertaken are widely practiced by larger firms. However, small firms do measure success in very much detail and it is usually represented a percentage increase in sales. This emphasis on sales as a measure of success was surprisingly found in large firms with well established brands."
A Physical Activity Intervention Program
Authors:   ,   Institute of Technology Tralee, Ní­ Mhuircheartaigh Jackie
Published: June 2024

"Physical activity levels decline dramatically during adolescence, particularly among adolescent girls. Data is lacking on ways to tailor physical activity interventions to the needs and interests of young girls to prevent this rapid decline. This study aimed to design and implement a physical activity intervention program aimed at promoting increased participation in physical activity among adolescent girls. Forty-five transition year female students (mean age 15.65yrs) from two girls secondary schools participated in this study. Schools were assigned to intervention and control conditions. All students participated in focus groups, two questionnaires were utilised in the study and a random sample of students were asked to wear heart rate monitors. Students in the intervention group participated in an eight-week physical activity intervention program. Post intervention students in the intervention group were spending 21 mins less in light intensity activity, an additional 12mins in moderate activity and more time with heart rates above 120bpm. Students in the control group were spending more time (l0mins) in light activity, 15mins less in moderate activity and less time with heart rates within the target zone. These results however were not found to be statistically significant. Seventy-eight percent of the intervention group progressed at least one stage along the stage of change continuum (p"
Propofol-induced postoperative unconsciousness in hepatocellular carcinoma
Authors: Mohd Nor Mohammad Faiz Taqiyuddin , Mohd Azmi Nurul ‘Aifaa , Wan Muhd Shukeri Wan Fadzlina , Hasan Shamsul Kamalrujan
Published: June 2024

Although propofol is a commonly used medication for inducing general anaesthesia, it is not without side effects. In this case report, we present a patient with hepatocellular carcinoma who experienced postoperative unconsciousness following general anaesthesia induction using propofol. While this is a rare occurrence, it underscores the importance of remaining vigilant and understanding propofol’s pharmacokinetic properties. The drug can be redistributed from fat tissues into the systemic circulation, resulting in delayed recovery and potential adverse effects. We also discuss the possible impact of disease interactions, particularly hepatic impairment with possible CYP450 deficiency, on propofol metabolism. We stress the necessity of closely monitoring patients during anaesthesia induction and maintenance.
DEVELOPMENT OF A METHOD FOR IDENTIFYING BLIND SPOTS IN SOFTWARE TESTING
Authors:   Penza State University, Penza, Russia, Никулин А. О.
Published: June 2024

The article proposes a method that will help identify blind spots in software testing. Common problems in software testing and methods for their solution are described. A method to detect a problem is presented. The study also demonstrates an example of implementing this method.
TERRITORIAL PUBLIC SELF-GOVERNMENT ASSOCIATIONS: THE LEGAL BASIS OF ACTIVITY AND THE POTENTIAL OF SOCIAL CONSOLIDATION FOR TERRITORIAL DEVELOPMENT
Authors:   Surgut State University, Surgut, Russia, Гордеева И. В.
Published: June 2024

The article discusses the legal nature of associations of territorial public self-government and summarizes the practice of their organization and activity; examines the interaction of ssociations, public authorities, and local self-government authorities regarding the federal districts; identifies regional features of the establishment and activity of territorial public self-government associations; studies and considers legal acts regulating the activities of associations and their statutory documents, as well as directions and types of associations’ activities; and studies the court practice on disputes with associations. Territorial public self-govern ment associations play an important role in consolidating regional and local communities and involving them in solving problems of territorial development. The activities of regional territorial public self-government associations are systematized. The general approaches of territorial public self-government associations to the issues of community involvement in solving territorial development problems are presented, some of which can be used in model legal acts.
INTER-MUNICIPAL COOPERATION AS AN ELEMENT OF ESTABLISHING URBAN AGGLOMERATIONS
Authors:   Institute of Legislation and Comparative Law under the Government of the Russian Federation, Moscow, Russia, Лукманов И. Д.
Published: June 2024

The establishment of urban agglomerations, or large-scale complex territorial units, is one of the global trends. In modern democratic states, the practice of managing urban agglomerations successfully applies mechanisms of inter-municipal cooperation as the primary means of cooperation between municipalities. At the same time, he Russian Federation’s inter-municipal cooperation institution is underdeveloped, preventing municipalities from working together to solve local challenges by transferring powers and resources between municipalities of the urban agglomerations. In this regard, the article examines the prospects for the development of legal regulation of special forms of inter-municipal cooperation in urban agglomerations, which is distinguished by the transfer of powers to resolve local issues between municipalities within the agglomeration.
Researches and measurements of high-sensitive seismometers at experimental base «Obninsk»
Authors: Eltekov A.Yu. , Gerasimchuk O.A. , Utkin P.M. , Vinogradov Yu.A.
Published: June 2024

One of the main directions of new seismometers development for seismological monitoring systems is decreasing the instrumental noise level and nonlinearity distortions of the instrumental seismic channels. In accordance with modern requirements for high-sensitive seismological stations, the instrumental noise of seismometers should be at least three times less than local seismic background noise. By theoretical estimations modern high-sensitive seismometers have high level features: instrumental noise is lower than the minimal seismic background noise, nonlinearity factor is about 0,01% and less. However, the problem of experimental estimation of these parameters in conditions of ambient seismic backgrounds remains to be under consideration. This problem is especially important during development and production of new seismometers. The article presents some results of studying and measuring the instrumental noise level and nonlinearity factor in channels of broadband and short-period seismometers carried out at the experimental base “Obninsk”. To provide a high precision of measurements, the narrow-band digital filtration and spectrum-correlation data procession technique decreasing influence of the seismic background motion on the results uncertainty were used. Due to stable temperature and insulation in the gallery of 30-meter depth, a 20-30% uncertainty for instrumental noise characteristic measuring, which is 10-30 times lower than local seismic background noise, and 0.0004% uncertainty of nonlinearity factor measuring were achieved. The seismological and environmental conditions at the experimental base “Obninsk” of the Geophysical Survey of RAS provide necessary abilities for researche and measurement of instrumental noise characteristics and non-linear distortion factor of high-sensitive seismometers with satisfactory accuracy.
Income Analysis of Lawi-Lawi (Coulerpa sp) in Laikang Village,Mangarabombang Sub-District, Takalar District
Authors: Udin Risma , Fakhriyyah Sitti , Cangara Arie Syahruni
Published: June 2024

Seaweed has become a prima donna commodity for coastal communities, considering its positive contribution to the workforce and increasing income. Types of seaweed that have potential but have not been widely cultivated are Caulerpa sp. with the local names 'lawi-lawi' (Sulawesi) and 'Latoh' (Java). Lawi-lawi is widely known by the coastal community because several types of seaweed are used as daily natural food ingredients in South Sulawesi and are used for medical purposes because they contain antioxidants. Takalar Regency is the center of Lawi-lawi seaweed incubator, where development clusters are spread throughout the sub-district. One of the sub-districts that is the center for the development of Lawi-lawi seaweed is Mangarabombang District. some people in Laikang Village make a living as cultivators of lawi-lawi. Lawi-lawi cultivation activities in this village have been going on since 2011 and continue to grow until now. The purpose of this study was to determine the investment and income of lawi-lawi cultivators. The results showed that the average cost of cultivation of lawi-lawi (Caulerpa Sp) in Laikang Village, Mangarabombang District, Takalar Regency was IDR 8.397.500, the total annual income was IDR 8 .397.500 IDR. 147.600.000, total monthly income of  IDR. 16.132.427.
IMMUNOSTIMULANT EVALUATION OF NEEM LEAVES AGAINTS NON-SPECIFIC IMMUNE OF TILAPIA INFECTED BY A. hydrophila
Authors: R.A. Islamy  , V. Hasan  , N.B. Mamat  , Y. Kilawati  , Y. Maimunah
Published: June 2024

The aim of this study was to find out how neem leaf extract affected the immune systems of Tilapia (O. niloticus) that had A. hydrophila in their bodies. This included looking at its phytochemistry, antibacterial properties, bioactive compounds, and ability to make the immune system stronger. The extraction uses methanol. The phytochemical test of neem leaf extract includes flavonoids, alkaloids, tannins, saponins, and triterpenoids. We obtained the isolate A. hydrophila from the Jepara Brackish Water Aquaculture. Before use, we store these bacteria in Trypticase Soy Agar (TSA) media at 4 oC and Trypticase Soy Broth (TSB) subcultures. re use.       Test antibacterial using published We confirmed flavonoids, tannins, saponins, and triterpenoids through phytochemical tests. firmed.       The test against A. hydrophila bacteria found that 100% of the extract was the most effective concentration at stopping the growth of A. hydrophila bacteria. After feeding A. hydrophilla bacteria to Tilapia (O. niloticus), the extract of neem leaf (A. indica) significantly boosted the immune system. bserved.
Factores de cumplimiento de reportes de sostenibilidad corporativa: un estudio de datos de panel de empresas cotizadas en Perú
Authors: Hernández Pajares Julio , Llauce Ontaneda Yulliana , Mansilla Mahmud Macarena
Published: June 2024

Desde el año 2016, la Superintendencia del Mercado de Valores del Perú (SMV) ha establecido la obligatoriedad para las empresas cotizadas de publicar el reporte de sostenibilidad corporativa en el mercado de valores peruano como parte de las políticas de gobierno corporativo. Esta investigación tiene como objetivo analizar la evolución del nivel de cumplimiento de los requerimientos para la elaboración de los reportes de sostenibilidad exigidos por la SMV y analizar los determinantes corporativos para las empresas cotizadas en Perú. Este estudio, cuantitativo y explicativo, se realizó mediante un análisis de regresión lineal de datos de panel con efectos fijos para el periodo 2018-2022, con el fin de evaluar el efecto determinante de las variables independientes sobre el nivel de cumplimiento de los reportes de sostenibilidad corporativa. Los resultados muestran un aumento no sostenido en el nivel de cumplimiento de los informes de sostenibilidad hasta 2022, principalmente en el desempeño social. Para el modelo de regresión con efectos fijos sobre la variable año, los determinantes del nivel de cumplimiento de reporte de sostenibilidad son los siguientes: el tamaño de la empresa, la pertenencia a sectores con mayor impacto en la sostenibilidad y la elaboración voluntaria de reportes de sostenibilidad.
¿Impacta el sentimiento estadounidense de las tasas de interés en los fondos latinoamericanos negociados en bolsa (ETF)?
Authors: Valencia Herrera Humberto
Published: June 2024

En este artículo se analizó la dependencia de los rendimientos de fondos cotizados en bolsa (ETF) de seis países latinoamericanos respecto al sentimiento en relación con las tasas de interés y la reserva federal (FED) en las noticias de Estados Unidos (EE.UU.) durante el período de 2022 a 2023. Para cada uno de los fondos se usaron regresiones robustas con cero a dos rezagos para sentimientos positivos y negativos, y las rentabilidades previas. Se encontró que el sentimiento es estadísticamente significativo para algunos rezagos en los retornos de los ETF de Brasil, Chile y Perú, tanto en la moneda local como en el dólar estadounidense. El ETF Latin American 40 depende asimismo del sentimiento respecto a la moneda estadounidense. También hay un efecto de momento sobre los rendimientos en moneda estadounidense y un efecto de reversión media en moneda local para todos los ETF considerados. El modelo de datos de panel para los ETF de los países considerados con efectos aleatorios y dos rezagos muestra que todos los cambios en el sentimiento considerados son estadísticamente significativos para los rendimientos, excepto el cambio en el sentimiento positivo sin rezagos.
The Role of Certain Knowledge Management Processes in Improving Environmental Sustainability: An Exploratory Study of the Opinions of a Sample of Employees in the Iron and Steel Company in Mosul
Authors: Al-Hayali Iman Ali , Sultan Walaa Hazem , Al-Hayali Younis Ghazi
Published: June 2024

The research aims to determine the relationship between some knowledge management processes, how to apply and invest them properly, and what is their active role in improving environmental sustainability. The needs of the individual and society The goal of sustainable development is to develop business by meeting the needs of the present without compromising the ability of future generations, as the world faces the danger of environmental degradation, so development needs must not be abandoned and operations aimed at achieving sustainability must be conducted Environmental in business and its development, for example, how to recycle and others while preserving the environment because it is part of a multidimensional perspective related to economic, cultural and health aspects. This type of sustainability creates a safe and beautiful environment that seeks to reduce environmental impacts that have a role in the movement towards sustainable development by finding solutions to environmental problems. Organizations should consider a set of procedures and policies related to regular management and continuous improvement of environmental performance, and the analytical descriptive approach was relied upon In the completion of the research, a questionnaire was designed on a sample of (60) individuals working in the iron and steel company, and the data was analyzed through statistical programs using the program (spss) and access to the results. In light of it, the research presented a set of proposals for the field under study.
Sobrepeso-obesidad como factor protector de mortalidad en pacientes con shock séptico
Authors: Guerra Carbonell Damaris , Guzmán Ventura Wilmer
Published: June 2024

Objetivo: Determinar si el sobrepeso-obesidad es un factor protector para la mortalidad a los 30 d.as en pacientes con shock s.ptico. Materiales y métodos: Se analiz. una cohorte retrospectiva de 244 pacientes hospitalizados en la Unidad de Cuidados Intensivos del Hospital V.ctor Lazarte Echegaray de Trujillo del 2019 al 2023. El factor protector evaluado (grupo expuesto) fue el sobrepeso-obesidad, comparados con (grupo no expuesto) pacientes con IMC normal; el resultado fue mortalidad por todas las causas a 30 d.as de hospitalizaci.n. Se utiliz. el an.lisis bivariado mediante la prueba Chi cuadrado considerando asociaci.n significativa si valor p<0,05, y se determin. el riesgo relativo (RR) con intervalos de confianza (IC) al 95%. Se utiliz. el an.lisis de regresi.n log.stica para determinar asociaci.n entre variables significativas del an.lisis bivariado. Resultados: Hubo 122 pacientes con sobrepeso-obesidad, fallecieron 88 (72,1%) y 122 pacientes con IMC normal, fallecieron 49 (40,2%) (p< 0,01). En el an.lisis bivariado los factores asociados con mortalidad fueron sobrepeso-obesidad (RR 1,796; IC 95% 1,408-2,290), uso de ventilaci.n mec.nica (RR 1,268; IC 95% 0,999-1,611), puntaje SOFA ≥7 (RR 2,844; IC 95% 2,048-3,950) y puntaje APACHE II ≥20 (RR 1,656; IC 95% 1,302-2,107) En el an.lisis multivariado, los factores relacionados con mortalidad fueron: el uso de ventilaci.n mec.nica (RR 2,098; IC 95% 1,035-4,253), el puntaje SOFA ≥7 (RR 3,230; IC 95% 1,520-6,864) y el puntaje APACHE II ≥20 (RR 2,378; IC 95% 1,312-4,310). Conclusiones: El sobrepeso-obesidad no es un factor protector para mortalidad en pacientes con shock s.ptico.
Actinomicosis pulmonar en un paciente con lupus eritematoso sistémico
Authors: Espino Graña Carlo André , Sánchez Morillos Daniel , Yanac Sosa Vanessa Elizabeth
Published: June 2024

La actinomicosis es una enfermedad infecciosa granulomatosa, rara, causada por bacterias de especies Actinomyces. Estas bacterias son colonizadores de la cavidad oral, del tracto gastrointestinal y del aparato genital femenino. La manifestación clínica más frecuente es la forma cervicofacial. Sin embargo, puede afectar cualquier órgano del cuerpo. El diagnóstico de la infección constituye un reto, ya que los cultivos o hallazgos de la bacteria son poco frecuentes. Presentamos el caso de un paciente varón con lupus eritematoso sistémico, en tratamiento inmunosupresor con corticoides y ciclofosfamida por reagudización de nefritis lúpica. El paciente manifiesta tos con expectoración purulenta, disnea, baja de peso y episodios de hemoptisis. Estudios de tomografía mostraron múltiples cavidades en ambos pulmones; el paciente fue sometido a bronscoscopia y lavado broncoalveeolar para realizar la toma de muestras. Los resultados de cultivos fueron positivos a Pseudomona aeruginosa. El estudio de citología mostró imágenes de gránulos de azufre compatible con actinomicosis. El paciente recibió tratamiento con cefepima, seguido con amoxicilina/ clavulánico, presentando una mejoría de los síntomas. La actinomicosis es una enfermedad infecciosa rara, con manifestaciones clínicas variadas. La actinomicosis pulmonar presenta manifestaciones clínicas y radiológicas inespecíficas, lo que constituye un reto diagnóstico. Se debe considerar esta enfermedad en pacientes con inmunosupresión para un diagnóstico precoz y mejorar el pronóstico.
La cortesía profesional y la ética médica
Authors: Paico Vílchez Emiliano
Published: June 2024

En este artículo se pone de manifiesto la conducta de algunos médicos jóvenes frente a una situación muy particular y simple como es la cortesía profesional por la consulta a otros colegas o a sus familiares directos, que han necesitado de sus servicios. Así mismo, se hace un llamado a los médicos que están inmersos en la educación y formación de futuros médicos, y a los directivos del Colegio Médico del Perú, para que desde sus respectivas tribunas incentiven a cultivar y divulgar las normas éticas y deontológicas que rigen nuestra noble profesión para que las cumplan con decoro y dignidad.
Sevilla Jiménez, Cristóbal. Job. Madrid: BAC, 202
Authors: Garijo Serrano José Alberto
Published: June 2024

Recensión: Sevilla Jiménez, Cristóbal. Job. Madrid: BAC, 202
Béjar, Serafín. Cristología y donación. Ha aparecido la gracia de Dios. Maliaño: Sal Terra
Authors: García Martínez Francisco
Published: June 2024

Recensión Béjar, Serafín. Cristología y donación. Ha aparecido la gracia de Dios.
Maliaño: Sal Terrae, 2024, 383 pp. ISBN: 978-84-293-3194-3
Estévez López, Elisa (ed.). Vulnerabilidad. Miradas desde la teología, la espiritualidad y la educación. Salamanca: Universidad Pontificia de Sala- manca, 2023
Authors: López Luján Diego
Published: June 2024

Recensión: Estévez López, Elisa (ed.). Vulnerabilidad. Miradas desde la teología, la
espiritualidad y la educación. Salamanca: Universidad Pontificia de Sala-
manca, 2023
Investigation of the possibility investigation of identical results obtaining at different measurement methods by using coordinate measuring machines
Authors:   Iskenderzade E.B. Ahmedli-Davudova SH.V.
Published: June 2024

The problem of determining the conditions for achieving identical measurement results by using coordinate measuring machines and various measurement methods provided for by ISO 15530 is formulated and solved. A quadratic criterion to assess the degree of measurement results similarityby using two different methods is proposed. A connection function has been introduced between the difference in the statements obtained by the two methods and the geometric sum of the corresponding uncertainties in the measurement results. It is determined, that when a certain restrictive condition is imposed on the introduced function, the minimum value of the differences sum in the measurement results is achieved in the presence of a quadratic relationship between the specified difference and the geometric sum of the corresponding uncertainties.

Keywords
coordinate measuring machine, error, optimization, measurements, calibration Ori
Research of the effectiveness of internal grinding with varied grain-size wheels
Authors:   Guseynov G.A. Bagirov S.A.
Published: June 2024

The grinding of holes using technological primitives with characteristic changes in the abrasive effect on the surface being processed is considered. Equations for changing the number of active grains in technological primitives are obtained. A process is developed for internal grinding with wheels of different grain sizes, which ensures high grinding effectiveness by combining elements of rough, finishing and fine processing in one technological transition.
Keywords:internal grinding, technological primitive, abrasive grain, grinding wheel, grain size
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