bluuebunny/crossref_metadata_2025 huggingface dataset:
Two approximation results for divergence free measures
Authors: Goodman Jesse , Hernandez Felipe , Spector Daniel
Published: July 2024

In this paper, we prove two approximation results for divergence free measures. The first is a form of an assertion of J. Bourgain and H. Brezis concerning the approximation of solenoidal charges in the strict topology: Given

F \in M_{b}(\mathbb{R}^{d};\mathbb{R}^{d})

such that

\operatorname*{div}F=0

in the sense of distributions, there exist oriented

C^{1}

loops

\Gamma_{i,l}

with associated measures

\mu_{\Gamma_{i,l}}

such that

\begin{align*}F= \lim_{l \to \infty}\frac{\|F\|_{M_b(\mathbb{R}^d;\mathbb{R}^d)}}{n_{l} \cdot l}\sum_{i=1}^{n_l}\mu_{\Gamma_{i,l}}\end{align*}

weakly-star in the sense of measures and

\begin{align*}\lim_{l \to \infty}\frac{1}{n_{l} \cdot l}\sum_{i=1}^{n_l}\|\mu_{\Gamma_{i,l}}\|_{M_b(\mathbb{R}^d;\mathbb{R}^d)}= 1.\end{align*}

The second, which is an almost immediate consequence of the first, is that smooth compactly supported functions are dense in

\{ F \in M_{b}(\mathbb{R}^{d};\mathbb{R}^{d}): \operatorname*{div}F=0 \}

with respect to the strict topology.
Almost $\iota$-complexes as immersed curves
Authors: Rostovtsev Daniel
Published: July 2024

This paper uses immersed curves to study homology 3-spheres and their corresponding almost

\iota

-complexes. A new proof of the classification of almost

\iota

-complexes is given using a geometric argument. This is then used to reprove the existence of an infinite rank summand in the homology cobordism group,

\Theta_{\mathbb{Z}}^{3}

. This paper further demonstrates a new integer homomorphism from the homology cobordism group,

P_{\omega}: \Theta_{\mathbb{Z}}^{3} \rightarrow \mathbb{Z}

, conjectured by Dai, Hom, Stoffregen, and Truong. The application of immersed curves to the study of almost

\iota

-complexes admits several streamlined proofs and could inspire applications to similar problems.
$L^{p}$ improving properties and maximal estimates for certain multilinear averaging operators
Authors: Cho Chu-hee , Lee Jin Bong , Shuin Kalachand
Published: July 2024

In this article we focus on

L^{p}

estimates for two types of multilinear lacunary maximal averages over hypersurfaces with curvature conditions. Moreover, we give a different proof for the bilinear lacunary spherical maximal functions. To obtain our results, we make use of the

L^{1}

-improving estimates of multilinear averaging operators. We also obtain

L^{p}

-improving estimates for certain multilinear averages by means of the nonlinear Brascamp–Lieb inequality.
Landing Gear Shock Strut Bearing Selection
Authors:   A-5B Gears, Struts and Couplings Committee
Published: July 2024

This document defines the criteria used for the selection and placement of landing gear shock strut upper and lower bearings (see Figure 1).

Common problems associated with shock strut bearings are presented herein.
Biliary complications associated with weight loss, cholelithiasis and choledocholithiasis
Authors: Ribeiro Jr Marcelo A , Tebar Gabriela K , Niero Helena B , Pacheco Leticia S
Published: July 2024

Biliary complications like cholelithiasis and choledocholithiasis are more common in bariatric surgery patients due to obesity and rapid weight loss. Patients with a body mass index > 40 face an eightfold risk of developing cholelithiasis. Post-bariatric surgery, especially after laparoscopic Roux-en-Y gastric bypass (LRYGB), 30% of patients develop biliary disease due to rapid weight loss. The aim of this review is to analyze the main biliary complications that occur after bariatric surgery and its management. A review of the literature was conducted mainly from 2010 up to 2023 with regard to biliary complications associated with bariatric patients in SciELO, PubMed, and MEDLINE. Patients undergoing LRYGB have a higher incidence (14.5%) of symptomatic calculi post-surgery compared to those undergoing laparoscopic sleeve gastrectomy at 4.1%. Key biliary complications within 6 to 12 months post-surgery include: Cholelithiasis: 36%; Biliary colic/dyskinesia: 3.86%; Acute cholecystitis: 0.98%-18.1%; Chronic cholecystitis: 70.2%; Choledocholithiasis: 0.2%-5.7% and Pancreatitis: 0.46%-9.4%. Surgeons need to be aware of these complications and consider surgical treatments based on patient symptoms to enhance their quality of life.
Peasants’ perceptions on the uses and exploitation of Tetracarpidium conophorum (Mull. Arg.) Hutch & Dalziel in Cameroon
Authors: Demgne Bemmo Gaddielle Leslie , Anoumaa Mariette , Mbakop Nya Christelle , Kanmegne Gabriel
Published: July 2024

Tetracarpidium conophorum (Mull. Arg.) Hutch & Dalziel, a vine of the Euphorbiaceae family, is one of the numerous useful plant species of the tropical forests, and is still exploited in the wild. The objective of this study was to understand peasants’ perceptions on the provisioning ecosystem services and the cultivation practice of T. conophorum in Cameroon, with a view to determining the suitability of this species for participatory domestication. The methodological approach consisted of ethnobotanical surveys carried out among 252 people spread across three agroecological zones of Cameroon, as well as field observations. The results showed that 100% of respondents know the species that they exploit for three categories of use, with a broad consensus for food use (Cs = 1), followed by energy use (Cs = 0, 92) and medicinal use (Cs = 0.17). The exploitation of the species provides income which is considered very important by 69% of respondents. The most common harvesting method in the study areas is fruit picking, which is practiced by 100% of respondents. A regressive trend in the dynamics of the T. conophorum population is perceived by 44% of respondents. According to 92% of respondents, cultivation habits of the species are almost non-existent due to the difficulty they experience in regenerating it (51% of respondents), the long duration of the vegetative growth phase (36%) and the uncertainty of fruits production (13%). All the interviewees (100%) expressed their desire to adopt the cultivation of the species if appropriate methods for propagating productive individuals were provided to them. This study shows that T. conophorum is conducive to participatory domestication in Cameroon.
Phenotypic features depict variability in Clarias jaensis wild populations in Cameroon
Authors: Tonfack Djouatsa Juvenal , Meutchieye Félix , Zango Paul , Nana Towa Algrient , Ojong Nkongho Geneva , Wikondi Jeanne , Efole Ewoukem Thomas
Published: July 2024

This study was conducted to contribute to a better understanding of the phenotypic diversity of natural populations of Clarias jaensis in Cameroon, with the objective to harness the exploitation and conservation of this native catfish. A total of 269 native catfish (Clarias jaensis), including 139 males and 130 females, were sampled on 6 sites in Cameroon. One (1) phaneroptic observation, seventeen (17) biometric traits and four (4) meristic traits were evaluated. The main results showed that there are three colour patterns (brown, black and marbled) on the dorsal region and flanks in Clarias jaensis, with a predominance of brown (81.04%) and black (11.52%) patterns. The effect of sex on total weight (TW), snout length (SnL), prepelvic length (PPvL), total length (TL), standard length (SL), body depth (BD) and caudal peduncle depth (CPD) was significant (p<0.05). In general, biometric traits were significant (p<0.05) and positively correlated with total weight. The number of soft fin rays in dorsal fin (D) and anal fin rays (A) were negatively and weakly correlated with total weight (r=-0.02 and r=-0.04 respectively), while, the number of soft fin rays in pectoral fin was negatively and weakly correlated with total weight (r=0.13). The Principal Component Analysis (PCA) performed on all the biometric and meristic traits shows that the first two axes alone account for more than 50% of the total inertia. Hierarchical Ascending Classification (HAC) highlighted the existence of 3 morphotypes. The observed biodiversity suggests that the Clarias jaensis catfish is a natural genetic resource with the necessary variability to be exploited, though there is a need to develop population and habitats monitoring plan.
Impact of Rice Husk Ash Based-Geopolymer on Some Geotechnical Properties of Selected Residual Tropical Soils
Authors: Ayodele A.L. , Ajibola I.K. , Fajobi A.B.
Published: July 2024

There is usually a need to enhance the properties of soils with poor geotechnical properties encountered during construction. The  utilisation of Rice Husk Ash (RHA) - based geopolymer for improving some properties of two selected tropical soils was investigated. The  Atterberg’s limits (Liquid limit, LL and plastic limit, PL), compaction properties (maximum dry density, MDD and optimum moisture  content, OMC), California bearing ratio (CBR) and unconfined compression strength (UCS) of the un-stabilized and stabilized soils were  estimated. The soil samples were stabilized with alkali activated RHA varying from 3 to 15% (in 3% increment). Alkaline activation was  achieved by using a mixture of NaOH(aq) and Na2SiO3(aq) in ratio 1:2. Mineralogy and elemental analysis of the un-stabilized soils, RHA  and stabilized soils were obtained using X-Ray diffraction, X-Ray Fluorescence, EDS and SEM. The LL and PI of the stabilized soils  decreased with as much as 30 and 40%, respectively, while the CBR and UCS increased as much as 300% and 1500%, respectively. SEM and  EDS analysis of the treated soil showed the formation of crystalline hydration products. It is concluded that RHA based geopolymer  is a potential environmentally sustainable stabiliser in tropical climatic condition.
Evaluation of the anti-trypanosomal activity of Justicia secunda (Vahl) leaf in Trypanosoma brucei infected rats
Authors: Ukwueze CS , Ememe MU , Unigwe RC , Nwosu CG
Published: July 2024

The use of plants in traditional medicine is increasingly gaining ground in modern medicine because phytochemical components of most secondary metabolites can be used to treat a wide range of diseases. The anti-trypanosomal effects of ethanolic extracts of Justicia secunda leaf were investigated in albino rats. Thirty albino rats were used for the study and they were divided into six groups of five rats each. Group I was uninfected untreated (control), group II was infected untreated, group III was infected and treated with diminazene aceturate (DA), while groups IV, V and VI were infected and treated with J. secunda at 100mg/kg, 200mg/kg and 400mg/kg body weights, respectively. The parasite clearance time did not show any significant (p>0.05) difference in the extract-treated groups. However, relapse of infection occurred on day 28 post-treatment (PT) in 100mg/kg treated group and day 63 PT in 200mg/kg and 400mg/kg treated groups. The red cell parameters (PCV, Hb and RBC counts) were significantly (p<0.05) decreased in the infected groups, but improved in the groups treated with 200mg/kg and 400mg/kg to a level comparable to the uninfected untreated (control). The mean total white cell counts (TWBC) count was significantly (p<0.05) higher in the infected untreated group. The extract-treated groups did not show any variation (p>0.05) and were comparable with the uninfected untreated control. In conclusion, the ethanolic extract of J. secunda leaf exhibited dose-dependent anti-trypanosomal activity in T. brucei-infected rats and was able to ameliorate and conserve anaemia as shown in the improved haematological parameters and reduced risk of relapse.
Diffusion-Steered Algorithm for Improving Quality of Images Generated by Electrical Capacitance Tomography Measurement System
Authors: Nyotoka George , , Ally Nassor , Nombo Josiah
Published: July 2024

Electrical Capacitance Tomography (ECT) is a non-invasive, non-intrusive, radiation-free, robust, and cost-efficient measurement system that generates cross-sectional images of industrial operations by measuring differences in dielectric properties within a container. Despite its advantages, the poor quality of reconstructed images limits its applicability. Researchers have explored both non-iterative and iterative methods to address this issue, yet the resulting image quality remains insufficient for high-stakes applications where accurate decision-making is critical. This study proposes a novel algorithm that integrates the ECT model with a diffusion-steered image denoising functional, enhancing the quality of ECT reconstructed images beyond existing methods. Empirical comparisons show that the proposed algorithm outperforms state-of-the-art techniques such as Linear Back Projection and Projected Landweber, with Distribution Error (DE) and Correlation Coefficient (CC) improvements of 62% and 19%, respectively. Qualitative assessments further indicate the superior performance of the proposed algorithm in reconstructing high-quality images.
“Japan Heritage”: An exemplary project promoting local development trough Japanese cultural property
Authors: Kliczkowska Luiza
Published: July 2024

W artykule zaprezentowano pokrótce ewolucję legislacyjną Japonii, począwszy od wczesnych działań podejmowanych pod koniec XIX wieku po nowoczesne inicjatywy, takie jak inicjatywa Japan Heritage uruchomiona przez Agencję ds. Kultury w 2015 r., która odzwierciedla adaptacyjne i postępowe podejście Japończyków do ochrony zabytków. Zbadano również filozoficzne podstawy unikatowego spojrzenia Japończyków na autentyczność zabytków oraz wpływ tradycji i społeczności lokalnych na kształtowanie się japońskich dóbr kultury. Ponadto bardziej szczegółowo przedstawiono założenia dotyczące programu Japan Heritage, z uwzględnieniem jego lokalnego i globalnego wpływu. W podsumowaniu zwrócono uwagę na trwałe zaangażowanie Japonii w ochronę zabytków, co wiąże się także z dynamiczną interakcją tradycji, zaangażowania społeczności lokalnych i globalną wymianą kulturową.

The article presents a concise overview of Japan’s legislative evolution spans from early efforts in the late nineteenth century to modern initiatives like the Japan Heritage initiative launched by the Agency for Cultural Affairs in 2015, reflecting Japan’s adaptive and progressive approach to heritage preservation. The author also explores the philosophical foundations underlying Japan’s unique perspective on heritage authenticity and examines the influential role of tradition and local communities in shaping Japanese Cultural Properties. Furthermore, the Japan Heritage program is introduced, along with an analysis of its local and global impact. The author underscores Japan’s ongoing commitment to navigating heritage preservation within the dynamic interplay of tradition, local community engagement, and global cultural exchange.
The agency of the elderly women in indigenous responses to COVID-19-related mental health challenges among the Ndau of south-eastern Zimbabwe
Authors: Sipeyiye Macloud
Published: July 2024

Pandemic-related stressors are many and they are known to cause mental health challenges to people. Research has shown that women are disproportionately affected by the effects of pandemics on mental health than their male counterparts (Manyonganise, 2022). It has also shown that the elderly people are at risk of the pandemic-related mental health challenges because of their advanced age that undermines their resilience. There is not much literature on how the elderly women in some cultural contexts form a formidable resource in mobilizing emotional and practical resilience in times of pandemics. The available literature has not emphasized the fact that every society has its own conceptualization of pandemics and unique strategies of mobilizing resilience. This study, therefore, explores the agency of the elderly women in indigenous response initiatives to COVID-19-related impacts on mental health using the case of the Ndau people of south-eastern Zimbabwe. The study argues that
‘elderly people’ are not a homogeneous group. They are found in diverse cultural contexts that have a bearing on their response to pandemics. Therefore, there is need for sensitivity to religio-cultural contexts when dealing with the impacts of pandemics on communities’ mental health. The conceptualization, and strategies employed to mitigate the effects of pandemics on mental health are context specific. The African ecofeminist theory informs this empirical qualitative phenomenological study that takes an ethnographic research design. In-depth interviews were used to gather data. The Ndau people were chosen on the bases of the researcher’s cultural familiarity and, the non-homogenous character of the religio-cultures of African communities. The study makes a unique contribution to scholarship as it seeks to emphasize on the agency of the elderly women in building local communities’ resilience to pandemic-related mental health challenges, with less emphasis on the common narrative of their victimhood.
Actuación de enfermería ante el Síndrome de Sheehan en pacientes: una revisión bibliográfica
Authors: Espinoza Loja Patricia Alexandra
Published: July 2024

Se busca determinar la prevalencia y los factores de riesgo del Síndrome de Sheehan, así como explorar los abordajes terapéuticos, identificar complicaciones frecuentes y evaluar intervenciones de enfermería. Se efectuó una revisión de 50 artículos seleccionados por su relevancia. La prevalencia registrada es de 14 millones de casos de hemorragia posparto anualmente, con una incidencia global del Síndrome de Sheehan de 1 en 100,000 nacimientos. El embarazo y la subsiguiente hemorragia posparto se presentan como los principales factores precipitantes. El tratamiento eficaz requiere un reemplazo hormonal permanente. Las complicaciones clave incluyen la agalactia, la amenorrea y el hipopituitarismo. Las intervenciones de enfermería se centran en el manejo de los síntomas y la implementación del Proceso de Atención de Enfermería (PAE). La hemorragia posparto que excede los 1000 ml de pérdida sanguínea, con una reposición insuficiente de volumen, es un antecedente común en las pacientes con el síndrome de Sheehan.
Fruit peels as a vehicle for the availability of phenolic compounds with anti-influenza virus activity
Authors: Mercado Mercado Gilberto , Hernández de la Rosa Delia Libier
Published: July 2024

Influenza is a virus that infects the respiratory tract causing high mortality rates. There are about 100 strains of this virus, the most frequent being Rhinovirus and Coronavirus. Fruit peels are studied due to the amount of phenolic compounds (PC) with multiple positive health functions. There is evidence that PCs have great antiviral potential. The efficacy of the antiviral activity depends on the hydroxylation, methoxylation and alkylation of several components of the PC ring. Quercetin, gallic acid, epigallocatechin, catechin are some PCs that have been proven to have activity against influenza virus by blocking entry into host cells. Haloflavanes are synthetic flavonoids that have become of interest for their pharmacological properties as antiviral agents. These compounds aim to obtain improvements on those of natural, non-fluorinated flavonoids. The wide variety of mechanisms of action of PCs against viral infections could be applied as a natural pharmaceutical treatment strategy. The present review highlights the importance of fruit peels as a PC-enriched material with potential antiviral properties against influenza virus.
El Aeropuerto Internacional Felipe Ángeles y sus efectos hacia la formación de ciudadanía en Zumpango estado de México
Authors: Alejandre Gonzalo , Pineda Javier
Published: July 2024

Más allá de una connotación electoral la realidad de los ciudadanos se ha complejizado, la modernidad llegada a un espacio tradicional como el municipio de Zumpango estado de México, ubicado en la periferia de la Zona Metropolitana del Valle de México, connotado entre tradicional y urbano, vive una reconfiguración ciudadana, la cual es incidida por la mega obra del Aeropuerto internacional Felipe Ángeles. El objetivo fue analizar de manera comparada los datos oficiales del municipio, con datos recuperados de páginas de internet sobre nuevas asociaciones. El método comparativo es aquí el principal recurso metodológico para dar cuenta de un supuesto incremento de la politización ciudadana del fenómeno en que la población inmigrada al municipio ha jugado un papel clave. Los resultados son acordes con la hipótesis que supone la mayor activación política de la ciudadanía motivada por sus perspectivas políticas, en un espacio tradicional. Es significativo el año 2019 en este acontecimiento estudiado.
A história do turismo no azerbeijão: o passado e o futuro
Authors: Bilalov Bahadur
Published: July 2024

Durante as últimas quatro décadas, o turismo tomou-se uma parte importante da economia do Azerbaijão. O Azerbaijão está empreender uma política de expansão do turismo em conexão com o Sul do Caucasus, entregando serviços de turismo e registando um aumento do número de turistas estrangeiros. Hoje, o turismo é uma área prioritária não associada ao sector do petróleo da República de Azerbaijão. Esta pesquisa pretende identificar as razões para continuar a defender o desenvolvimento do turismo no Azerbaijão e tem por objectivo estudar as políticas do Estado e o envolvimento do sector privado nos últimos anos. Também analisa a estrutura de distribuição relacionada com o turismo para a avaliação da capacidade de resposta turística do Azerbaijão, em termos mais amplos.
Dimensão descritiva do planeamento estratégico
Authors: Gonçalves Fernandes António , Ribeiro Maria Isabel
Published: July 2024

É, fundamentalmente, a mesma óptica prescritiva que se encontra nas principais abordagens do fenómeno estratégico nas décadas de 50 e 80 do século passado. A partir de meados da década de 80 surgiram as escolas descritivas e com elas prevaleceram conceitos como a intenção estratégica, as competências centrais e o enfoque no mercado. A passagem das estratégias de desenhos, dos planos e/ou das posições precisas, tão características da dimensão prescritiva para visões vagas e perspectivas alargadas da dimensão descritiva surgiu com alguma naturalidade. Apesar disso, na actualidade, as visões que se pretendem estritamente descritivas são ainda prescritivas ou confundem as duas perspectivas.
Animação de personagem 3D: expressão facial
Authors: Miranda José Carlos
Published: July 2024

Durante os últimos anos, emergiu um interesse crescente em animação 3D de caracteres e expressões faciais: EsTe facto está relacionado com a nova participação de actores virtuais em televisão, cinema e indústrias de jogos interactivos, entre outros. Nestes casos, o objectivo principal é criar personagens virtuais que simulam o corpo e todos os detalhes de movimento do rosto, da forma mais realista possível. Neste artigo é efectuada uma revisão dos métodos mais usados na animação 3D. O método base do esqueleto é o mais utilizado para criar os movimentos principais, como o andar, por exemplo; os métodos base de mistura de formas são usados para criar deformações mais subtis. Em áreas que exigem um maior controlo e realismo, como alguns músculos do rosto, é possível adicionar camadas de deformação. Normalmente, curvas de NURBS ou grelhas de FFD são usadas para realçar algumas características do rosto. Os vários métodos têm vantagens e desvantagens. Assim, a melhor solução é combinar as diferentes técnicas.
Increasing the level of environmental friendliness of companies through decarbonisation
Authors: Marchenko Vladyslav , Bugayko Dmytro
Published: July 2024

In our time, the question of environmental friendliness of companies is regularly on the agenda of the world community. Today, it is highly relevant and concerns both ordinary citizens and all possible business representatives. With each new year, more and more people are beginning to pay attention to the problems related to environmental pollution and climate change. They are global, existential challenges for humanity, and therefore require high-quality ideas, fast, effective and truly complex counteractions that can improve the current state of affairs. The gradual deterioration of the ecological situation in the world is leading to a rise in interest to these problems and the search of possible variants that can minimise the negative anthropogenic impact on the environment. One of the most effective solutions today is the decarbonisation of companies' activity, and therefore, scientists and researchers need to continue to study and analyse this complex question, to look for possible prospects for their development in the direction of «green» initiatives.
GROUNDWATER OF VOJVODINA AND THEIR APPLICATIONS FOR IRRIGATION
Authors:   University “Union-Nikola Tesla” Belgrade, Serbia, Mrazovac Kurilić Sanja , Cibulić Violeta ,   University “Union-Nikola Tesla” Belgrade, Serbia
Published: July 2024

The paper presents the results of testing possibility of groundwater application for irrigation. The definition of groundwater source quality indicators is based on the criterion of their sustainable use for irrigation. The quality indicators on the basis of which the possibility of applying irrigation water is collectively assessed are: electrical conductivity, sodium ion concentration, sodium absorption coefficient, RSC, magnesium hazard and permeability index. The study of this problem was carried out on the underground waters of Vojvodina. Tests were carried out at 22 localities on the territory of Vojvodina in 2023. Based on the presented indicators, the state of groundwater quality of the first issue of Vojvodina for irrigation can be assessed as satisfactory in most cases.
ANALYSIS OD THE IMPLEMENTATION OF THE REVITALIZATION PROCESS OF THE VELIKI BAČKI CANAL
Authors:   Akademija strukovnih studija Beograd, Stefanović Dragoslav , Bašić Jasmina ,   Akademija strukovnih studija Beograd, Krsmanović Slavica ,   Akademija strukovnih studija Beograd, Milojković Gordana ,   Akademija strukovnih studija Beograd, Lečić Sara ,   Akademija strukovnih studija Beograd
Published: July 2024

The problem we face today is the wastewater generated by industrial facilities without installed purification systems. This wastewater or contaminated water has a significant impact on the environment and human health, as well as on the ecosystem. The focus of the work is on the amount and type of waste found in the Veliki Bački canal, and on solving the problem by classifying the resulting sludge and selecting a technological process that will properly convert the hazardous sludge into a safe/neutral form, either for disposal in a desingnated waste site or for beneficial use.
AQUATIC INVERTEBRATES AS KEY TOOL IN DEVELOPING METHODOLOGY AND IDENTIFICATION OF PRIORITY BARRIERS FOR REMOVAL
Authors:   Ss. Cyril and Methodius University in Skopje, Faculty of Sciences, North Macedonia, Slavevska-Stamenković Valentina , Hinić-Jordanovska Jelena ,   Ss. Cyril and Methodius University in Skopje, Faculty of Sciences, North Macedonia, Raković Maja ,   Institute for Biological Research “Siniša Stanković”, Belgrade, Serbia, Paunović Momir ,   Institute for Biological Research “Siniša Stanković”, Belgrade, Serbia
Published: July 2024

The aim of the study is to assess the effects of six weirs towards the macroinvertebrates and to establish methodology for selection of priority weirs for removal. Macroinvertebrates were collected from 12 sampling sites on the rivers Kriva Reka (2), Pcinja (8) and Kumanovska Reka (2) upstream and downstream of selected weirs. The degree of similarity of the macroinvertebrates above and below the weirs was used as ecological criteria to participate in determining which weirs could be subject to removal or could remain unchanged. Results showed that only weir below the city of Kriva Palanka could be subject to removal.
ECOLOGICAL POTENTIAL ASSESSMENT OF MARKOVAČKO LAKE – A NEW APPROACH IN BIOMONITORING
Authors:   University of Belgrade, Institute of Chemistry, Technology and Metallurgy,Serbia, Ćirić Miloš , Lemonnier Clarisse ,   Savoie-Mont Blanc University, France, Alric Benjamin ,   Savoie-Mont Blanc University, France, Dojčinović Biljana ,   University of Belgrade, Institute of Chemistry, Technology and Metallurgy,Serbia, Avdalović Jelena ,   University of Belgrade, Institute of Chemistry, Technology and Metallurgy,Serbia, Miletić Srđan ,   University of Belgrade, Institute of Chemistry, Technology and Metallurgy,Serbia, Petrović Vladimir ,   University of Belgrade, Institute of Chemistry, Technology and Metallurgy,Serbia, Milovanović Željka ,   University of Belgrade, Institute of Chemistry, Technology and Metallurgy,Serbia, Vidaković Danijela ,   University of Belgrade, Institute of Chemistry, Technology and Metallurgy,Serbia, Marković Aleksandra ,   University of Belgrade, Institute of Chemistry, Technology and Metallurgy,Serbia, Rimet Frédéric ,   Savoie-Mont Blanc University, France, Ballot Andreas ,   Norwegian Institute for Water Research – NIVA,
Published: July 2024

The advancement in molecular biology resulted in development of molecular methods in biomonitoring. Metabarcoding is a DNA based procedure that can supplement or event replace classical biomonitoring in the near future. We conducted a study of phytoplankton, an important biological quality element, in Markovačko lake aiming to compare morphological and metabarcoding approach in biomonitoring. In total, 105 sequences were obtained, but due to the incompletness of the reference library the metabarcoding taxonomic list was not comprehensive. Although, the metabarcoding results can not be currenty used for ecological status assessment in the Republic of Serbia, its application in biominitoring is promissing.
Komunikasi Pokdarwis dalam Pengimplementasian Program Pengembangan Pariwisata pada Masyarakat Cirendeu Cimahi Jawa Barat
Authors: Hamdani Ayu Tiara , Octavanny Vitha , Aruman Akhmad Edhy
Published: July 2024

Pokdarwis sebagai salah satu bagian dari pemangku kepentingan masyarakat, berperan strategis untuk pengembangan dan pengelolaan potensi wisata baik alam dan budaya pada daerah wisata untuk terciptanya tujuan wisata yang dapat memberikan manfaat khususnya di Desa Cireundeu Kota Cimahi Jawa Barat. Tujuan penelitian adalah untuk mengetahui bagaimana metode komunikasi yang dilakukan pokdarwis kepada masyarakat dan bagaimana hambatan komunikasi Pokdarwis kepada masyarakat dalam menjalankan program pengembangan pariwisata. Analisis ini menggunakan metode kualitatif dengan melakukan observasi dan wawancara mendalam kepada informan, yang terdiri dari ketua dan anggota pokdarwis dan masyarakat desa Cireundeu, kemudian melakukan analisis deskriptif. Hasil penelitian menyatakan sudah terjalinnya komunikasi antara ketua pokdarwis dan anggota pokdarwis, komunikasi pokdarwis dengan tokoh masyarakat, komunikasi pokdarwis langsung dengan masyarakat untuk pengimplementasian program kerja dengan berbagai pertemuan secara formal maupun informal melalui media teknologi daring maupun secara langsung, namun program dapat terimplementasikan secara menyeluruh apabila adanya umpan balik yang sesuai dengan arahan komunikator, namun hambatan terjadi tidak hanya dari sisi internal tetapi juga hambatan muncul dari sisi eksternal yang mengharuskan hambatan tersebut perlu dengan dukungan dari eksternal. Rekomendasi yang diberikan peneliti ialah proses komunikasi yang menjadi penghambat untuk pengimplementasian program perlu adanya campur tangan dari pihak eksternal dalam hal ini adalah pemerintah agar komunikasi masyarakat dengan pokdarwis dapat berjalan sesuai visi misi dari pokdarwis.
Pakar Strategi Komunikasi B2B Anugrah Pratama dalam Membangun Hubungan dengan Pelanggan
Authors: Ryo Adrian , Sinduwiatmo Kukuh
Published: July 2024

Penelitian fenomenologis ini menyelidiki efektivitas strategi komunikasi yang digunakan oleh Manajer Akun B2B dalam memperkuat hubungan dengan pelanggan. Melalui analisis kualitatif yang melibatkan wawancara, observasi, dan pemeriksaan dokumen, wawasan diperoleh dari dua Manajer Akun, seorang staf Kepuasan Pelanggan (CSAT), seorang Supervisor Manajer Akun, dan seorang pemimpin Komunikasi Pemasaran. Temuan mengungkap adopsi pendekatan persuasif kontemporer, menampilkan hadiah untuk pelanggan setia, acara jaringan, dan inisiatif peningkatan pengetahuan. Studi ini menekankan efektivitas strategi-strategi ini dalam memperkuat keterlibatan pelanggan dan memberikan implikasi praktis untuk meningkatkan metodologi pemasaran penjualan di lingkungan bisnis kontemporer.
Analisis Semiotik Perilaku Manusia dalam “Monster” oleh Seulgi dan Irene
Authors: Yuandita Yupi , Aesthetika NurNur Maghfirah
Published: July 2024

Studi ini menggunakan analisis semiotika Roland Barthes untuk mendekripsi bahasa visual dari video musik "Monster" oleh Seulgi dan Irene, mengkaji isyarat non-verbal seperti lirik, tarian, gaya, dan narasi. Melalui analisis ini, penelitian menjelaskan manifestasi perilaku manusia, mencakup sifat baik dan jahat, dan bagaimana ini dipengaruhi oleh stimulus eksternal, seperti pelanggaran yang dirasakan. Metode penelitian yang digunakan adalah penelitian deskriptif kualitatif yakni digunakan peneliti yang tertarik pada proses pemaknaan dan pemahaman yang diambil dari kata -kata atau gambar. Hasilnya adalah Musik video "Monster" karya Seulgi dan Irene menunjukkan perilaku manusia yang emosional dan egois dengan keinginan berkuasa, serta sisi baik dan buruk manusia, yang dapat dianalisis melalui audio, tata rias, tata busana, dan properti dalam video, meskipun proses analisisnya rumit karena visualisasi kreatif dan lirik berbahasa Korea.
Kelemahan Kontrak Pintar: Risiko Konsumen dalam Blockchain
Authors: Pratama Sandika Putra , Multazam Muhammad Tanzil
Published: July 2024

Studi ini mengeksplorasi penerapan prinsip klausul baku dalam kontrak pintar berbasis blockchain, khususnya pada platform Vyndao yang menggunakan blockchain Vexanium. Dengan kemajuan teknologi yang pesat, kontrak pintar telah memperkenalkan klausul baku, yang menimbulkan kekhawatiran mengenai perlindungan konsumen karena sifatnya yang sepihak. Penelitian ini menyelidiki bagaimana prinsip-prinsip ini diterapkan di Vyndao untuk melindungi konsumen dari potensi eksploitasi dalam layanan elektronik berbasis blockchain. Dengan menggunakan pendekatan legislatif dan tinjauan literatur dari lens.org dan Google Scholar, penelitian ini bertujuan untuk mengatasi kesenjangan pengetahuan terkait praktik perjanjian yang adil dalam kontrak pintar. Temuan menunjukkan bahwa Vyndao mengoperasikan tabungan dan pinjaman kripto secara terdesentralisasi, dengan semua aturan tercantum dalam kontrak pintar. Namun, ditemukan bahwa kontrak Vyndao kurang jelas, melanggar prinsip keadilan, kewajaran, dan keseimbangan, sehingga membuat perjanjian tersebut batal demi hukum karena kurangnya keterbukaan informasi. Hasil ini mengimplikasikan perlunya klausul baku yang transparan dan mudah dipahami dalam kontrak pintar untuk mematuhi Undang-Undang ITE dan memastikan perlindungan konsumen dalam transaksi elektronik.
Pengembangan Instrumen Penilaian Kemampuan Mengenal Huruf pada Anak Usia Dini di RA AL Wardah Kabupaten Pati
Authors: Fathonah Siti , Kusbiantari Dyah , Wirahno Dewi Nugrahastuti , Marfu’ah Sri , Sahrul Sahrul
Published: July 2024

Prosedur pengembangan dalam ini meningkatkan kemampuan mengenal huruf anak usia dini, lokasi penelitian di Kabupaten Pati tahun 2024 dengan jumlah subjek penelitan sebanyak 43 orang anak. Metedo pengumpulan data berupa observasi, wawancara, angket atau kuesioner, dokumentasi. Instrumen data pernyataan yang dibahas pada penelitian ini adalah yang berhubungan dengan konsep diri. Jenis penelitian ini merupakan penelitian pengembangan. Tujuan penelitian untuk mengembangan instrumen penilaian kemampuan mengenal hurf dan mengetahui validitas dan reliabilitas setelah diuji. Berdasarkan uji validitas dan reliabilitas pada tabel 2 Item Reliability dapat dilihat pada Item-rest Correlation bahwa dari butir 1 sampai butir 10 memiliki nilai sudah lebih dari 0,3 maka instrumen tersebut dapat dikatakan valid. Pada uji Scale Reliability Statistics tabel 1 dapat dilihat pada Cronbach's α memiliki nilai 0,856 > 0,6 artinya instrumen tersebut reliabel. hasil analisis data pada tabel Pearson Correlation bahwa dari butir 1 sampai butir 10 masih menempati pada kotak warna hijau dan tidak ada satupun butir yang berada pada kotak warna merah, hal ini menandakan bahwa instrumen penilaian kemampuan mengenal huruf masih berada pada kategori koefisien yang tinggi  sehingga dapat dinyatakan valid dan reliabel.
Simulasi Serangan Denial of Service (DoS) menggunakan Hping3 melalui Kali Linux
Authors: Haniyah Wanda , Hidayat Muhammad Caesar , Putra Zidan Febrian Indra , Pertama Veto Adi , Setiawan Aep
Published: July 2024

Perkembangan teknologi yang semakin maju semakin meningkat sampai saat ini, membuat protokol internet yang mencapai batas kerentanannya, membuat berbagai upaya penelitian yang bertujuan untuk merancang potensi terhadap generasi arsitektur internet. Walaupun ada beberapa perbedaan dalam ruang lingkupnya tetapi ada usaha yang dilakukan untuk meminimalisir keamanan dan privasi terhadap protokol internet. Ketahanan serangan untuk Denial of Service (DoS) yang cukup menggagu internet saat ini merupakan suatu masalah besar yang harus disikapi dalam mendesain arsitektur baru dan layak untuk mendapatkan perhatian penuh. Denial of Service (DoS) juga merupakan salah satu bentuk serang yang sering digunakan oleh para hacker, Denial of Service (DoS) sebuah serangan dengan berbagai serangan untuk menghabiskan resource yang ada dari target sehingga target tidak dapat mengatasi sebuah permintaan atau request.
VEGETATIVE COVER OF A MINE TAILINGS WITH BERMUDA GRASS (Cynodon dactylon L.) TO MITIGATE POLLUTION
Authors: Hernández-Acosta Elizabeth , Acevedo-Girón Emma Ángela , Robledo-Santoyo Edmundo , Castrellón-Montelongo Jorge Luis
Published: July 2024

The vegetative cover of mine tailings with grasses has environmental benefits and positive impacts on public health by improving air and water quality, as well as the overall well-being of surrounding communities. This study evaluated the ability of Cynodon dactylon L. grass in the cover of a mine tailing using three doses of vermicompost (Vlow [60 Mg ha-1], Vmedium [80 Mg ha-1], and Vhigh [100 Mg ha-1]) to improve the conditions of the site, which was physically and chemically characterized. The concentrations of lead (Pb), cadmium (Cd), nickel (Ni), and zinc (Zn) were determined before and during the experiment. Ninety-six and 202 days after planting (dap), grass was harvested to determine the concentrations of the potentially toxic elements (PTE) in the root and aerial sections. The production of dry matter and the growth of the grass were evaluated. Results showed that, before the experiment was established, the tailing had a low concentration of organic matter. After incorporating the vermicompost, an increase was observed in the concentrations of phosphorous (P), potassium (K), calcium (Ca), and magnesium (Mg). Ninety-six days after planting, in the treatment with the low dose of vermicompost, C. dactylon absorbed 202.13 mg Pb kg-1, 37.26 mg Ni kg-1, and 164.82 mg Zn kg-1 in its roots. Also at 96 dap, the highest PTE concentrations were found in the treatments with the highest dose of vermicompost. The greatest production of dry matter (231.55 kg ha-1 at 96 dap) and growth of the grass (9.7 cm, 73 dap) occurred in the treatment with the high dose of vermicompost, which highlights its efficiency in favoring its development and improving the conditions of the tailing. The absorption of the PTE by the grass highlights its contribution towards the reduction of dispersion and runoff of particles from tailings.
The Nexus Between Climate Change and Livelihoods in Arid and Semi-Arid (ASAL) Areas of Kenya: Evidence from the Literature
Authors: Nunow Prof. Abdirizak Arale ,   The author is an Associate Professor of Environmental Studies, Dept of Geography and Environmental studies,Moi University, P. O. Box 3900-30700, Eldoret, Kenya.
Published: July 2024

This study explored the complex relationship between climate change and livelihoods in the Arid and Semi-Arid Lands (ASALs) of Kenya, utilizing a comprehensive literature review to understand the multifaceted impacts of climate variability and change on these regions. ASAL areas covered approximately 89% of Kenya's land area and were home to about 36% of the population, who primarily depended on pastoralism and small-scale rain-fed agriculture for their livelihoods. The harsh climatic conditions characterized by low and erratic rainfall, high temperatures and frequent droughts exacerbated the vulnerability of these communities. The study used the literature rev8iew methodology to obtain the requisite information on the subject. The literature review method involved systematically searching, analyzing and synthesizing existing research and scholarly articles, focusing on the impacts of climate change, adaptive strategies and the role of policy in supporting resilience. The findings indicated significant variations in temperature and rainfall patterns in the area under discussion, leading to water scarcity, reduced agricultural productivity and increased food insecurity. Pastoralism, being the dominant livelihood source, faced challenges such as reduced pasture availability and increased livestock mortality. Small-scale farming was similarly affected by soil degradation, water scarcity and pest infestations, further limiting agricultural productivity. The study underscored the importance of integrating indigenous knowledge with modern practices to enhance resilience, highlighting the need for policies that promoted such integration and provided necessary training and resources to local communities. Effective implementation of climate policies required strengthening institutional capacities, ensuring adequate funding, and involving local communities in policy development. Additionally, international support needed to be streamlined to ensure easy access for ASAL communities, with simplified procedures and increased transparency enhancing the impact of international funding and technical assistance. This comprehensive approach to the study of this subject was considered important for achieving sustainable livelihoods and socio-economic development in Kenya's ASAL regions.
The Phenomenon of Mixing Language as a Communication Style among Teenagers
Authors: Yusiatie Yusiatie ,   Tama Jagakarsa University, Jakarta, Indonesia, Wijaya Sri Herwindya Baskara ,   Sebelas Maret University, Surakarta, Indonesia
Published: July 2024

The phenomenon of mixing language in teenagers is becoming a trend among the public. This language user combines two different languages in a clause sentence, namely Indonesian and English which are mixed in one sentence by using the structure of Indonesian as the mother tongue and some English words into it. This qualitative research uses phenomenological method in Alfred Schutz's thought. The subjects in this research are Jakarta teenagers, especially South Jakarta, aged 18-24 years old. In collecting data by conducting observations and interviews, while for data validity, source triangulation techniques are used. The results of this study explain that the motive factors behind South Jakarta teenagers are divided into two motives, namely the cause motive behind the action and the goal motive that focuses on future actions. It can be concluded that teenagers have meanings and motives with different forms of social action based on their respective experiences and goals.
Consumer Protection Law in the Digital Era
Authors: Andikatama Achmad Zulfa ,   Student, Master of Law, Faculty of Law, Diponegoro University, Semarang, Indonesia, Turisno Bambang Eko ,   Student, Master of Law, Faculty of Law, Diponegoro University, Semarang, Indonesia
Published: July 2024

In the context of e-commerce in the digital era, consumer protection is becoming increasingly important in order to address challenges such as data security, adaptive law enforcement, and the need for effective regulation. This article employs a normative legal research approach to analyze pertinent regulations pertaining to consumer protection in online transactions, including the Consumer Protection Law and the ITE Law in Indonesia. The primary challenges include a lack of consumer awareness of their rights in the context of digital transactions and the necessity for regulatory reform to keep pace with the rapid development of digital technology. This study also underscores the significance of enhanced consumer education and the necessity for continuous regulatory reform to guarantee adequate consumer protection in the context of an increasingly intricate e-commerce milieu.
Workplace Flexibility as Driver of Employees' Satisfaction: Evidence from Selected Local Governments in Delta State
Authors: Olusoji Arubayi Damaro ,   Department of Business Administration Faculty of Management Sciences Delta State University, Abraka, Nigeria, Ndubuisi Okoh ,   Department of Business Administration Faculty of Management Sciences Delta State University, Abraka, Nigeria
Published: July 2024

This study seeks to improve the understanding of the relationship between workplace flexibility and employees’ satisfaction in selected Local Government Councils in Delta State of Nigeria. Using the social exchange and agent-system models. this study investigated (a) if time flexibility affects employees’ satisfaction; and (b) if amount of work/workload flexibility affects employees’ satisfaction. In order to do this, questionnaire was administered to 140 employees of five (5) selected Local Government Councils in Delta State of Nigeria and the data obtained were analyzed using descriptive statistics(frequency counts, simple percentages, mean, standard deviation, minimum, maximum values and Karl Pearson correlation); post-estimation statistics (variance inflation factor and Breusch-Pagan and Cook-Weisberg), and inferential statistics(simple regression). The simple regression results indicated that workplace flexibility dimensions of time flexibility (F-ratio=14.21; p-value = 0.0000) and the amount of work/workload flexibility (F-ratio = 12.74; p-value = 0.0000) significantly and positively affect employees’ satisfaction. In line with the findings, it was recommended that the Local Government Councils’ management should strive towards ensuring a high level of flexibility in the workplace. As a matter of fact, there should be flexibilities in time and amounts of work/workload assigned to the employees in order to enhance their satisfaction
Analisis Kebutuhan LKPD Berbasis Etnomatematika untuk Meningkatkan Motivasi Belajar Peserta Didik
Authors: Destareiza Fitriasih Eka , . Nuryadi , . Supriyanti
Published: July 2024

Tujuan penelitian ini adalah untuk mengkaji kebutuhan LKPD (Lembar Kerja Peserta Didik) berbasis Etnomatematika untuk meningkatkan motivasi belajar matematika. Jenis penelitian yang digunakan yaitu deskriptif kualitatif. Subjek penelitian ini adalah  kelas VII disalah satu SMP Negeri di Yogyakarta. Teknik pengumpulan data menggunakan observasi, penyebaran angket, dan hasil ulangan yang menggunakan indikator motivasi belajar. Penelitian ini memiliki beberapa hasil. Pertama, 63% siswa mengalami kesulitan dalam memahami materi matematika. Kedua, 87% siswa tidak memiliki motivasi untuk belajar matematika. Ketiga, 73% siswa mengatakan bahkan media pembelajaran yang memudahkan belajar matematika adalah LKPD, 20% memilih buku sebagai media pembelajaran yang memudahkan belajar matematika dan 7% siswa memilih media pembelajaran lainnya. Serta diperoleh hasil 70% siswa tertarik jika bahan ajar bangun ruang dikemas dalam bentuk LKPD berbasis Etnomatematika untuk meningkatkan motivasi belajar. Selain itu, hasil ulangan menunjukan bahwa masih terdapat 87% siswa memperoleh nilai di bawah Kriteria Ketuntasan Minimal (KKM). Oleh karena itu pengembangan LKPD berbasis Etnomatematika dibutuhkan untuk meningkatkan motivasi belajar.