bluuebunny/crossref_metadata_2025 huggingface dataset:
Environmental risk assessment and chemical contamination with heavy metals in the sediments of three drains, south of Manzala lake (Egypt)
Authors: El-Amier Yasser , Haroun Samia , Mowafy Amr , Abd-Elwahed Mottia
Published: May 2022

ABSTRACT. Six heavy metals (Fe, Cd, Co, Cr, Ni, and Pb) were measured in all 15 sediment samples collected from three drains south of Manzala Lake (Egypt). The possible environmental risks of heavy metals in the sediment of the three drains were investigated using soil indices and risk assessment. Results showed that heavy metal contamination was found at the studied sites along the three drains, and pollution levels varied depending on metals and sites. The mean concentration (mgkg-1) ranked in the order of Fe (3950) ˃ Cd (22.36) ˃ Cr (21.15) ˃ Co (19.01) ˃ Pb (14.16) ˃ Ni (10.40) for Faraskour drain, Fe (5068) ˃ Cd (30.29) ˃ Co (18.97) ˃ Cr (16.90) ˃ Ni (15.03) ˃ Pb (12.16) for Al-Etaiwy drain and Fe (56.12) ˃ Cd (19.60) ˃ Co (17.15) ˃ Ni (14.88) ˃ Cr (10.10) ˃ Pb (10.03) for Ramsis drain. The mean ranges of enrichment factor for Cd, Co, Pb, Ni and Cr were 167.5-3858, 6.11-51.78, 4.38-31.20, 1.07-11.84 and 0.61-7.43, respectively. The average degree of contamination revealed that the majority of the sites had reached very high levels of pollution, with the exception of site 1, which had reached a moderate level of contamination. The ecological risk of heavy metals can be ranked as follows: Cd > Co > Pb > Ni > Cr, and the potential ecological risk index (PERI) were 931.0, 1173 and 818.5 in the Faraskour, Al-Etaiwy and Ramsis drains, respectively. To decrease pollution in these drains, it was determined that more effective restrictions on Cd and Co were needed. In general, the mean levels of Cr, Ni, and Pb in sediments from the three drains are within the European Union (EU) and Canadian Soil Quality Guidelines (CSQGD), Cd higher than EU and CSQGD, and Co higher than EU but lower than CSQGD.

 

KEY WORDS: Heavy metals, Pollution indices, Environmental risk assessment, Drains, Nile Delta

 

Bull. Chem. Soc. Ethiop. 2022, 36(2), 315-327.                                                              

DOI: https://dx.doi.org/10.4314/bcse.v36i2.6
Obsolete pesticide residue level analysis and toxicological risk evaluation from Hadya Zone dump site, Ethiopia
Authors: Nigatu Gedifew , Hussen Ahmed
Published: May 2022

ABSTRACT. Hadya Zone (HZ) obsolete pesticide dump site was selected for determinations of OCPs from soil and assessing the toxicological risks to environment and human health. Composite soil samples were collected and extracted using Soxhlet (SOX) extraction method and analyzed for p,p’-DDT, p,p’-DDE, p,p’-DDD, α-BHC, β-BHC, g-BHC, d-BHC, g-chlordane, α-chlordane, and endosulfan sulfate using GC-MS. The total average concentrations of SDDTs, SBHCs, chlordanes, endosulfans were 41.92, 5.91, 11.47, 0.44 ng/g, respectively. DDTs, chlordanes and BHCs were categorized as causing potential risks to the eco-environment exceeding the threshold value (2.5 ng/g) set by Netherlands’ soil quality standards. However, endosulfans residual concentrations were below the threshold value. Carcinogenic risk assessments to humans were evaluated using incremental lifetime cancer risks (ILCRs) via three exposure routes (ingestion, dermal contact; inhalation). The average ILCRs values were 2.54 x 10-8, 1.68 x 10-8, and 2.71 x 10-8 for the three age groups: childhood, adolescence, and adulthood, respectively. The result shows the cancer risk to humans from the soil matrix in the study site was acceptable. However, since the dumping site is at high elevation, there is high probability to be transported via runoff to different environmental matrices: river water, sediment and biota. Thus, if the residue analyses of all these environmental matrices are considered, the risk might be increasing.

 

KEY WORDS: Obsolete pesticide, Dump site, Toxicological risk assessment, OCPs

 

Bull. Chem. Soc. Ethiop. 2022, 36(2), 329-337.                                                               

DOI: https://dx.doi.org/10.4314/bcse.v36i2.7
Parametric improvement of hammer mill for bambara flour production using desirability optimization methodology
Authors: Ikechukwu I.F.
Published: May 2022

Characterization and optimization of hammer mill for bambara flour production which reduces drudgery, time loss and multiple milling associated with existing technologies for bambara nut milling operation was performed. Desirability function analysis and optimization technique was utilized to obtain the optimal result which revealed the process/operational parameters (factors) with significant influence on the machine as the bambara grains’ moisture content, number and speed of cross beaters. It also showed throughput and milling efficiency as its functional performance indicators. The number and speed of the cross beater and the bambara nut moisture content affect the particle size of the milled bambara flour directly. The optimal values of the number and speed of cross beaters and bambara nut moisture content were determined as 6, 1610.00rpm and 11.42% respectively which caused increase in capacity and efficiency of the machine.
Improvement of quality characteristics of an epoxy-based composite reinforced with Sisal (Agave Sissalana) plant fibre for wind turbine blade material using Taguchi grey relational analysis
Authors: Iliyasu I. , Yawas D.S. , Afolayan M.O. , Aku S.Y.
Published: May 2022

Natural fibres are possible substitutes for glass fibre in composite production because of their light weight, ease of production and biodegradability. The present study involves the use of Taguchi grey relational analysis to optimize the production process parameters of an epoxy based composite reinforced with sisal fibre. The process parameters optimized are Percentage by weight of the sisal reinforcement, curing temperature, post curing time and compounding pressure. A Taguchi L16 orthogonal array was designed and sixteen experimental runs were performed based on the designed experiments. Tensile strength and flexural modulus (stiffness) were recorded for each experiment based on the average responses computed from the Taguchi grey relational analysis. From the response table of the grey relational grades, the optimal set of parameters for enhanced tensile strength and flexural strength performance of the sisal-epoxy composite were identified to be 35% by weight of fibre, 1100C curing temperature, 1hr post curing time and 13MPa compounding pressure. An analysis of variance (ANOVA) was conducted to identify the predominant factor and established that percentage by weight W has the highest effect of 61 % on the GRG. The optimum composite material had the following values, Ultimate Tensile Strength 27.22 MPa, Flexural Strength 51.84 MPa. The DMA results of the material showed a glass transition temperature of 61.90C.
A critical review of contemporary issues related to DFIG
Authors: Aluu N.C. , Ashigwuike E.C.
Published: May 2022

The DFIG is a type of induction machine which has been serving extensively in the WEC system. Many researchers have worked on the DFIG and its integration to the grid system, proposed control schemes and designs for the DFIG. However, there have not been a comprehensive critical review on the contemporary issues related to the DFIG. This paper presents a critical review of the contemporary issues related to DFIG. The research findings of this paper are the issues related to the DFIG ranging from the unbalanced voltage dip which results to an induction of very large torque pulsations and DC ripples in the rotor circuit; the preferences and relativities on which control strategy is best for the DFIG considering the FOC and the DTC control schemes, and down to the LVRT issues. The contemporary issues relating to the DFIG operation and their effects on the DFIG operation are also discussed.
Development of a manual egusi (Citrulus Vulgaris) washing machine
Authors: Omale P. A. , Oyeniyi S.K. , Ojukwu F.C.
Published: May 2022

Egusi is an important oil seed plant used in the food industry. However, the washing of egusi seeds after harvest has been a major challenge to the egusi farmers in Nigeria. The washing of egusi seeds after harvest is locally done by the use of basket containing unwashed egusi seeds submerged inside water and washed with hand to remove the slime and dirt which is labour intensive and time consuming. A manual egusi (Citrulus Vulgaris) washing machine was developed to help egusi farmers in washing of egusi seeds after manual pod cracking and seeds scooping. The average length, width, thickness and sphericity of 100 egusi seeds were first determined to be 15 mm, 8.8 mm, 2.06 mm and 0.43 mm and used in the machine design. The machine was designed and fabricated using available materials and it consist of five major components which are; cylindrical drum, perforated drum, roller, water tank and frame with a capacity of 32.14kg/batch. The machine was evaluated to have 75.3% washing efficiency, 0.08% percentage loss, and 0.0% damaged egusi respectively.
Effects of untreated oil-palm fruit fibre reinforcements on the strength and durability properties of non-fired pressed mud blocks
Authors: Onodagu P. D. , Uzodinma F.C. , Aginam C.H.
Published: May 2022

This study investigated the effects of untreated oil palm-nut fibre reinforcements on the strength and durability properties of non-fired pressed mud blocks. Different proportions of untreated oil palm-nut fibre from 1% to 5% by weight of the blocks were incorporated into already characterized soil samples and used to produce blocks. Blocks containing 0% fibre were used as the control. The effects of the incorporated fibres were examined in terms of density, water absorption ratio, and compressive strength of the produced blocks. The water absorption of the blocks increased linearly with an increase in fibre content as the control exhibited the least water absorption of 7.9%. The density of the blocks decreased with an increase in fibre content. Block sample containing 5% fibre had the least density of 1644.44kg/m3 as compared to the control with density of 1866.66 kg/m3. The addition of untreated oil palm-nut fibre reinforcements to the block increased its compressive strength up to 3% fibre addition where the maximum strength (1.91N/mm2) was observed. Beyond 3% fibre addition, the compressive strength decreased. Results obtained indicate that untreated oil palm-nut fibre reinforced earth block is a sustainable building material. This study recommends 3% fibre addition to attain optimum strength results and dissuades the use of fibres to reinforce mud blocks in high humidity environments.
Comparative analysis of the combined effect of input parameters on heat input and heat affected zone in TIG welding
Authors: Uwoghiren F.O. , Erhunmwunse B.O.
Published: May 2022

The quality and integrity of welded joints is highly influenced by the optimal combination of the welding input parameters. Due to the rapidly changing scenario in the manufacturing industry, optimization of process parameters is essential for a manufacturing unit to respond effectively to the severe competitiveness and increasing demand for quality products in the market. An attempt is made to study the effect of heat input parameters properties of Tungsten Inert Gas (TIG) welding process. The application of the surface plot in the investigation of the combined effect of input parameters on heat input and heat affected zone was pursued in this study. The central composite design matrix was used to obtain data from sets of experiments. Mild steel coupons measuring 60mm x 40mm x 10mm were welded with tungsten inert gas welding process. This study developed a model using expert systems, such as Response Surface Methodology and Artificial Neural Network to optimize and predict weld heat input and heat affected zone from input parameter such as current, voltage and welding speed. With the data collected from twenty experimental runs in this study, the result from one Response Surface Methodology analysis shows that a current of 130.00Amps, voltage of 20.94V, speed of 0.48m/min will produce heat input of 0.64277Kj/mm and heat affected zone of 5.42078mm with a desirability of 0.962.
Male involvement in antenatal care in Agege local government area, Lagos state, Nigeria
Authors: Bamidele J. , Odeyemi K. , Sodeinde K.
Published: May 2022

Background: Male involvement in antenatal care (ANC) though beneficial remains a global challenge. This study aimed to assess male involvement in ANC among men in Agege Local Government Area of Lagos State Nigeria.Methods: A cross-sectional study, carried out between April and November 2017, among 420 men whose partners had at least one birth in the last 5 years, using interviewer-administered questionnaires. Male involvement was graded as good with minimum 50% score. Associations between male involvement and categorical variables were assessed using the chi-square test with the level of significance set at P < 0.05Results: Mean age of the respondents was 43.80 ± 11.42 years. Many (58.6%) had good involvement in antenatal care. Male involvement was statistically significant with age, educational status, occupation and income with p value of 0.004, 0.024, < 0.001and 0.04 respectively.Conclusion: Age, education, occupation and income were significantly associated with male involvement. Young males should be encouraged to pursue formal education and vocational opportunities.
Inhibition of lipid peroxidation and free radical scavenging activities of methanolic leaf extract of Psidium guajava
Authors: Fatoki J.O. , Kehinde S.A. , Adegoke A.A. , Faokunla O. , Atere T.G. , Olajide A.T.
Published: May 2022

Objectives: Studies have linked the generation of free radicals with the incidence of degenerative diseases. Antioxidants from plant origin have been proved to play a major role in mitigating against free radicals-induced oxidative damage. This study aimed at assessing the in-vitro and in-vivo antioxidant capability of Psidium guajava leafMethods: The leaves were collected and extracted with 70% methanol. Total phenolic, and flavonoids contents, 2,2-diphenyl-1-picrylhydrazyl and Hydroxyl radicals scavenging activities, and inhibition of lipid peroxidation potential of the extract were assessed. Furthermore, rats (n=21) randomized into three groups were exposed to 50, 150, and 250 mg/kg body weight of the extract for 30 days. Control animals (n=7) received corn oil, after which blood and liver were excised for antioxidant assay.Results: The extract is rich in phenolic and flavonoid compounds. It scavenged DPPH and hydroxyl radicals and inhibits lipid peroxidation in-vitro. In-vivo, it increased the activities of hepatic superoxide dismutase, catalase, glutathione peroxidase, and plasma paraoxonase, and the concentration of hepatic reduced glutathione and MDA.Conclusion: Psidium guajava leaf extract is a potential source of natural antioxidant compounds, capable of supplementing the body's antioxidant defense system.
Detection and identification of gastrointestinal parasites in dogs presented to veterinary clinics in Abeokuta, South-western Nigeria
Authors: Akande F.A. , Obisesan O.M. , Adeniji S.D. , Adelakun D.O.
Published: May 2022

Gastrointestinal parasites of dogs have been incriminated in cases of morbidity and mortality; hence, this study was undertaken to investigate the presence and distribution of gastrointestinal parasites in dogs presented to different veterinary clinics in Abeokuta, Ogun State. One hundred and twenty faecal samples were collected between February to September 2018 from three different veterinary clinics into universal sample bottles that were properly labeled with the age, sex and breed. Samples were processed with Mini-FLOTAC® kit using salt and sugar solution at a specific gravity of 1.3. Data were analyzed with descriptive statistics and Chi square test was used to determine the association between variables. Of the 120 dogs screened, 37(30.8%) were positive for one or more gastrointestinal helminths: males had a prevalence of 24(20%) while females had a prevalence of 13(10.8%). Prevalence of 29(24.1%) and 8(6.7%) was reported in young and adult dogs respectively. Of the different breeds of dogs sampled; the Nigerian local breed had the highest prevalence 21(17.5%) of gastrointestinal helminths, followed by German shepherd 8(6.7%), Rottweiller 5(4.2%), Boerboel 1(0.8%) Samoyed 1(0.8%) and Pitbull 1(0.8%). A statistically significant association (p<0.05) was recorded between gastrointestinal helminth infection and breed while no statistically significant association (p>0.05) was observed between age, sex and gastrointestinal helminth infection. Six different genera of helminths were recorded in this study: Ancylostoma caninum (17.5%), Toxocara canis (14.1%), Toxascaris leonina (2.5%), Dipylidium caninum (2.5%), Trichuris vulpis (1.7%) and Taenia spp (1.7%). The findings from this study indicated moderate prevalence of gastrointestinal helminth infection. The presence of Ancylostoma caninum, Toxocara canis and Dipylidium caninum infection in this study raises concern about the zoonotic potential of these parasites due to the close relationship between man and dogs.
Haematology and pathologic changes associated with Pseudomonas aeruginosa isolated from barn swallows around poultry houses in broiler chickens
Authors: Ohore O.G. , Jubril A.J. , Adekunle L.A.
Published: May 2022

The impact of vermin found in poultry houses has increased in recent times. This study evaluated the occurrence of Pseudomonas aeruginosa in free flying barn swallows found in poultry houses in Ibadan and determined its pathogenicity in broilers. Barn swallows (23) were caught using mist nets, their oral and cloacal microbial culture yielded Pseudomonas aeruginosa. One-week-old, thirty-five broilers were divided randomly into infected (n=23) and control (n=12) groups. Each bird in the infected group was inoculated with viable infective dose of 0.5 ml of 8hr broth containing (105) CFU/ml of Pseudomonas aeruginosa via oro-nasal route. The infected group showed dullness, rales and bloody diarrhoea. The pack cell volume was consistently lower in the infected group compared to the control group although not statistically significant post-infection. The platelets count was significantly (P <0.05) higher in the infected group on day 7 pi. Total white blood cell was significantly (P <0.05) higher in the infected group on day 14 pi. There was a significant (P<0.05) increase in heterophil count on days 7 and 35 pi. The mean lymphocyte value of the infected chickens was significantly (P <0.05) lower than the control group only on day 35 pi, while the monocyte count in the infected group was significantly (P<0.05) lower on day 28 pi. Pseudomonas aeruginosa, Escherichia coli and Staphylococcus aureus were sensitive to gentamycin and resistant to oxytetracycline except for Pseudomonas aeruginosa. Hepatic congestion, splenomegaly and enteritis were observed in the infected chickens. Barn swallows harbour pathogenic bacteria, causing clinico-pathological changes in chickens and may be partly responsible for transmission of pathogenic bacteria within and between poultry houses due to their free-flying habit. Adequate biosecurity measures including screening nets on poultry houses are recommended to prevent access of these free flying birds into poultry pens.
Vaccination indices and concomitant serological status of Newcastle disease in chickens in Aba and Umuahia of Abia State
Authors: Okonkwo C.J. , Iwuamadi F. , Sanda M. , Igwe A.O.
Published: May 2022

The vaccination indices of Newcastle disease (ND) in chickens in Aba and Umuahia towns of Abia state were studied alongside their corresponding antibody status. A total of 296 sera samples were collected from 74 chicken farms. A Haemagglution inhibition (HI) test was conducted to determine the ND virus serum antibody levels. Open and closed-ended questionnaires were administered to staff on the farms selected randomly in the study areas. Information on vaccine types, origin, administering personnel, revaccination interval, and records of ND outbreaks was collected. Whereas 68.9% of the farm carried out vaccination on their own, 27.0% and 4.1% of the vaccination were done by veterinarians and animal health scientists Farms in Aba and Umuahia had average geometric mean titres (GMT) of 166.32 and 100.33, respectively. Approximately 87% of the farms had protective immunity (GMT >8 or log23) against ND. Chickens aged 1-3, 4-8, 9-16, 17 weeks and above had average GMTs of 64.00, 76.99, 283.7 and 197, respectively. Post-vaccination antibody titres were 128.92, 110.63, 52.07 and 43.65, after 1 week, 2-3 weeks, 4 weeks, and above 4 weeks, respectively. Indigenous ND vaccines had an average GMT of 182.55, while foreign ND vaccines had a GMT of 120.82. The Result showed that 77% of farmers used foreign vaccines whereas 23% used indigenous vaccines. On vaccination interval, 40.5% revaccinated for ND every three weeks, 21.6% monthly, 8.1% bi-monthly and 29.7% revaccinated when necessary. About 54% of farmers reported previous ND occurrence. This study identified high seroprevalence of ND antibodies in the flock studied and indicated a high level of awareness and adherence to NDV vaccination among the farmers in the study area. The local vaccines elicited better immunogenic responses than their foreign counterparts. We, therefore, recommend that usage of the local vaccines be adopted, and revaccination is done before a month interval.
The Steps of Nemesis
Authors: Evreinov Nikolai , Albert Gleb J.
Published: May 2022

In the 1910s the Russian theater director and theorist Nikolai Evreinov (1879-1953) insisted on the theatricalization of life. Twenty years later Evreinov, who had left Russia in 1924, was in exile in Paris when Stalin staged three elaborate political show trials in Moscow. Now he meticulously read the transcripts of the trials in the Russian-language press, collected material on Nikolai Bukharin and the other defendants, consulted with experts, and finally wrote a play, his response to the staging of a judicial farce. With this response, he possibly also wanted to rehabilitate his idea of the theatricalization of life. After all, the theatricalization of life does not mean performing false confessions, constructing conspiracies, fabricating facts, or casting hired witnesses. In his theatrical theory, Evreinov was concerned not to make the theater of life invisible. His play is therefore not a historical reconstruction, but an imaginary look behind the scenes, in which the Stalinist perpetrators confess to the real crime in the end: the theater.
ABCA1 có thể đích tiềm năng của miRNA-144 trong tế bào sụn
Authors: Ngân Mai Thị Cẩm , Linh Lê Thị Trúc
Published: May 2022

MiR-144-3p trước đây được chứng minh là có vai trò quan trọng trong sinh học sụn, với các tác động tiềm ẩn trong thoái hóa khớp (OA). Một cái nhìn sâu sắc về chức năng của miRNA này có thể có tầm quan trọng thực tế đối với liệu pháp điều trị dựa trên miRNA trong tương lai. Tuy nhiên, người ta còn biết rất ít về vai trò sinh học của miRNA này. Vì chức năng sinh lý của một miRNA riêng lẻ sẽ được quyết định thông qua các mục tiêu mRNA của nó và ABCA1 được báo cáo là có liên quan đến sự biệt hóa, trưởng thành và duy trì kiểu hình của tế bào chondrocyte, nghiên cứu này nhằm chứng minh ABCA1 là mục tiêu trực tiếp của miR-144-3p. Các phần mềm tin sinh học được sử dụng để dự đoán các con đường tín hiệu tương tác với miR-144-3p trong tế bào chondrocyte. Các vị trí liên kết của miR-144-3p trong ABCA1 3’UTR đã được xác định. Những dữ liệu này cho thấy ABCA1 có thể là đích tiềm năng của miR-144-3p trong tế bào chondrocyte.
Nghiên cứu tỷ lệ kích thước chiều dày mặt bích, chiều dày thành ống và đường kính bulong trong liên kết ống thép tròn công trình tháp trụ ở Việt Nam chịu tác động xoắn
Authors: Vi Trịnh Hồng
Published: May 2022

Đối với kết cấu tháp, trụ yếu tố quan trọng là phải tính toán kiểm tra ổn định. Kết cấu mất ổn định do xoắn là phức tạp và đặc trưng nhất với kết cấu này. Ngoài các giải pháp cấu tạo vách cứng ngang và xiên theo chiều cao. Chúng ta cần quan tâm vị trí liên kết các ống thép biên tại các đốt. Thực tế cho thấy các trường hợp công trình khi bị mất ổn định thường xảy ra phá hoại tại mối nối liên kết này.

Bài báo nhằm đưa ra kiến nghị về tỷ lệ của ba thông số chiều dày mặt bích, chiều dày thành ống và đường kính bulong trong liên kết ống thép tròn với các công trình tháp, trụ sử dụng thanh biên là ống thép tròn ở Việt Nam chịu tác động xoắn để giúp tối ưu hóa việc lựa chọn kích thước tiết diện khi thiết kế các công trình tháp trụ bằng kết cấu thép. Đảm bảo về mặt chịu lực của kết cấu và tính kinh tế khi thiết kế công trình.
Therapeutic Attribute to Imidazole Derivatives
Authors: Sharma Palvi , Singla Shivali , Soni Abhishek , Palia Priyakul , Goyal Sachin
Published: May 2022

This review gives information about some new discovered imidazole derivatives and the activities of these imidazole derivatives. In this review, summarized imidazole derivative which have been proved to exhibit various pharmacological activities as antimicrobial, anti-inflammatory, anti-tubercular, anti-depressant, antiviral and analgesic. Many study reports have been generated in a short period of time due to the rapid development of novel compounds containing this nucleus. As a result, it appears that recent data is needed to understand the current state of the imidazole nucleus in medicinal chemistry research, with a focus on the numerous attempts to synthesis and investigate new structural prototypes with improved therapeutic activities.
imagen virtual de un patrimonio en constante cambio: la documentación del arte urbano y su contexto
Authors: Moral Ruiz Carmen
Published: May 2022

La documentación del arte situado en el espacio público es una tarea compleja desde diversos puntos, el principal está generado por la naturaleza misma de estas manifestaciones que, en ocasiones, son elaboradas con intención efímera y en las que sus creadores, junto con la comunidad, tienen un papel prioritario. Las discusiones e investigaciones en torno a este campo de estudio son de distinta índole, así como diversos son los estudios que se llevan a cabo por las distintas figuras involucradas. A lo largo de esta aportación, se pretende elaborar una visión acerca de la documentación de estas obras y las posibilidades que brinda el entorno virtual para su difusión y protección. Estas se encuentran enfocadas a las diversas facetas y potencial para generar imágenes que brindan las herramientas digitales, de manera que se promueva la conservación de las obras, referida únicamente a su existencia como documento y no a su materia.
Economic Behavior Changes On Organic Food Consumption In Pandalungan Community
Authors: Harisandi Yudhistira , Saleh Mohammad , Cahyo Diartho Herman , Soeparjono Sigit
Published: May 2022

The districts of Situbondo, Bondowoso and Jember are the centers of residence for the Pandalungan community. Pandalungan community is a society with mixed cultures, namely Java and Madura. Most of them live in urban areas. Like other community entities, some of these communities have not consumed organic food plants, given the scarcity of information about organic plants. The objectives of this study were: (1) to determine the effect of plant organic food product attributes as healthier food plants, and the discomfort caused by organic food plants on the motivation to shift consumption through the attitude of shifting non-organic food plant products to organic food plants. ; (2) to determine the effect of moderating motivation to elaborate information on the effect of product attributes and discomfort on product switching attitudes. The analytical method used is Structural Equation Modeling (SEM) with AMOS applications, the research sample of 250 respondents selected from the three research areas, with proportional random sampling method. The results of the study show that product attributes have a positive and significant effect on product switching attitudes, as well as their influence on the motivation to shift consumption to organic food crops. Meanwhile, discomfort has a significant negative effect both on product switching attitudes and on motivation for shifting consumption. Product switching attitude has a positive and significant effect on the motivation to shift in consumption. The moderating effect of motivation on elaborating information strengthens the effect of product attributes on product switching attitudes, but the moderating effect of motivation on elaborating on information through discomfort is proven insignificant. The interactive structural equation function mathematically can be written as follows: (1) SK = 1,420 AT– 0.773 KN + 0.278 ATml - 0.198 KNml + e3; and (2) NI = 1.366 AT - 1.466 KN + 0.768 SK + 0.425 ATml - 0.787 KNml + 0.570 SKml + e4. shows that product attribute improvements can be widely and continuously informed to the public so that people will know and be able to make comparisons with competitors' products. This will motivate more wisely towards product switching. This finding related to the limited alternative product choices; product constraints are difficult to find, high prices (Zanoli & Naspetti; 2002, and Chinnici, and friends; 2002). Low availability in the market (Kalafatis, and friends;, 2009: Magnusson, and friends; 2012, Vindigni, and friends; 2002, Tarlanen & Sundqvist; 2005, Chen; 2009); and the minimum number of alternative options (Chinnici, and friends; 2002) as well as the cost of switching (Anton, and friends; 2007).
Effects Of Organizational Commitment And Organizational Justice On Organizational Citizenship Behavior With Job Satisfaction As A Mediation
Authors: Sunaris Deby , Wahyoedi Soegeng , Tecoalu Melitina
Published: May 2022

This study aims to determine the effect of organizational commitment, organizational justice and job satisfaction as a mediation on teacher OCB. The research subjects were 64 teachers who teach at the Gamaliel Christian School in Palu with an age range of 20-55 years. Data obtained through questionnaires distributed using google form. The analysis technique used is SEM-PLS (Structural Equation Model-Partial Least Square) using SmartPLS software version 3.3.2. The analysis results obtained that organizational justice has a positive effect on OCB, organizational commitment has a positive effect on OCB and organizational justice has a positive effect on OCB. While job satisfaction does not have a positive effect on OCB, organizational commitment does not have a positive effect on job satisfaction, organizational justice does not have a positive effect on OCB mediated by job satisfaction and organizational commitment has no positive effect on OCB mediated by job satisfaction. job satisfaction and OCB to teachers, the coefficient of determination of job satisfaction is only 17.9% which can be explained in this study, as well as the coefficient of determination of OCB is only 31.2% which can be explained in research i This means that there are about 82.1% of job satisfaction variables and 68.8% of OCB variables which can be explained from other variables outside the study such as motivation, transformational leadership. This study found that job satisfaction does not positively mediate organizational justice and organizational commitment to teachers, and this becomes input for the management of school organizational management.
An Analysis Of Purchase Decisions On Customer Satisfaction Through Customer-Based Brand Equity And Product Innovation: Concequences For Air Conditioner Panasonic In Medan
Authors: Suwarno Bambang
Published: May 2022

The purpose of the study was to determine the effect of customer-based brand equity (CBBE) and product innovation on consumer satisfaction through purchasing decisions of Panasonic air conditioners in Medan. The research uses quantitative methods with a causal associative research approach. The population is the buyer of Panasonic air conditioners in the city of Medan. The research sample used purposive sampling technique. 100 respondents were obtained with the Slovin technique. Data collection techniques with questionnaires and interviews to be tested for validity and reliability. Data analysis with SEM-PLS. The results showed a significant positive effect for all research variables. CBBE on Customer Satisfaction 0.180 and P-Values ​​0.013, CBBE on Purchase Decision 0.230 and P-Values ​​0.008, Product Innovation on Customer Satisfaction 0.588 and P-Values ​​0.000, Product Innovation on Purchase Decision 0.365 and P-Value 0.000, Purchase Decision on Satisfaction Consumers 0.642 and P-Values ​​0.000, Product Innovation on Consumer Satisfaction through Purchase Decisions 0.084 and P-Values ​​0.016 and CBBE on Consumer Satisfaction through Purchase Decisions 0.148 and P-Values ​​0.008. The reaserch findings reveal that customers emotionally react to the product they want to buy, whether they are satisfied or not and this is very important for customer-based brand equity. The products offered related to their innovations influence the purchasing decisions of customers. And there is a significant relationship in handling customer complaints properly and correctly to the level of customer-based brand equity which will create a high level of customer satisfaction and customer loyalty.
The Effect Of Maslow's Motivation Theory And Work Discipline On The Performance Of Asn In The Regional Governments Of Coastal Barat Regency
Authors: Wira Gunawan Satari , Erlina RR. , Ahadiat Ayi
Published: May 2022

Constraints that often arise from the condition of ASN resources in the Pesisir Barat Regency Government are:The existing ASN is more dominated by contract workers compared to Civil Servantsand there are still many ASN placements that are not in accordance with their expertise. This study discusses the influence of Maslow's theory of motivation and work discipline on the performance of ASN in the Pesisir Barat Regency Government. The method used in this research is a descriptive research method with a quantitative approach with the aim of describing it systematically and in accordance with the facts to be investigated by collecting data, processing and analyzing data in hypothesis testing. This study discusses 2 (two) main problems. The first hypothesis is that work motivation has a significant and positive effect on the performance of ASN in Pesisir Barat Regency. The second hypothesis is that work discipline has a significant and positive effect on the performance of ASN in Pesisir Barat Regency. The results showed that the significance value of the work motivation variable t was 0.002, meaning that the First Hypothesis was accepted or in other words there was a significant influence between one independent variable of work motivation on the dependent variable of performance. For the significance value of work discipline variable t 0.000, it means that the second hypothesis is accepted or in other words there is a significant influence between one independent variable work discipline on the dependent variable performance.
Mediation Role Of Organizational Commitment On The Influence Of Job Satisfaction On Ocb (Organizational Citizenship Behavior) Employees Of Pt Cipta Agung Manis
Authors: Kurniadi Cahya , Jimad Habibullah , Mardiana Nova
Published: May 2022

The effect of job satisfaction on employees' Organizational Citizenship Behavior (OCB), the effect of job satisfaction on employees' organizational commitment, the effect of organizational commitment on employees' Organizational Citizenship Behavior (OCB), and mediating organizational commitment on the effect of job satisfaction on the Organizational Citizenship Behavior (OCB) of PT Cipta employees Great Sweet.This study uses a quantitative approach. The population of this study was 340 people with sampling through stratified random sampling method obtained a total sample of 180 people. Data collected through questionnaires that have been tested for validity and reliability. The data analysis technique used is multiple regression and mediation calculation through path analysis and Sobel test. The results of this study support all the proposed hypotheses where job satisfaction has a positive effect on Organizational Citizenship Behavior, job satisfaction has a positive effect on organizational commitment, organizational commitment has a positive effect on Organizational Citizenship Behavior and the role of organizational commitment is able to mediate the effect of job satisfaction on Organizational Citizenship Behavior. Suggestions in this study are that leaders should better approach employees of PT Cipta Agung Manis,Increased motivation in terms of giving rewards or compensation for employees is further enhanced for the achievements that have been achieved, employees see the conditions in their work by bringing up a higher sense of soprtivity.
Antibacterial Potential Of Ethanol Extract Of Tamarind Seed Bark (Tamarindus indica L.) And Formulation Of Anti-Acne Nanogel
Authors: Amalyuri Annisa Ghassani , Reveny Julia , Dalimunthe Aminah
Published: May 2022

Acne is a skin disease that affects a large number of sufferers. Acne occurs due to active oil glands under the skin. This activity is stimulated by androgen hormones. The active compound content of proanthocyanidin is the main compound in the ethanolic extract of tamarind seed bark, which can inhibit the growth of acne-causing bacteria, namely Propionibacterium acnes and Staphylococcus epidermidis. The purpose of this study was to formulate a nanogel from tamarind seed bark extract and test the antibacterial potential of an ethanol extract of tamarind seeds against acne-causing bacteria. The antibacterial potency test consisted of variations in concentration and was 0.5, 1, 5, 25, 50, 75, 100, 125, 150, and 300 (in mg/mL). The concentration of the formulated nanogel preparations was 2.5%, 5%, and 7.5%. The MIC results showed that the minimum inhibitory concentration (MIC) was at a concentration of 1 mg/mL with a zone of inhibition of 6.50 ± 0.44 mm (Propionibacterium acnes) and 6.40 ± 0.10 mm (Staphylococcus epidermidis). The minimum bactericidal concentration (MBC) was at a concentration of 25 mg/mL with a percentage reduction of 98.18% (Propionibacterium acnes) and 98.06% (Staphylococcus epidermidis). The results of the nanogel formulations showed that the particle sizes were 49.88 ± 0.11 nm (Formula I), 51.92 ± 0.09 nm (Formula II), and 59.13 ± 0.10 nm (Formula III). Conclusion The ethanolic extract of tamarind seed bark has effectiveness in inhibiting the growth of acne-causing bacteria and can be formulated as an anti-acne nanogel.
STUDY OF OXIDATION KINETICS OF Al-Si ALLOYS WITH HIGH CONCENTRATION OF IMPURITIES (Fe, Zr, V)
Authors:   Space Research and Technology Institute, Bulgarian Academy of Sciences, Bulgaria, Petrova Anna , Yaneva Svetlana , Miteva Adelina , Stefanov Georgi , Barbov Boris ,   University of Oxford, United Kingdom
Published: May 2022

Aluminium alloys are used as lightweight materials especially in the aerospace and automotive industries. They have a number of properties such as high corrosion resistance due to the surface oxide coating, low relative weight and better castability. At normal temperatures, metal oxides are more resistant than the metal itself. The oxide layer is much thinner than the metal but protects it from interacting with the air. The kinetics of oxidation processes is the subject of the current work. As the temperature rises, the oxidation process usually proceeds in the presence of water vapour, and its rate depends on various factors, including the initial oxide layer and oxidation kinetics. The values of the oxidation exponent n аrе calculated for aluminium ribbons with different contents of Fe, Mg and Sb. Their influence on the intensity and two-stage tendency of the oxidation process is established.
FINANCIAL PERFORMANCE RANKING OF ISLAMIC BANKS IN JORDAN EMPLOYING EDAS AND TOPSIS METHODS
Authors: JARADAT Qabas Mohammad
Published: May 2022

This paper documents the findings of the financial performance ranking of Jordanian Islamic banks employing the similarity-to-ideal preference ranking technique Evaluation based on (TOPSIS) and Average Distance from Solution (EDAS) method. With the proposed approach we determine Criteria that affect the financial performance of the bank under consideration. The TOPSIS and EDAS methods are used to determine the significance weight of the criteria and the bank's performance score. The paper discovers that there are fluctuations in the EDAS and TOPSIS performance scores of analyzed Islamic banks in Jordan. This outcome demonstrates the performance instability of the considered banks. This consequence suggests that performance testing is meaningful in today's intensely competitive environment.
WITHIN THE SCOPE OF SUSTAINABILITY; THE EXISTENCE OF ECONOMIC PROBLEMS IN ENTERPRISES AND STRATEGIC SOLUTION METHODS
Authors: GÜRSOY Hakan , ARTANTAŞ Erkin
Published: May 2022

The world is struggling with crises. Undoubtedly, in this struggle stage, enterprises get their share from it. The problems of enterprises, which play an important role in the production and employment of states, are indirectly reflected in the whole country. At the same time, a country's problem in the global world quickly affects other countries due to global trade. Of course, measures are being taken by all authorized institutions to combat this, to the extent possible. However, the continuation of the problems at an increasing rate weakens the administrations economically and limits the possibility. Weakening in economic indicators meant reducing any support to be made. This situation was clearly reflected in the enterprises. Enterprises that were faced with problems with very unknown equations were trying every way to overcome them. It was getting harder for enterprises to grow and profit in line with their goals and aim. Increasing costs and production problems were causing problems in raw materials, product supply and logistics support. In addition to these, the decrease in the purchasing power of consumers had a negative impact on the supply and demand market. As the enterprises that supplied the product under difficult conditions could not make sufficient sales, they were experiencing high levels of economic distress. These problems especially affected the economic sustainability of small enterprises and made it difficult for them to survive. The crises that led to economic problems had clear consequences. These results told us that there are major economic problems and that strategic management practices should be put forward to combat them. This study was carried out in order to reveal what the problems and administrative solutions are. In the study, the documentary source compilation method was used. The study was based on the studies of researchers who focused on the economic problems experienced by enterprises after the economic crises. Of researchers; with enterprises owners and employees, their original research conducted was preferred and included in the scope of the study. Data on the economic problems faced by enterprises in different countries and the measures taken by the authorities and institutions were analyzed. The data obtained as a result of the analysis were added to the discussion, conclusion, and recommendations section of the study. As a result of this study, it has been revealed that enterprises have great economic problems, many enterprises cannot achieve their goals, and some of them have to end their existence. It has been observed that the support given to the enterprises by the authorized institutions and organizations is incomplete and insufficient. It has been concluded that it is important to continue to implement strategic management practices and that all-around support to enterprises should be continued.
FACTORS AFFECTING COMMUNICATION BETWEEN TEACHER AND SCHOOL ADMINISTRATOR
Authors: Gülbahar Bahadır
Published: May 2022

The aim of this research is to examine the effects of the communication skills of primary and secondary school principals, the communication established between administrators and teachers, on educational activities, school organization and school climate. A total of 12 primary and secondary school principals working in primary and secondary schools participated in this study, which was carried out in a qualitative research method and case study pattern. Easily accessible sampling, one of the purposive sampling methods, was used to determine the participants of the study. In the collection of research data, a semi-structured interview form prepared by the researcher in accordance with the relevant literature and the aims of the research was used. Descriptive analysis was used in the analysis of the data. At the end of the research, the following conclusions were reached: In the communication of the administrators and teachers working in primary and secondary schools, there is a communication disorder caused by not trying to understand each other between the parties, there is no respect and understanding towards each other in the communication between the administrators and the teachers, and education, seminar and group activities are needed to ensure a healthier communication of the participants. It has been determined that administrators and teachers believe that their communication can be increased by organizing meetings. It has been suggested that the ideal communication between administrators and teachers should be in mutual respect, trust and sincerity.
La educación del mañana con miras a un bien mundial: postulados de Bokova
Authors: González Claudia Beatriz Díaz , Valencia Jennifer Angarita
Published: May 2022

El objetivo de este artículo es analizar las diferentes perspectivas teóricas sobre la educación como derecho fundamental para todos, la incidencia del estado y demás entidades internacionales en la creación de políticas públicas y viables para la cohesión entre la empleabilidad y el sector educativo. Así mismo, se presenta una reflexión crítica del papel del maestro y la escuela en esta etapa de mundialización. Desde estas concepciones se aborda una metodología de tipo hermenéutica - interpretativa donde se busca interpretar cada una de las apreciaciones conceptuales de autores como Echeverría, B. & Martínez, C. (2018); Pulido, O. (2017); Avendaño, W &Guacaneme, R. (2016); Bokova, I. (2015); entre otros; con el fin de incorporar nuevas perspectivas críticas al tema citado y promover su reflexión. Para efectos de presentación este documento se agrupa en varios apartados relacionados con la educación en contextos de globalización. Finalmente, entender que la educación como derecho nos aproxima al principio rector de bienestar y la equidad en un mundo lleno de transformaciones, donde las acciones concretas y articuladas con las directrices de los organismos gubernamentales contribuirán al logro del mismo objetivo educativo, social, económico, político y cultural.
Advantages and costs of kosovo for integration in the European Union
Authors: Kulinxha Arta Xhylani
Published: May 2022

A European state desiring to be part of the European integration, have faced with many challenges before accession. Research conducted through the method of comparison, assessment and data collection is propulsion to achieve a target goal in addition to cost-benefits that would be for Kosovo integration into the European Union. The results of this paper, given the major advantages for local exporting enterprises. The benefit of the EU’s financial donations are eligible continuation of aid to candidate countries (Kosovo), also has its pay indirectly. Cost conditioned by the EU institutions are not welcome by the institutions and the citizens, are obligatory. Based on the authenticity of the main hypothesis for Kosovo reciprocal relations with the EU institutions, we come to the conclusion that more work and sacrifice for European integration even if the going a decade of not joining the EU, if there is strong until that time.