Chemical Science International Journal最新文献

{"title":"EMPLOYER BRANDING – IMPOSED NEED ON THE MACEDONIAN LABOUR MARKET","authors":"I. Blazhevski, Sanja Nikolic Blazevska","doi":"10.35120/sciencej020125b","DOIUrl":"https://doi.org/10.35120/sciencej020125b","url":null,"abstract":"The current state of the labor market indicates an increasingly pronounced trend of a lack of adequate workforce. This situation is further deepened by the emphasized trend of external migrations. One of the initial effects of migrations is the emergence of a lack of certain categories of workers with specific types of knowledge and skills, which in the long term, as well as in the short term, can reflect negatively on the human capital of the sending country. One of the most widespread concepts for successfully dealing with the deteriorating conditions on the labor market is employer branding. Even though this concept is relatively new, it is widely accepted and implemented by the biggest multinational companies. The aim of this paper is to give an account of migration trends in Macedonian society, and the impact of these trends on the human capital situation. In addition, through an analysis of the presence of the concept of employer branding in some of the largest and most recognizable companies in Macedonia, the extent of recognition of this concept among Macedonian companies would be determined. In doing so, the official social media accounts and websites of these companies were analyzed, that is, the contents and announcements through which the employer branding strategy of these companies can be recognized. In the findings of these analyses, it is stated that the concept of employer branding has been recognized and implemented among large Macedonian companies, and various activities and initiatives are undertaken to establish them as a desirable employer. In addition, employer branding positions have been introduced within the HR or marketing departments. But presenting these initiatives through social media represents the initial stage of developing an employer branding strategy. If Macedonian companies want to establish themselves successfully and in the long term, as a desired employer, they will have to develop complex and comprehensive strategies for employer branding. \u0000 ","PeriodicalId":9803,"journal":{"name":"Chemical Science International Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89513552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"LEADERSHIP IN TIMES OF CRISIS","authors":"Marija Dimitrovska, Liljana Pushova Stamenkova, Lazar Stošić","doi":"10.35120/sciencej020119d","DOIUrl":"https://doi.org/10.35120/sciencej020119d","url":null,"abstract":"Leadership encircles the capability of an individual, group or organization to guide others (individuals, teams, or whole organizations). True leadership requires a personality that attracts other people, constant development of relationships with team members, possessing professional and practical knowledge and skills, experience, self-confidence, intuition and empathy. Strong leaders continuously empower other people, because they believe in their team members. Leadership skills are continuosly learned and improved not only during professional development, but throughout person’s life. Crises are inevitable events, that occur sooner or later in all the organizations. They can be triggered by different internal or external factors. Each crisis is specific and unique and requires different approaches for finding solutions. When a crisis occurs, ignoring or avoiding it, is one of the biggest mistakes for the organization. It should be accepted, resolved and used to initiate change, which is necessary for organzations’ survival and further development and growth. Having an organized, planned and structured approach to crisis management can help in damage reduction, restraing the company losses and discover inventive mechanisms to maintain the workforce’s productivity. Crisis leadership is a process that resolves the unforseeable events that happen unexpectedly and have the ability to diminish the organizational structure, to cease growth and development and lead to catastrophic outcomes. Whether the crisis will be successfully resolved, depends on how the leadership will deal with the situation. A positive approach to crisis is to accept it as an opportunity, to take responsibility, manifest confidence and implement changes which will streghtehen the organization and empower the employess to perform better and become stonger people in future. If leaders are bold and act, if they are decisive and willing to adapt their decision to the occurring conditions, they are going to have more success in resolving the crisis, compared to leaders that choose to wait and not take any action. Leadership is a vital process at all times, but when a crisis strikes, a strong leader has cardinal importance for the organization.","PeriodicalId":9803,"journal":{"name":"Chemical Science International Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81640530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of Petroleum Hydrocarbons in Soil from Auto-mobile Mechanic Workshops within Ikot Akpaden, Mkpat Enin L.G.A Akwa Ibom State Nigeria","authors":"E. Ikpe, U. U. Ubong, E. Uwanta, U. U. Oku, E. Akpan","doi":"10.9734/csji/2023/v32i2842","DOIUrl":"https://doi.org/10.9734/csji/2023/v32i2842","url":null,"abstract":"This study investigates the concentrations of total petroleum hydrocarbon (TPH) and total hydrocarbon content (THC) in soil samples from auto-mobile mechanic workshop in Ikot Akpaden, Mkpat Enin. Soil samples were collected in triplicate at different points within the vicinity of auto-mobile mechanic workshop at Ikot Akpaden represented as site A and control samples were obtained within the frontage of Chemistry Department, AKSU represented as site C. Soxhlet extraction and shaking methods were used  for the extraction of the total petroleum hydrocarbons and total hydrocarbon content respectively. Each of the sample extracts were purified using column chromatography to remove moisture, polar hydrocarbons, colour interferences and any impurities before GC analysis. Total petroleum hydrocarbons and THC were analyzed using Gas Chromatography (GC-FID) and UV-VISIBLE spectrophotometer respectively. The results obtained from TPH analysis indicates that; 15,223.4 mg/kg was recorded from the auto-mobile mechanic workshop and 808.507 mg/kg was recorded from the control samples. The results from the two stations were higher than the department of petroleum resources (DPR) permissible limit of 50 mg/Kg for soils. There was significant difference in the concentration of total hydrocarbon content, the result obtained showed that, the three sampling point at the mechanic workshop has THC level in the order; A1>A3>A2. The concentration of THC obtained in the three points were greater than the 0.6 mg/Kg limit of total hydrocarbons content allowed by the DPR. The study revealed that the soils were polluted as a result of indiscriminate disposal of waste petroleum products (used engine oil, petrol, diesel and other lubricants) directly on the soil, as well as dumping and burning of waste at the auto-mobile mechanic workshops. Hence, there is need for a holistic and sustainable monitoring and remediation of the environment for a cleaner and healthier environment.","PeriodicalId":9803,"journal":{"name":"Chemical Science International Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77794438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monitoring of the Physicochemical and Microbiological Quality of Water Produced and Distributed by La Congolaise Des Eaux (LCDE) in Brazzaville","authors":"R. F. L. Mvouezolo, M. Tchoumou, Promesse Nsona Moussoki, Christ Bardoul Engambe, Fulbert Bouaka","doi":"10.9734/csji/2023/v32i2841","DOIUrl":"https://doi.org/10.9734/csji/2023/v32i2841","url":null,"abstract":"Water is an essential element for all living beings and therefore deserves special attention to maintain its quality. The objective of this work is to monitor the physicochemical and microbiological parameters of the water produced and distributed by La Congolaise Des Eaux (LCDE) of Brazzaville in order to evaluate the risk on the health of consumers. Ninety (90) and eighty-five (85) samples were taken respectively in the southern and northern areas of the city of Brazzaville. These different samples were analyzed using physicochemical and microbiological methods.\u0000The results obtained show that these waters have high temperature values, ranging from 27.88 and 28.10°C in the South and North zones compared to the WHO guideline value (25°C) and have a moderately acidic pH (6 ,20-7.00) in both areas.\u0000The turbidity of the water is more pronounced in the southern zone (6.83 NTU) and is reflected in the absence of residual chlorine in the maximum number of sampling points with low mineralization. From a microbiological point of view, these waters show contamination with total germs, total coliforms and fecal coliforms. This contamination is more pronounced in the southern zone than in the northern zone. Thus, the factorial analysis shows contamination by total germs and indicator germs of fecal contamination (total coliforms and fecal coliforms) and reflects the lack of residual chlorine at the consumer's tap.\u0000In view of the results obtained, this study shows that the ageing of the installations and the dilapidated state of the pipes of the LCDE have a negative impact on the quality of the water distributed, which constitutes a high health risk for the consumers.","PeriodicalId":9803,"journal":{"name":"Chemical Science International Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77620083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determination of the Physicochemical Parameters and Pollution Indices in Soils of Obodo Community in Delta State, Nigeria","authors":"D. Okoro, Lucy Ginika Ubah, Lily Chovwe Diejomaoh","doi":"10.9734/csji/2023/v32i1833","DOIUrl":"https://doi.org/10.9734/csji/2023/v32i1833","url":null,"abstract":"Oil and gas activities are one of the environmental concerns in the crude oil-rich areas of the Niger Delta. This study aimed to determine the physicochemical level and some pollution indices in the soils of the Obodo community in Delta State to ascertain if there is an anthropogenic influence on the soil quality. Soil samples were collected from 14 sampling stations and 2 control stations during the wet and dry seasons from two soil depths (topsoil, 0 - 15cm) and (subsoil, 15-30cm) according to standard methods and procedures. The study results revealed elevated concentrations of total hydrocarbon content, polyaromatic hydrocarbon, total petroleum hydrocarbon and sulphate with mean values of 138.45 mg/kg  (topsoil) and 147.66 mg/kg (subsoil); 52.62 mg/kg  (topsoil) and 30.01 mg/kg (subsoil); 229.95 mg/kg  (topsoil) and 160.33 mg/kg (subsoil); 54.89 mg/kg  (topsoil) and 44.88 mg/kg (subsoil) during the wet season respectively; and mean values of 172.94 mg/kg  (topsoil) and 151.46 mg/kg (subsoil); 11.11 mg/kg  (topsoil) and 10.25 mg/kg (subsoil); 19.63 mg/kg  (topsoil) and 17.99 mg/kg (subsoil); 22.57 mg/kg  (topsoil) and 19.95 mg/kg (subsoil) during the dry season respectively. The high concentrations observed in this study indicates anthropogenic influence that may be due to oil spillage, emission from vehicle exhaust, incomplete combustion of coal, and the use of inorganic fertilizer. The results of the index of geo-accumulation and contamination factor showed that the levels of heavy metals were those of unpolluted soil except for the cadmium concentration observed in the topsoil of the study area, which showed moderate pollution during the wet season. The low pH values and a higher percentage of sand in the soil infer that the low heavy metals concentration observed in this study may be due to cations leaching down the aquifer which requires further studies to examine the groundwater quality.","PeriodicalId":9803,"journal":{"name":"Chemical Science International Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78445264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and Characterization of 5-Chloro 2-furaldehyde Thiosemicarbazone and Its Nickel, Copper and Zinc Complexes","authors":"Mohammed Adam Adam Abdulbary, M. S. A. Eltoum, E. Ali","doi":"10.9734/csji/2023/v32i1832","DOIUrl":"https://doi.org/10.9734/csji/2023/v32i1832","url":null,"abstract":"The aim of the present study was to synthesize and characterize of divalent metal ions of Nickel, Copper and Zinc complexes of 5-chloro 2-furaldehyde thiosemicarbazone. Firstly ligand was prepared from the reaction between 5-Chloro-2-furaldehyde and thiosemicarbazide, the second step involved the synthesis of Ni(II), Cu(II) and Zn(II) complexes of 5-chloro 2-furaldehyde thiosemicarbazone. The prepared compounds (ligand or complex) was characterized using different analytical techniques such as elemental analysis, and IR, UV, Mass and 1H NMR tests, the results obtained showed that the ligand and its Ni(II), Cu(II), Zn(II) and Co(II) complexes of 5-chloro 2-furaldehyde thiosemicarbazone were prepared successfully.","PeriodicalId":9803,"journal":{"name":"Chemical Science International Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75685382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and Characterization of Nickel (II), Cobalt (II), Copper (ll) and Zinc (II) Complexes with 5-Chloropyridine-2-Carbaldehydethiosemicarbazone","authors":"Mohammed Adam Adam Abdelbary, Mohammed Sulieman Ali Eltoum, Elmugdad Ahmed Ali","doi":"10.9734/csji/2023/v32i1831","DOIUrl":"https://doi.org/10.9734/csji/2023/v32i1831","url":null,"abstract":"5-chloropyridine-2-carbaldehydethiosemicarbazone (HL1) and its nickel(II), cobalt(II), Zinc(II) and copper(II) complexes: [Ni(HL1)2], [Co(HL1)2], [Zn(HL1)2], [Cu(HL1)2], [Cu(HL1)], were synthesized and characterized. The ligand has been characterized by elemental analyses, IR, 1H NMR and Mass spectroscopy. The dentate nature of the ligand is evident from the spectral obtained data and literature.","PeriodicalId":9803,"journal":{"name":"Chemical Science International Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85490315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chromium Concentrations in Automotive Paints from Retail Stores in Kenya","authors":"F. H. Were, L. Mwaia","doi":"10.9734/csji/2023/v32i1830","DOIUrl":"https://doi.org/10.9734/csji/2023/v32i1830","url":null,"abstract":"Chromium (Cr) is among the heavy metals that are added to automotive paints to provide protection against corrosion and reflective properties. However, exposure to hexavalent chromium Cr(VI), which is the toxic form of Cr is associated with adverse health effects such as lung cancer. The study, therefore, assessed Cr levels in the automotive paints commonly used by spray painters in informal settings in Nairobi City. Chromium concentrations were determined in triplicates in the three sets of automotive paint samples in red, blue and green colours. The same samples were also used for the determination of lead content and the findings of the study were published elsewhere. The automotive paint samples were procured from 8 formal and informal retail stores. The Cr concentrations was also analyzed  using Atomic Absorption Spectrophotometry. The mean ± standard deviation (SD) of Cr levels obtained from informal retail shops ranged from 120.5±10.6 to 2771.9±35.6 parts per million (ppm). On the contrary, those from the formal retail stores were significantly lower (p < 0.05), and were in the range of 39.3±7.0 to 461.9±11.1 ppm. The Cr levels in automotive paints varied greatly across different colours and retail shops. Substantial levels were observed in almost all paint samples purchased from the informal retail shops except one retail shop. The elevated Cr levels in various colours of automotive paints used by spray painters in the informal sector call for a comprehensive assessment of Cr in these settings along with health-driven policies to address related health impacts.","PeriodicalId":9803,"journal":{"name":"Chemical Science International Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82744894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chemical, In-vitro Multienzyme Digestibility and Amino Acid of Sorghum (Sorghum bicolor (L) Moench) Fortified with Soybean (Glycine max) Composite Meal flour","authors":"Oluwagbenle Henry Niyi","doi":"10.9734/csji/2023/v32i1827","DOIUrl":"https://doi.org/10.9734/csji/2023/v32i1827","url":null,"abstract":"The proximate, minerals, functional properties, in-vitro multi enzyme protein digestibility of fortified sorghum with soybean composite meal flour have been determined using standard analytical methods. The sample contained moisture (3.52%), ash (3.40%), crude fat (27.44%), crude protein (39.33%), crude fibre (5.66%) and carbohydrate (22.65%). The magnesium was the highest mineral with the value of 40.78mg/kg while copper had the lowest value of 0.04 mg/kg. The results of functional properties showed that water absorption capacity (WAC) had the value of 142.62%, oil absorption capacity (OAC) had the value of 114.24%, foaming capacity/stability (6.50%/2.00%)while the least gelation concentration was 2.00%. The multi enzyme protein digestibility was 66%. Glutamic acid was the most concentrated amino acid with the value of 172.5 mg/g crude protein while cysteine was the least concentrated with the value of 20.5 mg/g crude protein. The average total amino acid in the composite sample was 915.5 mg/g crude protein and the total average percent essential amino acid was 44.7% (with histidine), 42.3% (without histidine). The composite sample would provide the required amino acids for the pre-school children (2-5yrs) since the values obtained were higher than 100% required standards recommended for the group.","PeriodicalId":9803,"journal":{"name":"Chemical Science International Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88823069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DETERMINING THE PURCHASE AND SALE VALUE OF SHARES BY ESTIMATING THE VALUE OF THE CAPITAL","authors":"Gordana Stojmenović, Tatjana Mrvić, Miodrag Smelcerović, Pavle Trpeski","doi":"10.35120/sciencej0203129s","DOIUrl":"https://doi.org/10.35120/sciencej0203129s","url":null,"abstract":"The aim of this paper is to point out the fact that without determining the value of shares, their sale cannot be done, because any investment brings certain risks and uncertainties, so it should be done based on financial analysis of the company and determined fair value of its capital. Realistic and adequate assessment of the value of the company’s capital is of multiple importance for the potential investor when making an investment decision. Determining the fair value of shares also protects „small“ shareholders whose shares the investor wants to repurchase. In this paper, an assessment of the value of the capital of the company „X“ AD was performed and the fair price of one share was formed, which the bidder should offer to „small“ shareholders and buy them back. Therefore, the financial analysis of the company was used (determining the market position of the company, its return, property and financial position) as well as the usual methods of estimating its capital (adjusted book, property, return and liquidation value of the company).","PeriodicalId":9803,"journal":{"name":"Chemical Science International Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136307035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}