International Journal of Progressive Sciences and Technologies
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Performance Analysis of Improved Subcarrier Index Modulation OFDM Using a Novel Decision Rule over AWGN Link
Get PDFSubcarrier Index Modulation Orthogonal Frequency Division Multiplexing (SIM-OFDM) is a modulation technique that extends information transmission beyond conventional subcarriers, incorporating their presence or absence. However, inaccurate determination of subcarrier status at the receiver can result in a high Bit Error Rate (BER). In response, this paper introduces an enhanced version named Improved SIM-OFDM (iSIM-OFDM). iSIM-OFDM employs a novel decision rule based on the summation of absolute values of the real and imaginary parts of each received symbol. Through simulations conducted over an Additive White Gaussian Noise (AWGN) link using Python, we performed a comparative study with conventional SIM-OFDM, specifically focusing on the electrical energy-per-bit per noise ratio Eb⁄N0 for various constellation sizes. The results reveal that iSIM-OFDM outperforms conventional SIM-OFDM in terms of BER performance, achieving a maximum gain in Eb⁄N0 of up to 2dB. This improvement is followed by the added advantage of reduced computational complexity while maintaining equivalent spectral efficiency. Furthermore, in the context of Power Reallocation Policy (PRP) versus Power Saving Policy (PSP), iSIM-OFDM achieves a gain of approximately 3 dB in Eb⁄N0 with PRP. Additionally, iSIM-OFDM demonstrates similar BER performance in PRP policy with only half the transmitted power compared to PSP policy. Considering these aspects, iSIM-OFDM emerges as a robust candidate in wireless communication fields where energy constraints are stringent, and rapid computational processing is imperative
The Psychoanalysis (Id, Ego, And Superego) In X- Men: First Class Movie
Get PDFCharacters in literature are individuals portrayed in a story who possess moral, intellectual, and emotional qualities inferred from their dialogue and actions. They are the people within a narrative, each with their own distinct personalities and behaviors. Therefore, the characters hold an important role in a movie. The characters can be seen through the psychoanalysis approach. The researchers through this research aims to find out the Id, Ego, and Superego found in Erik Lehnsherr's character depicted in X-Men: First Class movie. The character of Erik Lehnsherr’s as a mutant attracts the interest of the researchers to use the psychoanalysis theory proposed by Sigmund Freud. The researchers conduct the research using qualitative method. After collecting and analyzing the data, the researchers found 23 data of Erik Lehnsherr’s id, ego and superego in the X-Men: First Class movie. There are 6 data of Id, 10 data of Ego, and 7 data of Superego. Based on the analysis, it is evident that Erik's Id manifests in urgent situations, particularly those related to his mother, whom he deeply cares for. On the other hand, Erik's Ego becomes apparent when he is in a calmer state, allowing him to approach situations more logically while still being influenced by his impulsive and aggressive tendencies. Furthermore, Erik's Superego emerges when he is confronted with situations that conflict with his personal moral code, which has been shaped by his traumatic past as a mutant
Spatiotemporal Monitoring of Air Quality (PM10, SO2, & NO2) in Semarang City Using Landsat Satellite Imagery
Get PDFAir quality is a critical environmental parameter, heavily influenced by local human activities. Intense human and industrial activities in large urban areas significantly degrade air quality, contributing to climate change and adversely affecting public health. Therefore, monitoring air quality in major cities is vital for ensuring environmental sustainability. This study aims to monitor air quality in the Mijen District of Semarang City, Indonesia, utilizing a spatiotemporal approach. The air quality parameters assessed in this study included PM10, SO2, and NO2, which were derived from Landsat 8 and Landsat 9 satellite imagery data. The analysis employed a spatiotemporal method based on the Global Moran’s I Index and the Local Indicator of Spatial Autocorrelation (LISA) to elucidate spatial distribution patterns and temporal trends. The results indicated that the air quality in the Mijen District of Semarang City—based on the parameters PM10, SO2, and NO2—largely met the Air Quality Standard Index thresholds. However, several locations exhibited significantly high pollution levels that formed clusters and showed temporal consistency. These high pollution levels were observed in specific land use areas, such as industrial zones, residential areas, and landfill sites. The lowest PM10 levels were recorded in April 2021 and June 2021, ranging from 0 to 19 µg/m3, with a spread over an area of 57 km2. The highest SO2 concentration was observed in August 2021, exceeding 300 ppm. Additionally, the highest NO2 distribution was also recorded in August 2021, with values ranging from 179 to 180 µg/m3
The Influence Of Recruitment And Selection On Employee Work Productivity At The Zhm Premiere Hotel Padang
Get PDFAbstracts--This aims to determine and analyze how much influence Recruitment and Selection have on Employee Productivity of The ZHM Premiere Hotel Padang. The research method used is descriptive quantitative. The sampling technique used was Total Sampling, with a sample of 100 respondents. The data analysis technique used is multiple linear regression, t test, F test, and the coefficient of determination. Based on the results of multiple linear analysis tests, Y = 41.547 + 0.040 X1 + 0.273 X2 + e. Based on the results of the t test, it was found that the recruitment variable had no significant effect on the work productivity of The ZHM Premiere Hotel Padang employees, the selection variable had a significant effect on the work productivity of The ZHM Premiere Hotel Padang employees. Based on the results of the F test with Fcount values 0.05, it was found that the recruitment and selection variables together did not have a significant effect on the work productivity of The ZHM Premiere Hotel Padang employees. While the results of the coefficient of determination show that the independent variable on the dependent variable is only 3.1%, the remaining 96.9% is explained by other variables not examined in this study.Keywords: Recruitment, Selection, Employee Productivit
Development Of Chemical Learning Module On Hydrocarbon Based On Guided Inquiry With Chemical Literation Of Students In SMK
Get PDFChemistry is one of the subject learned at the technical and business motor cycle of Vocational School. One of the sub material learned is hydrocarbon. Based on the interview with some of the teachers, it can be concluded that students' motivation and being active in learning process are still low. Therefore, researcher think that there should be a developing on learning module to increase students' encouragement. The purpose of this research is to develop a valid, practical and effective based on guided inquiry based with chemistry literacy. This is a research and development study using 4 D model consist of define, design, development and disseminate. The guided inquiry based module had been validated by three experts and tested to 2 chemistry teachers and 32 mechanic technical students at first semester of technical and business motorcycle of Vocational School to see the practical level and effectivity of the developed module. The data of validity and practicality testing is taken from the quetionnaire from teachers and students of technical and business motorcycle and which was descriptively analyzed with Momment kappa. The data of effectivity testing was taken from students' comprehension. Mean score of momment kappa formula for validity of guided inquiry based module is 0,48 dan based on the questionnaire for lecturers, the mean score is 0.95. The mean score of students' questionnaire is 0.83. The highest mean score of effectivity testing of students comprehension is 83,2. Based on the result, it can be concluded that the guided inquiry based module is valid,practical and effective with meet the level of very high categor
Immunogenicity Of Boiled Pork Extracts And The Protein Band From SDSPAGE Of Fresh Pork Extracts
Get PDFThe aim of this study was to analyze the immunogenicity of boiled pork extract antigens and the isolate SDSPAGE protein bands of fresh pork. The antigens were injected subcutaneously, repeatedly at two-week intervals into two local rabbits. Antibodies were isolated two weeks after the last booster. Analysis of the immune response was carried out using the indirect immunoblot assay. The results of this study showed that boiled pork antigens were more immunogenic than SDSPAGE bands of fresh pork. The specific activity of the antibodies obtained was about six times higher than the antibodies from rabbits vaccinated with SDSPAGE bands of fresh pork extract. Whether the antibodies obtained can be used to develop meat adulteration authentication test kits still needs to be investigated
Gestion Endogène Et Changement Social : Vers Une Pluralité Des Normes Autour Du Lac Aheme Au Sud-Benin
Get PDFAfin de limiter l’exploitation incontrôlée du lac Ahémé par les populations riveraines, il a été institué un système endogène de gestion qui, avec ses normes et ses règles protège les ressources halieutiques. Mais, en face, le changement social et les impératifs de développement fragilisent les institutions sociales, et avec, les ressources naturelles. L'objectif de cette recherche est d’analyser l’évolution des représentations acteurs et les formes de négociation des normes autour de l’exploitation de ce plan d’eau. La recherche s’inscrit dans une approche qualitative. Elle combine à la fois, et en grande partie, les données primaires à travers notamment des entretiens individuels et des focus groupes, puis l'exploitation des données secondaires par la revue documentaire. Au total, 195 acteurs, constitués de femmes et d'hommes vivant dans les villages riverains du lac, d'autorités traditionnelles, religieuses, administratives, des membres d'associations villageoises et d’ONG, des pêcheurs autochtones et migrants ont été enquêtés.De ces résultats, il ressort que la densité démographique autour le lac Ahémé est accompagnées d’une évolution des représentations sociales. En conséquence, les ressources sont surexploitées malgré la sacralisation par endroits du lac. Finalement les acteurs sont en perpétuelle négociation des normes
Mobile Network Subscribers Market Share Evolution Of Telecommunication Companies In Senegal From 1996 To 2022
Get PDFThis research examines the evolution of market shares of telecommunications companies in Senegal over a period of 26 years, from 1996 to 2022. The study focuses on subscriber’s market share as a key indicator of mobile network operators' performance and competitiveness. It analyzes the mix market share for the three main mobile network operators (ORANGE, FREE, and EXPRESSO) consolidation periods, key success factors, and challenges faced by these companies in a dynamic and competitive environment.The analysis reveals a significant evolution in the telecommunications landscape in Senegal, marked by the emergence of new players, the advancement of technologies, the diversification of offerings, and the increase in connectivity. Major historical operators had to contend with growing competition, stimulating innovation and service improvement to meet changing consumer needs.Key events such as the introduction of 3G and 4G technology, had a significant impact on market share distribution and companies' differentiation strategies. Regulatory policies such as mobile telephony licensing, investments in infrastructure, brand changes, order entry, strategic partnerships, and operators’ number of years of experience also influenced the sector's competitive dynamics.In conclusion, this research highlights the complex and dynamic evolution of market shares of telecommunications companies in Senegal, highlighting the technological, strategic, and regulatory factors that have shaped this sector over the years
Stylistic Usage Of Hijab As Fashion Among Muslim Women In Southwestern Nigeria
Get PDFIslamic standard of modesty requires that Muslim women use hijab to cover their heads, face, and body in the presence of any male outside their family members. Though there are many types of head coverings for Muslim women, such as chador, hijab, khimar, niqab, shaylar, and burqa, hijab is the only one that is being used as fashion. In contrast, the rest are used as religious garments. As important as this head covering among Muslim women, there is a dearth of literature on hijab usage in southwestern Nigeria because it is not well studied. The study examines the stylistic usage of hijab as fashion among Muslim women in southwestern Nigeria. The study aims to describe the head covering as both religious and fashionable garments, eventually adding to knowledge of hijab usage. Methodologically, the study adopts a qualitative approach to collect the data while the descriptive method is used to gather information and observation without intervening. The findings reveal that hijab is not only used for religious purposes but also as fashion for ladies who want to be trendy
Identification des Parasites Intestinaux isolés chez les Personnes Diagnostiquées à l'Hôpital General de Référence de Makala à Kinshasa en R.D.Congo
Get PDFIntestinal parasites are widespread almost worldwide, and they are in large numbers in many regions, especially in Africa where promiscuity, lack of drinking water and sanitation facilities are felt. Indeed, according to estimates by the World Health Organization, the number of people infested with intestinal parasites is around 3.5 billion, and that of people suffering from parasitic diseases of the digestive tract is approximately 450 million. To produce this article, we used the experimental method that took place in the laboratory and concerned only coprological examinations. The results obtained indicate that more than half of the people diagnosed were parasitized by Ascaris lombricoides, i.e. 58.3%, followed by 30% of people who hosted Entamoeba histolytica and Necator americanus was isolated in 11.7% of the people diagnosed. Despite the efforts made to combat intestinal parasites in Kinshasa, the results of this study showed that these parasites remain a serious public health problem in our study environment