bluuebunny/crossref_metadata_2025 huggingface dataset:
EFEKTIVITAS PEMBELAJARAN MATEMATIKA MELALUI PENERAPAN PENDEKATAN PROBLEM POSING SETTING KOOPERATIF
Authors: Arriah Fathrul , Ahmad Nahdhatul Rugaiziah
Published: April 2023

Penelitian ini adalah penelitian eksperimen yang dilakukan di salah satu SMP kelas VIII SMP Di Kabupaten Bulukumba yang bertujuan untuk mengetahui kemampuan problem posing matematika siswa melalui pendekatan kooperatif.  Subjek penelitian ini adalah siswa Kelas VIII.A SMP yang berjumlah 23 orang. Pengambilan data dilakukan dengan menggunakan tes hasil belajar dan lembar observasi. Data yang terkumpul dianalisis secara deskriptif dan inferensial. Hasil yang diperoleh setelah diberikan tindakan yaitu: (1). Pada Pretes diperoleh skor rata-rata kemampuan problem posing matematika siswa adalah sebesar 58,47 dengan standar deviasi 3,82 dari skor ideal 65 dan berada pada kategori rendah, (2). Pada Postest, diperoleh skor rata-rata kemampuan problem posing  matematika siswa adalah sebesar 81,30 dengan standar deviasi 8,28 dari skor ideal 95 dan berada pada kategori tinggi. Peningkatan rata-rata dari  Pretest ke Postest menandakan adanya peningkatan kemampuan problem posing matematika siswa, (3). Jumlah siswa yang tuntas secara individu setelah diberikan perlakuan  sebanyak 22 orang siswa (95,7%). Dari persentase tersebut, dapat disimpulkan bahwa pembelajaran dengan pendekatan problem posing setting kooperatif efektif diterapkan dalam pembelajaran matematika matematika pada siswa Kelas VIII.A SMP.
Dynamic Diabetes Solutions: Physiologic Insulin Resensitization
Authors: Loveridge Brian , Tucker Tori , Laurent Melanie St , Hepford Scott , Alexander Michael , Lakey Jonathan RT
Published: April 2023

Diabetes is a disease currently affecting over 30 million Americans and is a leading cause of amputation, blindness, and chronic kidney disease. Treatment of diabetes with medications and lifestyle modifications alone have not eliminated these complications, because in part they lack the ability to restore the periodic cycles and rest periods of insulin that exist in healthy physiology. Insulin is excreted in a cyclical pattern by the pancreas, in a hormonal oscillation that is critical to maintain adequate insulin sensitivity at the insulin receptor level. Precision administration of exogenous insulin bio identically matching this physiologic profile is more effective at controlling blood glucose level and reducing complications of diabetes than standard drug therapy and lifestyle modifications alone. This matching of physiological insulin helps reduce inflammatory cascades responsible for a number of diabetic complications. In this article, we will review how insulin is secreted and functions physiologically and highlight a dynamic insulin delivery modality that mimics normal secretion profiles. This biomimicry reduces insulin exposure, which reduces the progression to or worsening of insulin resistance. We will review how various protocols have been enhanced resulting in reduction of diabetic complications, utilizing physiologic insulin resensitization (PIR).
Diabetes Mellitus: Once More About Diagnostics
Authors: V.A Mirzazada , S.S Sultanova , S.M Ismayilova , A.R Huseynova , A.Z Aliyeva , U.K Imamaliyeva , N.H Huseynzade , A.F Azadova
Published: April 2023

Background: Early identification and precise diagnosis of diabetes is crucial. However, determination of diabetes cases leads to psychological, social and economic consequences. Due to this fact, diagnosis of diabetes mellitus should be validated. However, there are some discrepancies in diabetes diagnostics and defining criteria. Objective: The purpose of this study was to investigate whether the criteria random plasma glucose ≥200 mg/dL (≥11.1 mmol/L) in the presence of the classic hyperglycemic symptoms “ is reliable and is there need to change this criterion for diagnosis of diabetes mellitus. Material and Methods: Specificity of diabetes classic symptoms were investigated by literature analysis for identification of these symptoms’ frequency in other diseases and conditions. The data of 134 people were analyzed in this study. Venous plasma glucose researched at fasting and 30, 60, 90, and 120 minutes after a 75.0-g glucose load (Precision PCx Medi Sense, Abbot, USA), as well as A1c levels (SDA1c Care, SD Biosensor, Korea). Statistical analysis was performed by using Fischer exact. Results: Diabetes classic symptoms analysis demonstrated their non specificity. Specificity of random plasma glucose ≥ 250 mg/dl was statistically highly significant (p < 0.00001) than random plasma glucose ≥ 200 mg/dl: 100% vs 69%. Conclusion: In the presence of classic hyperglycemia symptoms it is recommended to diagnose diabetes by using random plasma glucose ≥ 250 mg/dl.
Overweight and Obesity in Students of the Primary School “Miguel Hidalgo y Costilla”. Polyuc, Felipe Carrillo Puerto, Quintana Roo, Mexico
Authors: Monsreal Jose Franco , Chimal Hoy Brianda Estefania , Socorro Serralta Peraza Lidia Esther del , Sanchez Uluac María Selene , Flores Abuxapqui Javier Jesus
Published: April 2023

Background: The Body Mass Index also called the Quetelet Index is a measure (kg/m²) used as an indicator of the adequacy of weight for a certain height. The resulting value is interpreted as an indicator of different nutritional situations, both physiological (normal weight) and pathological (low weight, overweight and obesity). Objective: Evaluate the nutritional situation of the students of the “Miguel Hidalgo y Costilla” Elementary School of the Polyuc community of the Mayan municipality of Felipe Carrillo Puerto, Quintana Roo, Mexico, during the period from 6 de March de 2019 to 7 de December de 2020. Material and Methods: Descriptive cross–sectional epidemiological study with no directionality and prospective temporality. In the period from 6 de March de 2019 to 7 de December de 2020, 136 students from the “Miguel Hidalgo y Costilla” Elementary School were evaluated. The Mantel–Haenszel Chi–Square statistic (x²M–H) was used as a hypothesis test or test of statistical significance. Likewise, the Epi Info software for Windows, version 7.1.4.0, was used to obtain the values of both the x²M–H statistic and the probability (p). Results: Seventy–one (52.21%), 54 (39.71%), 9 (6.62%) and 2 (1.47%) students presented low weight, normal weight, overweight and obesity, respectively. Conclusion: It is concluded that the students of the “Miguel Hidalgo y Costilla” Elementary School have health problems with respect to their nutritional situation since 60.29% (82/136) have a pathological nutritional situation (low weight, overweight and obesity).
Determination of the Glycemic Index of a Dish based on Oyster Mushrooms and the Influence of its Consumption on some Biochemical Parameters of Diabetic Peoples
Authors: Etoundi Omgba Cunégonde B , Ngo Malang Charlotte L , Mbang Mbarga Audrey J , Tsala Messi Jean A , Gouado Inocent
Published: April 2023

The glycemic index (GI) is the ability of a food to vary postprandial blood sugar. Frequent consumption of high GI foods is believed to cause chronic hyperglycemia which worsens the complications due to diabetes. The search for low GI foods would be of great interest in the prevention of postprandial hyperglycemia. Our work therefore has focused on determining the GI of a dish based on Pleurotus pulmonarius and the influence of its consumption. The dish studied was sautéed Pleurotus mushrooms (P. pulmonarius) with unripe plantains. We included for this study after obtaining ethical clearance, thirty (30) male volunteers (15 diabetic subjects and 15 non-diabetic subjects) aged between 20 and 70 years old. We determined the influence of consumption on some biochemical parameters of the participants. To do this, we took blood samples at the beginning of the experiment (preprandial) and at the end of the experiment (postprandial). After obtaining the serum, we performed for each participant the lipid profile (total cholesterol, HDL cholesterol, LDL cholesterol and triglyceride) we determined cretinemia, transaminase and total protein increased in concentration at the end of the test experimentation. This work brings added value concerning the use of edible mushrooms in the management of type 2 diabetes. From this study, we can highlight the ability of the test dish to minimize excessively marked variations in postprandial glycemia in diabetics.
Comparative Study of the Functional Capacity of the Old Person with and Without HIV
Authors: Peixoto Isaura Romero , Martinez Accioly Alicia Rafaela
Published: April 2023

The 20th century recoded in its history two unprecedented worldwide phenomena: population aging and the transformation of a lethal pandemic by the human immunodeficiency virus into a chronic disease. Cross-sectional and analytical study that evaluated the functional capacity of the aged people with and without HIV, recruited for convenience from May/2018 to February/2020. Participants were 59 people with HIV and 61 people without HIV, of both sexes. Personal characteristics, life habits, comorbidities, geriatric clinical dimension and functional capacity among the aged with HIV and without HIV were compared. We found a higher prevalence of males, aged 60 to 65 years and low schooling in the HIV group, whereas in the HIV-free group, there was a predominance of females, age group above 70 years and higher level of formal education. Alcohol consumption, smoking, cannabis use and habitual condom use were more frequent among those with HIV. The prevalence of hypertension and polypharmacy was highlighted in elderly people without HIV. Functional capacity behaved without difference between the two groups.
PENINGKATAN PENGETAHUAN MASYARAKAT TENTANG KESEHATAN JIWA PADA SITUASI PANDEMIK COVID-19 DI DESA BONGKUDAI SELATAN
Authors: Wetik Syenshie , Laka Angela , Oroh Cindi , Sumilat Vervando
Published: April 2023

South Bongkudai Village is one of the villages under Moat District, East Bolaang Mongondow Regency. A pandemic situation causes people to experience various life difficulties, such as losing their jobs or sources of income and experiencing challenges in economic and other factors that impact all aspects of life. Providing education through health education about psychosocial problems that arise in pandemic situations is expected to increase residents' knowledge to become more familiar with psychosocial and psychosomatic disorders. It can strengthen physical and mental immunity so that Bongkudai Village becomes an area with an adequate level of readiness to adapt to new life behaviors. new normal) during this pandemic.
PENINGKATAN PELAYANAN KESEHATAN KOMUNITAS TENTANG MANAJEMEN SAMPAH DI DESA KAYUWATU KABUPATEN MINAHASA
Authors: Tiwatu Filia , Bisandorong Stensia
Published: April 2023

Improper waste management can harm oneself and the community. Garbage is a breeding ground for germs that become a source of infection that can transmit disease through food and drink. In addition, garbage can interfere with humans' cleanliness, beauty, and smell. With this community health service, it is hoped that it can provide an overview to the community, especially in Kayuwatu Village, so that they can be aware of waste management problems and solve them.
MENINGKATKAN SADAR WISATA MASYARAKAT DESA JIKO MELALUI SAPTA PESONA PADA MASA PEMULIHAN COVID-19
Authors: Porajow Christine , Kawatak Steven , Ngenget Stevanus , Indriyanto Machiko , Walansendow Yelly , Semuel Oktavianus , Lucia Roosalina
Published: April 2023

The Tourism Awareness and Sapta Pesona Program is a program that should be continuously supported during the COVID-19 pandemic so that Indonesia is able to compete in the tourism sector. As the government starts reopening this sector for tourists, people in tourist destinations must also continue to be motivated to be good hosts in order to provide satisfaction to the people who visit by practicing tourism awareness in implementing Sapta Pesona. The Team for Community Service from the Faculty of Tourism of Universitas Katolik De La Salle Manado realizes that academics are also responsible for the success of the Tourism Awareness and Sapta Pesona Program by sharing knowledge and discussing with the community in Jiko Village, Bolaang Mongondow Timur Regency, with the aim of motivating the local community to participat, especially in the implementation of the elements of cleanliness and beauty. In this activity, the construction of trash bins was also carried out and its impact was then evaluated three months after the implementation of the activity. The results of this activity were that there was a lack of support from tourism stakeholders, such as the government and tourism organizations, the community already had awareness to maintain the cleanliness and beauty of tourist destinations, and the construction of trash bins had a positive impact towards the community.
PEMBERDAYAAN IBU RUMAH TANGGA DALAM MEMBANGUN USAHA RUMAHAN DI KELURAHAN SINDULANG SATU
Authors: Tandaju Teddy , Korompis Merry , Kawatak Steven
Published: April 2023

Women, who are members of the Family Welfare Empowerment (PKK) program, play a key role in improving the welfare of their families and surrounding communities. Unfortunately, many of them still have not obtained adequate knowledge and skills to start and develop businesses that may increase their family’s economic welfare and create new jobs. Realizing this, several members of the Entrepreneurship Teaching Team from De La Salle University Manado took the initiative to hold a Community Service activity in Sindulang Satu Urban Village with the local members of PKK program as participants. In this activity, the implementation methods are as follows: presentations of materials, presentations of ongoing business by students, discussions, and questionnaires distribution. The result of this activity is the improvement in participants' knowledge and motivation to become entrepreneurs, shown by their enthusiasm during presentation and discussion sessions. The results of the questionnaire also show that the main motivation that drives local PKK women to become entrepreneurs is the desire not to depend economically on their husbands and parents.
Effects of Face Masks on Emotion Interpretation in Socially Anxious Individuals
Authors: Mathis Lexie
Published: April 2023

Previous research has found emotion interpretation biases in individuals with social anxiety (SA) when emotions are ambiguous. Additionally, research has shown that face masks impair emotion recognition. The present within-subjects, quasi-experimental study examined the impact of face masks on emotion identification in individuals with SA. After pre-screening using a brief SA scale (the SIAS-6, a shortened version of the Social Interaction Anxiety Scale), 92 undergraduate students with qualifying SA scores completed an emotion identification task. The task included images of masked and unmasked individuals expressing four emotions. Results indicated impaired accuracy for all types of masked trials. When examining incorrect choice selections, it was found that neutral masked faces were misinterpreted as sad or fearful significantly more than their unmasked counterparts, suggesting a mask-specific interpretation bias. In relation to previous research on SA and hypervigilance for threat faces, when considering all masked trials, accuracy was highest for masked angry trials. While this study was limited in that it did not include a non-anxious group, the results have interesting implications. Importantly, the present findings suggest that some previously identified SA-related emotion interpretation characteristics persist when viewing masked faces (e.g., hypervigilance for threats), while others do not (e.g., default bias for interpreting neutral as hostile). Future research should focus on elucidating the causes of the present results, which are important to this population and clinicians, as socially anxious individuals attribute greater social cost to negative emotions; thus, misinterpretation of emotions as negative may be detrimental to their mental health.
Predicting Satisfaction With Life and Affect Balance Using Trait Interactions
Authors: Gibson Jacob , Pedersen-San Miguel Chloe , Letzring Tera
Published: April 2023

There is robust support for the finding that subjective well-being (SWB) relates positively to extraversion, agreeableness, and conscientiousness; and negatively to neuroticism (Soto, 2015), but little research has examined how SWB can be predicted from interactions between traits. It was hypothesized that conscientiousness, extraversion, and agreeableness would moderate the relationship between neuroticism and SWB, as measured by satisfaction with life (SWL) and affect balance (AB). In Study 1, self-reports of the Big Five personality traits, SWL, and AB were collected via MTurk (N=1035). Hierarchical regression analyses were used to predict SWL and AB from interactions between traits. The relationship between neuroticism and SWL was moderated by conscientiousness (b=.15, p=.02) and extraversion (b=11, p=.03), while the relationship between neuroticism and AB was moderated by conscientiousness (b=.09, p=.02) and agreeableness (b=.09, p=.03). Positive personality traits (defined as extraversion, agreeableness, and conscientiousness within this study) were positively related to SWB at high levels of neuroticism, but unrelated to SWB at low levels of neuroticism. This was explored further using a student population in Study 2 (N=151), and the results were partially replicated. This study highlights the importance of considering more than one trait at a time when predicting important outcomes such as SWB.
The Impact of a Brief Humanizing Intervention on Prejudice Towards Transgender Individuals
Authors: Touma Sawaya Aya , McCarty Megan
Published: April 2023

Transgender individuals face an abundance of stigma and prejudice from society, making them vulnerable to discrimination, violence, increased stress, and mental health deterioration (Hughto et al., 2015). This study looked at the extent to which a brief humanizing intervention can decrease prejudice against transgender individuals using methods designed to reduce social desirability bias. Unlike past work, the current study implemented a control group that was not subjected to any intervention. Participants (N=302) were randomly assigned to one of three conditions: the control condition, the transman letter condition, and the musician letter condition. Only cisgender participants within the gender binary were used in the analysis (N=293). The humanizing intervention involved having participants read a letter written by a transgender man in which he comes out to his parents. The musician letter condition involved having participants read a letter written by a young man telling his parents that he is quitting college to pursue a career in music. The control condition did not include any letter. Participants then responded to various dependent measures such as attitudes towards transgender individuals and empathy. Few effects of the intervention were observed, which were inconsistent with past research. However, the results of this study showed an impact on participants’ perception of how parents should react to their children coming out and a decrease in the standard gender differences in empathy. Thus, the results offer a nuanced understanding of the extent to which humanizing interventions can reduce prejudice towards transgender individuals.
A relevância da Barragem Jenipapeiro do Município de Olho D'água - PB para o desenvolvimento da Agricultura familiar na Comunidade Riacho do Meio.
Authors:   , Carvalho Costa Maria Helena
Published: April 2023

A presente pesquisa insere-se nos estudos de agricultura familiar e distribuição de recursos hídricos. Tem como objetivo apresentar as principais prerrogativas do desenvolvimento rural, partindo da relevância das práticas de agricultura familiar e da distribuição de recursos hídricos em atividades agrícolas. Algumas considerações são feitas no tocante a política agrícola familiar brasileira, como forma de embasamento teórico para melhor verificar as particularidades do campo de estudo. Dessa forma, procurou-se entre outros objetivos, caracterizar a política agrícola da comunidade Riacho do Meio, localizada no município de Olho D‟água-PB, bem como a influência que a Barragem Jenipapeiro possui para a agricultura familiar da referida área. Os resultados alcançados indicam que a agricultura promovida na comunidade ainda apresenta aspectos pouco desenvolvidos, porém, representa a principal fonte de renda do local. Verificou-se também, a ineficiência da distribuição das águas da Barragem Jenipapeiro para as práticas agrícolas locais. Espera-se contribuir com as políticas públicas voltadas à resolução da problemática da agricultura familiar para pequenos municípios de modo que permita aos agricultores a melhor utilização dos recursos hídricos, que por sua vez são fatores determinantes para um bom plantio.
Análise das informações prestadas no portal da transparência dos municípios de Sumé, Prata e São Domingos do Cariri-PB.
Authors:   , da Silva Gonçalves Ianne
Published: April 2023

Na situação atual, a transparência pública é um dos pilares que regem a gestão pública, o qual permite aos cidadãos o acesso às informações públicas, onde as entidades públicas possuem a responsabilidade de proporcionar a transparência de sua administração e a sociedade tem o direito ao acesso às informações para o melhor acompanhamento da administração pública, como forma de efetivação da cidadania. O presente estudo tem o objetivo de identificar a transparência das ações da gestão pública dos municípios Sumé, Prata e São Domingos do Cariri, localizados no Cariri Paraibano, por meio da análise dos seus portais eletrônicos, no que diz respeito ao cumprimento às exigências da Lei Federal nº 12.527/2011 (Lei de Acesso à Informação Pública). Considerando a análise dos portais eletrônicos, demonstrou-se que os três municípios avaliados encontram-se em realidades bastante diferentes. Com base nos resultados, destaca-se que a Prefeitura Municipal de Sumé apresentou as melhores práticas de gestão pública, cumprindo maior número de exigências estabelecidas pela Lei, demonstrando maior agilidade e transparência no atendimento ao cidadão em relação aos demais municípios, no entanto, precisa melhorar com relação à qualidade. Por outro lado, a avaliação dos sites das Prefeituras Municipal de Prata e São Domingos do Cariri apresentam aspectos parciais, deixando de atender a alguns pontos que a Lei estabelece. Portanto, contempla-se que à medida que a transparência pública aumenta, acarreta o avanço do controle do conhecimento, da fiscalização do acesso, da participação e, consequentemente, a ampliação da capacidade da administração pública e da garantia e direitos individuais.
Análise de satisfação dos usuários sobre os serviços fornecidos pelo Núcleo de apoio à Saúde da Família - NASF, em Monteiro - PB.
Authors:   , Jeanne Vieira de Helena
Published: April 2023

A inserção da Estratégia de Saúde da Família (ESF) no Brasil constitui uma inovação institucional no âmbito dos cuidados relacionados ao bem-estar físico e mental, nesse contexto, o Núcleo de Apoio à Saúde da Família - NASF tem o papel de ampliar a consolidação básica e dar suporte as ESFs. Essa investigação objetivou compreender experiências de usuários do Núcleos de Apoio à Saúde da Família - NASF, localizado em Monteiro – PB, no que concerne aos serviços oferecidos e à qualidade dos trabalhos desenvolvidos. Trata-se de um estudo conduzido mediante uma abordagem quanti-qualitativa e de observação sistemática, por meio de entrevistas semiestruturadas com 40 usuários dos serviços disponibilizados no NASF, considerando os anos de 2017 e 2018. O processamento e a interpretação do material discursivo evidenciaram análises referentes aos aspectos formais de assistência, humanização e acolhimento, infraestrutura e especialidades ofertadas. Desse modo, observou-se que os usuários percebem o acolhimento e ambiência, e dispõem de boa interação entre profissionais, há ainda, disponibilidade medicamentosa e humanização como os principais elementos presentes no NASF, ao visar promover atendimento de qualidade em saúde física e mental. Conclui-se que, não obstante à presença de entraves estruturais e à morosidade em processos de exames, os aspectos da assistência, evidenciados por esse Núcleo e apontados pelos usuários, corroboram com os ideais do SUS e sinalizam que a reorientação deste modelo de atenção tem obtido relevantes resultados quanto à promoção da saúde e prevenção de doenças no referido município.
A cidade de Serra Branca – PB na percepção de seus moradores.
Authors:   , Dantara Pereira Santos Katryne
Published: April 2023

Trata-se de um estudo exploratório de abordagem quantitativa, que teve por objetivo avaliar como se apresenta a cidade de Serra Branca, Paraíba na percepção de seus moradores. Definida como um lugar geográfico onde se instala a estrutura político-administrativa de uma sociedade, a cidade se configura como um sistema de distribuição e de troca, sendo formada por diferentes segmentos e por elementos humanos que desempenham diferentes atividades. No Brasil, antes havia uma maior congregação de pessoas nos grandes centros, fator que em muito contribuía para aumentar as desigualdades regionais e desencadear uma série de problemas sociais. Atualmente, registra-se um processo bastante diferente: quem reside nos pequenos centros, na maioria das vezes, neles permanecem. E, para estes se deslocam uma boa parcela da população dos grandes centros em busca de ‘refúgio’, de tranquilidade e paz. Diante dessa nova realidade, as pessoas que residem nas cidades interioranas passaram a perceberem de uma forma diferente os espaços urbanos, avaliando o que estes possuem e indicando o que precisam para serem mais agradáveis. Definida pelos entrevistados como sendo uma cidade alegre e festiva, sem o estresse do cotidiano urbano, Serra Branca possui necessidades comuns às cidades interioranas do Nordeste brasileiro, necessitando de uma maior ação por parte de seus governantes para ter não somente um maior desenvolvimento como também para garantir que sua população tenha uma melhor qualidade de vida. Verificou-se que há entre os entrevistados o entendimento que a existência de mais empregos locais também contribuiria para a melhoria desses parâmetros.
Promoting Human Rights Awareness Initiatives: Perspectives on Media Framing and Community Actions to Eradicate Cultural Practices against Women in South East Nigeria
Authors: I.P. Ihechu , D.C. Afulike , U.E. Ndukwe
Published: April 2023

This study set out to investigate the perspectives of journalists in south-east Nigeria on the framing and community actions towards promoting human rights awareness initiatives for eradicating cultural practices against women. Relying on the above problem, objectives were set to determine journalists' awareness of the cultural practices against women in south-east Nigeria, ascertain the level of audience exposure to framed stories in the media about cultural practices against women; and thus evaluate journalists' perspectives on promoting human rights awareness initiatives through framing of the practices. Using the survey method, a sample of 276 journalists and a sample of 384 members of the media audiences were studied using the questionnaire as an instrument for data collection. In the end, it was found that the journalists were adequately aware of the practices under study. It was also found that the audiences were well exposed to media frames on the practices. Finally, findings revealed two perspectives on the subject matter which included approaches to framing the practices including (highlighting the negative implications of practices, co-opting NGOs, interpreting contents, among others) and community actions to eradicate the actions (employing innovative methods to shift share beliefs about the practices, enthroning educated leaders, infusing enlightenment into school curricula, and so on). It was therefore recommended that the media, policy makers, NGOs, community leaders, among others should make efforts to sustain the present advocacy to change all cultures that demean the dignity of women and other members of the society.
Interpretation of Radiometric Anomalies over Some Parts of the Lower Benue Trough Nigeria, Using High Resolution Aero-radiometric Data (HRAR)
Authors: G.N. Egwuonwu , K.N. Ejike , C.C. Onyekwelu
Published: April 2023

The aero-radiometric data of these areas were employed to investigate the radioactive properties of rocks, with the aim of interpreting the concentrations of the principal radioactive elements (40K, 238U, 235U and 232Th) and possible hydrothermally altered zones that can host iron rich minerals. The radiometric data was subjected to enhancement techniques of producing concentration maps of Potassium, Thorium and Uranium. The total count map, ratio map of K/Th and the ternary image map were also produced to aid the interpretation process. The results from the Potassium, Thorium and Uranium maps displayed variations of high, moderate and low concentrations. The concentrations of these elements further mapped geology by distinguishing different rock types across the area. The total count map revealed the combined effects of the three radioactive elements, whereas the K/Thratio map revealed hydrothermally altered areas, reflecting at the NW-SW, NNE-SSW, SE, central portions and spots at the NE borders. Furthermore, the ternary image map revealed the combined intensities of the radioactive elements and possible hydrothermally altered environments, identified as (AE) on the image map.
Persepsi Pengguna Layanan Sistem E-Procurement Pengadaan Barang dan Jasa Pada PT. Sapta Sari Tama
Authors: Rizal Muhammad Alde , Saidatuningtyas Ifa , Melati Vutikha Cahya
Published: April 2023

The COVID-19 pandemic has caused the demand for health goods and services to increase. Medicine is one of the important components in the success of the implementation of health efforts. This study aims to evaluate the implementation of electronic procurement of goods and services at PT Sapta Sari Tama, a drug distributor. The results of this study are useful for evaluating the implementation of electronic procurement (E-Procurement) and the basis for developing the E-Procurement system there. This research uses validity test to determine valid variables, reliability test (alpha coefficient) to assess the consistency of answers from sources. Descriptive statistics are used to see the distribution of respondents' answers. The results showed that development can be done on the X5 variable which describes the informativeness of the E-procurement system used.
Penerapan Pengendalian Persediaan Bahan Baku Ban dengan Model Probabilistik dan Sistem Kuantitas Pemesanan Tetap
Authors: Alfi Rizki , Harif Muhammad , Pharmayeni Pharmayeni
Published: April 2023

Inventory of raw materials is very important for the smooth production of the company and meet consumer demand for the company in market demand. The demand for tire production fluctuates and causes the demand for products not to need to be met to order, due to the shortage of raw materials. To solve the shortage of raw materials, the company holds special orders in consideration of savings in ordering the cost of ordering messages. To overcome the shortage of raw materials, the company holds special orders or sudden orders which will increase the cost of the message. The purpose of this study is to determine the optimum ordering of raw materials to minimize total inventory costs by using a probability model of raw material inventory control with a fixed order quantity system (Q method). From the results of research using the probabilistic model of inventory control method Q method, obtained the optimal order quantity (q*), reorder point (rop), and safety stock (ss) with total inventory costs more efficient compared to the total inventory costs of the company's current policies. what is to be achieved in inventory control is to minimize the cost of ordering, and the cost of savings to the company.
Decision Support System Menggunakan Analytic Hierarchy Process dan Analytical Network Process Pada Pemilihan Supplier Bahan Baku
Authors: Mouludi Isra , Ramdhanti Muthia , Jamsan Firdaus
Published: April 2023

This study aims to determine the best supplier for the selection of raw materials for NPK fertilizer based on three suppliers as an alternative in making supplier selection decisions with 4 criteria (price, quality, service, and delivery) and sub-criteria that have been determined and then arranged into a hierarchical structure. The use of Super Decision software which contains analytical capabilities from AHP (Analytic Hierarchy Process) and Analytic Network Process (ANP) can analyze priority and selectability levels by prioritizing the weight of each criterion against other criteria. the most influential in the selection of suppliers of raw materials for NPK fertilizer with the first priority being the quality criteria, the second priority being the price criteria, the third priority being the delivery criteria and the fourth priority being the service, based on the criteria and sub-criteria in the supplier selection being the main priority, supplier PT.A with the highest weight value 0.56492.
Pengukuran dan Analisis Kinerja Laboratorium Kalibrasi Untuk Meningkatkan Daya Saing Perusahaan
Authors: Rahmawati Dita Indah , Yuliawati Evi
Published: April 2023

Calibration Laboratory PT. ABC is one of the calibration specialist laboratories, offering calibration service facilities and tool sales via a job order system under the warranty and ISO departments. Currently, performance measurement in the Calibration Laboratory is based on incoming order targets being met by the warranty and ISO departments. This method of measuring performance cannot be used as a benchmark. As a result, the Calibration Laboratory must implement an adequate performance measuring method to determine whether or not the company's performance has been satisfactory. This study uses the Sink's Seven Performance Criteria technique to assess firm performance based on seven criteria: productivity, effectiveness, efficiency, quality, profitability, work life, and innovation. The performance measurement results obtained using this method can identify 23 Key Performance Indicators (KPI) at PT. ABC's Calibration Laboratory (Persero). The use of a scoring system based on the Objective Matrix (OiMAX) and the Traffic Light System is known to obtain a performance index of 7.78 for the Calibration Laboratory of PT. ABC in 2021. According to the Traffic Light System, Calibration Laboratory's total performance value is in the yellow category, indicating that average performance has also not met the aim. Management must strive harder to improve its performance by selecting criteria that are poor and have a high weight. They are then assessed and suggestions for improvement are made using Fishbone diagrams and 5W+1H.
Analisis Kualitas Pelayanan Berbasis Preferensi Konsumen: Studi Kasus Pada Bengkel Kendaraan Roda Empat
Authors: Purba Humiras Hardi , Debora Fransisca , Sitorus Tosty Maylangi , Aisyah Siti , Jaqin Choesnul
Published: April 2023

Product and service quality factors are important aspects of business continuity. Consumers will abandon low-quality products and services. Consumers will feel satisfied if all aspects of the products and services are appropriately accommodated. Product and service quality have different tendencies because service quality dimensions are more complex than product quality. This study aims to analyze the quality of customer service at auto repair shops based on consumer preferences. Assessment of the level of satisfaction and consumer expectations of each attribute is done by filling out a questionnaire to identify the gap between the level of importance and level of performance. The consumer's assessment of each indicator of the auto repair shop is carried out through a questionnaire filled out to the consumer to find out the gap between the level of importance and the level of performance. The analytical method used is Importance Performance Analysis–IPA showing that the attributes of auto repair shops that need to be improved are [P1] improving the repair period as promised, [P2] Procedures and managerial capabilities in providing adequate service, [P3] Results following consumer recommendations, and [P4] Knowledgeable workshop managers and staff, [P5] Service speed from responsiveness quality dimensions, [P11] Credibility and honesty of workshop managers and staff, [P12] Clarity of communication and information to consumers. The priority of quality attributes of auto repair shops that will be improved can provide alternative development priorities between human resources and limited equipment servicing.
Penerapan Model ARIMA Dalam Memprediksi Penjualan Produk Minuman Teh Botol Sosro Ukuran 350 mL
Authors: Wahyuni Iga Dwi , Yuniarti Trisna , Rapi Amrin
Published: April 2023

This study aims to provide suggestions for improvements in overcoming stock shortages of soft drink products using a forecasting method. The results of such forecasting will be compared with the forecasting methods used by the company at this time. The Autoregressive Integrated Moving Average (ARIMA) method was used in this study to improve the accuracy of demand forecasting in soft drink products (TBE 350 mL K12 Aseptic). This study used product sales data for the period January 2016 to January 2022. Based on the results of calculation and data processing, it is known that the best model is ARIMA (2,1,0) with a MAPE value of 35,966%. Meanwhile, the method used by the company has a MAPE value of 36.569%. It Shows that the ARIMA method (2,1,0) has better forecasting accuracy compared to the company's forecasting method with a MAPE difference of 0.604%.  The validation results were obtained forecasting in January 2022 with ARIMA (2,1,0) of 22,569 cartons, while the company's method was 21,194 cartons. This shows that the ARIMA method (2,1,0) is more accurate in forecasting because it has a forecast value in the January 2022 period close to the actual demand value, which is 23,193 cartons. The ARIMA model equation (2,1,0) for forecasting soft drink products in the following month is Zt = 0,494Zt-1 + 0,210Zt-2 + 0,297Zt-3
Pemisahan Butanol dari Campuran ABE Menggunakan Software Aspen Plus: Pengaruh Refluks Rasio terhadap Kandungan Butanol
Authors: Nury Dennis Farina , Febriyanto Pramahadi , Ismi Lisa Anggraini , Hidayah Rahmat Taufik
Published: April 2023

Production of acetone-butanol-ethanol (ABE) through the fermentation process is one alternative that needs to be developed. Less economical in the ABE fermentation process is the difficulty of the separation process from the fermentation product and the by-products of the reaction. Among the separation process methods, such as extraction, distillation, adsorption, and gas stripping, the distillation method is still the most widely used method in the ABE separation process. The purpose of this study was to provide recommendations for predicting good ABE separation and producing optimum operating conditions to produce high % butanol content. Which is then simulated using Aspen Plus V11 software. This study varied the reflux ratio in the distillation column and the decanter operating temperature. The results showed that butanol purity reached 90.33% in the radfrac 1 column operated at a pressure of 1.3 atm with a reflux ratio of 5, the location of the 7th feed stage and the number of stages 11. Then proceed to the purification stage in the radfrac column 2 which is operated at a pressure of 2 atm with a reflux ratio of 5, the location of the 4th stage feed and the number of stages 5. The decrease in the reflux ratio of the radfrac column causes a decrease in the butanol content at the bottom so that the purity of butanol also decreases and decreases % recovery or recovery of butanol. This is also followed by the location of the feed stage, which is getting higher, and the number of stages is increasing.
Pengaruh Kondisi Temperatur Pirolisis Tandan Kosong Kelapa Sawit Terhadap Komposisi Produk Tar
Authors: Nury Dennis Farina , Luthfi Muhammad Zulfikar , Zullaikah Siti
Published: April 2023

Oil palm empty fruit bunch (EFB) is one of the biomass wastes that have a great potential of a bioenergy resource due to its natural properties, such as high calorific value. The conversion of EFB biomass into valuable biofuels can achieved through biochemical and thermochemical processes. Tar (bio-oil), the liquid product from the pyrolysis is one of the most attractive biofuels. The study aims to determine the effect of temperature process of pyrolysis EFB on its tar production under droptube reactor. The results showed that maximum tar yield was 43,80% obtained at 500 °C. The EFB tar produced at 500 °C was also determined to have a higher of phenol compound at 51,9%. The high phenolic content indicates its potential to be used for the production of renewable phenolic resins. Hence, the present work of pyrolysis of EFB presents itself as a promising method to produce phenol rich tar (bio-oil) from biomass waste.
Kinetika Leaching Ni dan Fe dari Bijih Laterit Tipe Limonite Morowali
Authors: Prameswara Gyan , Tyassena Flaviana Yohanala Prista , Pasaribu Monita , Febryanzha Indhyca Novitha
Published: April 2023

Nickel (Ni) deposits are depleting, while demand for the metal is increasing. To address this problem, valuable metals such as Ni and Fe can be extracted from secondary sources such as limonite-type laterite ores. The goal of this study was to investigate the influence of leaching temperature on Ni and Fe recovery, as well as the best kinetic model to represent the leaching process of these metals. Temperature has a considerable impact on the leaching process of Ni and Fe. Increasing the temperature from 30 to 90 oC can increase the recovery of Ni by 50% and Fe by 70 %. Ni and Fe recoveries were highest at 93.21 % and 95 %, respectively. Kinetic analysis of the two metals' leaching processes was also performed. It was discovered that the diffusion process controls Ni leaching, which can be represented using the Zhuravlev kinetic model, whereas chemical reactions on the surface of the unreacted core controls Fe leaching. The activation energies for leaching Ni and Fe are 36.53 and 40.32 kJ/mol, respectively. 1930 exp ((-36.53 kJ/mol)/(R.T))t=[(1-X)-1/3)-1]2 is the kinetic equation for Ni leaching. The kinetic equation for Fe leaching is 3903 exp ((- 40.32 kJ/mol)/(R.T)t=1-(1-X)1/3.
Kajian Pemanfaatan Cangkang Sawit Sebagai Pengganti Solar Industri Pada Sistem Thermal Oil Heater di Pabrik Resin
Authors: Dina Sari Farah , Hutajulu Poltak Evencus , Nur Taufiq Bin , Karo-karo Justaman Arifin
Published: April 2023

The National Energy Policy to develop the use of renewable energy has opened up opportunities for industry to develop the use of biomass. A study on the use of palm shells as a substitute for industrial diesel in a thermal oil heating system at a natural rubber resin factory in North Sumatra has been carried out. All information and data on the operation of TOH were obtained through secondary data collection and direct discussions in the field. The secondary data obtained include the type and specification of the heater, the characteristics of the thermal oil (type, flow rate, temperature inlet and outlet of the heater), fuel consumption/hour and the characteristics of palm shells. From the study conducted, it can be concluded that during the process of heating thermal oil which takes place gradually in the TOH system using industrial diesel, it has a heat capacity of 1,500,000 kcal/hour, but the maximum heat that is useful for heating thermal oil is 694,396 kcal/hour with maximum thermal efficiency is 80.69%. Estimated consumption of palm kernel shells required to heat thermal oil on the assumption of 70% thermal efficiency as a substitute for energy supplied by industrial diesel is 237 kg/hour. The savings from this fuel replacement is estimated Rp.3.286.800.000/year.
Pengaruh Variasi Kondisi Operasi pada Kolom Distilasi Ekstraktif terhadap Sifat Fisis Pelarut Hidrokarbon Terdearomatisasi
Authors: Prasetiawan Haniif , Rengga Wara Dyah Pita , Fardhyanti Dewi Selvia , Triwibowo Bayu , Chafidz Achmad
Published: April 2023

Solvent is one of the important components in chemical processes. The type of solvent that is often used in the paint and coating industry is a hydrocarbon-based solvent which consists of a diverse complex mixture of liquids and contains aliphatic, alicyclic and aromatic (C5-C8) elements. Aromatic hydrocarbons are environmental pollutants that are known to be toxic, carcinogenic and mutagenic, so a hydrocarbon-based solvent with an aromatic content of less than 1% is needed. An appropriate separation method for separating aromatic and nonaromatic components having close boiling points is extractive distillation with a sulfolane entrainer. In this study, a distillation system with a sulfolane entrainer was run using the process simulation software Aspen Plus with the aim of understanding the effect of the amount of sulfolane, feed stage and number of stages on the physical properties of hydrocarbon-based solvents. This simulation is focused on the variation of the ratio of sulfolane: crude feed (7:1, 7.5:1, 8:1, 8.5:1), the variation of the feed stage (10th stage to the 35th stage) and the variation of the number of stages (70, 75, 80). It was found that the number of stages did not affect the density and flash point of the solvent. An increase of number of stage will decrease the solvent flash point and density. Significant decreament also can be found when the sulfolane to crude feed ratio is increased. However, the physical properties of the current dearomatized solvent is close to the properties of commercial product namely SBP 65/70 from one of oil and gas companies.
Karakterisasi Kimia CMC (Carboxymethyl Cellulose) Umbi Ganyong
Authors: Samah Selfa Dewati , Futery Renny , Putri Gustiarini Rika , Armin M. Ikhlas
Published: April 2023

Carboxymethyl Cellulose (CMC) a compound made from starch of tubers ganyong flour with added methanol, propanol and water. Four process involving alkalization process, karboksimetilasi, neutralization in the process of making the CMC. Carboxymethylization process involving alkazation process neutralization in the proess of making the CMC. Alkazation is reaction between cellulose and soda solution (alkaline) to become alkaline cellulose (cellulose is soluble in soda solution). Carboxymethylization is rection between alkaline cellulose and sodium chloro acetate compound to form sodium Carboxymethyl Cellulose (Na.CMC) which froms a viscous solution. Neutralization is solution neutralization process and the last prcess is the manufacture of CMC. Two processes were first made is Alkazation and Carboxymethylization by reacting 22 g NaOH and 20 g ClCH2COONa respectively. Acetic acid is added is used in the neutralization process, during the heating process in the oven. The overall results for each degree of substitution; pH; viscosity; water content; NaCl concentration; purity; Redemen of cellulose: Rendemen of CMC ganyong; 0.81; 8; 7 cP; 5% 2.01%; 97.99%; 2%; 98.5% respectively. CMC ganyong from the research that has been tested by FTIR spectra test results CMC ganyong can be seen in the picture there are similarities peaks that appears indicating CMC canna generated in this study have the same chemical molecules CMC commercially for food chemical codex is at 732 cm-1 while the peak of commercial CMC 725 cm-1 is carboxyl group and -CH. Based on the research results obtained, it can be concluded that the CMC is of good quality as a filler to make chemical bond stronger.