bluuebunny/crossref_metadata_2025 huggingface dataset:
Correlation of energy intake and physical activity with visceral fat in obese office
Authors: Dwi Sasri Fika , Witjaksono Fiastuti , Sudarsono Nani Cahyani
Published: August 2023

Background: Obesity is a global health problem with a continuing trend of increasing population. A positive energy balance, where energy intake is more remarkable than energy expenditure, will cause fat accumulation. Obesity due to the expansion of fat, especially visceral fat, is a risk factor for noncommunicable diseases. Office employees can become obese with a high-calorie diet and a sedentary lifestyle. This study aims to determine the correlation between energy intake and physical activity with visceral fat in obese office workers.

Methods: This cross-sectional study was conducted on obese office staff at RSCM. Energy intake was assessed with 3 x 24-h food recalls. Physical activity was assessed with the GPAQ questionnaire, and visceral fat was considered with multifrequency BIA.

Results:  A total of 66 study subjects with an average age of 41 years were women and included in the category of obesity degree I. Almost all subjects had abnormal visceral fat volume with a median of 2.95 L (1.3 – 8.5 L). Most have more energy intake, with an average intake of 2196 ± 467 kcal. Most had moderate physical activity with a median value of 1850 MET (120 – 4680 MET). There was a moderate correlation between energy intake and visceral fat (r=0.554, p<0.001) and a weak correlation between physical activity and visceral fat (r=-324, P=0.008).

Conclusion: There was a moderate correlation between energy intake and visceral fat and a weak correlation between physical activity and visceral fat.
Purple cabbage (Brassica oleracea L.) cookies as nutraceutical product for Maintaining Healthy Heart
Authors: Ningrum Salsabila Eka Setia , Lestari Ludy Wiji , Berlianti Reza Maulinda Nur Cahya , Khasanah Asyifaul , Rahmah Faza Saiqur , Rahmayanti Mayu
Published: August 2023

Purple cabbage (Brassica oleracea L.) is one of the agricultural products that contain anthocyanins which have the potential as antioxidants. The amount of production in Indonesia is still relatively low due to a lack of consumer demand and a lack of innovation in its utilization. So it is necessary to make new innovations, one of which is by processing it into flour to make Almond Crispy which is then given the name "Ceamond Crispy". The reason Almond Crispy is made, because it is easy to process and can be consumed for a long time. This study aims to determine the anthocyanin compounds contained in processed food "Ceamond Crispy". Almond Crispy is made with a ratio of purple cabbage flour and moderate protein flour in 3 formulations namely formulation 1 (1:2), formulation 2 (1:1), and formulation 3 (2:1). This research was conducted by organoleptic test, anthocyanin, nutritional content. Therefore, it can be concluded that the organoleptic test results obtained brown color, taste like chocolate, vanilla aroma, and crunchy texture. The anthocyanin test results obtained positive results in all three formulations. The results of the nutritional content test showed that the 3 formulations contained the same protein, carbohydrates (starch), and carbohydrates (glucose), but did not contain fat. The results of the preference test showed that formulation 3 was the most preferred formulation. Thus, proving that "Ceamond Crispy" can be received with a positive response by the community and has the potential to be developed into an innovative food that is beneficial for the heart. Thus, proving that "Ceamond Crispy" is safe for consumption by the public and can be developed into innovative foods that are beneficial for heart health.
Effect of probiotic supplementation on wound healing in postoperative patients
Authors: Rahma Cut Thalya Alissya , Wulandari Yohanessa
Published: August 2023

Background: Delayed wound healing, particularly in chronic wounds, is a significant global public health issue. The World Health Organization (WHO) reports that over 6 million people in the United States experience delayed wound healing annually, resulting in a healthcare cost of $25 billion USD. Probiotics, known for their anti-inflammatory properties, have potential in influencing skin immunity by facilitating the transfer of cytokines and immune cells from Peyer's patches to the skin. Nevertheless, the precise impact of probiotics on postoperative wound healing remains an area with limited research.

Objective: Determine the effectiveness of probiotic supplements in wound healing in patients with surgical wounds

Method: Literature search is done by advanced searching on Pubmed, Cochrane, Scopus, and EBSCOhost with eligibility criteria determined by the author.

Results: There were three articles relevant to clinical questions and eligibility criteria that had been established, consisting of one systematic review article from the randomized controlled trial (RCT) study and two RCT articles. The SR/MA article includes good-quality RCT studies. The SR/MA article showed insignificant results on the effect of probiotic administration on healing. The RCT article showed significant results on the effect of probiotics on surgical wound healing, but the confidence level was low in one of the articles.

Conclusion: Probiotic supplementation on wound healing in postoperative patients is not conclusive. This can be affected by the type of probiotic strain, dosage, duration of administration, and location of the surgical wound.
SINTESIS GEOPOLIMER DENGAN BAHAN DASAR KAOLIN CAPKALA SEBAGAI ADSORBEN ION Pb(II) DALAM LARUTAN (SYNTHESIS OF GEOPOLYMERS WITH BASE MATERIALS KAOLIN CAPKALA AS ADSORBENT ION Pb(II) IN SOLUTION)
Authors: An Nisa Nur Ridha , Syahbanu Intan , Rahmalia Winda , Nurlina Nurlina
Published: August 2023

Geopolymer synthesis was carried out using kaolin, for the adsorption of Pb (II) ions in solutions. Kaolin is used by Kaolin Capkala from Bengkayang Regency, West Kalimantan. This kaolin was first modified into metakaolin. The scaling up of geopolymers is carried out by making an activating solution, namely by mixing NaOH and Na2SiO3. The activating solution is mixed into metakaolin. The mass composition of each component in the geopolymer: metakaolin of 94,5 grams, Na2SiO3 of 57 grams, NaOH of 12 grams, and H2O of 30 grams. The formed geopolymers are tested for their adsorption ability against Pb(II) ions. The research results show the success of geopolymer formation as indicated by FTIR and XRD characterization results. Based on the FTIR results, several indications of successful geopolymer formation are seen in the shift and widening of the Si-O absorption peak at wave number 1109 cm-1 for kaolin to 1058 cm-1 for metakaolin and 1016 cm-1 for geopolymer; the appearance of O-C-O bond absorption in CO32- at 1362 cm-1 in geopolymer; and a shift in absorption of Al-O (Al (VI), wherein kaolin it is indicated by a wave number of 536 cm-1 while in metakaolin it is characterized by a wave number of 544 cm-1 and for geopolymer a wave number of 553 cm-1 indicates it. XRD diffractogram of the formation hump's appearance shows the amorphous characteristics of metakaolin and geopolymer at around 2θ 26o-35o. The application of geopolymer for Pb adsorption shows that Pb(II) can be adsorbed well in geopolymers with the maximum adsorption capacity of 2.77 mg/ g obtained at various concentrations of 40 ppm.
KAJIAN KETAHANAN BETON DENGAN TAMBAHAN CAMPURAN FLY ASH DAN LIMBAH KARBIT DALAM MEDIA ASAM DAN GARAM (DURABILITY STUDY OF SELF COMPACTING CONCRETE WITH ADDED A MIXTURE OF FLY ASH AND CALCIUM CARBIDE WASTE IN ACID AND SALT MEDIUM)
Authors: Stevani Illen , Zaharah Titin Anita , Silalahi Imelda Hotmarisi
Published: August 2023

Cement is one of the building blocks of concrete. However, it releases about one ton of carbon dioxide (CO2) gas for every ton of cement produced. Therefore, it is necessary to replace cement in the manufacture of concrete. It is known that a mixture of fly ash and calcium carbide waste has a chemical composition that resembles cement containing silica, alumina, and calcium oxide compounds so that it has the potential to replace cement in making self-compacting concrete. This research was conducted by utilising fly ash waste and carbide waste as additional materials to replace the use of cement by 35% in self compacting concrete. The composition of the waste used in the concrete mix in this study consisted of 25% fly ash waste and 10% calcium carbide waste. Analysis of the elemental composition of self-compacting concrete containing fly ash and calcium carbide waste was obtained from XRF data, the compressive strength of self-compacting concrete samples was tested, their resistance in acid and salt media was studied through the results of compressive strength test analysis, then compared with self-compacting concrete containing 100% cement. The XRF results showed that the elemental composition of the mixture of fly ash, calcium carbide waste, and cement was similar to that of cement alone, but the CaO and SiO2 content of the mixture was still higher than that of cement alone. Based on the compressive strength test analysis results, it was found that the compressive strength values of the self-compacting concrete samples were lower than the compressive strength values of the control of self-compacting concrete samples (cement only). Self-compacting concrete samples soaked in acid and salt media for 28 days showed a decrease in compressive strength, both in self compacting concrete containing a mixture of fly ash, calcium carbide waste, and cement, and concrete containing only cement. The compressive strength values of the fly ash and calcium carbide waste on self-compacting concrete samples in this study were at the range of 28 MPa to 29 MPa, still within the SNI 2847-2019 quality standard, which is the normal concrete quality standard with a compressive force of 15-30 MPa, even though they have been exposed to acid or salt. This allows efforts in replacing cement in self compacting concrete by adding the composition of fly ash waste and calcium carbide waste.
Designing Electrocatalysts for Hydrogen Evolution in Saline Electrolyte Using Rapid Synthesis on Carbon Paper Supports
Authors: Sullivan Connor , Jeong Sangmin , King Melissa , Ross Michael
Published: August 2023

Generating hydrogen from brackish or seawater could enable flexible energy generation, de-centralized electricity storage, and decreased reliance on energy-intensive water purification for hydrogen evolution reaction (HER). Platinum is often the most effective electrocatalyst for HER, however, it is not as stable or efficient in nonideal electrolytes, such as seawater or non-acidic media. In this work, we investigate the activity and stability of binary electrocatalysts in brackish and neutral electrolytes. Using a rapid carbon-paper-based electrochemical synthesis method, we systematically assessed 45 unary and binary electrocatalysts. Four standout binary electrocatalyst materials were identified that showed either comparable or superior activity and stability to Pt in saline-containing electrolyte. Most notably, the 1Ni:1Pt electrocatalyst had a similar overpotential (60 mV) to a Pt control (50 mV), but with greater stability. Finally, we show that this carbon-paper-based synthesis method is scalable for synthesizing and assessing electrocatalysts. This work provides important insight both for rapid synthesis and comparison of new electrocatalysts, but also for the specific goal of performing HER in non-ideal aqueous conditions.
Geometry and local environment of surface sites in Vanadium-based Ziegler-Natta catalysts from 51V solid-state NMR Spectroscopy
Authors: Sabisch Sebastian , Kakiuchi Yuya , Docherty Scott R. , Yakimov Alexander V. , Copéret Christophe
Published: August 2023

Since its emergence over 50 years ago, the structure of surface sites in Ziegler-Natta catalysts, which are responsible for a major fraction of the world’s supply of polyethylene (PE) and polypropylene (PP), has remained elusive. This is in part due to the complexity of the systems that involve multiple synthetic steps and components, namely the MgCl2 support, a transition-metal chloride, and several organic modifiers, known as donors, that are used prior and in some instances during the activation step with alkyl aluminum. Due to the favorable NMR properties of V and its use in Ziegler-Natta catalysts, we utilize 51V solid-state NMR spectroscopy to investigate the structure of VOCl3 on MgCl2(thf)1.5. The resulting catalyst shows similar ethylene polymerization activity as its Ti homologs. Using carefully benchmarked DFT calculations, the experimental 51V NMR signature was analyzed to elucidate the structure of the surface sites. Using this approach, we demonstrate that the 51V NMR signature contains information about the coordination environment, i.e. the type of ancillary and ligands as the morphology of the MgCl2 support. Analysis of the NMR signatures shows that the adsorption of VOCl3 on MgCl2(thf)1.5 generates a well-defined hexacoordinated V-oxo species containing one alkoxy and four chloride ligands, whose local geometry results from the interaction with an amorphous MgCl2 surface. This study illustrates how NMR spectroscopy, which is highly sensitive to the local environment of the investigated nuclei, here V, enables us to identify the exact coordination sphere and to address the effect of support morphology on surface site structures.
Solvation of Nanoions in Aqueous Solutions
Authors: Dullinger Philipp , Horinek Dominik
Published: August 2023

In recent years it has been increasingly recognized that different classes of large ions with multiple valency have effects conceptually similar to weakly solvated ions in the Hofmeister series, also labeled by the term chaotropic. The term “super- chaotropic effect” has been coined, because these effects are much stronger pronounced for nanometer-sized ions, whose adsorption properties often resemble typical surfac- tants. Despite this growing interest in these nanometer-sized ions, a simple conceptual extension of the Hofmeister series towards nanoions has not been achieved, because an extrapolation of the one-dimensional surface charge density scale does not lead to the superchaotropic regime. In this work, we discuss a generic model that is broadly appli- cable to ions of nearly shperical shape and thus includes polyoxometallates and boron clusters. We present a qualitative classification scheme, in which the ion size appears as a second dimension. Ions of different size but same charge density differ in their bulk solvation free energy. As the ions grow bigger at constant surface charge density, they become more stable in solution, but the adsorption behavior is still governed by the surface charge density. A detailed molecular dynamics simulation study of large ions that is based on a shifted Lennard-Jones potential is presented that supports the presented classification scheme.
Metabolic syndrome (mets) as one of the major comorbidities of chronic obstructive pulmonary disease (copd)
Authors:   Ss. Cyril and Methodius University in Skopje, Medical Faculty, Buklioska Ilievska Daniela , Baloski Marjan ,   City General Hospital ,,8mi Septemvri“ – Skopje, Macedonia, Bushev Jane ,   City General Hospital ,,8mi Septemvri“ – Skopje, Macedonia, Minov Jordan ,   Ss. Cyril and Methodius University in Skopje, Medical Faculty, Mickovski Ivana ,   City General Hospital ,,8mi Septemvri“ – Skopje, Macedonia, Gigovska Dimova Irena ,   City General Hospital ,,8mi Septemvri“ – Skopje, Macedonia, Eftimovska Otovikj Natasha ,   Ss. Cyril and Methodius University in Skopje, Medical Faculty, Milosheska Radmila ,   .City General Hospital ,,8mi Septemvri“ – Skopje, Macedonia
Published: August 2023

Aim: We aimed to investigate the association between COPD and MetS, the relation to the severity of airflow limitation. Methods: This is a cross-sectional study including 220 patients with initially diagnosed COPD (IG), aged 40 to 75 years and 58 non-COPD subjects matched by age, smoking status, body mass index, as controls (CG). All study participants underwent anthropometric measurements, fasting blood sugar (FBS), lipid profile, pulmonary evaluation (dyspnea severity assessment, baseline and postbronchodilator spirometry, gas analyses, chest X-ray). Results: Results presented statistically significant difference in presence of MetS in COPD patients compared to controls (32.27% vs 10.34%; P=0.0009). According to the GOLD classification, the frequencies of MetS in COPD patients were categorized in stages I, II, III, IV (17.54%, 37.10%, 34.62%, 40.82%, respectively). The proportion of patients with increased glycemic values was: a) GOLD1 - 18 (31.58%); b) GOLD 2 - 32 (51.61%); c) GOLD3 - 29 (55.77%); and d) GOLD4 - 31 (63.27%). There was no significant difference between IG and CG patients regarding HDL level. According to arterial hypertension the highest proportion was observed in GOLD3 - 22 (42.31%) followed by GOLD4 - 20 (40.82%), and GOLD3 - 22 (35.48 %), smallest in GOLD1 - 17 (29.82%). Conclusion: We found higher prevalence of MetS in patients with COPD even in early COPD stages compared to non-COPD. Our findings suggest an urgent need to develop comprehensive strategies for prevention, screening and start of treatment in early stage.
Značaj trikuspidalne regurgitacije i velicine desne pretkomore kod bolesnika sa umerenim i teskim stepenom hobp
Authors:   Univerzitetski Klinički centar Niš, Klinika za pulmologiju, Niš, Srbija, Marinković Marija , Topalović Marija ,   Univerzitetski Klinički centar Niš, Klinika za pulmologiju, Niš, Srbija, Jović Kristina ,   Univerzitetski Klinički centar Niš, Klinika za pulmologiju, Niš, Srbija, Nastasijević Borovac Desa ,   Univerzitetski Klinički centar Niš, Klinika za pulmologiju, Niš, Srbija, Bjelaković Marko ,   Univerzitetski Klinički centar Niš, Klinika za pulmologiju, Niš, Srbija, Božanić Borislav ,   Univerzitetski Klinički centar Niš, Klinika za pulmologiju, Niš, Srbija, Rančev Nikola ,   Univerzitetski Klinički centar Niš, Klinika za pulmologiju, Niš, Srbija, Šajnović Stefan ,   Univerzitetski Klinički centar Niš, Klinika za pulmologiju, Niš, Srbija, Ljubenović Bojan ,   Univerzitetski Klinički centar Niš, Klinika za pulmologiju, Niš, Srbija
Published: August 2023

Introduction: Chronic obstructive pulmonary disease (COPD) is one of the leading causes of death in the world. The Republic of Serbia, with over half a million sufferers (4.2% of the population), belongs to the group of countries with the most frequent incidence of this disease. Due to increased resistance in the airways and pulmonary circulation, pulmonary hypertension, cor pulmonale chronicum and right and left ventricular dysfunction develop over time. OBJECTIVE: To determine the frequency and significance of tricuspid regurgitation as well as the size of the right atrium in relation to the degree of COPD. Methodology: Characteristic changes of the tricuspid valvular apparatus are assessed by Color Doppler echocardiography in a two-dimensional view. This study included 70 patients with chronic obstructive pulmonary disease. The study included 48 patients out of the initial 70 (68.57%), who were selected as patients diagnosed with tricuspid regurgitation on echocardiographic examination. They were divided into four g holes according to the GOLD criteria and there were 12 subjects in each group. Results: Kruskal-Wallis showed that there is a significant difference for FEV1 among all groups (p=0.05), except for FEV1 values between the third and fourth groups. According to the Kruskal-Wallis test, there is a statistically significant difference for the frequency of TR in mild versus moderate and severe COPD. There were significant differences for TR between moderate and severe COPD disease (p<0.05). By comparing the values of the right atrium, there is no statistical significance for the values of the right atrium among the groups of patients with COPD (p>0.05). Conclusion: In order to timely detect and prevent the cardiac complications of COPD, all patients should undergo color doppler echocardiography in a certain period of time
Skrining karcinoma pluća u AP Vojvodini - Lung cancer screening in Vojvodina province
Authors:   Institut za plućne bolesti Vojvodine, Sremska Kamenica, Srbija, Đekić Malbaša Jelena , Bokan Darijo ,   Institut za plućne bolesti Vojvodine, Sremska Kamenica, Srbija, Zarić Bojan ,   Institut za plućne bolesti Vojvodine, Sremska Kamenica, Srbija, Kovačević Tomi ,   Institut za plućne bolesti Vojvodine, Sremska Kamenica, Srbija, Stojanović Goran ,   Institut za plućne bolesti Vojvodine, Sremska Kamenica, Srbija, Dragišić Dragan ,   Institut za plućne bolesti Vojvodine, Sremska Kamenica, Srbija, Kuhajda Ivan ,   Institut za plućne bolesti Vojvodine, Sremska Kamenica, Srbija
Published: August 2023

Introduction Better survival of lung cancer (LC) patients is possible if the diagnosis is made early in the disease course. Low-dose CT in a high-risk population for developing LC enables cancer detection in the earlier stages of the disease and improves survival. Method LC screening with low-dose CT was performed at the Institute for Pulmonary Diseases of Vojvodina (IPBV) from September 2020 to December 2022. People aged 50-74 years, ex-smokers (started smoking 10 years ago) and active smokers with 30 pack-years, or 20 pack-years with additional risk factors, were included. We retrospectively analyzed screen population characteristics, screening results (according to Lung-RADS score) and definite findings of suspicious nodules by histological type and LC stage by gender. Results During the observed period, a total of 3432 LDCT scans were performed, of which 62.3% (2138) were baseline LDCT. Suspicious and highly suspicious nodule findings (Lung-RADS 4) were observed in 196 (9.2%) subjects. The emphysema was registered in 709 (33.2%) subjects. The LC detection rate was 1.8% (40/2138). 88.5% (23/26) of confirmed LC were detected after the initial LDCT, while the remaining 11.5% (3/26) were established after the follow-up period. 75% (30/40) of LC were in stages I to IIIA. Non-small cell lung cancer (adenocarcinoma 60.0% (24/40), squamous cancers 22.5% (9/40) and other non-small cell cancers (NOS) 5.0% (2/40)) accounted for 85.7% (35/40), while small cells lung cancer was present in 12.5% (5/40). Conclusion Most LC cases were detected in the early stage of the disease. Therefore, screening for LC should cover the high-risk population in the territory of the entire Republic.
Pineapple (Ananas comosus [L.] Merr.) Cv. queen peel herbal tea with a variety
of drying temperatures: bioactive compounds, antioxidant activity and
antimicrobial activity
Authors: Dewi Y.S.K. , Simamora C.J.K.
Published: August 2023

Pineapple peel is a by-product that is potentially developed to be herbal teas. The research
objectives were to find out the proper drying temperature on total biochemical content,
antioxidant and antimicrobial activity, and sensory properties of pineapple peel herbal tea.
The pineapples peel herbal tea was prepared by drying peels in a cabinet dryer for 12
hours at 50, 60 and 70oC. Qualitatively, phytochemical screening was analyzed for the
presence of flavonoids, alkaloids, tannins, phenols, and terpenoids. Quantitatively, total
phenols, flavonoid, and alkaloid were determined by the colourimetric method. The DPPH
methods applied to measure free radical scavenging activity, and the diffusion method was
determined antimicrobial activity. The phytochemical screening showed the absence of
terpenoid in pineapple peel teas dried at three different temperatures. The drying
temperature at 60oC and 70oC produced total bioactive compounds (phenolic, flavonoid,
and alkaloid) better than 50oC. Furthermore, the most significant antioxidant activity
against DPPH was obtained from the product dried at 60oC with an IC50 of 448.31 ppm.
All those herbal teas were suitable for the growth suppressing of Bacillus subtilis and
Candida albicans. This study found that pineapple peel tea herbal with 60oC drying
temperature was the most significant value based on bioactive components, antioxidant
and antimicrobial activity, which are considered potential herbal tea products.
РЕАЛІЗАЦІЯ МОЖЛИВОСТЕЙ ЦИФРОВИХ ОСВІТНІХ СЕРВІСІВ І РЕСУРСІВ В УМОВАХ РОЗВИТКУ ТЕХНОЛОГІЙ ЗМІШАНОГО НАВЧАННЯ
Authors: Пономарьов О. С.
Published: August 2023

Статтю присвячено реалізації можливостей цифрових освітніх сервісів і ресурсів в умовах розвитку технологій змішаного навчання. Вона висуває мету вивчення цього питання – розкрити потенціал цифрових інструментів в освітньому процесі та визначити їх переваги в змішаному навчанні. Стаття розпочинається постановкою проблеми, у якій вказується на необхідність використання цифрових освітніх сервісів і ресурсів, аналізуються попередні дослідження та публікації, що стосуються цієї проблеми. Особлива увага приділяється невирішеним аспектам цієї проблеми, які становлять центральну частину статті. Далі презентується мета статті, яка полягає у введенні нових фактів, висновків, рекомендацій та закономірностей, пов’язаних з реалізацією цифрових освітніх сервісів і ресурсів у змішаному навчанні. Ця мета виокремлюється як новаторська та відмінна від сучасних підходів до проблеми. Основна частина статті пропонує виклад матеріалу дослідження з обґрунтуванням отриманих наукових результатів. У цьому розділі розглядаються основні принципи та можливості цифрових освітніх сервісів і ресурсів, як-от використання цифрових платформ, інтерактивність навчання та індивідуалізація процесу. У заключній частині статті надаються висновки та перспективи подальших розробок у цьому напрямі. Висновки підсумовують отримані результати дослідження та підтримують основну ідею статті про значущість цифрових освітніх сервісів і ресурсів у змішаному навчанні. Також наголошується на необхідності подальшого розвитку цифрової освіти і сприянні інноваційним підходам до освітнього процесу.
Penerapan Terapi Murottal Al-Qur’an (Al-Kahfi) Untuk Menurunkan Tekanan Darah Pada Lansia Hipertensi
Authors: Setyawati Setyawati , Aisah Siti
Published: August 2023

Hipertensi mempunyai angka prevalensi yang tinggi di negara Indonesia. Pencegahan hipertensi diperlukan untuk untuk mencegah terjadinya peningkatan angka prevalensi. Terapi murottal Al-Qur’an terbukti banyak digunakan untuk menurunkan tekanan darah pada kasus hipertensi. Tujuan dari studi kasus ini adalah mengetahui penurunan tekanan darah pada lansia dengan hipertensi menggunakan terapi murottal Al-Qur’an. Studi kasus ini menggunakan metode deskriptif dengan pendekatan proses asuhan keperawatan dengan penerapan terapi murottal Al-Qur’an (surah Al-Kahfi ) yang diputar melalui headphone dan dilantunkan oleh Ali abdur rahman al – huthaify selama 31 menit 27 detik yang dilakukan pada 2 lansia yang terdiagnosa hipertensi dengan pelaksanaan terapi dilakukan selama 3 hari. Hasil studi kasus ini menunjukkan rerata tekanan darah kedua klien sebelum terapi 152/92,5 mmHg dan sesudah terapi menjadi 145,5/89,5 mmHg. Kedua klien mengalami rerata penurunan tekanan darah sistolik dan diastolik, rerata penurunan sistolik 6,5 mmHg dan rerata penurunan diastolik 3 mmHg. Berdasarkan hasil studi kasus ini dapat disimpulkan bahwa terapi murottal Al-Qur’an dapat menurunkan tekanan darah pada 2 lansia dengan hipertensi. Diharapkan terapi murottal Al-Qur’an (Al-Kahfi) dapat diterapkan oleh masyarakat untuk menurunkan tekanan darah.
Factors associated with chronic headache among adults: results from a Ravansar noncommunicable disease cohort study
Authors: Rezaeian Shahab , Hamzeh Behrooz , Darbandi Mitra , Najafi Farid , Shakiba Ebrahim , Pasdar Yahya
Published: August 2023

Background: Headache is the most common disorder of the central nervous system, and one of the most prevalent noncommunicable diseases. Aims: We aimed to determine factors associated with chronic headache among adults in the Islamic Republic of Iran. Methods: This was a cross-sectional study that recruited 10 063 participants from the baseline data of the Ravansar noncommunicable disease cohort study in western Islamic Republic of Iran in 2021. Participants who had headaches for ≥ 15 days per month for ≥ 3 months were considered as having chronic headache. Logistic regression was used to examine the associations. Results: The prevalence of chronic headache was 10.49% (n = 1054), and was significantly higher among females (14.55%, n = 769) than males (5.98%, n = 285) (P < 0.001). The risk of chronic headache among married females was 73% higher than among single females. Among male smokers, the risk of chronic headache was 1.47 times higher than among non-smokers [95% confidence interval (CI): 1.05, 2.06]. The risk of chronic headache among depressed males was 2.59 times higher than among non-depressed males (95% CI: 1.28, 5.22); and among depressed females the risk was 2.38 times higher than among non-depressed females (95% CI: 1.76, 3.23). Among males who lived in rural areas, the risk of chronic headache was 84% lower than among those who lived in urban areas; and among females who lived in rural areas it was 81% lower than those who lived in urban areas. Being menopausal and having normal sleep were significantly associated with lower risk, while comorbidity was associated with higher risk, of developing chronic headache. Conclusions: Depression, urban residence, smoking, comorbidity, and being married were associated with an increase in the risk of developing chronic headache, while higher education level, menopause and normal sleep were associated with a decrease in the risk of developing chronic headache.
Status of Memory Strategies Use among Medical English Students
Authors: Cui Hongmei , Kaur Naginder
Published: August 2023

High exchange of medical information worldwide requires students to improve their medical English language skills to compete globally. However, it is known that language skills cannot be used effectively without sufficient vocabulary knowledge. In medical English vocabulary learning, students often feel overwhelmed and lack motivation in learning this type of lexis. Research shows that the difficulty of medical English lies in vocabulary learning although the use of strategies can significantly improve the level of vocabulary memorization. In view of this, this study aimed to investigate medical English students’ use of memory strategies in vocabulary learning, using a questionnaire survey. A total of 500 medical undergraduates from Ningxia Medical University in China were selected as participants. The findings show that Chinese medical students apply memory strategies at an average level. The most frequently used memory strategy by Chinese medical English students is the repetition strategy, while the least frequently used is keyword strategy. Significant differences were found between male and female students’ use of spelling, chunking, repetition and use of word lists and association strategies. There are also significant differences in comprehensive use of strategies among students of different language proficiency levels. Thus, it is suggested that teachers invest more time in teaching memory strategies and students practice medical English vocabulary more frequently in a natural environment to improve their vocabulary levels and English proficiency.
Digital Language Learning through Instructional design by using Tubequizard in EFL Classroom
Authors: Muthmainnah Muthmainnah , Darmawati Besse , Sidik Umar , Tahir Saidna Zulfikar Bin , Al Yakin Ahmad , Hasan Hasan
Published: August 2023

Abstract. In today's information technology-integrated education, designing teaching activities for digital learning and flexibly using technology tools is the most important issue. The design of authentic materials and materials in English as a second or foreign language via Tubequizard's innovative web has a significant impact on language learners at the university level, according to this paper. Applying a mixed method, this study highlighted the undergraduate students’ perceptions of their experience with Tubequizard as ELT materials during COVID 19. By using purposive sampling, this study sample involved 71 students and five students for an online interview at the computer science faculty of Universitas Al Asyariah Mandar located at West Sulawesi, Indonesia. By conducting an online survey, the instruments of this study used a questionnaire and interviews. The findings of this study resulted in Tubequizard content being helpful to students to engage and motivate them in learning English, and their respondents strongly believe that Tubequizard is a technology innovation for lecturers in designing their teaching materials to be more interesting, easy to understand, Tubequizard materials according to the student’s needs, supported accelerate learning, suitable for all English skills, engage students in active and autonomous learning, expand students’ knowledge, meet positively students expectations in English class, encourage students to think creatively and critically, and suitable to give ideas for EFL classroom than the traditional model. Thus, it can be concluded that for teaching foreign languages, authentic and culturally appropriate materials are essential.Keywords: Digital language learning, developing materials, EFL, Technology and Tubequizard
An Investigation of EFL Students’ Vocabulary Size and Level at an Indonesian Private Tertiary Institution
Authors: Siregar Fenty L , Henni Henni
Published: August 2023

Abstract. Having good vocabulary knowledge is essential for every student who learns a new language. However, there are only limited previous research projects which have studied the development of English language students’ vocabulary knowledge. Thus, this current study investigated English students’ vocabulary progress of participants who studied at a private tertiary institution in West Java, Indonesia. The participants came from three batches: 2018, 2019, and 2020 to find out the difference of development of vocabulary among them after studying English for two semesters. In its investigation, this study used two different instruments: the Vocabulary Size Test and the Vocabulary Level Test which respectively were created by Nation & Beglar (2007) and Webb et al. (2017). The findings show that after two semesters, the most improved vocabulary size occurred to participants from batch 2019.  On average, the vocabulary size achieved after two semesters is enough to read more advanced texts. However, the average score of their vocabulary level test shows that the high-frequency words were not yet mastered, with a decrease on the average score of 2020 students. The finding might imply that there should be more intervention in the teaching and learning of high-frequency words.Keywords: EFL Students, Vocabulary Size, Vocabulary Level
INVESTIGATING THE STRUCTURAL AND SURFACE PROPERTIES OF COPPER AND NICKEL COMPLEXES FLUORINE-BASED SALEN TYPE SCHIFF BASES
Authors: Kansız S.
Published: August 2023

Two new transition metal complexes, NiL1 (1) and CuL2 (2), with formulations C18H12F6N2NiO4 and C18H12CuF6N2O4, respectively, were synthesized through the slow evaporation method in ethanol. The synthesized complexes were extensively characterized using X-ray diffraction, Fourier transform infrared spectroscopy, and UV-Vis spectroscopy techniques. X-ray crystallographic analysis revealed that the Ni(II) and Cu(II) salen complexes consist of double deprotonated tetrafunctional chelating ligands, namely L1 for NiL1 and L2 for CuL2, along with the corresponding metal cations, Ni+2 and Cu+2. The asymmetric unit of NiL1 comprises half of the molecule, while the asymmetric unit of CuL2 consists of a single molecule. In the crystal lattice, the molecules of both complexes are interconnected through C–H···O and C–H···F hydrogen bonds. Additionally, weak π···π interactions contribute to the formation of a layered structure in both complexes. To gain further insight into the intermolecular interactions, Hirshfeld surface analysis was employed, enabling the identification of atom locations with potential for hydrogen bonding and providing a quantitative assessment of these interactions in the complexes. The analysis revealed that the dominant contributions to the Hirshfeld surface originated from F···H, H···H, and O···H contacts in both NiL1 and CuL2 complexes.
IoT Raspberry Pi Based Smart Parking System with Weighted K-Nearest Neighbours Approach
Authors: Sayeed Md Shohel , Abdulrahim Huzaifah , Abdul Razak Siti Fatimah , Bukar Umar Ali , Yogarayan Sumendra
Published: August 2023

Due to the limited availability of parking slots in parking areas, drivers often have difficulty finding an empty parking slot. The number of parking slots available at a particular location is usually less than the number of vehicles. Hence, drivers spend a lot of time looking for vacant parking slots, which eventually delays the completion of their tasks, such as paying bills, attending a meeting, or visiting a patient at the hospital, etc. There are a couple of parking guidance systems that have been highlighted by the other researchers, but most of them lack real-time, convenient guidance. This research proposed a smart parking guidance system made of an IoT Raspberry Pi combined with an Android application that makes use of the weighted k nearest neighbours for positioning the vehicle. This was achieved through the use of Wi-Fi signal strength indicator fingerprinting, allowing for real-time navigation and parking detection. In order to achieve real-time parking over the internet, Raspberry Pi hardware and the ThingSpeak IoT cloud with ultrasonic sensors are used in the proposed method. An Android application was involved in this parking detection system, which adopted IoT approaches to estimate the location of users in real-time and provide routes using route-finding techniques to assist drivers in finding their desired parking slots. Data from the sensors was processed and translated into the Raspberry Pi using the Python programming language. They were sent using the Message Telemetry Transport protocol to send parking data to the ThingSpeak IoT cloud in real-time. This data was displayed via the Android app. The user is then able to view each available parking slot, acquire the route, and be directed with high accuracy to the parking slots of their choice. In this study, advanced sensing and communication technologies were used together with the weighted k nearest neighbours algorithm for positioning and wayfinding in order to improve parking guidance accuracy. Based on the experimental results, the proposed system showed a lower average error rate of 1.5 metres in comparison to other positioning techniques, such as GPS, or other similar algorithms for positioning, such as maximum a posteriori, which have shown average errors of 2.3 metres and 3.55 metres, respectively, a potential increase of more than 35% from the previous error rate. Doi: 10.28991/CEJ-2023-09-08-012 Full Text: PDF
Creep Behavior of Fiber Reinforced Mortars and Its Effect to Reduce the Differential Shrinkage Stress
Authors: Sangadji Senot , Safitri Endah , Arifin Muhammad Z. , Kristiawan Stefanus A.
Published: August 2023

This research aims to develop durable repair materials that can resist shrinkage cracking by exploring the role of creep in reducing shrinkage stress. In this regard, the creep effect can only be quantified if an accurate creep prediction model and theoretical analysis of the shrinkage stress in the patch repair system exist. For this purpose, the research was carried out in the following sequences: first, the research investigated the short-term creep of the patch repair materials containing accelerator and micro-synthetic fibers in the 0.00–0.12% volume fraction range. This short-term creep was measured on five-cylinder specimens (having a diameter of 75 mm and a height of 275 mm). Three specimens were used to determine the deformation of the repair material under unloading conditions, while those remaining were used to determine the total deformation under loading conditions. The amount of creep deformation was determined by taking away the unloaded (shrinkage) and instantaneous (elastic) deformations from the total deformation of the loaded specimens. Secondly, a modified prediction model of ACI 209R-08 is introduced to accurately capture the rate and magnitude of the observed creep of the repair materials. Finally, a formulated theoretical analysis of shrinkage stress in the patch repair system was proposed to examine how creep potentially reduces the repair material's cracking tendency. The results show that the asymptotic value of the creep curve is attained at an earlier age and that its magnitude is greater than that of most concrete. The modified ACI 209R-08 prediction model can closely estimate the repair materials' creep behavior. The best-fit line, residual values, and coefficient of error analyses confirm the modified model's prediction accuracy. The analysis of tensile stress development in the repair layer suggests that creep can reduce stress by up to 50%. With such a reduction, the repair material is expected to be durable in resisting shrinkage and cracking tendency. Doi: 10.28991/CEJ-2023-09-08-014 Full Text: PDF
Evaluation of Factors Affecting the Performance of Fiber-Reinforced Subgrade Soil Characteristics Under Cyclic Loading
Authors: Aneke Frank I. , Hanandeh Shadi , Kalumba Denis
Published: August 2023

This study is focused on evaluating the factors affecting the performance of fiber-reinforced subgrade under cyclic loading. To achieve the objectives of this study, a series of dynamic triaxial (DT) tests was performed, and the following parameters, such as resilient modulus (MR), number of loading cycles (N), cyclic stress (CS), resilient strain (RS), and stress-strain hysteresis response of both the reinforced and unreinforced subgrades were evaluated. Subsequently, a series of scanning electron microscope (SEM) tests was conducted to track the fiber-soil interfacial bonding after the completion of DT test. The results indicated that N and CS triggered an appreciable decrease in MR with significantly high RS deformation for the unreinforced subgrade. However, reversed responses were noted upon the inclusion of sisal fiber due to fiber-soil adhesion and a high ductility response was portrayed by the reinforced subgrades. A reversed response was significant upon 0.25% and 0.5% fiber inclusion, beyond which the CS resistance slightly decreased. The stress-strain hysteresis loop was observed to increase as the axial strain increased proportionally with an increase in fiber contents, thus causing a significant increase in energy absorption in specimens. The SEM micrograph showed tightly knitted fiber-soil adhesion after the DT test. This study indicated that the reinforced subgrade sustained the CS, N, and improved energy absorption capacity, and MRupon fiber inclusion. Doi: 10.28991/CEJ-2023-09-08-015 Full Text: PDF
The Hydrodynamic Model Application for Future Coastal Zone Development in Remote Area
Authors: Hermawan Surya , Bangguna David , Mihardja Edwin , Fernaldi Jason , Prajogo Jescey Edlin
Published: August 2023

Indonesia is an archipelago country with a wealth of marine resources. However, local communities have not optimally utilized the use of natural resources, including those in the coastal zone of Central Sulawesi, Indonesia. This research goal is to identify the potential coastal areas for future development in the coastal zones, such as grouper floating net cage (FNC) culture, seaweed cultivation, and tourism areas. Thus, it is intended to develop the methodology of the hydrodynamic models for decision support systems (DSS) within the analysis hierarchy process. There are a total of 25 parameters criteria to calculate the potential future coastal zone development, including physics, water quality, and zoning properties. This DSS can serve as the foundation for instruction, knowledge, and application in developing rural coastal regions. Because of its breadth, this research endeavor is still ongoing. After calibration and verification, the initial study of the potential area of approximately 98,000 ha indicates that the model meets the accuracy requirement within the range of the root mean square error of approximately 0.184. Then, the outcomes of the hydrodynamic model simulation in DSS can be used as essential information for maritime development at this location. The outcomes demonstrate that the best areas for grouper FNC cultivation, seaweed cultivation, along with marine tourism are 6,163 ha, 91,000 ha, and 9,024 ha, respectively. It is expected that this research will contribute to sustainable future coastal zone development in the vicinity of Central Sulawesi, Indonesia. Doi: 10.28991/CEJ-2023-09-08-02 Full Text: PDF
Strength Properties of Polymer Reactive Powder Concrete with Waste Materials
Authors: Hasan Shatha Sadiq , Fattah Mohammed Y.
Published: August 2023

Reactive powder concrete, or RPC, outperforms conventional or even high-performance concrete in terms of ultra-high strength and better durability. Several buildings were destroyed in Iraq, and recycling the garbage from these buildings can significantly help reduce waste and environmental pollution as well as serve as a source of aggregate for use in new construction. Reusing garbage and using sustainable building materials are now crucial environmental challenges, so this study aimed to replace the natural fine aggregate, NFA, used in preparations of polymer reactive powder concreter, "PRPC" with recycled aggregates, or RA, from crushed old concrete, COC, in order to make PRPC production more environmentally and sustainably friendly. In this study, RPC is modified by adding styrene butadiene rubber (SBR), a polymer, to the original mixture at a ratio of 13% by weight of cement. This study sought to determine the effect of using COC as recycled fine aggregate (RFA) on the compressive, splitting, and flexural strengths of PRPC. The main objective of this investigation is to study the effect of oil (water, new oil, and waste engine oil) on the compressive and tensile strengths of PRPC with COC and to compare the behavior with that of a control mix (PRPC with NFA). The mixtures were prepared using six different percentages of RFA, replacing 0, 20, 40, 60, 80, and 100% NfA. After 28 days, the six mixes were divided into three groups. The first was still being cured in water, W; the second in waste engine oil, WEO; and the third in kerosene oil, KO. The results showed that using COC as RFA in PRPC was viable, and according to this investigation, the mix with 40% COC replacement with NFA provides the highest values of compressive strength, tensile strength, and flexural strength before and after exposure to liquids (water, new oil, and waste engine oil). Doi: 10.28991/CEJ-2023-09-08-09 Full Text: PDF
Jumlah Populasi Imago Sitophilus oryzae L. dan Intensitas Kerusakan pada Beberapa Jenis Beras Asal Kecamatan Mauponggo, Kabupaten Nagekeo, Provinsi Nusa Tenggara Timur
Authors: Munde Veronika , Harini Titik Sri , Nenotek Petronella S. , Abidin Zainal , Mau Yosep Seran
Published: August 2023

Penelitian ini bertujuan untuk mengetahui jumlah populasi imago S. oryzae dan tingkat kerusakan yang ditimbulkannya pada beras beberapa varietas padi di Kecamatan Mauponggo, Kabupaten Nagekeo. Penelitian dilakukan di Laboratorium Hama Fakultas Pertanian Universitas Nusa Cendana. Penelitian disusun dalam rancangan acak lengkap yang terdiri dari lima varietas padi sebagai perlakuan, masing-masing empat ulangan. Masing-masing jenis beras ditimbang sebanyak 100 gram kemudian dimasukkan ke dalam toples plastik dan diinfestasi dengan lima pasang S. oryzae yang seragam umurnya. Peubah yang diamati meliputi kadar air gabah, jumlah imago S. oryzae dan persentase susut bobot gabah sebagai ukuran intensitas kerusakan. Data dilakukan analisis varian, dilanjutkan dengan uji Beda Yata Jujur pada taraf signifikansi 0,05%. Hasil penelitian menunjukkan perbedaan nyata antar varietas padi, baik pada populasi imago maupun tingkat susut bobot gabah. Varietas IR 64 menunjukkan jumlah imago S. oryzae terendah dan juga susut bobot gabah terendah sedangkan beras merah dan hitam lokal menunjukkan jumlah imago dan susut bobot gabah tertinggi pada delapan minggu setelah infestasi S. oryzae.