bluuebunny/crossref_metadata_2025 huggingface dataset:
A survey of public perception, knowledge and factors influencing COVID-19 vaccine acceptability in five communities in Ghana
Authors: Yorke Ernest , Amissah-Arthur Maame-Boatemaa , Boima Vincent , D. Dey Ida , Ganu Vincent , Fiagbe Dela , Tetteh John , Gyaban-Mensah Anna , Ekem-Furgurson George , E. Yawson Alfred , C. Mate-Kole Christopher
Published: March 2023

Objective: The present study assessed the public’s perception and Knowledge about COVID-19 and factors that could affect vaccine acceptability in Ghana.Design: We carried out a cross-sectional population-based study. A structured questionnaire was used to capture data on socio-demographic information, knowledge, and the public’s perception of COVID-19 infection, as well as COVID-19 vaccine acceptability from consented participants. Factors affecting vaccine acceptability in Ghana were explored. Robust ordinary least square linear regression analysis was adopted to assess factors associated with vaccine acceptability.Setting: Five communities (Labone, Lartebiorkoshie, Old Fadama, Chorkor, and Ashiyie) in Accra in the Greater Accra district were selected.Participants: WHO modified cluster-sampling method was applied to select households of 997 participants in the five communities.Results: Most respondents were males (57.6%), and the median age of participants was 30 years. The study participants demonstrated a good knowledge of COVID-19 and had high perceptions of the COVID-19 pandemic. The results revealed that the highest educational level, marital status, self-rated Knowledge of COVID-19, Knowledge of COVID-19 definition, Knowledge of COVID-19 symptoms, and perception of the COVID-19 pandemic were significantly associated with vaccine acceptability. Self-reported impact of COVID-19 lockdown/movement restrictions on agriculture and job as a source of livelihood was associated with vaccine acceptability.Conclusion: Higher subjective and objective knowledge of COVID-19 increases vaccine acceptability scores significantly thus, education on COVID-19 and the vaccination against SARS-CoV-2 infection must be intensified to improve vaccine acceptability in Ghana, especially among those with lower educational backgrounds.
ẢNH HƯỞNG CỦA ĐIỀU KIỆN NUÔI CẤY ĐẾN KHẢ NĂNG ỨC CHẾ Fusarium oxysporum VÀ Fusarium equiseti CỦA Bacillus subtilis NN12
Authors: PHẠM TẤN VIỆT  , ĐINH THỊ NGỌC NGÂN  , LÊ THỊ NGỌC LY  , NGUYỄN THỊ KIM HUỆ  , LÊ THỊ VY HIỀN  , NGUYỄN THỊ DIỆU HẠNH  , NGUYỄN NGỌC ẨN
Published: March 2023

Nấm mốc Fusarium là đối tượng gây bệnh trên nhiều loại thực vật khác nhau và ảnh hưởng nghiêm trọng đến năng suất cây trồng. Để kiểm soát nấm bệnh một cách an toàn và hiệu quả, các chủng vi khuẩn Bacillus đang được nghiên cứu và ứng dụng rộng rãi trên nhiều đối tượng thực vật khác nhau. Trong nghiên cứu này, các điều kiện nuôi cấy thích hợp để chủng Bacillus subtilis NN12, thuộc bộ sưu tập giống của Phòng thí nghiệm Công nghệ vi sinh, đại học Công nghiệp thành phố Hồ Chí Minh, sinh tổng hợp các hợp chất kháng nấm mốc Fusarium oxysporum và Fusarium equiseti đã được xác định. Môi trường nuôi cấy được bổ sung 1% glucose, 0,5% peptone, pH ban đầu 8,0 và nhiệt độ 37°C trong 18 giờ với tốc độ lắc 150 vòng/phút cho hoạt tính kháng mốc cao nhất. Hoạt tính ức chế F. oxysporum của dịch nuôi cấy bị hạn chế bởi nhiệt độ cao, trong khi hoạt tính ức chế F. equiseti tương đối bền nhiệt lên đến 90°C. Ngoài ra, các hợp chất kháng cả 2 loại nấm mốc kiểm định đều cho thấy khả năng bền trong phổ pH rộng (3,0-11,0) và đặc biệt là không bị tác động bởi proteinase K. Các kết quả thu được tạo cơ sở cho việc ứng dụng chủng vi khuẩn B. subtilis NN12 trong các chế phẩm sinh học để ngăn ngừa và điều trị các bệnh do Fusarium trên thực vật.
NGHIÊN CỨU ĐỘC TÍNH CẤP VÀ BÁN MÃN TÍNH CHIẾT XUẤT ETHANOL THÔ CỦA QUẢ Caryota urens L. (CỌ ĐUÔI CÁ) TRÊN CHUỘT SWISS ALBINO
Authors: TRẦN THỊ PHƯƠNG NHUNG
Published: March 2023

Caryota urens L. phân bố rộng rãi ở các vùng rừng núi Việt Nam. Quả C. urens chứa các hợp chất như ancaloit, flavonoit, phenol, cacbonhydrat … có tác dụng điều trị loét dạ dày, đau nửa đầu, viêm khớp … Nghiên cứu này nhằm đánh giá tính an toàn của chiết xuất ethanol thô quả C. urens (EtCU) trên chuột Swiss albino qua thử nghiệm độc cấp và bán mãn tính. Thử nghiệm độc cấp tính, chuột được uống các liều 1000, 3000, 5000 mg EtCU/kg một lần duy nhất, theo dõi liên tục trong 4h đầu tiên kể từ sau khi uống, không liên tục đến 24h, và theo dõi hàng ngày trong 14 ngày. Những hành vi bất thường, các triệu chứng nhiễm độc và tử vong được quan sát. Thử nghiệm độc bán mãn tính, chuột được uống EtCU với liều 100, 300, và 500 mg EtCU/kg trong 90 ngày. EtCU không gây ra sự khác biệt đáng kể về lượng thức ăn, nước uống tiêu thụ, khối lượng cơ thể, thành phần nước tiểu, huyết học, sinh hóa, khối lượng tương đối và mô học gan, thận so với đối chứng. Kết quả chỉ ra rằng EtCU không gây độc cấp tính (1000-5000 mg/kg) hoặc bán mãn tính (100-500 mg/kg) ở chuột.
THẨM ĐỊNH QUY TRÌNH PHÂN TÍCH CHÌ TRONG NƯỚC BẰNG PHƯƠNG PHÁP PHỔ HẤP THU NGUYÊN TỬ KẾT HỢP VỚI VẬT LIỆU POLYMER IN DẤU ION
Authors: LÊ ĐỨC HÒA  , NGUYỄN VĂN TRỌNG  , LÊ HOÀI ÂN  , TRẦN THỊ THANH THÚY
Published: March 2023

Quy trình phân tích chì trong mẫu nước bằng phương pháp phổ hấp thu nguyên tử sử dụng kỹ thuật nguyên tử hóa không ngọn lửa GF-AAS kết hợp với vật liệu polymer in dấu ion Pb2+ đã được thẩm định thành công. Vật liệu in dấu ion Pb2+ được tổng hợp bằng cách sử dụng 1-mercaptoctane; acid methacrylic; Pb(NO3)2; AIBN và EDGMA trong môi trường khí nitơ ở 60 oC trong 5 giờ.  Tính chất của vật liệu được phân tích bằng phương pháp kính hiển vi điện tử quét, phổ tán sắc năng lượng tia X, giản đồ nhiễu xạ tia X. Các ion Pb2+ trong mẫu được hấp phụ chọn lọc vào vật liệu, sau đó được giải hấp phụ bằng dung dịch HNO3 và được xác định bằng phương pháp GF-AAS. Với các thông số tối ưu của thiết bị GF-AAS, khoảng nồng độ chì tuyến tính trong khoảng 5÷120 µg/L với R2=0,9977. Giới hạn phát hiện và giới hạn định lượng của phương pháp lần lượt là 1,11 µg/L và 3,32 µg/L. Độ lặp lại ở 3 mức nồng độ 10 µg/L; 20 µg/L; 30 µg/L lần lượt là 9,75 %; 9,07%; 7,22%. Độ tái lặp được thực hiện ở những ngày khác nhau ở 3 mức nồng độ tương ứng ở trên lần lượt là 8,69%; 8,32%; 7,38%. Hiệu suất thu hồi của phương pháp trong khoảng 89,69 ÷ 92,97 %. Phương pháp nghiên cứu được áp dụng để phân tích hàm lượng vết của chì trong các mẫu nước ở thành phố Hồ Chí Minh, tỉnh Long An và được đánh giá theo các quy chuẩn của Bộ Y Tế và Bộ Tài Nguyên Môi Trường.
The number of {1243, 2134}-avoiding permutations
Authors: Callan David
Published: March 2023

We show that the counting sequence for permutations avoiding both of the
(classical) patterns 1243 and 2134 has the algebraic generating function
supplied by Vaclav Kotesovec for sequence A164651 in The On-Line Encyclopedia
of Integer Sequences.
E ffects of Consumption Characteristics of Overseas Direct Purchase Consumers on Repurchase Intention: Focused on the Moderating Effect of ESG Management
Authors:   The Korean-Japanese Economics & Management Association, Jin Wen-Jie , Lim Dal-Ho , Shin Young-Ae
Published: March 2023

Purpose: This study investigated the status of Chinese consumers using overseas direct purchases during the COVID-19 pandemic in the first half of 2022, and was based on previous studies related to the consumption characteristics, platform characteristics, and ESG management of Chinese consumers directly purchased overseas, and analyzes the moderating effect of Chinese consumers on ESG management of overseas direct purchase platform operators, that is, whether they recognize ESG management, and the impact of each factor on purchase intention and repurchase intention.
Research design, data, and methodology: In order to achieve the study, a survey was conducted on Chinese consumers who had overseas direct purchase experience in the first half of 2022. An empirical analysis was conducted with a statistical package (SPSS 26.0) using the collected questionnaire data.
Results: The results showed that Chinese consumers’ consumption characteristics were divided into diversity pursuit, consumption value, innovation all factors other than had a significant positive effect.
Implications: In terms of the moderating effect of ESG management, diversity pursuit, price competitiveness, and shopping convenience did not show a significant moderating effect on Chinese consumers’ purchase intention and repurchase intention, while consumption value, innovation, payment safety, and logistics services showed a significant positive (+) moderating effect on Chinese consumers’ purchase intention.
Antimikrobna osjetljivost i kretanje antimikrobne rezistencije bakterijskih uzročnika infekcija urinarnog trakta u pasa izdvojenih u Hrvatskoj u razdoblju 2012.-2022. godine
Authors: Kompes Gordan , Habrun Boris , Benić Miroslav , Cvetnić Luka , Špičić Silvio , Duvnjak Sanja , Reil Irena , Cvetnić Željko , Šeol Martinec Branka , Bagarić Antonela
Published: March 2023

Bakterijske su infekcije urinarnog trakta (IUT) u pasa učestale. Porast antimikrobne rezistencije i uporaba kritično-važnih antimikrobnih lijekova, osobito u liječenju IUT pasa, zabrinjavajuća je zbog pojave multiplo rezistentnih bakterijskih sojeva. Cilj je ovog rada bio prikazati prevalenciju i antimikrobnu resistenciju najčešćih bakterijskih uzročnika IUT pasa i trendove antimikrobne rezistencije izdvojenih bakterijskih sojeva u Republici Hrvatskoj tijekom 11 godina. Od ukupno 2721 pretraženih uzoraka urina, potitivno je bilo 1363 (50,1 %). Bakterijska vrsta Escherichia coli bila je najčešće izdvojeni mikroorganizam (47,3 %), nakon čega slijede: koagulaza pozitivni Staphylococcus sp. (20,7 %), Proteus sp. (14,7 %), Enterococcus sp. (13,6 %), beta hemolitični Streptococcus sp. (11,7 %), Pseudomonas aeruginosa (4,5 %) i meticilin rezistentni koagulaza pozitivni Staphylococcus sp. (3,4 %). Kod Gram-negativnih bakterija uočen je visok stupanj osjetljivosti na: gentamicin, amikacin (77,9 %-97,3 %), marbofloksacin i ciprofloksacin (69,7 %-98,4 %). Kod bakterijskog roda Proteus utvrđen je i visok stupanj osjetljivosti na beta-laktame (70,5 %-86,7 %), a kod Escherichia coli i na kloramfenikol (73,3 %) i trimetoprim/sulfametoksazol (72,7 %). Neznatan postotak koagulaza pozitivnih Staphylococcus sp. bila je osjetljiva na penicilin (10,6 %) i ampicilin (16,7 %), dok je mala osjetljivost zamijećena na streptomicin, neomicin i tetracikline (56,0 %-66,0 %). Najmanji postotak beta hemolitičnih Streptococcus sp. bio je osjetljiv na aminoglikozide, tetracikline (8,2 %-31,9 %) i fluorokinolone (31,5 %-61,6 %). Kod bakterijskih izolata Enterococcus sp. najveća osjetljivost prisutna je na amoksicilin/klavulansku kiselinu (78,0 %) i ampicilin (70,4 %). Amikacin i kloramfenikol, s postotkom osjetljivosti od 89,3 %, odnosno 80,9 %, bili su jedini antimikrobni lijekovi učinkoviti na meticilin rezistentne koagulaza pozitivne Staphylococcus sp. Tijekom 11 godina istraživanja zamijećen je trend porasta antimikrobne rezistencije bakterija Escherichia coli i Proteus sp., izdvojenih iz IUT pasa, na fluorokinolone, ampicilin i amoksicilin/klavulansku kiselinu, dok je kod bakterijske vrste Escherichia coli uočen porast antimikrobne rezistencije i na cefalosporine. Ovi rezultati će pomoći pri empirijskom odabiru antimikrobnih lijekova za terapiju IUT pasa te podizanju svijesti o razumnoj uporabi antimikrobnih lijekova.
Theoretical and methodological aspects of the formation of research competence of future teachers of physical education in the process of professional training
Authors: Nekrasov Hryhorii , Pysanets Iryna , Zhosan Tetiana , Samsutina Natalia , Voloshchuk Kateryna
Published: March 2023

The purpose of the article is to analyze the theoretical and methodological aspects of the formation of research competence of future teachers of physical education in the process of professional training. The article is based on the use of both general and special pedagogical research methods. An important role for our work was played by the use of sociological (sociological-statistical) method. The modeling method made it possible to propose a separate project-model of the curriculum. Research competence is important, with its help the future specialist will be able to conduct their own projects and develop the latest methods and ways of working and learning.
Social environment as a factor of personality formation
Authors: Varnavska Inna , Kharchuk Olena , Dubinka Mykola , Kulikova Svitlana , Kondratska Galyna
Published: March 2023

In the course of the research, analytical and bibliographic method was employed to study the scientific literature on the influence of the social environment on the process of personality formation. The questionnaire survey conducted by the authors of the study online served to clarify the most important issues related to the research topic in practice. According to the results of the study, the main important theoretical components of the process of influence of the social environment on the formation of personality have been identified. The point of view of practical psychologists and researchers-teachers of humanities universities on the key aspects of this issue has been investigated.
Study of Vibrating Screen Machine Damage in Stone Crusher and Its Effect on Production Loss in Cement Factory
Authors: Anuar Kaspul , Herisiswanto Herisiswanto , Fahrizqa Aqsal
Published: March 2023

Vibrating Screen Machine have a crucial role in producing split stone. Vibrating screen machine maintenance is taken after it is in trouble. This is a kind of unplanned maintenance, which risks causing a high quantity of machine breakdowns and will affect to the production capacity. This study analyses data trouble of the vibrating screen machine for five months. The data analysed are the type of disturbance, the amount of production losses and financial losses. The results showed that the largest repair hours due to mechanical problem occurred in the fifth month with a repair time of 75.8 hours and a production loss of 5,269.85 Tons which is equivalent to Rp. 580,382,000,-. Then the largest total repair hours due to the production problem occurred in the second month with a repair time of 32.99 hours and a production loss of 968.49 Tons or equivalent to Rp. 179,385,000,-.

Salah satu jenis mesin yang beperan dalam memproduksi batu split adalah vibrating screen. Perawatan mesin vibrating screen biasanya dilakukan saat mesin mengalami kerusakan. Hal ini adalah bentuk pemeliharaan yang tidak terencana, yang beresiko menimbulkan tingginya kuantitas gangguan pada mesin dan akan mempengaruhi kapasitas produksi. Penelitian ini menganalisa data gangguan dari mesin vibrating screen selama lima bulan. Data yang dianalisis meliputi tipe gangguan, jumlah produksi yang hilang (production losses) dan rugi keuangan. Hasil penelitian menunjukkan total jam perbaikan dengan klasifikasi kerusakan mechanical terbesar terjadi pada bulan ke lima dengan waktu perbaikan selama 75,8 jam dan production loss sebesar 5.269,85 Ton yang setara dengan Rp. 580.382.000,-. Kemudian total jam perbaikan dengan klasifikasi kerusakan production terbesar terjadi pada bulan kedua dengan waktu perbaikan 32,99 jam dan kerugian hasil produksi sebesar 968,49 Ton atau setara dengan sebesar Rp. 179.385.000,-.
Observation of Flow Loss on Pneumatic Fly Ash Transport System in Cement Plant
Authors: Akhbar Muhammad , Fernanda Yolli , Refdinal Refdinal , K Arwizet
Published: March 2023

Pneumatic conveying is a material transport tool that utilizes compressed air in a pipe that comes from a blower or compressor. The EP dust raw mill material transport equipment is designed using the pneumatic conveying principle which aims to deliver the material optimally to the cement mill. Therefore, this study aims to analyze the fluid flow in the EP dust Raw Mill material transport system pipe which aims to determine the phenomenon of fluid flow in the pipe design and find the head loss of the material transport pipe. This analysis uses a numerical method that is solving problems by being formulated mathematically by calculating operations and assisted by solidworks software. The size of the pipe to be analyzed is 330 meters long with a diameter of 0.2 meters and has 8 elbows and a head loss of 425.53 meters is obtained, while the results of theoretical calculations obtained a major loss of 374.61 meters and a minor loss of 20.87 meters and the total head loss is 395.48 meters.

Pneumatic conveying merupakan alat transpor material yang memanfaatkan udara bertekanan dalam pipa yang berasal dari blower maupun compressor. Alat transpor material EP dust raw mill dirancang menggunakan prinsip pneumatic conveying yang bertujuan untuk menghantarkan material secara optimal menuju cement mill. Oleh karena itu penelitian ini bertujuan untuk menganalisis aliran fluida yang berada didalam pipa sistem transpor material EP dust Raw Mill yang bertujuan untuk mengetahui fenomena aliran fluida pada desain pipa dan mencari head loss dari pipa transpor material tersebut. Analisis ini menggunakan metode numerik yaitu menyelesaikan permasalahan dengan diformulasikan secara matematis dengan cara operasi hitungan dan dibantu oleh software solidworks. Ukuran Pipa yang akan dianalisis sepanjang 330 meter dengan diameter 0,2 meter dan memiliki elbow sebanyak 8 buah dan didapatkan headloss sebesar 425,53 meter sedangkan dari hasil perhitungan teoritis didapatkan major loss sepanjang 374,61 meter dan minor loss sebesar 20,87 meter dan total head lossnya sebesar 395,48 meter.
Car Air Conditioner System Simulator Design for Student Practicum
Authors: Hidayat Nuzul , Giatman M , Muskhir Mukhlidi , Effendi Hansi , Arif Ahmad
Published: March 2023

This research aims to develop a car air conditioning (AC) simulator. The vehicle's air conditioning system is transferred to a stand panel with an electric motor drive. The selection of an electric motor simplifies operation, maintenance, and practicality because the AC system does not require much time to warm up. The rotation of the electric motor is regulated by an inverter so that the performance of the AC system matches the actual performance. The R and D approach was selected for this investigation. The technique begins with examining an existing simulator, followed by planning, creating, expert validation, and completion of the simulator. The expert validation of the material's feasibility yielded a score of 3.73 with a highly feasible category, a score of 3.45 with a viable category for media, and a score of 3.20 with a feasible category for efficacy. It has been demonstrated that, on average, there is a 36.18 percent improvement in comprehension when this technique is utilized. 

Tujuan penelitian ini adalah membuat simulator air conditioner (AC) mobil dengan cara memindahkan sistem AC dari mobil ke panel stand dengan penggerak motor listrik. Pemilihan motor listrik adalah untuk mempermudah pengoperasian, perawatan serta kepraktisan karena tidak butuh waktu yang lama untuk pemanasan sistem AC. Sebuah inverter digunakan sebagai pengatur putaran motor listrik, sehingga kinerja sistem AC sesuai dengan kinerja sebenarnya. Metode R and D dipilih dalam penelitian ini. Metode diawali dengan mengamati simulator yang sudah ada, merencanakan, mengembangkan, melakukan validasi simulator oleh ahli, dan finalisasi simulator. Hasil validasi ahli untuk kelayakan materi memperoleh nilai nilai 3.73 dengan kategori sangat layak, untuk media memperoleh nilai 3.45 dengan kategori layak, serta untuk keefektifan dengan nilai 3.20 dengan kategori layak. Pada saat digunakan, terbukti ada kenaikan pemahaman dengan rerata 36.18%.
BPPV de Dinamik Pozisyon Test Algoritması
Authors: KEPEKÇİ Ahmet Hamdi
Published: March 2023

Vertigo kişinin veya çevresinin sanal bir hareket hissidir. Be-
nign paroksismal pozisyonel vertigo (BPPV) yerçekimi ile

ilgili olarak başın pozisyon değişiklikleri sonucu ortaya çıkar.
BPPV’ye kulak, burun ve boğaz (KBB) kliniklerinde sıkça
karşılaşılır. BPPV’nin, utriküler makuladaki yerinden çıkmış

serbest hareket eden otolit fragmanları tarafından oluşturuldu-
ğu düşünülmektedir. BPPV’nin nistagmusa sebep olan diğer

hastalıklardan en önemli farkı, başın karşı yöne çevrilmesine
bağlı olarak nistagmus yönünün değişmesidir. BPPV için en
yaygın tedaviler yeniden konumlandırma manevralarıdır.
Etkilenen her kanala özgü manevralar vardır. Posterior kanal
BPPV’sinde Epley veya Semont manevrası kullanılarak tedavi
edilebilir. Lateral kanal BPPV’si için Lempert'in (barbekü) veya
Gufoni'nin manevraları etkilidir. Anteriror kanal BPPV'si için

Epley'leri (etkilenen taraftan başlayarak) veya Yacovino ma-
nevrası yapılır. İlaç tedavisi ve ameliyat bu hastalarda nadiren

kullanılmaktadır.
Diversity Of Makrozoobenthos As Bioindicators Of The Quality Of The River Aek Kanan
Authors: Harahap Arman
Published: March 2023

The waters of Kanan  is the waters are very widespread in , this area is densely populated, so there are many community activities that take place such as Transportation, Fisheries, Bathing, sand Mining and other.The purpose of this study is to determine the role of macrozoobenthos as a bioindicator of water quality in the waters of Kanan  Tapanuli Selatan , as well as determine the quality of water in the flow of the waters Kanan  physical properties, chemical has. The research was conducted from November 2019 to February 2019, the samples taken from the three research stations. From the results obtained Macrozoobenthos in the identification in this study consisted of 3 Phyla of invertebrates namely : Annelids, which consists of 2 classes, Arthropods consisting of 1 class and Molusca, which consists of 1 class. Based on the data of macrozoobenthos obtained at each research station, then the obtained value of population density, relative density and frequency of presence of that at station I the value of its highest density is Tubifex sp. with the value of the density of the population of 18,519 individual/m2, the density is relatively 25,862% and the frequency of the presence of 55,555%. off at 3. at station 2 the highest density is Tubifex sp. with the value of the density of the population of 18,519 individuals/m2, relative density 25,862% and a frequency of 55,555%. also note that the total score obtained by the method storet, namely -30, this shows that if connected with the raw water quality of class I is then classified in the waters of class III, which means that light polluted. The high total score method storet on the entire research station due to the presence of a variety of activities at each of the stations, settlements, sand mining and other activities. Where these activities produce waste, which in the end increases the content of Phosfat, COD, TSS and BOD5, thus causing the waters of the Waters of Kanan  is light polluted.
Macro : Inflation And Economic Stability In Islam
Authors: Siregar Rahmat Azahar , Abdul Majid M. Shabri
Published: March 2023

Inflation is a frequent conversation, both in economic meetings and in income-raising talks. Inflation in a country cannot be eliminated, it can only be minimized by indicators held by the government. In this study, it will discuss inflation and economic stability in Islam. This research is a descriptive qualitative research with a Library approach, and is narrated according to the needs of the formulation to be addressed. The results of this study show that  the conventional perspective states that the causes of inflation are cost push, demand pull, and mixed (mixed). Meanwhile, the Islamic paradigm emphasizes that inflation is the result of natural error and human error.
Islamic Macroeconomics-A New Paradigm
Authors: Agus Agus , Abdul Majid M. Shabri
Published: March 2023

This research discusses a new paradigm in Islamic macroeconomics, where conventional macroeconomic instruments, namely interest, have not been able to carry out or reduce the number of national crises that often occur in Indonesia. This research is a descriptive qualitative research with a Literature review approach. The results of the research obtained, that Islamic macroeconomics have instruments that can flatten the economy, where the instrument in question is the instrument of the profit sharing system. In the profit-sharing system, there is no imbalance on the road, everything must be transparent and must work together, so that the results obtained are maximum. Likewise with losses, if losses are presented, it is not only borne by one party, but both parties must also bear. This is the so-called equality in the economy which is a new paradigm in the Macro-Islamic system.
Comparative Analysis Of The Financial Performance Of Islamic Banking With Conventional Banking Listing On The Indonesia Stock Exchange For The 2018-2020 Period
Authors: Artedjo Dennis , Ronalda Willie , Khairani Rafida
Published: March 2023

Banks present their financial statements and then re-analyze them with financial ratios as a benchmark for their performance to distinguish the performance of Islamic banking from conventional banks. The goal is to test the Comparative Analysis. Financial Performance of Islamic Banking with Conventional Banking Listing on the IDX for the 2018-2020 period. A quantitative approach with two different average tests (Independent Sample Test). With a population of 46 banks listed on the Indonesia Stock Exchange for the 2018-2020 period. The samples were 3 Islamic & conventional banks with 9 data. The results showed that the CAR of Conventional Banks did not have a significant difference and the CAR of Islamic Banks did not have a significant difference. The NPL of Conventional Banks and NPLs of Islamic Banks have significant differences. BOPO Conventional Banks and BOPO Islamic Banks do not have a significant difference. ROA of Conventional Banks and ROA of Islamic Banks does not have a significant difference. Conventional Bank LDR and Islamic Bank LDR have significant differences.
The Effect Of Communication And Work Environment On Employee Performance With Motivation As Intervening Variable At Royal Prima Medan Hospital
Authors: Mikael Mikael , Sofiyan Sofiyan , Faris Salman , Fitri Rostina Cut
Published: March 2023

This study aims to determine whether communication and work environment affect employee performance through job satisfaction as an intervening variable at Royal Prima Hospital Medan. The study was conducted on 105 non-medical employees of Royal Prima Hospital Medan using saturated sampling technique. The data collection technique used is primary data in the form of questionnaires and secondary data obtained through documentation studies. The data analysis technique uses quantitative data which is processed with SPSS version 25 program, namely t test, coefficient of determination (R2) and path analysis. The results obtained in this study indicate 1) there is a significant influence between communication on motivation, 2) there is a significant influence between work environment variables on motivation, 3) there is a significant but not significant effect between motivational variables on performance, 4) there is a significant but not significant effect between communication variables on performance, 5) there is a significant influence between work environment variables on performance, 6) motivation variables can affect communication variables on performance, 7) motivational variables can affect work environment variables on performance. The ability of communication variables, work environment and motivation in explaining employee performance at Royal Prima Hospital Medan is 72.9%, while the remaining 27.1% is explained by other variables not included in this research model.
Determination Of Macro Mineral Content In Fresh Noni Fruit (Morinda Citrifolia L.) By Atomic Absorption Spectrophotometry
Authors: Novranda Pertiwi Nia , De Lux Putra Effendy , Rahman Harun Fathur
Published: March 2023

This study aims to determine the levels of macro minerals such as potassium, calcium, sodium, and magnesium in fresh noni fruit. The sample of noni fruit was destructed, then quantitative analysis of potassium, calcium, sodium, and magnesium were performed using atomic absorption spectrophotometry (AAS) at a wavelength 766.5 nm for potassium; 422.7 nm for calcium; 589.0 nm for sodium; and 285.2 nm for magnesium. The advantages of this method are selective and sensitive. The average % recoveries were obtained in 109.7 % for potassium; 96.4 % for calcium; 99.7 % for sodium; and 92.4 % for magnesium. This method is very suitable for determining mineral content in fruit as shown in the recovery results and in accordance with the validation requirements.
The Influence Of Human Resources Competence, Organizational Culture Influence And Transformational Leadership Style On Employee Performance Through Employee Job Satisfaction As Intervening Variable At Pdam Tirtanadi Medan
Authors: Rizki Aulia Muhammad , Pakpahan Efendy , Krisna Marpaung Fenny
Published: March 2023

This study aims to find out whether human resource competence has an indirect effect on employee performance through job satisfaction, to find out whether organizational culture has an indirect effect on employee performance through job satisfaction and to find out whether transformational leadership style has an indirect effect on employee performance through job satisfaction. . Descriptive statistics are statistics that function to describe or provide an overview of the object under study through sample data or the population as it is, without analyzing and making conclusions that apply to the public. The influence of human resource competence on job satisfaction through employee performance is 0.008, with a T statistic value of 0.439 (> 1.993) and a significance value (p-values) of 0.661 (< 0.05). Thus, the first hypothesis (H8) in the study this is rejected. The influence of Organizational Culture on job satisfaction through employee performance is 0.459, with a T statistic of 02.447 (< 1.993 and a significance value (p-values) of 0.015 (> 0.05). Thus, the second hypothesis (H9) in this study is accepted. The effect of transformational leadership style on job satisfaction through employee performance is 0.098, with a T statistic of 2.242 (>1.993 and a significance value (p-values) of 0.025 (<0.05) thus, the third hypothesis (H10) in this study is accepted.
Effect Of Results And Inflation On Third Party Funds In Sharia Commercial Banks And Sharia Business Units Period 2011-2020
Authors: Hidayah Taufiq
Published: March 2023

This study aims to determine the effect of profit sharing and inflation on third party funds in Islamic commercial banks and sharia business units. The tests used in this research are multiple linear regression test, normality test, classical assumption test (multicollinearity test and autocorrelation test), statistical test (coefficient of determination (R2), statistical F test, and statistical t test). The samples of this research are profit sharing statistics and third party funds of Islamic Commercial Banks and Sharia Business Units from January 2011 to December 2020 period and inflation statistics in Indonesia from January 2011 to December 2020. simultaneous profit sharing and inflation of third party funds. And Profit Sharing and Inflation Variables give a joint influence of 17.8 % on the Third Party Funds Variable.
Effect Of Service Quality On Consumer Satisfaction Moderated By Government Policy During The Covid 19 Pandemic
Authors: Khair Hazmanan , Tirtayasa Satria , Eva Trisna Fadila
Published: March 2023

The purpose of this study was to determine and analyze the effect of Service Quality on consumer satisfaction moderated by government policies during the covid 19 pandemic. The method used in this study is to use the explanatory approach. The population in this study were students in the city of Medan. The number of samples used in this study amounted to 140 people. Data collection techniques used in this study using a questionnaire technique/questionnaire. Data analysis techniques in this study using descriptive statistical analysis and data analysis with partial least square (PLS). Data processing in this study using Smart PLS 3 Software program. The results of this study showed that Tangibels has a positive and insignificant influence on consumer satisfaction, Assurance has a positive and significant influence on consumer satisfaction, Responsiveness has a positive and significant influence on consumer satisfaction, Empathy has a positive and significant influence on consumer satisfaction, Reability has a positive and significant influence on consumer satisfaction, Tangibels has a positive and insignificant influence on, Assurance has positive and insignificant influence on consumer satisfaction moderated by government policy, Responsiveness has positive and insignificant influence on consumer satisfaction moderated by government policy, Empathy has positive and insignificant influence on consumer satisfaction moderated by government policy, Reability has positive and insignificant influence on consumer satisfaction moderated by government policy.
Grouping Goods with the Association Rule Method Using A priori Algorithms in Modern Retail Stores
Authors: Rahmadsyah Arif , Mayasari Nova
Published: March 2023

The proliferation of retail companies in Indonesia makes competition quite fierce in this business. The availability of detailed information on products purchased from each customer transaction in the database will become data garbage, which continues to grow every day. Company managers will certainly be interested in knowing whether certain groups of products are consistently purchased together. They can use this data for optimal grouping and placement of products, and managers can also use this information for cross-selling, for promotions, for catalog design and to identify customer segments based on purchasing patterns. In this study, data mining with Association rule techniques was used to explore patterns of attribute relationships and frequent itemsets in the Retail database. The a priori paradigm is used to find large itemsets in the determination of association rules. The integration of association rules with the a priori paradigm has managed to find a number of patterns of relationships between attributes in retail databases.
The Effect of Job Promotion on Work Motivation: Evidence from PT. Beiersdorf Indonesia
Authors: Raharja Irwan , Firdaus Zahra , Syahyuni Dedy
Published: March 2023

Promotional opportunities offered by companies to employees will create a desire for employees to motivate themselves. This study aims to determine the effect of job promotion on employee performance at PT. Beiersdorf Indonesia by using a saturated sample of 50 respondents, where all the population is used as a sample with a significance level of error of 5% and with an r table of 0.284. Data processing is assisted by SPSS version 25 and Microsoft Excel. This study uses quantitative methods where data collection is done by observation, questionnaires, and documentation study methods. The test results showed the correlation coefficient of job promotion to work motivation was 0.699, which means it is strong and in the same direction because it is positive. In addition, the coefficient of determination is 0.488 (48.8%) and the rest (51.2%) is influenced by other factors that are not included in the variables of this study. The regression equation (Y = 7.051 + 0.431X) shows that there is a positive influence between job promotions and employee motivation at PT. Beiersdorf Indonesia.
Analysis Of Debt To Total Asset, Return On Asset, Cash Ratio And Their Impact On Dividend Payout Ratio With Firm Size As Intervening Variable In Go Public Companies In The Primary Consumer Goods Sector That Recorded In Idx Period 2017-2019
Authors: Raja David Hamonangan Damanik Yan , Toni Nagian , Romi Elly , Purba Kuras
Published: March 2023

This study aims to analyze the effect of Debt to Total Assets, Return On Assets, Cash Ratio on Dividend Payout Ratio with Firm Size as an Intervening Variable in Go Public Companies in the Primary Consumer Goods sector recorded in IDX for the 2017-2019 period. The population in this study are consumption companies with food and beverage, cigarettes, pharmaceuticals, cosmetics and household goods and household appliances sub-sectors. The sampling technique used was purposive sampling, in order to obtain 22 companies with 3 years of observation to 66 observations. The data analysis tool uses SmartPLS 3.0. The results of the analysis show that DAR, ROA, and Cash Ratio have a positive but not significant effect on Dividend Policy, Firm Size has a positive and significant effect on DPR, Firm Size is not able to mediate the influence of DAR, ROA, and Cash Ratio on DPR policy. DAR, ROA, and Cash Ratio can explain the DPR by 16.5% while the remaining 83.5% is explained by other variables. Suggestions for investors to choose a company that has a high DAR, ROA, and Cash ratio and a large Firm Size.
Post-Covid-19 Disposible Income Resistance Against Community Welfare In Regency Aceh Singkil
Authors: Rosliana Rosliana , Khamilah Siregar Oktarini , Azwar Hasibuan Hasrul , Hidayat Rahmat , Samrin Samrin , Suhendi Suhendi , Novalina Ade
Published: March 2023

The purpose of the study was to examine how much resilience the community's disposable income was due to COVID-19, and the factors for increasing farmer productivity in Tanah Bara Village, Gunung Meriah District based on the SEM model. The main problems studied are the decline in the resilience of disposable income due to lack of capital in opening wider agricultural land, soil fertility which is increasingly polluted which causes unable to cultivate crops, narrow land cannot increase the area of ​​land owned, seed quality is not good. which causes crop failure or poor yields, the number of plant pests that cause death and does not produce and the lack of human resources in agricultural and plantation management The analytical model used in Confirmatory Factor Analysis (CFA) to see the causal effect of several independent variables, namely the quality of fertilizer , capital, soil fertility, seed quality, technology, pests, number of workers to increase farmer productivity in Tanah Bara Village, Gunung Meriah District. The results showed that there were 3 factors that influenced the income and welfare of the community, namely factor 1 which consisted of the quality of fertilizer, capital, soil fertility and labor. Factor 2 which consists of seed quality and technology and factor 3 which consists of pests.
Public Service Digital Transformation Model In Supporting The Development Of A New Suro Village, Suro Makmur District
Authors: Darliansyah Darliansyah , Abdiyanto Abdiyanto , Rusiadi Rusiadi , Novalina Ade , Nazliana Nasution Lia , Suhendi Suhendi
Published: March 2023

The purpose of this study is to predict the increase in development and public services in Suro Baru Village, Suro Makmur District based on the SEM model. The analytical model used in Structural Equation Modeling (SEM) . Questionnaire data analysis will be processed using the SEM method with the IBM-SPSS-AMOS program. The results of the study show that 1) technology directly has a positive influence and significant to development in Suro Baru Village, Suro Makmur District, Aceh Singkil Regency. 2) Directly, infrastructure facilities have a positive and positive influence significant to development in Suro Baru Village, Suro Makmur District, Aceh Singkil Regency. 3) The potential has no influence on public services in Suro Baru Village, Suro Makmur District, Aceh Singkil Regency. 4) Directly technology has a positive influence and significant to public services in Suro Baru Village, Suro Makmur District, Aceh Singkil Regency. 5) Directly, infrastructure facilities have a positive and positive influencesignificant to public services in Suro Baru Village, Suro Makmur District, Aceh Singkil Regency. 6) Directly the potential to have a positive and significant influence on public public services in Suro Baru Village, Suro Makmur District, Aceh Singkil Regency. 7) Indirectly technology has a positive influence and significant to public services through development in Suro Baru Village, Suro Makmur District, Aceh Singkil Regency. 8) Indirectly, infrastructure has a positive and positive influence significant to public services through development in Suro Baru Village, Suro Makmur District, Aceh Singkil Regency. 9) Indirectly the potential to have a positive and significant influence on public public services through development in Suro Baru Village, Suro Makmur District, Aceh Singkil Regency.
Analysis Of Variation Of Paddle Wheel Photovoltaic Wheel Form In Microalgae Cultivation On Electricity Consumption
Authors: Naibaho Winfrontstein , Welmar Olfan Basten Barat  , Hiras Naibaho Romson
Published: March 2023

The main problem that is often found in the failure of microalgae production is poor water quality during the maintenance period. One of the causes of deteriorating water quality is the lack of oxygen which endangers microalgae which can inhibit cell growth so that it can reduce its productivity. On this basis, efforts are needed to refresh the water or aeration to help increase the dissolved oxygen (DO) level in the microalgae growth container using a paddle wheel. The development of an aerator blade design that has optimum efficiency is needed to reduce high electricity consumption and see more effective cell growth. For these problems, in this study, variations of the paddle wheel will be analyzed. Variations in the shape of the wheel used, namely straight and curved with the available aerators, are expected to have an optimum speed, area coverage and increase the amount of dissolved oxygen (DO). The method used is the experimental method . Based on this research, it was found that an increase in the value of cell growth occurred in variations in the shape of a straight paddle wheel of 122 cells/ml .
Performance of Sediment Microbial Fuel Cells in Generating Electricity using Fish Wastewater and Shrimp Wastewater as a Nutrient and Their Effect on Waste Quality
Authors: Alif Alfiah , Jalil Baari Muhamad , Febryanti Amalyah
Published: March 2023

Sediment Microbial Fuel Cell (MFC) is a technology that can convert chemical energy into electrical energy through the process of nutrient degradation by microbes. Sediment taken from the bottom of shrimp ponds was added as a source of microbes, while fish and shrimp wastewater were used as a source of nutrients for microbes. This study aims to measure the performance of the SMFC system on fish effluent and shrimp effluent to produce bio-electricity while reducing the waste load. The research method was experimental laboratories. The treatment given was the different types of electrodes, namely zinc-copper and aluminum-copper. In addition, 0.2 M KMnO4 electrolyte solution was used. This study consisted of four stages: the manufacture of nutrients from fish and shrimp wastewater, the manufacture of a dual chamber MFC bioreactor, the measurement of electrical values, and the analysis of waste quality. Experiments were carried out for 30 days by measuring electricity every 24 hours. The average value of electricity generated in the nutrients of fish wastewater with Zn/Cu electrodes was 0.705 V and Al/Cu was 0.472 V. Meanwhile, the average value of electricity in shrimp wastewater nutrients with Zn/Cu electrodes was 0.630 V and Al/Cu was 0.625 V. The number of colonies after adding sediment in the shrimp wastewater sample were 8.9 x 106 CFU/mL, the fish wastewater sample was 9.5 x 106 CFU/mL. It indicates the presence of microorganisms that play a role in the SMFC system
Uncovering The Relationships Between Strategic Capability, Strategic Flexibility, And Performance
Authors: Evanthi Ayundha , Azhar Ratih Mukti
Published: March 2023

Abstract.

 

Strategic flexibility and strategic capability are seen as strategic activities carried out by companies to compete and adapt to the business environment to achieve the expected performance. The objectives of this research are: (1) examine strategic flexibility, strategic capability, and performance by emphasizing their relationships, dimensions and roles of context (2) identify the relationship between strategic flexibility, strategic capability and performance that can be used for future theory development. This research uses bibliometric analysis to map how strategic flexibility, strategic capability and performance intended from several previous journals using VOSviewer. This research concludes that implementing strategic flexibility and strategic capability will result in effective relationships and good firm performance although strategic flexibility is not directly related to the strategic capability. Performance mediates the influence between strategic flexibility and strategic capability. The strategic flexibility is influenced by product innovation, absorptive capacity, and dynamic capability, in the other hand, strategic capability is influenced by network capability. The implication of this research are following researches can add literatures and new theories on the strategic flexibility and strategic capability so that research and discussion on this object can continue to grow.

 

Keywords: Strategic Flexibility, Strategic Capability, Performance
Characterization, Phytochemical Screening of Phyllanthus emblica L. Fruit Nanoherbal and Determination of the Estrus Cycle of Female Rats
Authors: Nurul Suci  , Masfria  , Aminah Dalimunthe  , Hafid Syahputra
Published: March 2023

One of a plant that is thought to have quite high antioxidant activity is kemloko (Phyllanthus emblica L.). This plant is a material that is often used by the community as a traditional medicine. This plant in India has been used to treat cancer, diabetes, liver (liver), heart problems and anemia. This biological activity is thought to be caused by the presence of bioactive compounds from secondary metabolites contained therein, especially compounds from the phenolic and flavonoid groups. The short length of the estrus cycle of rats makes them ideal for investigation of changes occurring during the reproductive cycle. The estrus cycle lasts four days and is characterized as: proestrus, estrus, metestrus and diestrus, which may be determined according to the cell types observed in the vaginal smear. Since the collection of vaginal secretion and the use of stained material generally takes some time, the aim of the present work was to provide researchers with some helpful considerations about the determination of the rat estrus cycle phases in a fast and practical way. This study began with macroscopic examination, examination of water content, examination of water-soluble extract levels, examination of ethanol-soluble extracts, examination of total ash content, and also an examination of acid-insoluble ash levels, phytochemical screening of Phyllanthus emblica L. fruit nanoherbal and determination of the estrus cycle of female rats. The results of phytochemical screening showed that the compound of Phyllanthus emblica L. Fruit nanoherbal contained a class of secondary metabolites of alkaloids, flavonoids, tannins, saponins, steroids/triterpenoids, and glycosides. And the estrus cycle of female rats can be determined by observing changes in vaginal epithelial cells.
Phytochemical Screening of Cinnamon Bark (Cinnamomum burmanii) (C. Ness & T. Ness) C. Ness ex Blume Ethanol Extract and Antioxidant Activity Test with DPPH (2,2-diphenyl-1-picrylhydrazyl) Method.
Authors: Sirait Tri Susanti , Arianto Anayanti , Dalimunthe Aminah
Published: March 2023

Cinnamon (Cinnamomum burmanii) is one of the spices that can be used as cosmetic preparations in the pharmaceutical industry because it contains potent antioxidants. Examples of cosmetic products containing cinnamon are body scrubs, body showers, and moisturizers. This study aimed to determine the antioxidant activity of cinnamon extract using the DPPH method. Cinnamon was extracted using the maceration technique with 96% ethanol solvent, and phytochemical screening was carried out. The results of phytochemical screening from cinnamon bark extract were alkaloids, saponins, tannins, triterpenoids, and flavonoids. Antioxidant activity obtained an IC50 value of 25.35 ppm. Based on these results, the cinnamon extract has a very strong antioxidant activity value.