bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sifat Mekanik Produk Metalurgi Serbuk dari Proses Ball Milling dengan Bahan Baku Al7075 Terhadap Variasi Temperatur Sinter dan Tekanan Kompaksi
Authors: Dewanto Hizkia Alpha , Abdi Muhammad Zaini , Maulana Achmad , Zulfikar Ainun , Tajalla Gusti Umindya Nur 
Published: March 2022

Powder metallurgy samples, made from Al7075 powder from ball milling, were produced and investigated. Samples were subjected to two different variables, those were compaction pressure and sintering temperatur. Compaction pressure variables were 250, 300, and 350 MPa with constant sintering temperatur of 505oC. Sintering temperatur variations were 425, 465, and 505oC with constant compaction pressure of 350 MPa. The results of density measurement and hardness test were directly proportional to both of research variables, whereas the porosity was inversely proportional. The properties of sample with variables of 350 MPa compaction pressure and 505oC sintering temperatur were the closest one to conventional Al7075, with density of 2.173 g/cm3, 22.2% porosity, and 12.56 VHN hardness. The properties of conventional Al7075 sample were 2.8 g/cm3 density, 0.26% porosity, and 12.68 VHN hardness. The abrupt increase of hardness between 465oC and 505oC sintering temperatur was similar in pattern of its porosity decrease. This means optimum porosity decrease was started between 465oC and 505oC which affecting hardness increase. Highest hardness of powder metallurgy Al7075, which was 99% of conventional Al7075 and porosity of 22.2%, suggested wide application potential of Al7075 produced by powder metallurgy.
Time-resolved photo-assisted Kelvin probe force microscopy on Cu(In,Ga)Se2 solar cells
Authors: Kuroiwa Tomoe , Takahashi Takuji 
Published: March 2022

Abstract
Photo-assisted Kelvin probe force microscopy (P-KFM) is very useful for examining photovoltaic characteristics especially on solar cells, although a time resolution in the conventional P-KFM was not sufficient for investigating carrier dynamics in time domain. In this study, we have introduced both an intermittent bias application method and a pump-probe method into P-KFM to realize time-resolved measurements at μsec order. Then the photo-carrier dynamics in Cu(In,Ga)Se2 solar cells with different Ga compositions have been examined by our time-resolved P-KFM through direct observation of rising and decay waveforms of the photovoltage induced by the pulsed light illumination and through two-dimensional observation of photovoltage distributions at various time intervals between the optical pump and electrical probe pulses.
Intrinsic luminescence-downshifting effects of Zn-based Mn-doped nanoparticle layers on Si solar cells
Authors: Idutsu Yuki , Awai Keigo , Liang Jianbo , Nishimura Hisaaki , Kim DaeGwi , Shim Yong-Gu , Shigekawa Naoteru 
Published: March 2022

Abstract
Luminescence downshifting (LDS) effects of Zn-based Mn-doped nanoparticles (NPs) on characteristics of Si solar cells are investigated. ZnSe:Mn/ZnS core-doped core/shell NPs and ZnSe/ZnS:Mn/ZnS shell-doped core/shell/shell NPs are deposited on glass plates using layer-by-layer method. It is found that shell-doped NPs are superior as LDS materials by measuring their optical properties. We deposit LDS layers made of shell-doped NPs on Si cells and measure their internal quantum efficiencies (IQEs) to examine LDS effects separately from the effects of reflection on LDS layers. We find that IQEs for 300–400 nm are more enhanced for cells with thicker LDS layers. IQE at 350 nm is calculated for Si cells with LDS layers coated using an analytical model for the transmittance of downshifted photons into Si cells. IQEs for the respective cells are in qualitative agreement with the measurements.
Tadabbur Bacaan Al-Qur’an Dalam Mengatasi Learning Loss (Studi Living Qur’an di SMP Integral Kumai)
Authors: Hany Ummu , Musyarapah@iain-palangkaraya.ac.id Musyarapah 
Published: March 2022

<p>Artikel ini ditulis bertujuan dalam rangka menambah pengetahuan bahwa Tadabbur Bacaan Al Qur’an mampu mengatasi learning loss. Dengan tadabbur Bacaan Al- Qur’an dapat mengaktifkan Seluruh kemampuan diri terutama dalam mengatasi learnig loss yang banyak terjadi saat ini. Karena diketahui ketika mentadabburi bacaan Al Qur’an. Banyak keajaiban-keajaiban akan di rasakan. Bacaan Al Qur’an digunakan sebagai teknik terapi spiritual yang dianggap sebagai terapi yang pertama dan paling utama. Karena didalamnya terdapat resep-resep mujarab yang juga dapat menyembuhkan penyakit dalam Jiwa manusia. Jenis Penelitian ini merupakan penelitian deskriptif kualitatif, yaitu data yang dikumpulkan melalui kata-kata, gambar, tidak melalui angka-angka. Penulis berperan menjadi <em>Participant aktif</em>, dengan melakukan pengamatan, mewancarai informan dan mendokumentasikan. Lalu menganalisis dan mereduksi data yang telah di dapatkan di lapangan. Hasil dari penelitian ini adalah teratasinya learning loss setelah mentadabburi bacaan-bacaan Al Qur’an. Peserta didik lebih aktif, berfikiran terbuka, senang diskusi, lebih semangat dan pengetahuan bertambah baik. Menghasilkan energy positif.</p><p> </p>
Pengabdian Masyarakat dalam Rangka Meningkatkan Mutu Pemindangan di Sentra Pemindangan Ikan Desa Kusamba, Bali
Authors: Pandit I Gede Suranaya , Permatananda Pande Ayu Naya Kasih 
Published: March 2022

Pendahuluan: Suatu metode pengolahan dan pengawetan tradisional dengan perebusan/pemasakan ikan dalam air garam untuk durasi waktu tertentu dalam suatu wadah hingga terjadi proses pengurangan kadar air pada ikan dalam level tertentu dimaksudkan sebagai Pemindangan. Tujuan: Universitas Warmadewa melalui program kemitraan masyarakat (PKM) bermaksud mengadakan kegiatan pelatihan dengan tujuan untuk meningkatkan mutu proses pemindangan di Desa Kusamba serta meningkatkan pengetahuan dan keterampilan pemindang lokal, dengan harapan produk pindang Desa Kusamba bisa menjangkau pasar yang lebih luas. Metode: Saat rangka meningkatkan mutu proses pemindangan di Desa Kusamba, metode pengabdian masyarakat yang dilakukan berupa penyuluhan, demonstrasi, serta pelatihan. Meliputi manajemen bahan baku, proses pengolahan pindang, dan Kesehatan pemindang. Evaluasi dilakukan dengan melihat kehadiran peserta pada setiap kegiatan, antusiasme peserta dalam mengikuti kegiatan, serta peningkatan pengetahuan dievaluasi dengan melihat peningkatan skor setelah kegiatan dibandingkan skor sebelum kegiatan. Kegiatan ini berlangsung setiap hari sabtu pada bulan Agustus 2020 dan diikuti oleh 5 pemindang yang bekerja pada blok berbeda di Sentra Pemindangan Kusamba. Hasil: Hasil skor tersebut kemudian dilakukan uji statistik paired t-test dan didapatkan rata-rata skor sebelum kegiatan 6,40 dan rata-rata skor setelah kegiatan 14,40; dengan rerata peningkatan sebesar 8 poin yang memiliki taraf signifikan (nilai P<0,05). Pemantauan paska kegiatan sangat diperlukan agar kegiatan yang dilakukan dapat diterapkan secara kontinu. Kesimpulan: Kegiatan pengabdian masyarakat di TPI Kusamba ini berlangsung baik dan lancar dengan keikutsertaan penuh peserta pada seluruh rangkaian kegiatan. Dukungan pemerintah dalam menyediakan sarana prasarana untuk meningkatkan mutu pemindangan di Desa Kusamba sangat diperlukan agar produk pindang yang dihasilkan di Desa Kusamba dapat memenuhi standar nasional Indonesia.
PENGARUH RELATED PARTY TRANSACTION, INVENTORY INTENSITY DAN KEPEMILIKAN MAYORITAS TERHADAP AGRESIVITAS PAJAK MELALUI MANAJEMEN LABA
Authors: Neneng Neneng Sri Suprihatin , Nikke Yusnita Mahardini  
Published: March 2022

Tujuan Penelitian ini untuk membuktikan pengaruh langsung dan pengaruh tidak langsung dari Related Party Transaction, Inventory Intensity, dan Kepemilikan Mayoritas terhadap Agresivitas Pajak melalui Manajemen Laba pada perusahaan manufaktur subsektor makanan dan minuman yang terdaftar di Bursa Efek Indonesia Periode 2013-2018. Jenis penelitian ini adalah penelitian kuantitatif dan jenis data yang digunakan adalah data sekunder pada laporan keuangan atau laporan tahunan yang dipublikasikan oleh perusahaan di Bursa Efek Indonesia. Metode pengumpulan data yang digunakan adalah metode purposive sampling dan kriteria perusahaan terpilih menjadi 8 sampel yang berarti ada 48 data yang dapat dianalisis. Data dianalisis dengan SPSS versi 25, analisis data yang digunakan regresi berganda untuk melihat pengaruh langsung dan uji sobel untuk melihat ada tidaknya hubungan tidak langsung melalui manajemen laba. Dari hasil penelitian ini hanya tiga hipotesis yang diterima sementara tujuh lainnya ditolak. Related Party Transaction, Inventory Intensity, dan Kepemilikan Mayoritas tidak berpengaruh terhadap Manajemen Laba; Related Party Transaction, Inventory Intensity dan Kepemilikan Mayoritas berpengaruh terhadap Agresivitas Pajak; Manajemen Laba tidak berpengaruh terhadap Agresivitas Pajak. Dan tidak ada pengaruh Related Party Transaction, Inventory Intensity dan Kepemilikan Mayoritas terhadap Agresivitas Pajak melalui Manajemen Laba dan Manajemen Laba ditolak sebagai variabel intervening.
Kata Kunci: Related Party Transaction, Inventory Intensity, Kepemilikan Mayoritas, Agresivitas Pajak, dan Manajemen Laba
Modeling the interaction of the fishing system with the Japanese sardine (Iwashi) and mackerel
Authors: Бойцов А.Н. , Осипов Е.В. , Лисиенко С.В. , Вальков В.Е. , Баринов В.В. 
Published: March 2022

В работе рассматриваются вопросы, связанные с повышением эффективности промысла дальневосточной сардины (иваси) и скумбрии путём учёта акустических полей рыболовных судов влияющих на поведение рассматриваемых гидробионтов. Приведены модель косяка рыбы и модель его взаимодействия с судном. Проведено численное моделирование косяков рыб при взаимодействии с акустическими полями двух типов рыболовных судов крупнотоннажного РТМС и среднетоннажного СТР-503 оснащёнными тралами. Результаты моделирования показали корреляцию с практикой промысла и позволили определить области концентрации косяков после прохождения их рыболовными судами. Показано, что небольшие тралы с оптимальными горизонтальными раскрытиями 70 м для облова косяков сардины иваси и скумбрии на крупнотоннажных судах позволяют увеличить уловистость, по сравнению с используемыми сегодня большими тралами имеющие горизонтальное раскрытие 130 м и более. Это достигается возможностью вывода тралов с оптимальным раскрытием за область концентрации гидробионтов после прохождения судна и воздействия его акустических полей на косяк. Соответственно небольшие тралы позволяют снизить затраты на топливо.
The paper deals with issues related to increasing the efficiency of the japanese sardine and mackerel fishing by taking into account the acoustic fields of fishing vessels that affect the behavior of the fish under consideration. A model of a school of fish and a model of its interaction with the vessel are given. Numerical modeling of fish shoals in interaction with acoustic fields of two types of fishing vessels of large-capacity RTMS and medium-capacity STR-503 equipped with trawls has been carried out. The simulation results showed a correlation with fishing practices and made it possible to determine the areas of concentration of shoals after they were passed by fishing vessels. It is shown that small trawls with optimal horizontal openings of 70 m for fishing shoals of sardine and mackerel on large-tonnage vessels can increase catchability compared to large trawls used today with a horizontal opening of 130 m or more. This is achieved by the possibility of moving trawls with optimal opening beyond the area of concentration of fish after the passage of the vessel and the impact of its acoustic fields on the school. Accordingly, small trawls can reduce fuel costs.
Sosialisasi Keselamatan di Perlintasan Sebidang Tidak Berpalang Pintu (Studi Kasus: Desa Ngetrep, Kabupaten Madiun)
Authors: Handoko Handoko , Imron Nanda Ahda , Malaiholo David 
Published: March 2022

Perlintasan sebidang merupakan perpotongan antara jalur kereta api dan jalan yang dibuat sebidang. Intensitas mobilitas kendararaan dipintu perlintasan sebidang di sepanjang jalan rel pada pintu perlintasan yang melintas atau berpotongan langsung dengan jalan kereta api berpotensi menjadikan perlintasan sebidang sebagai titik rawan kecelakaan. Perlintasan sebidang tidak dijaga yang lokasinya berada di Desa Ngetrep Kecamatan Jiwan, Kabupaten Madiun yang merupakan jalan keluar masuk menuju kearah kota madiun. Jadwal perjalanan kereta api yang cukup ramai khususnya di sore hari namun namun pada perlintasan sebidang ini tidak dilengkapi dengan portal palang pintu sehingga dapat berpotensi mengakibatkan kecelakaan lalu lintas. Untuk itu perlu dilakukan sosialisasi keselamatan pada perlintasan sebidang. Sosialisasi keselamatan di perlintasan sebidang tidak berpalang pintu ini merupakan kegiatan edukasi kepada masyarakat untuk memberikan informasi yang dapat meningkatkan kesadaran pengguna jalan saat melintas di pintu perlintasan sebidang dan bahaya yang akan dihadapi masyarakat apabila melanggar peraturan tersebut
Taking Rocks for Granite: An Integrated Geological, Mineralogical, and Textural Study of Curling Stones Used in International Competition
Authors: Leung Derek D.V. , McDonald Andrew M. 
Published: March 2022

ABSTRACTThe duopoly of curling stone sources suitable for international competition (Ailsa Craig, Firth of Clyde, Scotland and Trefor, Llŷn Peninsula, North Wales) has led to a long-held paradigm that the rocks from these localities are geologically unique. To evaluate this paradigm, we provide the first comprehensive, detailed analyses of the geological, mineralogical, and textural properties of curling stones, with a focus on three main areas: (1) the collective features of all curling stone lithologies, (2) the differences among the lithologies used for running bands versus striking bands, and (3) the presence of quartz, whose brittleness was previously considered to be undesirable in curling stones. The four curling stone varieties from the two localities (Ailsa Craig Blue Hone, Ailsa Craig Common Green, Blue Trefor, and Red Trefor) were analyzed using petrography, scanning electron microscopy, digital image analysis, powder X-ray diffraction, and normative mineralogy, with the following results: The curling stone varieties that are suitable for international competition can be broadly characterized as fine- to medium-grained, sparsely porphyritic to glomeroporphyritic, weakly to moderately altered, massive to weakly foliated, Phanerozoic granitoids (sensu lato). All four varieties are composed of feldspar (65–80 mod.%, with albite being the dominant component) and quartz (15–25 mod.%), along with mafic and accessory minerals (5–20 mod.%). The Ailsa Craig suite is classified as alkali feldspar quartz syenite, whereas the Trefor suite ranges from quartz monzogabbro (Blue Trefor) to granodiorite-granite (Red Trefor). None are strictly classified as granite.Predominantly equigranular textures are preferred for running bands (Ailsa Craig Blue Hone), whereas seriate to glomeroporphyritic textures are preferred for striking bands (Ailsa Craig Common Green, Blue Trefor, and Red Trefor). These are consistent with observations of used curling stones: pitting adversely affects larger grains in the running band, whereas a wider grain-size distribution correlates with fewer crescent-shaped fractures in the striking band.The appreciable abundance of unstrained, interstitial quartz (15–25 mod.%) in all curling stone samples challenges the longstanding belief of its absence and undesirability in curling stones. The degree of strain in quartz is likely to be a key criterion for selecting prospective curling stone materials.In conclusion, none of the examined characteristics of curling stones are unique in comparison to granitoids worldwide.
Hipertension pulmonar de altura
Authors: Diaz Lazo Anibal Valentin , Ercilla Sanchez Jose Guillermo 
Published: March 2022

La hipertensión pulmonar de altura (HPA) es una enfermedad producto de la exposición crónica a la altitud. La prevalencia de la HPA es variable según la localización geográfica, ambiental y genética. La población que vive en altura está expuesta crónicamente a una hipoxia alveolar debido a que la presión parcial de oxigeno se encuentra disminuido, este hecho ocasiona vasoconstricción y posteriormente una remodelación vascular pulmonar, ocurrida por la neomuscularización proliferativa de las arterias pulmonares distales y capilares previamente no muscularizados y el engrosamiento de la capa adventicial por la acumulación de fibroblastos y matriz. La HPA generalmente es asintomático, recién en estadios avanzados produce sintomatología caracterizado por disnea de esfuerzo, y fatiga. El diagnóstico preciso es con cateterismo cardiaco derecho con valores de presión arterial media (PAPm) mayor a 30 mmHg y/o presión arterial pulmonar sistólica (PAPS) mayor a 50 mmHg. El tratamiento ideal es el descenso del poblador a lugares bajos. Su pronóstico es bueno en la mayoría de casos.
Analyzing and Evaluating Future Water Demand Using WaterGEMS and Population Forecasting Methods for Narangi Village, Maharashtra, India
Authors: Mohseni Usman , Patidar Nilesh , Pathan Azazkhan , Saran V. , Agnihotri P.G. , Da Silva Pizzo Henrique 
Published: March 2022

The analysis of the water distribution network [WDN] is essential for a sufficient water supply. In the present study, the water distribution network [WDN] of the Narangi village in Virar was analysed using WaterGEMS software. The obtained results from the analysis were used to evaluate the impact of the growing population on the water distribution system in the coming decades, i.e., from 2020 to 2050. For population forecasting, the arithmetical increase and geometrical increase methods were adopted which were later used as “Low Population Growth Scenario" [LGS] and "High Population Growth Scenario" [HGS] respectively. The results obtained show that the maximum flow is observed in pipe 1, and the maximum demand is seen at junction 67. In 2020, the flow rate in Pipe 1 was 1036 litres per minute, but by 2050, it had risen to 1655 litres per minute. Demand at junction 67 was 54 litres per minute in 2020, and it had escalated to 86 litres per minute by 2050. This shows an increasing trend in pipe flow and demand at junctions due to the growing population over the decades. The future water demand is estimated under two population growth scenarios i.e., LGS and HGS. The comparison shows that unmet water demand estimated using the HGS, i.e., 0.223 and 0.601 million m3, is more than the LGS, i.e., 0.035 and 0.174 million m3 for the years 2040 and 2050, respectively. This signifies that unmet water demand in HGS and LGS will result in water scarcity in the study area. As a result, new water sources and the construction of new storage tanks should be planned and implemented as measures to reduce future unmet water demand.
Improvement of Student Learning Motivation through Word-Wall-based Digital Game Media
Authors: Safitri Desy , Awalia Suci , Sekaringtyas Tunjungsari , Nuraini Sri , Lestari Ika , Suntari Yustia , Marini Arita , Iskandar Rossi , Sudrajat Ajat 
Published: March 2022

The development of technology has a lot of influence in the field of education, one of which is in terms of learning media. Digital-based learning media are now being developed to create more fun learning, one of which is digital games. It is also known that digital games themselves positively influence increasing student motivation in the learning process. For this reason, the purpose of this study is to prove the effectiveness of digital game-based media in increasing motivation to learn science. The population group consisted of 129 students from Cluster I, North Sukabumi Village schools. Research sampling was carried out by simple random sampling to calculate the number of samples. The Slovin formula was used, which resulted in 98 students as the sample. This study used experimental research methods with a single group pretest-posttest, as for the instrument in a questionnaire using a Likert scale. The type of data analysis used in this research is an inferential analysis using a t-test. The results of this study indicate that digital game media positively influences students' learning motivation. The literature review comprises 40 studies. This study also shows that students experience increased learning motivation by using this digital game media. Because with this digital game media, students become more motivated to follow and understand the learning material being taught.
Infections and colonisation of central venous catheters in patients admitted to intensive care units at two tertiary care hospitals
Authors: Medis S. , Dissanayake T. , Namali D. , Gunasekara S. , Kottahachchi J. 
Published: March 2022

Introduction: Central venous catheters (CVC) are frequently used in modern health care systems. However, CVCs are likely to get colonised with microorganisms, resulting in catheter-related blood stream infections (CRBSI). This study investigated microorganisms causing CRBSI and CVC colonisation, their antibiotic resistance, and factors associated with CRBSI in patients in the intensive care units (ICU) at the Colombo North Teaching Hospital (CNTH) and Apeksha hospital, Sri Lanka.
Methods: The study included 300 adult patients in ICUs with a CVC in-situ for >48 hours. Blood taken through the CVC, peripheral blood and CVC tips were cultured. Microorganisms were identified and tested for antibiotic susceptibility. Demographic factors were recorded.
Results: Seventeen patients (13.1%) developed CRBSI. The CRBSI rate was 13.3 per 1,000 catheter days in CNTH while it was 10 (5.9%) cases and 5.2 per 1,000 catheter days in Apeksha hospital. In CNTH, CVC colonisation was detected in 35 (26.9%). Coagulase negative staphylococci (CoNS) were the leading cause of both CRBSI (41%) and colonisation (58%). In Apeksha hospital, Klebsiella sp. (5/10) were the predominant pathogens that caused CRBSI. Eighty-nine CVCs (52.3%) were colonised by CoNS (58%). In CNTH, CRBSI was detected more in males (14/17) (p<0.05). The majority of microorganisms that caused CRBSI and CVC colonisation in both hospitals showed resistance to commonly used antibiotics.
Conclusion: The CRBSI rates and the incidences were higher in CNTH. CoNS was the most common cause of CRBSI in CNTH and Gram negative bacteria in Apeksha hospital. CVC colonisation with CoNS was common in both hospitals. Antibiotic resistance was high among bacteria causing CRBSI and colonisation.
Determinants of traditional eye practices amongst rural dwellers in the Asikuma Odoben Brakwa District, Ghana
Authors: Enimah Eugene B. , Nirghin Urvashni , Boadi-Kusi Samuel B. , Ntodie Micheal 
Published: March 2022

Background: In Ghana and other developing countries, people resort to other means of eye care apart from the orthodox treatment given by eye care practitioners.Aim: This study aimed to examine the determinants of traditional eye practices amongst a sample in the Central Region of Ghana.Setting: The study employed a mixed-method convergent parallel study design and adapted the Expanded Programme on Immunization Survey Technique to enrol 191 residents.Methods: A questionnaire and an interview were used to obtain data from the participants. Descriptive statistics were computed along with univariate and multivariable logistic regression analysis to determine associated factors for the use of traditional eye medication (TEM), ophthalmic self-medication and its combination.Results: The study included 191 participants with an age range of 18–79 years. The odds of TEM use were 2.3 times higher in male than female participants (adjusted odds ratio [AOR]: 2.307, 95% confidence interval [CI]: 1.219, 4.364, p = 0.01). Other socio-demographic characteristics (age, marital status, occupation and educational status) were not associated with traditional eye practices. The p-value in all these was p 0.05 during the univariant analysis, but age was independently significant during the multivariant statistic (p = 0.041).Conclusion: Gender and age were significantly associated with TEM use. Public education on TEM and ophthalmic self-medication and its consequences should be organised, targeting the natives in the rural communities, by the Ghana Health Service.