bluuebunny/crossref_metadata_2025 huggingface dataset:
Sistem Informasi Proses Pengambilan Sertifikat Pelaut pada BP2IP Tangerang
Authors: Triono Triono , Hakim Zainul , Nursyi Muhamad
Published: November 2022

Dalam proses pengambilan sertifikat pelaut, BP2IP mengalami masalah kurang akuratnya dalam pengambilan sertifikat pelaut dalam pengarsipan data. Tujuan dari penulisan penelitian ini adalah membuat suatu program berbasis komputer khususnya untuk pengambilan sertifikat pelaut, dengan menggunakan bahasa program Asp.net dan SQL Server 2014 dalam pengolahan data pengambilan sertifikat pelaut  pada BP2IP. Metode yang di gunakan dalam penelitian ini Adalah waterfall meliputi analisa dengan mengunakan Use case, activity Diagram, Squence Diagram, ClassDiagram dan pengkodean dengan mengunakan bahasa program Asp.net dan SQL Server 2014, serta melakukan pengujian terhadap aplikasi. Hasil analisis dan perancangan aplikasi sistem ini diharapkan mampu memberi kemudahan dalam proses pengambilan sertifikat pelaut dengan mudah, cepat dan akurat sehinga dapat mempermudah dalam pendataan sertifikat pelaut yang sudah di ambil
Sistem Informasi Start Up Digital Dosenku Berbasis E-Commerce Di PT Penukal Integritas Indonesia
Authors: Yuliana Khozin , Arnita Fitria
Published: November 2022

Pengembangan sistem informasi pemesanan pengajar dan transaksi pembayaran training pada PT Penukal Integritas Indonesia yang pusatnya terdapat di Tangerang merupakan penyedia layanan pendidikan semua pelajaran, yang telah berdiri sejak tahun 2002. PT Penukal Integritas Indonesia selalu sukses dalam mencetak lulusan sangat baik karena PT Penukal Integritas Indonesia memiliki metode belajar yang berfokus pada skill. Perkembangan dan penggunaan teknologi komputer saat ini bukan hal yang asing bagi PT Penukal Integritas Indonesia. Metode penelitian ini dilakukan dengan observasi dan menganalisis sistem pemesanan pengajar dan transaksi pembayaran. Pemesanan pengajar dan transaksi pembayaran pada PT. Penukal Integritas Indonesia belum tersistem, Pemesanan pengajar mempunyai banyak menu-menu yang tidak perlu membuat sulitnya untuk melakukan pemesanan dan transaksi pembayaran memerlukan waktu yang lama. Sehingga dengan masalah ini peneliti berinisiatif melakukan analisis pengembangan sistem pemesanan pengajar dan transaksi pembayaran. Pada analisis ini menggunakan tahapan-tahapan pengerjaan mulai dari analisis, observasi, studi pustaka dan pendekatan berorientasi objek yaitu UML (Unified Modeling Language). Hasil yang dicapai adalah sebuah sistem informasi Dosenku yang dapat memesan pengajar dengan satu menu khusus dan transaksi pembayaran menggunakan metode virtual account.
Sistem Informasi Pendataan Alat Tulis Kantor Berbasis Web pada PT Astari Niagara Internasional
Authors: Julianti Muhammad Ramaddan , Dzulhaq Muhammad Iqbal , Subroto Ahmad
Published: November 2022

PT Astari Niagara Internasional merupakan perusahaan yang bergerak di bidang manufaktur lembaran akrilik yang didalamnya terdapat bagian pendataan barang ATK. Pendataan barang ATK berfungsi untuk mengelola kegiatan transaksi pemasukan dan pengeluaran barang. Pengelolaan tersebut masih memanfaatkan Ms Excel dan masih menggunakan form manual untuk proses transaksinya. Sistem ini memakan waktu lama dalam proses pengelolaan data dan tingkat keakuratannya belum maksimal. Untuk memperoleh keakuratan data, pendataan barang ATK membutuhkan suatu sistem yang efisien, efektif dan valid dalam mengelola kegiatan transaksi pengadaan dan pengeluaran barang. Dengan demikian dalam penelitian ini peneliti melakukan perancangan sistem menggunakan metode System Development Life Cycle (SDLC) dengan bahasa pemrograman PHP dan menggunakan database MySQL. Sistem dikembangkan dengan desain yang interaktif kepada penggunanya serta memberikan kemudahan dalam proses pengelolaan data barang, barang masuk dan proses order barang. Kemudahan pengelolaan data dapat dirasakan dengan adanya fitur pencarian laporan berbasis web yang dapat dilakukan dimanapun dan kapanpun
Two Remarkably Luminous Galaxy Candidates at z ≈ 10–12 Revealed by JWST
Authors: Naidu Rohan P. , Oesch Pascal A. , Dokkum Pieter van , Nelson Erica J. , Suess Katherine A. , Brammer Gabriel , Whitaker Katherine E. , Illingworth Garth , Bouwens Rychard , Tacchella Sandro , Matthee Jorryt , Allen Natalie , Bezanson Rachel , Conroy Charlie , Labbe Ivo , Leja Joel , Leonova Ecaterina , Magee Dan , Price Sedona H. , Setton David J. , Strait Victoria , Stefanon Mauro , Toft Sune , Weaver John R. , Weibel Andrea
Published: November 2022

The first few 100 Myr at z > 10 mark the last major uncharted epoch in the history of the universe, where only a single galaxy (GN-z11 at z ≈ 11) is currently spectroscopically confirmed. Here we present a search for luminous z > 10 galaxies with JWST/NIRCam photometry spanning ≈1–5 μm and covering 49 arcmin2 from the public JWST Early Release Science programs (CEERS and GLASS). Our most secure candidates are two M
UV ≈ −21 systems: GLASS-z12 and GLASS-z10. These galaxies display abrupt ≳1.8 mag breaks in their spectral energy distributions (SEDs), consistent with complete absorption of flux bluewards of Lyα that is redshifted to

z
=

12.4

−
0.3

+
0.1

and

z
=

10.4

−
0.5

+
0.4

. Lower redshift interlopers such as quiescent galaxies with strong Balmer breaks would be comfortably detected at >5σ in multiple bands where instead we find no flux. From SED modeling we infer that these galaxies have already built up ∼109 solar masses in stars over the ≲300–400 Myr after the Big Bang. The brightness of these sources enable morphological constraints. Tantalizingly, GLASS-z10 shows a clearly extended exponential light profile, potentially consistent with a disk galaxy of r
50 ≈ 0.7 kpc. These sources, if confirmed, join GN-z11 in defying number density forecasts for luminous galaxies based on Schechter UV luminosity functions, which require a survey area >10× larger than we have studied here to find such luminous sources at such high redshifts. They extend evidence from lower redshifts for little or no evolution in the bright end of the UV luminosity function into the cosmic dawn epoch, with implications for just how early these galaxies began forming. This, in turn, suggests that future deep JWST observations may identify relatively bright galaxies to much earlier epochs than might have been anticipated.
Direct Determination of the Activation Energy for Diffusion of OH Radicals on Water Ice
Authors: Miyazaki A. , Tsuge M. , Hidaka H. , Nakai Y. , Watanabe N.
Published: November 2022

Using a combination of photostimulated desorption and resonance-enhanced multiphoton ionization methods, the behaviors of OH radicals on the surface of an interstellar ice analog were monitored at temperatures between 54 and 80 K. The OH number density on the surface of ultraviolet-irradiated compact amorphous solid water gradually decreased at temperatures above 60 K. Analyzing the temperature dependence of OH intensities with the Arrhenius equation, the decrease can be explained by the recombination of two OH radicals, which is rate-limited by thermal diffusion of OH. The activation energy for surface diffusion was experimentally determined for the first time to be 0.14 ± 0.01 eV, which is larger than or equivalent to those assumed in theoretical models. This value implies that the diffusive reaction of OH radicals starts to be activated at approximately 36 K on interstellar ice.
Laboratory and Astronomical Detection of the SiP Radical (X2Π
i
): More Circumstellar Phosphorus
Authors: Koelemay L. A. , Burton M. A. , Singh A. P. , Sheridan P. M. , Bernal J. J. , Ziurys L. M.
Published: November 2022

The millimeter-wave spectrum of the SiP radical (X2Πi) has been measured in the laboratory for the first time using direct-absorption methods. SiP was created by the reaction of phosphorus vapor and SiH4 in argon in an AC discharge. Fifteen rotational transitions (J + 1 ← J) were measured for SiP in the Ω = 3/2 ladder in the frequency range 151–533 GHz, and rotational, lambda doubling, and phosphorus hyperfine constants determined. Based on the laboratory measurements, SiP was detected in the circumstellar shell of IRC+10216, using the Submillimeter Telescope and the 12 m antenna of the Arizona Radio Observatory at 1 mm and 2 mm, respectively. Eight transitions of SiP were searched: four were completely obscured by stronger features, two were uncontaminated (J = 13.5 → 12.5 and 16.5 → 15.5), and two were partially blended with other lines (J = 8.5 → 7.5 and 17.5 → 16.5). The SiP line profiles were broader than expected for IRC+10216, consistent with the hyperfine splitting. From non-LTE radiative transfer modeling, SiP was found to have a shell distribution with a radius ∼300 R
*, and an abundance, relative to H2, of f ∼ 2 × 10−9. From additional modeling, abundances of 7 × 10−9 and 9 × 10−10 were determined for CP and PN, respectively, both located in shells at 550–650 R
*. SiP may be formed from grain destruction, which liberates both phosphorus and silicon into the gas phase, and then is channeled into other P-bearing molecules such as PN and CP.
Consumption and labour income over the life cycle in Mali: A National Transfer Accounts approach
Authors: Guidime Camille , Doumbo Sadou , Dramani Latif , Dabou Robert
Published: November 2022

The paper analyses the consumption and production behaviour of the Mali’s population by age using the National Transfer Account approach and household surveys and macroeconomic data. It reveals that between the ages of 28 and 66, Malians generate a surplus of 1,620 billion XOF in 2017. This surplus covers only 46% of the social demand of those under 28 and over 66. Women are in deficit over their life cycle, in other words, their level of consumption remains higher than their level of labour income, given their late entry into the labour market. While women consume as much as men over part of the life cycle, they produce 22% of labour income. The results also show that in Mali the level of material well-being measured by consumption declines with age.
Zinc metabolism in healthy men and in patients with chronic bacterial prostatitis
Authors: Bratchikov Oleg I. , Dubonos Pavel A. , Tyuzikov Igor A. , Zhilyaeva Yuliya A.
Published: November 2022

Introduction: Zinc is a vital trace element, which regulates metabolism of a prostate gland. It has been established that a low plasma zinc level in men increases the risk of chronic prostatitis and vice versa, chronic prostatitis is often accompanied by zinc deficiency in the prostate gland. The purpose of this study is to research the features and possible correlations of zinc metabolism disorders at systemic (in blood) and local (in prostatic fluid) levels in healthy men and patients with chronic bacterial prostatitis (CBP).

Materials and methods: Ninety patients with CBP (main group) and thirty healthy men (control group) were random­ized by age (mean age 38.5±2.9 years) and examined. In addition to standard examinations, the zinc levels in blood serum and prostatic fluid were determined, and the oxidative status of the prostate gland was assessed (the level of reac­tive oxygen species (ROS), conjugated dienes, malondialdehyde, superoxide dismutase (SOD) activity in the prostatic fluid) according to standard methods.

Results and discussion: In patients with CBP, the absolute deficiency of plasma and prostatic zinc was detected 2.89 and 2.5 times more often, respectively, than in healthy men (p < 0.05). At the same time, both the patients with CBP and healthy men had significant correlations between plasma zinc and zinc in prostatic fluid (r = 0.345; n = 37; p = 0.001 and r = 0.156; n = 30; p = 0.001; respectively). A significant positive correlation between the zinc level and the activity of SOD in prostatic fluid was revealed only in the patients with CBP (r = 0.389; n = 90; p = 0.001).

Conclusion: Zinc concentration in blood plasma does not objectively reflect zinc metabolism disorders in the prostate gland, and therefore the determination of zinc in prostatic fluid is the most reliable and sensitive method for assessing zink disorders in patients with CBP.
Global solution to the Cauchy problem of fractional drift diffusion system with power-law nonlinearity
Authors: Gu Caihong , Tang Yanbin
Published: November 2022

In this paper, we consider the global existence, regularizing decay rate and asymptotic behavior of mild solutions to Cauchy problem of fractional drift diffusion system with power-law nonlinearity. Using the properties of fractional heat semigroup and the classical estimates of fractional heat kernel, we first prove the global-in-time existence and uniqueness of the mild solutions in the frame of mixed time-space Besov space with multi-linear continuous mappings. Then, we show the asymptotic behavior and regularizing-decay rate estimates of the solution to equations with power-law nonlinearity by the method of multi-linear operator and the classical Hardy-Littlewood-Sobolev inequality.
Impact of Consumers’ Moral Self- Identity on Green Purchase Decisions of Fast Moving Consumable Goods (FMCG)
Authors: Samarasinghe G. D. , Ahsan F. J.
Published: November 2022

Much research has used general attitudes and behavioural models in terms of values, beliefs and norms as the predictors of green purchase intention. Green purchase intention refers to the willingness of a person to give preference to products having eco-friendly features in their purchase considerations. However, there is a dearth of studies that investigate this in relation to customers’ self-regulatory mindset. Hence, the present study aims to elucidate how customers’ moral self- identity as a measure of regulatory perception guides individual decision making on green product purchase in Sri Lanka with special reference to green based Fast Moving Consumable Goods (FMCG). From extant literature, a conceptual model was formulated. It hypothesized that consumers’ moral self-identity is a positive predictor of their green purchase intention and in turn green purchase intention as a positive predictor of actual green purchase behaviour. A structured questionnaire was administered to a representative sample of 300 modern-trade retail customers. The data analysis comprised of linear regression analysis to test the hypotheses. The reliability of the measures was also tested. Customers’ moral self- identity was found to be a significant positive predictor of green purchase intention for FMCG in Sri Lanka. Further, it was evident that green purchase intention is positively associated with actual green purchase behaviour. The findings have theoretical and practical implications for both academia and practitioners.
Change of Management Control from the Balanced Scorecard to Budgeting: Case-Study Evidence from a Commercial Bank
Authors: Kapiyangoda K. K. , Gooneratne T. N.
Published: November 2022

Althoughthe balanced scorecard (BSC) is claimed to be conceptually superior to budgeting,not all BSC implementations get sustained, and some organizations even move back to budgetary control systems.Using the qualitative case study approach,this study investigates the reasons for the change of management controlfrom BSC to budgeting in a Sri Lankan commercial bank.To capture thesereasons, a revised Accounting Change Model of Cobb, Helliar, and Inns (1995) was used. This study contributes to literature by further developing Cobb et al.’s (1995) Model, by sub-categorizing the momentum for change into three elements: people, processes and external triggers, based on the case study evidence.
Minimal Detectable Change for the ImPACT Test Administered Remotely
Authors: Quigley Kristen G. , Taylor Madison R. , Hopfe Dustin , Pavilionis Phil , Murray Nicholas G.
Published: November 2022

Context

Immediate Postconcussion Assessment and Cognitive Testing (ImPACT) is one of the most widely used computerized neurocognitive assessment batteries in athletics and serves as both a baseline and postinjury assessment. It has become increasingly popular to administer the ImPACT baseline test in an unsupervised remote environment; however, whether the lack of supervision affects the test-retest reliability is unknown.

Objective

To establish the minimal detectable change (MDC) of composite scores from the ImPACT test when administered to National Collegiate Athletic Association Division I student-athletes in an unsupervised remote environment before 2 consecutive athletic seasons.

Design

Cross-sectional study.

Setting

Participants were provided with a unique link and detailed written instructions on how to complete the ImPACT test at home.

Patients or Other Participants

Division I student-athletes.

Main Outcome Measure(s)

Remote baseline ImPACT results from the 2020–2021 and 2021–2022 athletic seasons were analyzed. The MDC was calculated at the 95%, 90%, and 80% CIs for each of the ImPACT composite scores as well as the average and SD.

Results

The MDC at the 95% CI was 18.6 for the verbal memory composite score, 24.44 for visual memory, 8.76 for visual motor, 0.14 for reaction time, and 6.13 for impulse control. One-way repeated-measures multivariate analysis of variance, repeated-measures analysis of variance, and Wilcoxon signed ranks tests suggested no difference in the composite scores and impulse control between time points.

Conclusions

The ImPACT composite scores and impulse control did not change between the 2 remote testing time points when administered approximately 1 year apart. Our study suggests that the MDC serves as a clinician’s guide for evaluating changes in ImPACT baseline scores and in making clinical judgments on sport-related concussion when the test is administered at home.
Knowledge and Practice of COVID-19 Preventive Measures and Its Associated Factors Among Attendees of a Primary Care Clinic in Kano, Nigeria; A Cross-Sectional Study
Authors: Umar Zainab Abdulazeez , Michael Godpower C. , Grema Bukar A. , Suleiman Abdullahi K. , Olawumi Abdulgafar L. , Damagum Fatima M. , Abdulkadir Zainab
Published: November 2022

Background:

In recent times, an increasing number of mysterious deaths related to Coronavirus disease 2019 (COVID-19) have engulfed one of the largest cities in Africa. Hence, there is a need to promote the prevention of morbidity and mortality from this currently poorly understood disease.

Objectives:

To assess the level of knowledge and practice of preventive measures against COVID-19 and to identify its predictors.

Materials and Methods:

A cross-sectional questionnaire-based study among 420 adults systematically selected from attendees of a Nigerian general outpatient clinic over a 4-week study period. Data collected included participants' sociodemographic characteristics and knowledge and practice of COVID-19 preventive measures. Data were analyzed using descriptive and inferential statistics. Binary logistic regression was used to identify predictors of knowledge and practice of the preventive measures. Variables with P < 0.05 were considered predictors.

Results:

A majority were females (57.5%), they had a mean age of 33.1 ± 11.7 years, with tertiary education (60.2%). Overall, more than two-third of 294 (71.4%) of the participants had good knowledge. However, only 59 (14.3%) of the participants had correct (good) practice. Only educational level (adjusted odds ratio [AOR] = 2.079, 95% confidence interval [CI] = 1.039–4.161) and overall knowledge (AOR = 0.342, 95% CI = 0.155–0.754) were predictors of knowledge and practice, respectively.

Conclusion:

COVID-19 preventive practice is still inadequate among this primary care population in Kano, Nigeria. Ensuring access to quality education and enlightenment campaigns will go a long way in improving the knowledge on COVID-19 preventive measures, which may improve practice.
An Assessment of the Impacts of Biosecurity Measures on Mortality of Fish from Fish Farms
Authors: Adah Deborah Arimie , Saidu Lawal , Oniye Sonnie Joshua , Adah Adakole Sylvanus
Published: November 2022

Fish mortality has a significant impact on fish production by lowering fish productivity, causing an economic loss to the farmers, and also has a cost in terms of reduced fish health, thereby limiting the growth of the enterprise. A cross-sectional study was carried out to determine the impact of biosecurity measures and risk factors on the mortality of fish from fish farms. A structured questionnaire that focused on socioeconomic information, management practice, health, disease, and biosecurity measures was administered to fish farmers. A total of eighty fish farmers were involved in this study. Most of the fish farmers were male (70.00%), had tertiary education qualifications (60.00%), and were between the ages of 41 and 50 (37.50%). They had been engaged in fish farming for about 1-3 years (48.75%) and they combined it with poultry production. Varying mortality rates were recorded on the farm and the recorded mortality was associated with management practices, disease, health, and biosecurity measures and they differed significantly at P≤0.05. Fish farmers' practices were generally not in accordance with biosecurity principles. Therefore, it is crucial to create and implement biosecurity measures to prevent, manage, and eliminate the mortality of fish in fish farms.
Effects of Graded Methionized Yeast on the Growth, Nutrient Utilization, and Hematobiochemistry of Hybrid C. gariepinus x H. longifilis (Hetroclarias)
Authors: Enyidi Uchechukwu D. , Oguibe Bright
Published: November 2022

Sacharomyces cerevisiae contains about 45% protein but lacks some essential amino acids like methionine. Methionine promotes the growth of yeast and inhibits autophagy. We methionized yeast for 48hrs at 28°C and thereafter used it in the formulation of novel diets for hybrid African catfish `heteroclarias`. The diets varied in the inclusion of methionine: Sacharomyces cerevisiae as follows; F1, 0:250; F2, 200:50; F3,150:100; F4, 100:150; F5, 50:200, and F6, 250:0. Hybrid catfish were stocked at 20 fish per aquaria, subjected to 12D:12L photoperiods and were fed ad libitum for 86 days. Hybrids that received feed F5 (200gyeast:50g Meth), had the highest SGR, 2.86±0.05 % day-1, lowest FCR F2, 1.04±0.08, highest weight gain 264.96±0.73g, highest PER 5.92±0.07 and highest DFI of 2.95±01g day-1. Conversely the hybrid fed diets F2 (200gMeth:50g yeast), had the lowest SGR of 0.97±0.01% day-1, highest FCR of 2.53±0.01, lowest weight of 35.03±7.52g, lowest PER 0.80±0.02 and lowest DFI of 0.47±0.02g day-1. All analyzed hematobiochemical indices were optimal for catfish fed F5 (200gyeast:50g Meth) and poorest for those fed F2(200gMeth:50g yeast). Results suggest that 50g kg-1 methionine inclusion and methionization of yeast is optimal and yields best growth, nutrient utilization and hematological parameters in diets of hybrid African catfish.
Numerical Investigation of the Impact of Onshore Fish Farming on the Western Coast of Algeria
Authors: Aissaoui Youssra Imane , Mokhbi-Soukane Dahbia , Mezouar Khoudir , Soukane Sofiane
Published: November 2022

A methodology for aquaculture site selection is presented using a combined hydrodynamic/nutritional model to predict fish farm wastes and dispersion, using the indirect fish waste estimation method, and the numerical model MIKE 21. This method can be used as a basis for assessment of the environmental impact of fish farms. The models were applied for a virtual inland fish farm to harvest 450 tons of sea bass in the west coast of Algeria. The results show that the fish farm effluents quantities and dispersion depends on the production cycle and size, the hydrodynamic parameters, as well as the food quantity and composition. The suspended waste, nitrogen and phosphorus are respectively the main contributors to the fish farm pollution. The current speed varies from 0.005 to 0.045 m/s, while the nitrogen and phosphorus concentrations reached 2.1 mg/L, and 0.03 mg/L respectively. This study allows the Algerian authorities to decide upon delivering fish farming permissions in the studied area, by identifying the suitability of the area for aquaculture, and predicting potential fish farm pollution. The use of numerical models in aquaculture could help reducing installation, water treatment costs and the environmental impact of fish farms by contributing to the sustainability of the activity.
Production and Physicochemical Characterization of Antifouling Biocomposites; The Effect of Chitosan and ZnO to Prevent Marine Biofouling
Authors: Arisandi Desy , Ibrahim Bustami , Santoso Joko
Published: November 2022

Adhesion of biofouling organism creates various problems. Efforts to explore the source of the antifouling material from marine organisms have been carried out, but it is non-cultivable mainly; its work efficiency depends on temperature, pH, concentration, and ineffective exposure time. Therefore, it is necessary to explore new sources of antifouling material by developing antifouling biocomposites from chitosan-ZnO. This study aims to determine the effect of differences in concentration of chitosan and ZnO on biocomposite characterization. This study consisted of 3 stages, 1) characterization of chitosan and ZnO; 2) production and characterization of chitosan-ZnO biocomposite; and 3) antifouling activity testing. The results showed that chitosan was completely soluble in 2% acetic acid with a viscosity of 76.4 to 79.6%, a water content of 10.92%, ash of 1.92%, nitrogen of 3.70%, and a deacetylation level of 85%. The ZnO used in this study had a particle size of 396.1-458.7 nm. Biocomposite characteristics indicated that the best treatment was chitosan 1% -ZnO 0.6 g with 0.31% swelling, 0.18% solubility film, 104.50° hydrophobic and 4.50 MPa adhesion. The results of the anti-fouling tests showed that the treatment of chitosan 1% -ZnO 0.6 g had less biofouling than other treatments.
Effects of Different Vegetable Oils on the Fatty Acid Metabolism Based on Whole Body Fatty Acid Balance Method and Gene Expression of Rainbow Trout (Oncorhynchus mykiss)
Authors: Köse Reis İrem , Yıldız Mustafa , Çakiris Aris
Published: November 2022

The objective of conducted research was to analyze the growth performance, fatty acid (FA) metabolism and gene expressions related to polyunsaturated fatty acid (PUFA) metabolism in Oncorhynchus mykiss fed diets containing fish oil (FO), sesame oil (SO), linseed oil (LO) and olive oil (OO). Based on the results of the whole body FA balance method of the study, it was concluded that rainbow trout used n-3 PUFAs as energy and this affected the oxidation of n-6 long-chain polyunsaturated FAs (LC-PUFAs). Gene expression level of the Δ-6 desaturase was the lowest for FO and the highest for SO fed fish (P<0.05). Fish fed with OO had the lowest and fish fed with FO had the highest expression levels of elongase gene (P<0.05). The elongase (ELOVL5) transcription rate was higher in fish fed with FO diet and lower in fish fed with OO diet (P<0.05). In conclusion, this research indicated that the final n-3 PUFA ratio in fish fed with vegetable oil diets can be increased by the addition of 18:3n-3 and the decreased level of total dietary 18:2n-6, the balancing of dietary FAs with a proper content of saturated FA (SFA) and monounsaturated FA (MUFA) is substantial for the best growth.
Growth, Health and Fillet Quality of Rainbow Trout (Oncorhynchus mykiss) Fed Directly with Black Soldier Fly (Hermetia illucens) Prepupae
Authors: Ozturk Rafet Cagri , Yandi Ilhan , Terzi Yahya , Altinok Ilhan
Published: November 2022

Black soldier fly (BSF; Hermetia illucens) has received growing attention as an alternative sustainable ingredient for aquafeeds. This study aimed to investigate the effects of direct BSF feeding on growth, health, and filet quality of rainbow trout. Fish were fed with dried black soldier fly (BSF) prepupae for one, two, or three meals a day. After 90 days of feeding, a substantial reduction in growth was found in dried BSF fed groups as daily dried BSF meal increased. Rejection and reduction in feed intake were only observed in the fish group that was fed with dried BSF 3 times a day. Amino acid content of BSF prepupae was significantly higher than that of commercial diet and some of the fatty acid contents were similar toor higher than commercial diet. When fish were fed with dried BSF 2 or 3 times a day, chitin accumulated in the fish's gut, causing constipation and leading to a decreased or rejected feed intake. A substantial decreasing trend was detected in arginine, histidine, and threonine with the increase in the number of dried BSF meals, while isoleucine, leucine, tryptophan, and alanine levels were considerably increased. Inclusion of one dried BSF meal in a daily feeding resulted in improvements in fish PUFAn-3, PUFAn-6, and DPA fatty acid levels.
Dietary Effects of Fig (Ficus carica) Extract on Growth, Survival and Hemato-immunological Indices in Great Sturgeon (Huso huso)
Authors: Taati Reza , Abolghasemi Seyedjavad
Published: November 2022

The present research aimed to evaluate the effects of fig (Ficus carica) extract on growth and hemato-immunological parameters of great sturgeon (Huso huso). Fig extract was added to the basal diet (protein 45.3% and lipid 14.7%) at four levels of 0, 1, 2, and 4 g kg-1 and fed in triplicate groups. A total of 84 juveniles weighing 1078.21±64.07 g were introduced into 12 ponds. Results indicated that dietary inclusion of fig extract at 2 g kg-1 significantly increased the total length, weight gain, average daily gain, specific growth rate, and condition factor of fish compared to other treatments (P<0.05). Food conversion ratio was remarkably (P<0.05) improved in fish that received fig extract at 2 g kg-1. Significant effects were recorded in number of red and white blood cells, values of hematocrit, hemoglobin, lysozyme activity, and immunoglobulin M (IgM) in fish fed diet supplemented with fig extract at 2 g kg-1 (P<0.05). Significant changes were also found in liver enzymes (AST, ALT, and ALP) among treatments. In conclusion, administration of fig extract at 2 g kg-1 can improve hematological parameters and stimulates immune responses as well as enhancement of growth performance in great sturgeon.
BERPIKIR KREATIF DALAM MENYELESAIKAN MASALAH LUAS BANGUN DATAR MENGGUNAKAN TANGRAM
Authors: Sosriyati Sosriyati , Sarassanti Yumi , Mutazam Mutazam
Published: November 2022

Abstrak: dalam penggalian ini dasari oleh rentannya kemampuan berpikir kreatif siswa sekolah menengah pertama dalam menyelesaikan luas bangun datar, sehingga pengendalian dilakukan menggunakan media tangram dalam proses pembelajaran. Mengenai arah dari penggalian ini adalah bagaimana tingkat kemampuan berpikir kreatif siswa ketika mengatasi persoalan luas bangun datar menggunakan tangram. Jenis penelitian yang digunakan adalah deskriptif kualitatif. Hasil penggalian akan memberikan gambaran secara rinci dan mendalam mengenai tingkat kemampuan berpikir kreatif siswa kelas VII A SMP Negeri 1 Ella Hilir dalam menyelesaikan masalah luas bangun datar mengunakan tangram. Selanjutnya hasil penelitian menunjukan bahwa siswa menjawab soal no 1a dimana memiliki indikator kelancaran dan keterincian sehingga jumlah persentase siswa yaitu 32% untuk kategori tinggi, pada kategori sedang yaitu 20%, sedangkan untuk kategori rendah yaitu 48%. Sedangkan untuk soal 1b, menunjukan bahwa siswa menjawab soal no 1b dimana memiliki indikator kelancaran dan keterincian dipersentasekan sebagai berikut siswa yang memiliki kategori tinggi yaitu 8%, untuk kategori sedang yaitu 8%, sedangkan untuk kategori rendah yaitu 84%. Kata Kunci :Berpikir Kreatif, Bangun Datar, Tangram.                              Abstract:  This research is motivated by the low ability of creative thinking of junior high school students in completing the area of flat wake, so researchears conduct research using tangram media in the learning process. The purpose of this study is to axamine how the level of creative thinking ability of students in solving the problem of wide flat wake using tangram. The type of research used is descriptive qualitative. The results of this study will show a detailed and in-depth picture of the level of creative thinking ability of grade VII A students of SMP Negeri 1 Ella Hilir in resolving the problem of wide flat shape using tangram. Furthermore, the results showed that students answered questisons no la which have indicator of fluency and deteail so that the percentage  of students is 32% for the high category, in the medium category, in the medium category is 20%, while for the low category is 48%. Whereas for question no 1b, it was shown that students answered question no 1b which had indicators of fluency and detail being presented as follows students who had a high category of 8%, for the medium category which was 8%, whereas for the low category it was 84%. Keywords : Creative Thinking, Flat Wake, Tangram.
KEMAMPUAN MENYELESAIKAN SOAL NILAI MUTLAK MENGGUNAKAN GAMBAR
Authors: Era Rasiana , Sarassanti Yumi , Permatasari Rindah
Published: November 2022

Abstrak:Tujuan penelitian ini untuk mengetahui kemampuan siswa dalam menyelesaikan soal matematika dalam bentuk gambar pada materi nilai mutlak di kelas X Administrasi Perkantoran SMK Bina Sabjanoba Nanga Pinoh tahun pelajaran 2019/2020.Penelitian dilaksanakan di SMK Bina Sabjanoba Nanga Pinoh dengan menggunakan  pendekatan kualitatif, metode penelitian adalah deskriptif. Populasi dalam penelitian ini yaitu seluruh siswa kelas X Administrasi Perkantoran SMK Bina Sabjanoba tahun pelajaran 2019/2020 yang terdiri dari 14 siswa. Teknik pengumpulan data menggunakan teknik observasi dan teknik pengukuran.  Alat pengumpulan data yaitu lembar observasi guru, soal tes kemampuan siswa, dan angket. Hasil penelitian menunjukan bahwa siswa mampu menyelesaikan soal nilai mutlak menggunakan gambar dengan skor total keseluruhan mencapai 958,34 dengan nilai rata-rata 68,45.Kata kunci : Menggunakan Gambar, Kemampuan Menyelesaikan SoalAbstract:The purpose of this study was to determine the ability of students to solve math problems in the form of pictures on the absolute value material in class X Office Administration of SMK Bina Sabjanoba Nanga Pinoh in the 2019/2020 academic year. The research was conducted at SMK Bina Sabjanoba Nanga Pinoh using a qualitative approach, the research method is descriptive. The population in this study were all class X Office Administration students of SMK Bina Sabjanoba in the academic year 2019/2020 which consisted of 14 students. Data collection techniques using observation techniques and measurement techniques. Data collection tools are teacher observation sheets, student ability test questions, and questionnaires.The results showed that students were able to solve the absolute value questions using pictures with an overall total score of 958.34 with an average score of 68.45.Keywords : Using Pictures, Problem Solving Ability
PENINGKATAN PEMAHAMAN KONSEPTUAL MATEMATIS DAN RESPONS SISWA MELALUI PEMBELAJARAN BERBASIS MULTI REPRESENTASI DI SEKOLAH MENENGAH ATAS
Authors: Widiyanti Widiyanti , Sugiatno Sugiatno , Mirza Ade
Published: November 2022

ABSTRAKPenelitian ini bertujuan untuk menjelaskan secara empiris mengenai peningkatan pemahaman konseptual (PK) matematis dan respon siswa terhadap materi pembelajaran barisan dan deret aritmetika melalui pembelajaran Multirepresentasi (PM). Dengan penelitian quasy experiment menggunakan pendekatan deskriptif analitik yang melibatkan 33 siswa kelas XII SMA Muhammadiyah 2 Pontianak tahun pelajaran 2014/2015 sebagai subjek penelitian. Data yang diperoleh dari penyebaran angket, observasi, dokumentasi, tes, dan wawancara, perolehannya dideskripsikan dan dianalisis. Hasilnya, menunjukkan terjadi kecenderungan  peningkatan PK matematis siswa dalam materi barisan dan deret aritmetika, serta mampu menimbulkan respon positif siswa selama proses pembelajaran. Kecenderungan tersebut terjadi karena PM yang dilakukan dengan variasi pendekatan saintifik dan penggunaan LKS yang terfokus pada learning discovery.  Kata kunci:  Konseptual Matematis, Pembelajaran Multi Representasi, Respons Siswa ABSTRACTThis study aims to explain empirically about increasing mathematical conceptual understanding (PK) and students' responses to learning materials for arithmetic sequences and series through Multirepresentation (PM) learning. With a quasi-experimental research using an analytical descriptive approach involving 33 students of class XII students of SMA Muhammadiyah 2 Pontianak in the 2014/2015 academic year as research subjects. The data obtained from the distribution of questionnaires, observations, documentation, tests, and interviews, the results were described and analyzed. The results showed that there was a tendency to increase students' mathematical PK in arithmetic sequences and series, and were able to generate positive responses from students during the learning process. This tendency occurs because PM is carried out with a variety of scientific approaches and the use of worksheets that focus on learning discovery. Keywords: Mathematical Conceptual, Multi-Representation Learning, StudentResponse
KEMAMPUAN PEMECAHAN MASALAH PADA PANJANG SISI SEGITIGA
Authors: J Selvia , Sarassanti Yumi , Lestari Novika
Published: November 2022

ABSTRAK Abstrak: Tujuan Penelitian ini adalah mengetahui Kemampuan Siswa dalam Pemecahan Masalah pada Panjang Sisi Segitiga. Metode yang digunakan dalam penelitian ini adalah penelitian deskriptif kuantitatif. Subjek penelitian ini adalah siswa kelas VIII SMP Negeri 7 SATAP Tanah Pinoh Barat. Hasil penelitian menunjukkan bahwa siswa yang mampu memecahkan masalah matematika soal cerita berkaitan dengan Panjang sisi segitiga yaitu sebanyak 18% kategori tinggi, 30% kategori sedang, dan 52% kategori rendah. Siswa yang dijadikan responden mampu menyelesaikan soal yang berkaitan dengan indikator 1 masuk kategori sedang dengan rata-rata 70,88%. Siswa yang mampu menyelesaikan soal yang berkaitan dengan indikator 2 masuk kategori rendah dengan rata-rata perentase 32,5%. Siswa yang mampu menyelesaikan soal yang berkaitan dengan indikator 3 masuk kategori sedang dengan ratarata persentase 78,32%. Dan siswa yang mampu menyelesaikan soal yang berkaitan dengan indikator 4 masuk kategori rendah dengan rata-rata persentase 35%. Kata kunci: Kemampuan Pemecahan Masalah, Panjang Sisi Segitiga Abstract: The purpose of this research is to find out the student’s abilities to solve the problem about side length of a triangle. The method which used in this research is descriptive quantitative. The subjects of this research were students of the 8th grade of SMP Negeri 7 SATAP Tanah Pinoh Barat. The result stated that students who were able to solve math problems which related to the side length of the triangles were 18% including high categories, 30% including minimum categories, and 52% including low categories. Students who became respondents were able to solve questions related to the indicator 1 in the medium categories with the average percentage of 70,88%. Students who were able to solve the questions related to the indicator 2 were in low categories with the average percentage of 32,5%. Students who were able to solve the questions related to the indicator 3 were in medium categories with the average percentage of 78,32%. And students who were able to solve the questions related to the indicator 4 were in low categories with the average percentage of 35%. Keywords: Problem Solving Abilities, Side Length of a Triangle
KEMAMPUAN REPRESENTASI DALAM MENYELESAIKAN MASALAH SISTEM PERSAMAAN LINEAR TIGA VARIABEL
Authors: SAPUTRI RESTU , Sarassanti Yumi , LESTARI NOVIKA
Published: November 2022

Abstract: This study aims to analyze the representation of students in solving the problem of the Three Variable Linear Equation System. The method used is descriptive qualitative. The subjects were students of class X. 1 IPA and X. 1 IPS MAIB Kotabaru. The results showed that students who were able to solve SPLTV problems by changing the problems that were started from words of mathematical symbols were 50% for the high category, 0 for the medium category, and 50% for the low category. Students who are able to solve SPLTV problems by changing the problems starting from the mathematical symbols image are 27% for the high category, 0 for the medium category, and 73% for the low category. Meanwhile students who were able to solve SPLTV problems using the cramer method were 77% for the high category, 0% for the medium category, and 23% for the low category.Keywords: Representation, SPLTV Abstrak: Penelitian ini bertujuan untuk menganalisis representasi peserta didik pada penyelesaian  masalah Sistem Persamaan Linear Tiga Variabel.  Metode yang digunakan yaitu deskriptif kualitatif. Subyeknya yaitu  siswa kelas X. 1 IPA dan X. 1 IPS MAIB Kotabaru. Hasil penelitian menunjukkan bahwa siswa yang mampu menyelesaikan masalah SPLTV dengan mengubah permasalahan yang diawali dari kata-kata kesimbol matematika yaitu sebanyak 50% untuk kategori tinggi, 0 untuk kategori sedang, dan 50% untuk kategori rendah. Siswa yang mampu menyelesaikan masalah SPLTV dengan mengubah permasalahan yang diawali dari gambar kesimbol matematika yaitu sebanyak 27% untuk kategori tinggi, 0 untuk kategori sedang, dan 73% untuk kategori rendah. Sedangkan siswa yang mampu menyelesaikan masalah SPLTV dengan menggunakan metode cramer yaitu sebanyak 77% untuk kategori tinggi, 0% untuk kategori sedang, dan 23% untuk kategori rendahKata kunci: Representasi, SPLTV
IMPLEMENTASI MODEL DISCOVERY LEARNING UNTUK MENINGKATKAN PEMAHAMAN KONSEP PERKALIAN BILANGAN BULAT PADA SISWA KELAS VII SMPN 06 SATU ATAP BELIMBING
Authors: ERNAWATI RINI , SAPUTRI LINDA DWI , Permatasari Rindah
Published: November 2022

Abstrak: Penelitian ini bertujuan untuk meningkatkan pemahaman konsep perkalian bilangan bulat dengan model pembelajaran Discovery Learning. Populasi penelitian ini yaitu siswa kelas VII tahun ajaran 2021/2022 dengan jumlah 12 siswa. Penelitian ini menggunakan metode eksperimen dengan pendekatan kuantitatif serta menggunakan desain penelitian One-Group Pretest-Postest. Hasil penelitian ini diperoleh setelah melakukan tes awal dan tes akhir. Dari tes awal, jumlah nilai keseluruhan diperoleh 330 dengan nilai rata-rata 27,5 sedangkan tes akhir jumlah nilai keseluruhannya 960 dengan nilai rata-rata 80,00. Untuk menentukan peningkatan hasil belajar menggunakan N-Gain diperoleh nilai 0,718 dengan kriteria tinggi. Dari hasil yang diperoleh ini cukup memuaskan dan dapat disimpulkan bahwa pembelajaran model Discovery Learning dapat meningkatkan pemahaman konsep perkalian bilangan bulat pada siswa kelas VII SMPN 06 Satu Atap Belimbing.Kata Kunci  : Pemahaman Konsep, Model Discovery Learning.  Abstract: This study purposes to improve understanding the concept of integer multiplication with the Discovery Learning model’s. The population in this study is students of grade VII in academic year 2021/2022 with a total of 12 students. This study use method of experimentation with quantitative and research design using is One-Group Pretest-Posttest Design. This result in research is achieved after to do pretest and posttest. From the pretest, total value amount is 330 with average score is 27,5 when the posttest total value amount is 960 with average score is 80,00. To determine the increase in the result of learning to use N-Gain gained value 0,718 with hight criteria. The result were satisfactory and it is concluded that model Discovery Learning can improve understanding the concept of integer multiplication at the students class VII SMPN 06 Satu Atap Belimbing.Keywords:  Understanding Concept, Model Discovery Learning
NUMERICAL AND EXPERIMENTAL INVESTIGATION OF THE EFFECT OF DELAMINATION DEFECT AT MATERIALS OF POLYETHYLENE TEREPHTHALATE (PET)PRODUCED BY ADDITIVE MANUFACTURING ON FLEXURAL RESISTANCE
Authors: DOĞRU Alperen , SÖZEN Ayberk , NEŞER Gökdeniz , SEYDİBEYOĞLU Mehmet Özgür
Published: November 2022

Polyethylene terephthalate (PET) material, which is widely used in the packaging industry due to its thermal and mechanical properties, high chemical resistance, and low gas permeability, is among the most widely used polymer materials in the world. These properties have made their use in additive manufacturing methods widespread. Determining how some common additive manufacturing defects affect the products produced by these methods will increase the adoption of these technologies in the final product production. In this study, the investigation of the effect of layer non-joining defect called delamination on the impact strength of PET material produced by additive manufacturing method at different layer thicknesses was carried out experimentally and numerically. The effects to flexural stress on the artificially created layer adhesion defect on the middle layers of the parts produced and modeled with a layer thickness of 0.1/0.2/0.3mm were investigated. It has been observed that the increase in layer thickness decreases flexural strength. In addition, while the flexural strength of the specimens containing delamination decreased, the increase in layer thickness accelerated this decrease.
CURRÍCULO QUEREMOS E DESEJAMOS CONSTRUIR NAS ESCOLAS EM UM FUTURO PÓS-PANDÊMICO?
Authors: Abreu Soares Erika Mariana
Published: November 2022

Este texto procura pensar a educação como prática libertadora problematizando o currículodesenvolvido dentro das instituições escolares. Um currículo que hierarquiza as relações, reproduzmodelos de ensino, imprime rotina, demanda repetição e representação de conteúdos programáticossem estimular o pensamento reflexivo e crítico do/a aluno/a. Por outro lado, é possível construirmosum currículo que a criticidade esteja presente no diálogo entre o/a professor/a e o/a aluno/a, onde aspalavras pronunciadas se tornam forças para vivenciarmos uma educação libertadora. Para orientaressa problematização escolhi os estudos e pesquisas acerca da filosofia da diferença.
E-waste: A new challenge for waste management in India
Authors: Syed Saif Ali
Published: November 2022

WEEE (waste from electrical and digital device's) comes beneath a special class of waste which is the end result of industrialization and ever-growing demand of digital merchandise in daily lifestyles. With growing usage waste manufacturing is likewise increasing. Now, the scenario is alarming as a big quantity of waste is generated via India in addition to other international locations. The situation in India is a whole lot worse because approximately 80 % of the e-waste generated inside the US is
exported to India, China and Pakistan beneath the call of charity. Only 3 % of general WEEE-waste generated is recycled nicely in India. The relaxation of it's far dealt with by people who paintings with naked fingers, without mask under unhygienic conditions, informally recycling tons of e-waste for approximately 12-14 hours a Day. It causes each environmental as well as health issues. E-waste recycling (i.e. 3 R’s) is a concept hardly in lifestyles in India. As of now most of e-waste generated is getting dumped in rivers or dumping yards both of getting nicely recycled or reused after treatment which in end result have negative results on environment in addition to fitness issues. So basically,
paper describes the contemporary situation of e-waste control in India and different parts of globe. It also describes the case take a look at of trend of e-waste in India with other countries. In remaining ten years, it's far found that e –waste is growing daily and the major mills of these e-waste are computer systems, mobile, telephone gadget extensively utilized by the authorities, public region agencies and personal sectors, generate nearly about 75% of e-waste and on other hand with the contribution of man or woman family being most effective 16%. According to ASSOCHAM compound Annual growth price of electronic waste is 30%. Computer equipment's make contributions about 70% of total e-waste generated in India and telecommunication equipment's debts for nearly 12%. State smart Maharashtra ranked first observed by means of Tamil Nadu and UP in ewaste pollution and amongst all cities Mumbai ranks first in producing e-waste observed with the aid of Delhi and Bangalore. No. Of legal guidelines are framed but none is able to stop this casual recycling. In this paper, countrywide and worldwide e-waste situation is discussed in conjunction with hazards as a result of e-waste and bit approximately its recycling.