bluuebunny/crossref_metadata_2025 huggingface dataset:
Superior Graphene oxide-Cu2SnS3-PANI (GO-CTS-PANI) adsorbent for highly efficient treatment of mercury ion from water resources; Experimental Practices, Classical and Artificial Intelligence Modelling
Authors: Enferadi Sara , Eftekhari Mohammad , Gheibi Mohamad , Moghaddam Nikoo Nabizadeh , Wacławek Stanislaw , Behzadian Kourosh
Published: April 2023

This study presents a new type of adsorbent, Graphene
oxide-Cu2SnS3-Polyaniline (GO-CTS-PANI) composite that was synthesised
and used for the removal of mercury ions (Hg2+) from water sample. The
adsorbent was characterised using various techniques including Fourier
transform infrared spectrophotometry (FT-IR), Field Emission Scanning
Electron Microscopy (FESEM), Energy-dispersive X-ray spectroscopy (EDX),
Elemental Mapping analysis and X-ray diffraction analysis (XRD). The
Box-Behnken method was used to optimise the key factors affecting the
adsorption process, including pH, amount of adsorbent, and contact time
with the application of Design Expert Version 7.0.0. Results showed the
adsorption process was highly efficient at pH 6.5, 12 mg of GO-CTS-PANI
adsorbent, and 30 minutes of contact time, achieving a maximum removal
percentage of 95% for 50 mg/L Hg2+ ions. The study investigated the
isotherm and kinetic of the adsorption process which showed the
adsorption process occurred in sequential layers (Freundlich isotherm)
and was continued by a physical interaction between the adsorbent and
adsorbate. The pseudo second order kinetic equation is an appropriate
model to interpret of kinetic data. The Response Surface Methodology
(RSM) assessment indicated that pH was the most effective parameter for
maximising the adsorption efficiency. The study also applied artificial
intelligence methods such as Random Forest algorithm due to enhancement
of adsorption process efficiency prediction and compare their
performance to classical models. The findings show the Random Forest
algorithm was highly accurate, achieving a correlation coefficient of
0.98. This study highlights the potential of GO-CTS-PANI composite for
efficient removal of Hg2+ ions from water resources.
Simultaneous determination of metformin and glibenclamide by RP-HPLC in orodispersible tablets and their pharmacokinetic evaluation
Authors: Sher Muhammad , Bashir Sania , Fatima Arooj , Qaisar Muhammad Naeem , Naeem-ul-Hassan Muhammad
Published: April 2023

In the present study a simple HPLC method was developed and validated
for simultaneous determination of metformin and glibenclamide in newly
designed orodispersible tablets. The separation was attained on ODS C18
column using a mixture of methanol and acetonitrile (70:30 % v/v) as
mobile phase at pH of 3.5 ± 0.05. The retention times recorded for
metformin and glibenclamide were 1.697 and 3.027 min, respectively at a
flow rate of 1.0 mL min-1 and detection wavelength of 232 nm. The
linearity was observed for the concentration range of 0.025-0.5 µg mL-1
with r = 0.996 for metformin and 0.025-0.2 µg mL-1 with r = 0.995 for
glibenclamide. The limits of detection and quantification were 25 ng
mL-1 and 75 ng mL-1 for metformin and 20 ng mL-1 and 60 ng mL-1 for
glibenclamide, respectively. The drug recovery was 99.21 ± 0.78 for
metformin and 98.95 ± 0.44 for glibenclamide. Validations studies
revealed that method was accurate, precise, robust, specific and
sensitive. The method was successfully applied for the pharmacokinetic
study of both drugs after single dose oral administration of newly
designed orodispersible tablets. Various pharmacokinetic parameters,
like Tmax, Cmax, AUC0-t, AUC0-∞, t1/2, and clearance were calculated by
linear trapezoidal method.
An Online Hyper-volume Action Bounding Approach for Accelerating the Process of Deep Reinforcement Learning from Multiple Controllers
Authors: Rastegarpanah Alireza , Aflakian Ali , Hathaway Jamie , Stolkin Rustam
Published: May 2023

This paper fuses ideas from Reinforcement Learning (RL),
Learning from Demonstration (LfD), and Ensemble Learning into a single
paradigm. Knowledge from a mixture of control algorithms (experts) are
used to constrain the action space of the agent, enabling faster RL
refining of a control policy, by avoiding unnecessary explorative
actions. Domain-specific knowledge of each expert is exploited. However,
the resulting policy is robust against errors of individual experts,
since it is refined by a RL reward function without copying any
particular demonstration. Our method has the potential to supplement
existing RLfD methods when multiple algorithmic approaches are available
to function as experts. We illustrate our method in the context of a
Visual Servoing (VS) task, in which a 7-dof robot arm is controlled to
maintain a desired pose relative to a target object. We explore four
methods for bounding the actions of the RL agent during training. These
methods include using a hypercube and convex hull with modified loss
functions, ignoring actions outside the convex hull, and projecting
actions onto the convex hull. We compare the training progress of each
method with and without using the expert demonstrators. Our experiments
show that using the convex hull with a modified loss function
significantly improves training progress. Furthermore, we demonstrate
faster VS error convergence while maintaining higher manipulability of
the arm, compared to classical image-based VS, position-based VS, and
hybrid-decoupled VS.
FACTORS INFLUENCING PATIENT ADOPTION OF E-HEALTH SERVICES
Authors: Ráti József , Kemény Ildikó
Published: May 2023

In this study, an extended version of the Technology Acceptance Model
(TAM) was used to understand the factors that might influence patient
behaviour. In addition to the “typical” TAM variables (positive
attitude or technological readiness), this study examines the role of
social and individual benefits and COVID-19 anxiety on willingness to
try, intention to use, actual use and satisfaction in a country in the
Central and Eastern European region. This extension and the chosen
region add novelty to the research. The results of linear and logit
regression analysis based on an online questionnaire show that
individual benefits and positive attitudes have a strong effect on
willingness to try and use, but perceived social benefits do not have a
significant effect. These results highlight the importance of awareness
campaigns that highlight the personal benefits of e-health and address
the general mistrust of the technology.
An emprical study to investigate the size of non-governmental organizations in OECD countries
Authors: Tosun Ayşe , Yilmaz Ayfer
Published: May 2023

This study aimed to analyze the factors affecting the size of non-governmental organizations (NGOs) from a multinational perspective. Empirical analyses were conducted through econometric modeling, and the data of the 17 countries from 2003 to 2019 were used. The data was obtained from the World Bank and OECD database. We used advanced panel data estimation techniques (CUP-FM and CUP-BC) to obtain long-run coefficients. GDP per capita, general government final consumption expenditure, adult education at tertiary level, and Gini index growth declined grants by private agencies and NGOs? contribution to GDP (GinGDP) initially but after a threshold level, GinGDP increased with growth at later stages of these variables. Urban population growth, employment, and foreign population have reducing effect on the size of NGOs. The size of NGOs has bidirectional causality relationship between GDP per capita, adult population at tertiary education level, employment to population ratio, and Gini index; and unidirectional causality between urban population growth, general government final consumption expenditure, and foreign population.
Investigating a Teacher’s Beliefs and Practices in Teaching Grammar: A Case Study of a Senior Teacher of English in a High School in Jakarta
Authors: Arifin Syaadiah
Published: April 2023

What a teacher believes and does in grammar instruction is a substantial issue that needs to be explored. Understanding the teacher's beliefs could facilitate a better understanding of the teacher's classroom practices and, eventually, the nuances of her student's performance. A few studies have been conducted on a teacher's beliefs and practices in teaching grammar in the Indonesian context. However, studies investigating a senior teacher's beliefs and practices in teaching grammar are infrequent in Indonesia. The teaching of grammar has always been controversial for language teachers in L2/ EFL settings. The main problem is how grammar should be taught and acquired. The aim of this study is to analyze a teacher's beliefs and practices relating to the teaching of grammar. The data were gathered through an in-depth interview with the teacher and classroom observations. This research focused only on a female senior teacher who has taught English for tens of years in a high school environment. From the in-depth interview and the observations, the researcher obtained meaningful information from the teacher, starting from the beginning of her teaching, then during the Post Method phase, and through the phase for the integration of the teaching of grammar with technology. From the interviews and classroom observations, the researchers can conclude that the teacher has shown consistency with her beliefs, and the several teaching innovations while still adopting the Deductive Method.
Student Satisfaction and Priority Quadrants towards E-Learning
Authors: Rachmawati Rr , Azis Yunia Mulyani , Sarosa Moechammad
Published: April 2023

The e-learning learning method has long been known in distance learning and is increasingly being used during a pandemic, especially during an endemic period like today. Students who are accustomed conducted face-to-face learning as a cause of low learning outcomes. Several studies using multiple linear regression analysis have concluded that the level of student satisfaction with the e-learning learning model has an effect on learning outcomes. Additional analytical methods are needed to measure the quality of e-learning services and at the same time be able to make priority scales for handling them. The purpose of this study was to analyze the partial and simultaneous effect of service equal on student satisfaction in the e-learning method, measure the level of student satisfaction and make a priority scale for handling it. The subjects were 100 students who took MSDM courses. The research method used observation, literature studies related to service quality regarding e-learning quality. Data analysis was done by calculating the difference between the average values of reality and expectations for each service quality attribute. The result found that (1) partially the reliability variable is the variable that has the most influence, while the assurance variable is the variable that has the least effect on student satisfaction, (2) the tangible variable has no effect on satisfaction, and (3) the attributes that are the priority improvement is the attribute of the timeliness of teaching and the teacher providing explanations (guidelines) on the learning materials and the use of the e-learning platform.
Academic Supervision Model Based on Edmodo Application
Authors: Maria Marta Wulan Sukma Dewi  , Yari Dwikurnaningsih  , Marinu Waruwu
Published: April 2023

The Covid 19 pandemic has had an impact on the implementation of academic supervision. This study aims to develop an online-based academic supervision model. The type of research conducted is research and development (Research and Development). The research subjects were 4 (four) school principals and 17 (seventeen) elementary school teachers. Data collection techniques used were interviews, documentation studies, and questionnaires. Qualitative data were analyzed using the Miles and Huberman model. Quantitative data obtained through a questionnaire. Quantitative data were analyzed by validation tests and limited trials using quantitative descriptive techniques with mean and percentage. The results showed that the MARIA academic supervision model (M - Mapping, A - Arranging the solution, R - Running the observation, I - Identifying the data, A – Acting the follow up) based on the Edmodo application has an impact on improving the performance of school principals and techers in elemantary schools, with the result of limited product trials on school principals at the 88% level and techers at the 86%  level with a very valid and feasible category to use. The implications of this research were facilitating the implementation of information technology-based supervision, improving the performance of school principals, increasing teacher competence in carrying out learning, and reducing teacher stress when supervised.
Moodle E-learning to Improve Motivation and Learning Activities at Green Campus
Authors: Koderi  , Guntur Cahaya Kesuma
Published: April 2023

Many students struggle to use e-learning for attendance, interactive lectures, assignment submission, and access to resources and tests. E-learning is said to benefit students in terms of activities and accomplishments. This survey aims to analyze and evaluate the Moodle E-learning role in enhancing motivation and learning activities at Green Campus. A mixed-method method with an explanatory sequential design is used in this investigation. This study included 221 participants. Questionnaires, interviews, and documentation are used to collect data. The statistical regression method was then used to assess the research data. The study's findings indicate that the variable e-learning platform Moodle has a substantial influence on student learning activities at Green Campus. This variable has a major impact on changes in student accomplishment motivation. According to this research, lecturers must make good and fascinating use of the Moodle e-learning platform to boost all activities and student achievement motivation in learning, not just listening activities. Furthermore, universities should be able to ask users to actively participate in developing the design and content of future e-learning developments.
Multimodal-Based Learning Improves Students' Reading Ability in Perspective of Systemic Functional Linguistics
Authors: Purba Ridwin , Herman Herman  , Endang Fatmawati  , Nanda Saputra  , Yusniati N. Sabata
Published: April 2023

This study was encouraged by taking advantage of the low analytical literacy abilities of students in junior high schools. This research aims to analyze Multimodal-Based Learning in Improving Students' Reading Ability from a Systemic Functional Linguistic Perspective. This research was conducted using quantitative research, incredibly descriptive, and experimental research. Data is collected through comment sheets and ratings. The respondents in this study were 210 students and nine teachers in seven classes. The tools used to obtain learning statistics are (1) an assessment to measure the competence of junior high school students and (2) note sheets to obtain statistics on the results of looking at the learning system. The statistics have been processed using descriptive statistical judgments and inferential facts. Based on the research results, the analytical learning system in the classroom still does not meet the actual learning requirements. The second result is that the multimodality method has proven effective in analyzing the literacy talents of junior high school students from various backgrounds. Based on this, the multimodality learning method can be used to improve the analytical literacy talents of junior high school students in classes with various backgrounds.
ICT TPACK-Oriented of Floor Gymnastics Learning Media for Elementary School Students
Authors: Made Made Agus Wijaya , Suwiwa I Gede , Bayu Wahyu Indra , Estrella Erwin O
Published: April 2023

Physical education teachers during the Covid-19 pandemic generally used textbooks and video tutorials to visualize basic gymnastic movements. It makes it difficult for students to learn. This study aims to develop information, communication and technology/ICT Technological Pedagogical and Content Knowledge/TPACK-oriented gymnastics basic skills learning media for high-grade elementary school students. This type of research is development. This development research uses the ADDIE model design, which focuses on the analysis and design stages discussion. Data collection methods are observation, interviews, and questionnaires. The data collection instrument is a questionnaire. Data analysis in this study was carried out using descriptive quantitative and qualitative analysis. The results showed that first, 342 people (82%) of elementary school students needed ICT TPACK-oriented gymnastics basic skills learning media. Based on data analysis and discussion, this study concludes that elementary school students need learning media for basic ICT TPACK-oriented gymnastics skills. The motion assignments are designed on a combination of basic movement materials using a jumping table, balance movements on the floor and kayaks that are varied by the curriculum, guaranteeing the adequacy of learning motion. Some characters are internalized, and the safety and security of students are guaranteed.
Augmented Reality Media Design for Electro-Pneumatic Practical Learning for Vocational High School Students (VHS)
Authors: Sukardjo Moch , Uswatun Khasanah  , Stephanus Turibius Rahmat  , Khaerudin
Published: April 2023

Many students still need to be skilled and able to practice electro-pneumatic expertise. This research aims to design augmented reality media for electro-pneumatic subjects. This study uses the development research method by adopting the ADDIE model with 5 stages. The media produced in this study will be analyzed for its practicality. The sample in this study was 16 students of class X. The instrument used for experts was using a questionnaire with 4 options. The instrument given to students to find out practicality is in the form of a questionnaire with 2 yes and no options. Data collection techniques using documentation, interviews, questionnaires, and literature review. Data analysis used quantitative descriptive data analysis techniques. The study's results, namely the assessment of instructional design experts from two experts, obtained a score of 4.43. the assessment of two material experts obtained a score of 4.5, and the assessment of two media experts obtained a score of 4.22. It was concluded that augmented reality media designed for electro-pneumatic subjects is feasible. The results of the questionnaire filled out by students scored above 80. From the results of the practicality test, it can be concluded that augmented reality media is quite practical. The implications of applying augmented reality media in practical electro-pneumatic learning in schools will be able to improve students' practical skills.
Unpacking Stages of Mobile-Assisted Language Learning Adoption: A Narrative Inquiry
Authors: Mahardika Anak Agung Ngurah Yudha Martin , Rahmajanti Sri , Suwastini Ni Komang Arie
Published: April 2023

Technological advancements necessitate adaptation in the field of education, particularly for language teachers. This need cannot simply be accommodated in the classroom. In the process of adopting technology, teachers experience various processes that must be got through. This current study was aimed at filling the gap in the issues related to the complexity of MALL adoption in higher education. To fill the need for descriptive richness and picture the entire adoption process, a qualitative approach was used; specifically, Narrative Inquiry (NI). There was a total of three people who participated in the research. Data was gathered through the use of a narrative frame, an empty box, and a structured interview guide. The study's findings highlight the simultaneous and ongoing nature of the adoption process. Three distinct phases of adoption were identified by this research: acceptance (before use), usage (during use), and confirmation (after use), with three distinct evaluation procedures for each phase. Another important finding is that intention is not necessarily a drive to usage. There is review process that bridges the intention and usage. The process of intention and review are simultaneous. Nevertheless, whereas intention is likely immediate, the review takes longer period of decision making. The review process could be the answer to the debate in TAM studies related to the reasons of inconsistency of the intention to use to the usage.
Parenting Style on the Civics Learning Outcome
Authors: Yuliani Ketut Ari , Parmiti Desak Putu , Bayu Gede Wira
Published: April 2023

The implementation of learning in the school is pretty good, but learning at home is not optimal because students have less desire to learn independently. Lack of parenting guidance interfered with learning activities. This study aimed to analyze the relationship between parenting styles and learning outcomes of fifth-grade elementary school students in Civics subject. The type of research was ex post facto. The research population was 37 students. Students on the first semester of the fifth-grade elementary school. The method of collecting data was non-test. The questionnaire was used as an instrument to collect the data. The data analysis technique used was descriptive statistical analysis and inferential statistical analysis. The study results were 0.655 > 0.316, so there was a correlation between study habits and the learning outcomes of fifth-grade elementary school students. There was a positive relationship between parenting and learning outcomes. It was concluded that a good parenting style would significantly improve student learning outcomes.
Do Macroeconomic Variables and Effective Fiscal Policies Affect Indonesian Economic Development?
Authors: Basuki Agus Tri
Published: April 2023

This study aims to examine the impact of demographic, poverty, fiscal policy, and investment on economic growth in 20 provinces. This study uses fixed effect techniques to estimate panel regression. The data used from 2008 to 2021 comes from the Central Bureau of Statistics and the Ministry of Finance of the Republic of Indonesia. The results of the study show that population, poverty, balanced funds, government spending, foreign capital influence on economic growth. The impact of government spending through education, health, agriculture, fisheries, and marine sectors has not been effective in encouraging regional economic growth. Other results from BPK's opinion on Regional Government Financial Reports have an impact on encouraging economic growth. These findings indicate that the government must take the necessary steps to reduce the impact of balance funds which in the short term impede economic growth, increase the effectiveness of government spending through targeting development spending and the use of the budget must be able to provide clear information, regarding the goals, objectives, results and benefits of the budget that are formulated using a performance approach that prioritizes the performance of work results from a predetermined budget or input allocation plan and continues the policy of providing opinions on Regional Government Financial Reports. If the BPK's opinion shows deviations, then it must be followed up immediately so that the regional economic development target can be achieved.
Comparison of the oncolytic activity of recombinant vaccinia virus strains LIVP-RFP and MVA-RFP against solid tumors
Authors: Shakiba Y , Naberezhnaya ER , Kochetkov DV , Yusubalieva GM , Vorobyev PO , Chumakov PM , Baklaushev VP , Lipatova AV
Published: May 2023

Among oncolytic viruses, modified vaccinia virus Ankara (MVA), a highly attenuated vaccinia virus (VV) is a well-studied variant with promising results in preclinical and clinical trials. The Lister VV strain from the Moscow Institute of Viral Preparations (LIVP) has been studied to a lesser extent than MVA and has a different oncolytic property from MVA. The aim of this work was to compare the oncolytic efficacy of LIVP and MVA strains against solid tumors. We developed recombinant variants LIVP-RFP and MVA-RFP; to enhance onco-selectivity thymidine kinase (TK) gene was inactivated by insertion of red fluorescent protein (RFP) gene to the TK locus. The replication kinetics and oncolytic activity of the obtained recombinant strains were evaluated in vitro and in vivo on tumor cell lines and mouse syngeneic tumor models of metastatic mouse 4T1 mammary adenocarcinoma, CT26 colon adenocarcinoma, and B16 melanoma. Both MVA-RFP and LIVP-RFP showed high replication efficiency in tumor cells and pronounced oncolytic activity against B16 melanoma and 4T1 breast adenocarcinoma allografts. In relation to 4T1, which is a model of triple negative human breast cancer, LIVP-RFP showed more than 50% increased cytotoxicity in in vitro tests compared to MVA-RFP, as well as a significant slowdown in the progression of 4T1 allografts and an increase in animal survival in experiments in vivo. Thus, the LIVP strain may be more promising than MVA as a platform for the development of recombinant oncolytic viruses for the breast cancer treatment.
Optimum Design Of Elastic Continuous Foundations With The Artificial Bee Colony Method
Authors: TURAN Seda , AYDOĞDU İbrahim , EMSEN Engin
Published: May 2023

The study presents the investigation of the elastic behavior of the soil in the optimal design of continuous foundations according to the rigid solid case. For the investigation, the optimization algorithm that can find optimal section and reinforcement details of continuous foundations has been developed. The developed algorithm uses one of the well-known meta-heuristic methods named the artificial Bee Colony method to find the optimal design. The Winkler spring hypothesis (analytic solution) is used to calculate internal forces and stresses in elastic continuous foundations. We used the real-size design example previously used in the literature to test the elastic soil effect and algorithm performance. The obtained results show that the current algorithm performs well, and lower cost values are obtained in the elastic design.
TARI PAYUNG PADA MASYARAKAT PESISIR SIBOLGA: KAJIAN FUNGSI
Authors: Sari Juliana Tri , Rahmah Sitti
Published: April 2023

Penelitian ini memiliki tujuan mendeskripsikan fungsi tari payung pada masyarakat Pesisir Sibolga. Pada penelitian ini teori yang digunakan yaitu teori fungsi dari Jazuli yakni sebagai sarana upacara, sebagai sarana pertunjukan, sebagai hiburan, dan sebagai media pendidikan. Pada penelitian ini menggunakan perhimpunan data seperti dokumentasi, wawancara, dan kajian teori, Teknik analisis data yang dipakai yaitu penyajian data, reduksi data, dan penarik kesimpulan serta pengecekan. Hasil dan pembahasan menunjukan sebagai fungsi tari payung adalah digunakan pada acara adat pernikahan untuk memberikan nasehat pada mempelai pria dan wanita sebagai bentuk tanggung jawab suami terhadap istri; sebagai tontonan adalah yang dimaksud sebagai penyampai/ penerima pesan dan fungsi tontonan lebih mementingkan aspek estetika, sebagai fungsi hiburan adalah untuk rasa kepuasan diri penari tersebut tanpa mempunyai tujuan lebh mendalam dan yang terakhir fungsi tari payung pada masyarakat Pesisir Sibolga yaitu sebagai media pendidikan adalah bertujuan untuk mencegah siswa dari pengaruh budaya asing dan dapat melestarikan kebudayaan dan menjaga kekhasan daerahnya, sedangkan bagi pelaku tari payung menggunakan baju kurung berwarna kuning sebagai busananya, dan alat musik yang digunakan yaitu biola, singkado, dan akordion.
Efek Formulasi Andrometa terhadap Leptocorisa acuta Thunberg
Authors: Sari Dian Ekawati , Fitrianti Fitrianti , Bakhtiar Bakhtiar
Published: April 2023

Leptocorisa acuta menyerang tanaman padi pada fase generatif dengan cara mengisap bulir hingga menjadi hampa. Serangan L. acuta dapat memengaruhi kualiatas gabah dan beras bahkan dapat menurunkan produksi tanaman padi. Beberapa metode pengendalian telah dilakukan oleh petani, antara lain penggunaan pestisida kimia. Namun demikian, penggunaan pestisida sintetik di kalangan petani cenderung menambah dosis dan frekuensi aplikasi yang lebih banyak. Berdasarkan hal tersebut maka dibutuhkan alternatif pengendalian yang ramah lingkungan untuk pengendalian hama tersebut. Salah satu pengendalian yang ramah lingkungan yaitu pemanfaatan ekstrak tanaman Andropahgus paniculata (sambiloto) dan cendawan entomopatogen Metarhizium anisopliae yang bertujuan agar dapat bereaksi cepat dalam mengendalikan L. acuta. Kedua agen pengendali hama tersebut dibuat dalam satu formulasi yang disebut Andrometa. Penelitian ini bertujuan untuk mengetahui pengaruh formulasi Andrometa terhadap hama L. acuta pada tanaman padi. Penelitian ini terdiri atas lima perlakuan formulasi Andrometa yaitu Formulasi 1 (2 g ekstrak A. paniculata + 5 g biakan massal M. Anisopliae), Formulasi 2 (3 g ekstrak A. paniculata + 7,5 g biakan massal M. Anisopliae), Formulasi 3 (4 g ekstrak A. paniculata + 10 g biakan massal M. Anisopliae), Formulasi 4 (5 g ekstrak A. paniculata + 12,5 g biakan massal  M. Anisopliae), dan Formulasi 5 (6 g ekstrak A. paniculata + 15 g biakan massal M. Anisopliae) serta satu perlakuan kontrol. Hasil penelitian menunjukkan bahwa semua perlakuan dengan formulasi Andrometa efektif dalam membunuh L. acuta dan jumlah hari yang dibutuhkan formulasi dalam mematikan L. acuta yang terbaik didapatkan pada Formulasi 5 yaitu 3 hari setelah aplikasi.
Respons Peningkatan Perkecambahan Benih dan Pertumbuhan Bibit Tanaman Secang (Caesalpinia sappan L.) terhadap Penggunaan Zat Pengatur Tumbuh dan Media Tanam yang Berbeda
Authors: Al Adawiah Alin Robiah , Rosniawaty Santi , Anjarsari Intan Ratna Dewi
Published: April 2023

Tanaman secang dapat diperbanyak secara generatif dengan melibatkan penggunaan zat pengatur tumbuh (ZPT) untuk memperbaiki perkecambahan dan meningkatkan pertumbuhan kecambah sebelum pembibitan. Sementara itu, media tanam yang tepat dibutuhkan pada saat pembibitan untuk mendukung pertumbuhan bibit yang optimal. Penelitian ini bertujuan untuk mengetahui pengaruh perlakuan perendaman ZPT auksin dan sitokinin serta media tanam yang berbeda dalam meningkatkan persentase perkecambahan benih dan pertumbuhan bibit secang. Penelitian dilakukan pada bulan September-Desember 2021 di Kel. Gunung Gede, Kec. Kawalu, Kota Tasikmalaya, Jawa Barat pada ketinggian 317 mdpl. Rancangan yang digunakan adalah Rancangan Acak Kelompok (RAK) faktorial dengan 14 perlakuan dan 3 ulangan. Perlakuan yang diuji adalah perendaman benih secang menggunakan larutan ZPT (tanpa perendaman, perendaman dalam aquades, indole-3 acetic acid [IAA] 1,25 ppm, naphthalene-1-acetic acid [NAA] 1,25 ppm, 6-benyl amino purine [BAP] 1,25 ppm, IAA 1,25 ppm + BAP 1,25 ppm, NAA 1,25 ppm + BAP 1,25 ppm) dan jenis media tanam (topsoil, topsoil + pukan sapi 2:1). Hasil penelitian pada fase perkecambahan menunjukkan bahwa IAA + BAP 1,25 ppm mampu memberikan persentase perkecambahan dan kecepatan berkecambah terbaik sebesar 66,5% dan 7,3% KN/etmal. Hasil penelitian fase pembibitan menunjukkan adanya interaksi antara perlakuan perendaman larutan ZPT dengan penggunaan media tanam terhadap jumlah daun dan diameter batang bibit secang pada umur 12 minggu setelah tanam (MST).  Perlakuan perendaman NAA 1,25 ppm + BAP 1,25 ppm memberikan hasil terbaik pada jumlah daun umur 6 MST dan diameter batang bibit umur 12 MST. Penggunaan media tanam topsoil mampu meningkatkan hasil jumlah daun dan bobot kering total bibit secang.
How does the PEN Program Affect the Sustainability of MSMEs: A Case Study in Bantul
Authors: Andriyani Nur , Maulana Huda Kurnia , Salam Annisa Nur , Utami Frisca Marta , Kinasih Alivia Nabila , Ardiansyah Syarif , Iskandar Iskandar
Published: May 2023

The Indonesian economy has faced a pandemic for the last two years. The Covid-19 pandemic is the starting point for implementing digital technology for MSMEs. MSMEs and the government maintain the sustainability of MSMEs, which are one of the pillars of the economy. This study aims to analyze the impact of digital technology implementation, human capital and PEN program in maintaining business sustainability directly or through competitive advantage. The object of research is culinary MSMEs in Bantul Yogyakarta Regency. SEM PLS is employed to estimate the primary data by using WARPS PLS 6.0 application. The results revealed that digital technology variables could directly affect business sustainability. Meanwhile, human capital and the PEN program affect business sustainability through competitive advantage. The results suggest government extend the fiscal stimulus.
Determinants of the Successful Digital Campaigns on Zakat: an Analysis Based on Islamic Marketing Perspective
Authors: Nasution Juliana
Published: May 2023

Zakat campaigns have taken place from time to time in various phases of muslim history. The zakat campaign has been said to be effective, but evidence in Indonesia shows that the zakat literacy of muslim communities is not yet high, they also tend to choose to distribute zakat directly, and there is a wide gap between the potential and reality of zakat collection. This study aims to examine the determinants that influence the success of a digital zakat campaign, consisting of content or messages in the zakat campaign, amil or zakat campaigners, campaign target digital literacy, social media as a campaign platform, and campaign methods. This research is a quantitative research, with respondents consisting of 100 muzakki (zakat donator) at LAZ Dompet Dhuafa Waspada North Sumatra, Indonesia. Data analysis techniques using descriptive statistics and SEM-PLS using SmartPLS 4.0 software. The results of the study show that content and social media have an effect but not significant on the success of the zakat digital campaign. Meanwhile, the amil factor and campaign method have a significant effect on the success of the zakat digital campaign. Meanwhile, digital literacy has a negative and insignificant effect on digital zakat campaigns. The results of this study indicate the importance of amil positioning in the success of the zakat campaign. This study proposes that zakat institutions cadre their own amil celebrities.
Investigation of COVID-19 Impact on Aerosol Optical Depth Over Malaysia and Indonesia
Authors: Amin A.R.M. , Mardiah A. , Adida M. , Munirah M. , Iskandar H.
Published: May 2023

Lockdown or movement control order (MCO) was implemented all over the world, including Malaysia and Indonesia, during the coronavirus disease 2019 (COVID-19) pandemic. During the lockdown period, human activities were restricted. The restriction led to the reduction of human-made particulate matter released to the atmosphere. One of the indicators that could be used to estimate the concentration of particulate matter in the atmosphere is aerosol optical depth (AOD). The aim of this study is to investigate the variation in AOD level over the Malaysia and Indonesia region during this restriction period. This study has utilized monthly and daily Moderate Resolution Imaging Spectroradiometer (MODIS) Terra AOD product that can be accessed through National Aeronautics and Space Administration (NASA)’s Geospatial Interactive Online Visualization and Analysis Infrastructure (GIOVANNI) system. The developed long-term time-averaged map showed a high AOD level over Sumatera and South Kalimantan, with the maximum value being 0.4. The comparison among during, pre- and post-lockdown periods showed a reduction in the AOD level. The maximum AOD level decreased to 0.3 during the lockdown period compared to 0.4 in the pre- (2019) and post-lockdown periods (2021 and 2022). Average monthly time series showed no spike in the AOD level in 2020 and 2021. Hovmöller diagram showed low AOD throughout the latitude and longitude during lockdown compared to the pre- and post-lockdown periods. Analyses of the yearly AOD level showed reduction in the AOD level from +11.31% in 2019 to −18.17% and −18.01% in 2020 and 2021, respectively. The result also showed that the average daily AOD percentage during the lockdown period in 2020 had decreased to −5.34% from −3.18% in 2019 and had increased to +1.26 in 2021.
Does the Ant Functional Group Classification Really Work? A Validation in Two Contrasting Habitats from Central Mexico
Authors: Reyes-Morales Paola Sofia , Lara Carlos , Castillo-Guevara Citlalli , Cuautle Mariana
Published: May 2023

Ants have historically been classified into “functional groups” (FGs) to facilitate their interpretation as bioindicators. A particularly popular classification scheme is the one proposed by Andersen, based on the Australian myrmecofauna. These classification criteria suggest that ant abundance is linked to stress and disturbance, such that their affinity to and tolerance of particular conditions enables them to inhabit specific ecological contexts. Herein, we aimed to validate whether the climatic affinity postulated by the FG approximation can suggest FG composition and abundances in Mexican ant communities, such as has been previously evaluated by studies in other regions worldwide. In a protected natural area with a history of anthropogenic pressure, we evaluated the variation in temperature and humidity of two habitat types during consecutive years: a native oak forest and an induced grassland. The ant communities of the two sites were monitored using three collected methods (baits, pitfalls, and direct observations) and classified into FGs under Andersen’s criteria. We found 34 ant species. The induced grassland site (28 species) was more species rich, more diverse, and had higher ant abundance than the oak site (21 species). There was a similarity in species composition between the sites (44.78%). In the oak forest, FGs related to cold temperatures were the most abundant, while in the induced grassland, heat-tolerant FGs were most abundant. Our findings support that Andersen’s functional group classification is useful in suggesting habitat use in Mexican ant species. Likewise, our data are in accordance with previous findings that both the presence and abundance of FGs must be considered for an adequate application of this classification scheme.
Alternative Approach Leading to Reduction in Measurement Instrument Uncertainty of EMI Measurement
Authors: Bittera Mikulas , Hallon Jozef , Szolik Imrich , Hartansky Rene
Published: May 2023

Even in the field of electromagnetic compatibility, low measurement uncertainty means high measurement quality. Although there are standardized procedures for obtaining the uncertainty of such a measurement, which facilitate uncertainty estimation, modern approaches show further reduction possibilities. The paper presents an alternative approach to reducing measurement instrument uncertainty in the case of electromagnetic interference measurement based on many years of our experience and a large number of measurements in this field. In the paper, two different methods of uncertainty reduction are described. The first method is based on a detailed analysis of the sources of uncertainty and the subsequent division of the analyzed frequency band into more subranges. Another method uses the choice of the antenna factor, which also contains information about the test site where the measurement is carried out. In this way, despite a lengthy analysis, it is relatively easy to achieve a measurement instrument uncertainty that is below the maximum measurement uncertainty given by the CISPR standard.
Design and Experimental Study of a Probe for Crankshaft Full-automatic Measuring Machine
Authors: Xu Meng-ting , Wang Hong-xi , Wang Ya-xiao , Tian Hui-hui
Published: May 2023

The Crankshaft Full-automatic Measuring Machine (CFMM) features high accuracy, high efficiency and complete measurement parameters, and represents the forefront of a geometric crankshaft accuracy measuring instrument. One of its core technologies is the high-precision radial following the crankshaft connecting rod journal measurement. In this paper, an independent probe design scheme combining the flexible dual-complex parallel four-bar guide mechanism and double displacement sensors based on the contact measurement method was proposed. It was suitable for the measurement of precision parts with eccentric characteristics such as crankshaft and camshaft measurement. Taking the spring as the flexible part, the probe prototype’s optimization design, processing and assembly were completed, the test device was built, and the system accuracy was calibrated under various positions and feed quantities of the probe. The results revealed that the expanded measurement uncertainty after double-sensor compensation was enhanced from 1.53 μm in single-sensor measurement to 0.44 μm, satisfying the high-precision requirements of engineering measurement accuracy and reducing the measurement cost.
The Implementation in Sweden of the General Anti-Avoidance Rule of the Anti-Tax Avoidance Directive
Authors: Kleist David
Published: May 2023

According to the Swedish government, the Swedish general anti-avoidance rule that was already in place when the Anti-Tax Avoidance Directive was adopted sufficiently implements the general anti-avoidance rule of the Anti-Tax Avoidance Directive. The implementation strategy chosen raises questions of European Union (EU) law compatibility, as there are clearly differences between them. It also raises questions concerning the extent to which EU law will affect the interpretation of the Swedish general anti-avoidance rule in the future. The purpose of this article is to discuss these questions.
Assessment of waste amounts collected through the public system of waste collection and during clean-up activities in public spaces in Poland
Authors: Waszczyłko-Miłkowska Beata , Szczepański Krystian , Szymanek Anna , Wąsik Cezary
Published: May 2023

The aim of our study was to estimate the amount of waste disposed through the public system of waste collection, as well as the amount collected during clean-up activities in public spaces in Poland. This study has been the first of its kind in Poland. We defined terminology for the public system of waste collection and public spaces. Our analyses were for the year 2021 and focused on diverse research areas. The administrative and landscape standard was used as a criterion for the selection of the units tested in field trials, by means of a questionnaire survey. 46 units were purposefully selected, and two series of surveys were carried out with respect to two research areas. During the qualitative assessment of our information sources to assess their suitability for the development of the methodology, it was necessary to apply methodological verifiers relating to mass, persons, area, and statistics. The verifiers took into account all variables influencing the quantities of waste considered in the study. The results obtained showed the lack of separate records in the municipal register for the waste assessed under the study. It was found that nearly 85% of the waste collected in the public systems of waste collection and litter in public spaces were registered as mixed (unsorted) municipal waste (Code 20 03 01) [Regulation... 2020]. It was noted that 20% of municipal waste generated outside households was left behind as litter in public spaces and posed environmental risks. For this reason, among others, it was necessary to estimate the amount of this type of waste.
The Aquatic WATSU® Therapy Program Improves the Quality of Life of an Adult Male with Autism Spectrum Disorder. A Case Report
Authors: Tufekcioglu Ertan , Arslan Duran , Konukman Ferman , Zagorski Tomasz , Batti Turki Al , Filiz Bijen , Sulaimani Mona F. , Keating Ingrid Eichberg , Erzeybek Mustafa Said , Yilmaz Elif Burcu
Published: May 2023

The purpose of this single case study was to investigate the effects of the WATSU training program (WTP) on 21 years old male with an Autism Spectrum Disorder (ASD). This study used a high level of individual and structured interventions to improve the underperforming adaptive functioning areas like social and academic skills in ASD. The individualized intervention of WTP was completed in five days using critical verbal and bodily language, technical demonstration, taking turns, basic skills, and timely feedback in a social and sensory-isolated environment. The results were collected via in-training observation, semi-structured family and athletic trainer interviews to evaluate the participant’s condition before and after the WTP. The structured communication opportunities improved the sense of trust and played a prominent role in the development of the quality of life. The results indicated that WTP reduced repetitive movements, stress reactions, challenging behaviors, and improved communication skills. In addition, changing roles, positions, and transitions in WATSU training increased the participant’s resiliency in his life with more comfort. Finally, tactile-emotional quality afferents, warmth, and buoyancy of the water, altered and enriched proprioceptive and vestibular input, being safely cradled in the arms instructor were likely to be the other factors improving the underperforming areas including communication, repetitive movements, stress reactions and challenging behaviors.
Morphological growth performance and genetic parameters on Korean pine in Northeastern China
Authors: Kaviriri David Kombi , Yang Ling , Zhao Chunli , Pei Xiaona , Fan Zuoyi , Wang Jingyuan , Xu Liang , Tigabu Mulualem , You Xiangling , Li Yuhua , Liu Huan-Zhen , Zhao Xiyang
Published: April 2023

Korean pine (Pinus koraiensis) is an economically valuable species owing to its excellent timber quality and nuts useful for various purposes. But few studies have been made on growth performance, and aspects combining the genetic gain and classification method on phenotypic similarity in the selection process of superior families. Thus, the present study aimed at analyzing the genetic variation and highlight suitable morphological traits for family selection; establishing trait correlations and families’ ordination based on similarities in phenotypic characters, and selecting elite families and suitable parent trees. Full-sib families from 28 crosses established in randomized complete block design from Naozhi orchard in Northeast China were used, and 11 morphological traits were investigated. Significant differences were observed among families for all traits. The traits coefficients of variation ranged from 6.07 to 56.25 % and from 0.029 to 15.213 % in phenotype and genotypic variation, respectively. A moderate level of inherited genetic control was observed (broad sense heritability H2, varied from 0.155 to 0.438). Traits related to stem growth were highly positively correlated to each other whereas crown traits showed a weak correlation with stem traits (Pearson correlation r, ranged from -0.161 to 0.956). Based on multi-trait comprehensive analysis, we selected six elite families and six parents, which resulted in a genetic gain of 5.6 %, 16.9 %, and 36.4 % in tree height, diameter at breast height, and volume, respectively. These results make a theoretical basis for selecting excellent families and establish orchards of Korean pine from improved seeds.
PENGARUH LATIHAN PLYOMETRIC TERHADAP KEKUATAN OTOT TUNGKAI PADA PEMAIN BOLA VOLLY BINAAN DISPORA KOTA BANDA ACEH
Authors: Is Zulheri , Adi Rusli
Published: April 2023

Permainan bola voli merupakan permainan net beregu yang menyenangkan, menarik, dan tidak membutuhkan biaya besar dalam memainkannya. Penelitian ini bertujuan untuk mengetahui pengaruh latihan plyometric terhadap kekuatan otot tungkai pada pemain bola volly binaan diaspora Kota Banda Aceh. Metode penelitian yang digunakan adalah eksperimen dengan desain pretest-posttest control group design. Sampel penelitian terdiri dari 16 orang pemain bola volly yang dibagi menjadi dua kelompok, yaitu kelompok kontrol dan kelompok perlakuan. Kelompok perlakuan diberi latihan plyometric selama 6 minggu, sementara kelompok kontrol tidak diberi latihan plyometric. Hasil penelitian menunjukkan bahwa terdapat perbedaan yang signifikan antara Pretes dan Postes dalam hal peningkatan kekuatan otot tungkai. Postes mengalami peningkatan kekuatan otot tungkai yang signifikan setelah latihan plyometric. Oleh karena itu, dapat disimpulkan bahwa latihan plyometric memiliki pengaruh yang signifikan terhadap peningkatan kekuatan otot tungkai pada pemain bola volly binaan diaspora Kota Banda Aceh.