bluuebunny/crossref_metadata_2025 huggingface dataset:
A COMPARATIVE STUDY OF LIPID PROFILE IN CHRONIC ALCOHOLICS AND NON ALCOHOLICS IN TERTIARY HOSPITAL
Authors: Harisimha Godha , Shankar Kumar Talikota , Kumar Vijaya
Published: February 2022

BACKGROUND: Alcoholism is a signicant threat to public health in developed and developing countries. Over the last 30-40 years, alcohol
consumption has increased in quantity and frequency. Alcohol use predisposes subjects to changes in lipid prole associated with coronary risk.
AIM:
1] To study lipid prole in chronic alcoholics by measuring serum total cholesterol triglycerides, HDL, LDLand VLDL.
2]To compare lipid prole changes in chronic alcoholics and non-alcoholics
MATERIALS AND METHODS: A Hospital-based cross-sectional study was conducted with patients attending the General Medicine
department in Santhiram medical college and general hospital, of which 30 alcoholic and 30 non-alcoholic were taken into the present study.
RESULTS: There was a signicant rise in TC, TGL, HDL, LDL and VLDL of chronic alcoholics compared with non-alcoholics with p-value
0.001, <0.001, 0.004, 0.290, <0.001, respectively. Lipid prole was compared among moderate and heavy drinkers and found increased levels of
TC, TGL, LDL& VLDL with p-value <0.001, 0.001, 0.002 & 0.001 respectively in heavy drinkers. There is a decrease in HDLcholesterol among
heavy drinkers compared with moderate drinkers, p-value 0.011, which is signicant. But remains elevated compared to non-alcoholics.
CONCLUSION: This study shows that alcohol intake increases lipid parameters. Moderate alcohol intake increases HDL cholesterol, whereas
heavy alcohol consumption increases TC, TGL, LDL& VLDLand decreases HDL.
OMICRON - IS IT REALLY A VARIANT OF CONCERN?
Authors: Manubhai Raval Darshan Kumar , Mallik Shashwat , Khan Shahin
Published: February 2022

Omicron is the newest variant of concern of the SARS-CoV-2 which has spread to over 75 countries across the globe and has displayed increased
transmissibility as evident by the rapid increase in number of cases. This variant was rst reported in South Africa, and later spread to Europe and
India by international travel, but now signicant community transmission is underway. While the hospitalization rate is lower overall, there is an
increase in hospitalization rate seen in pediatric patients with Omicron as compared to the previous strains. The severity of disease caused by this
variant is still unclear as South Africa reports decreased hospitalization and mortality while India reports a spike in the case fatality rate. The
vaccine efcacy has also decreased in preventing infection, but it might still offer signicant protection against severe disease, and individuals
taking a booster dose remain as protected as against the other strains. While India has fully vaccinated 40.9 % of its total population, only 26.5 % of
the population has taken both the doses in South Africa. We compared the most vaccinated province and the least vaccinated province of South
Africa and the data supported the belief that vaccination did not protect people from contracting the Omicron infection. A comparison between
South Africa and India, a country where Omicron is starting to gain a stronghold, is also done and the early data shows a higher increase in the
number of deaths in India after the introduction of the newest variant.
3kW Power Supply Design with Easy Manufacturability for 48 V Bus Power Architecture
Authors: Nabih Ahmed , Li Qiang , Lee Fred
Published: February 2022

The increase of power requirements per server rack, especially in the 48V bus architecture is demanding the increase of rated power and power density per power supply to fit as many power supplies in the server rack power shelf as possible. Due to the trade-off between fabrication cost and efficiency (running cost) of the power supply, the design of efficient but yet less labor-intensive power supply is important. This paper discusses methods to design DC-DC unit of the 3kW power supply for the 48V architecture with easier manufacturability and lower cost. Prototype for 400V/48V 3kW 1MHz is demonstrated.
HIGHLY MULTIPLICATIVE SERIES
Authors: Pandey Vishal
Published: February 2022

In the Fibonacci series we have two numbers by adding
them we get a series consisting of even and odd numbers in this it
goes up to infinity we can track any n
th number by the Binet’s formula.
I have just thought of the multiplication of the first two terms and
continued till where I can go, it means that the first two terms in the
form (a, b) we will continue the multiplication as we do the addition
in the Fibonacci series. As a result we will get the big integers from
the 7th term approximately which is obvious by multiplying to its
previous one it will come to an a very big integer which cannot be
accountable by some range. If we do the multiplication the first two
terms will be the same however from the third term it can be written
as the power of that integers in which the powers will be following
the Fibonacci series in this we can also find the n
th term for the
multiplicative series. Here the first two terms will in the same order
as it will be given to find the series by changing the order it will
violates the rule of restricted term. The meaning of the restricted
here is that the order of (a, b) will be the same throughout the
calculation of whole series we cannot alter that if we do so them it
will not be more restricted term. So there are two concept in the
multiplicative series restricted and non-restricted series. If the (a,
b) is there and the operation is going on then it can be said as the
restricted series if it is given (a, b) and asked for the (b, a) series
then it is said as non-restricted series. I have considered 4 possible
criteria to check the pairing of the variables (a, b). We will get to
know about the series and also the n
th term value of that series for
all possible solutions
Sparsity-aware 3D ToF Sensing
Authors: Lopez Paredes Alvaro , Loffeld Otmar , Heredia Conde Miguel
Published: February 2022

In this work, several ToF sensing schemes which tackle
the challenge of obtaining high angular resolution and long ranges
in nearly real-time, with relatively simple implementation and low
associated computational load, are proposed. Sliced Orthogonal
Matching Pursuit (OMP) divides the spatial domain in a number
of partitions which ensure an efficient projection of the scene by
optimizing the inter-column coherence of the sensing matrices. The
signals are preliminarily localized within the partitions and OMP is
then applied to recover depth and amplitude in a refined spatial
domain. The preliminary set of measurements reduces the effective
domain of the signal, lowers the processing times, and improves
the sensing accuracy. Several methodologies are described for the
construction of the sensing matrices, such as Low-Density Parity-Check codes via Progressive Edge Growth (LDPC-PEG),
and random permutations of (0,1)-binary columns generated as combinations without repetition of a fixed number of non?zero elements for each column. Furthermore, we extend the previous schemes accounting for the raising and falling edges
in order to avoid any possible coincidence which may degrade the coherence. Then, the upper super-resolution limit is
studied accounting for the Instrument Response Function (IRF) of the ToF sensor. Zoned APEG extends the applicability
of Adaptive Progressive Edge Algorithm (APEG) to more practical illumination systems by considering several groups of
signals, arising from different areas of the sensor array, during the adaptation of the sensing matrices. The signals are
then individually retrieved for each pixel via OMP over the identified joint signal support.
An Eight-Channel Switching-Linear Hybrid Dynamic Regulator with Dual-Supply LDOs for Thermo-Optic Tuning
Authors: Zhang Siyuan , Wang Xingze , tan min
Published: February 2022

A novel switching-linear hybrid dynamic regulator architecture with dual-supply low dropout regulators (LDOs) is presented in this paper. This architecture leverages the intrinsic dual supplies to extend the operating range of the LDOs. Furthermore, it increases the thermo-optic tuning efficiency by reducing the LDO dropout voltage through dynamic supply modulation. This architecture is suitable for large-scale thermooptic tuning in silicon photonics. The efficiency improvement is particularly effective when tracking signals of several adjacent channels are close to each other, e.g., wavelength tuning of a microring array. The principle of this architecture is general and can be implemented using different switching converters and LDOs. A specific design with extensive post-layout simulation results is used to verify the effectiveness of our architecture. Implemented in a 130 nm CMOS process, this design can simultaneously regulate eight output channels with an output swing of 0.8 Vpp. Its peak efficiency when driving 100 ohms loads is 92% at 1 V output, and the dynamic efficiency is around 86% when tracking 50 kHz sinusoidal signals. To the best of our knowledge, this is the first time that dynamic supply modulation has been applied to the thermo-optic tuning of silicon photonic devices.
Complexity Leadership: On time, on budget.
Authors: Biggadike Chris , Pei Eujin , Evans Richard
Published: February 2022

A discursive piece aimed at practitioners in Engineering Management. On the subject of Complexity Leadership and KPIs, this short article presents three models which expand on the work of Uhl-Bien and Marion (2007) by focusing on Administrative, Enabling and Adaptive Leaderships for managing complexity.
FEM_2D: A Rust Package for 2D Finite Element Method Computations with Extensive Support for hp-refinement
Authors: Corrado Jeremiah , Harmon Jake , Notaros Branislav , Ilic Milan M.
Published: February 2022

FEM_2D is an open-source Finite Element Method library implemented in Rust. This MetaPaper describes some of the libraries basic functionality, as well as its unique contributions to the FEM research community. This package exhibits a powerful *hp*-refinement API with anisotropic refinements and no constraints on mesh irregularity. It also leverages Rust's Trait-Based Genericism to provide straightforward application to many problem domains. This library has been featured in some recent research in Computational Electromagnetics (see references), depicting the validity of the underlying methodology. FEM_2D has been made available as an open-source library with the intention of providing additional explanatory value to the existing related research, as well as to facilitate the expansion of this research area
Deep Reinforcement Learning in Human Activity Recognition: A Survey
Authors: Nikpour Bahareh
Published: February 2022

Human activity recognition is a popular research field in computer vision that has already been widely studied. However, it is still an active research field since it plays an important role in many current and emerging real world intelligent systems, like visual surveillance and human-computer interaction. Deep Reinforcement Learning (DRL) has recently been employed to address the activity recognition problem with various purposes, such as finding attention in video data or obtaining the best network structure. DRL-based human activity recognition has only been around for a short time, and it is a challenging, novel field[ of study. Therefore, to facilitate further research in this field, we have constructed a comprehensive survey on activity recognition methods that incorporate deep reinforcement learning. Towards the end of this survey, we summarize key challenges and open problems in this area that can be addressed by researchers in the future.
Efficient Hierarchical Storage Management Framework Empowered By Reinforcement Learning
Authors: Zhang Tianru , Hellander Andreas , Toor Salman
Published: February 2022

With the rapid development of big data and cloud computing, data management has become increasingly challenging. Over the years, a number of frameworks for data management and storage with various characteristics and features have become available. Most of these are highly efficient, but ultimately create data silos. It becomes difficult to move and work coherently with data as new requirements emerge as no single framework can efficiently fulfill the data management needs of diverse applications. A possible solution is to design smart and efficient hierarchical (multi-tier) storage solutions. A hierarchical storage system (HSS) is a meta solution that consists of different storage frameworks organized as a jointly constructed large storage pool. It brings a number of benefits including better utilization of the storage, cost-efficiency, and use of different features provided by the underlying storage frameworks. In order to maximize the gains of hierarchical storage solutions, it is important that they include intelligent and autonomous mechanisms for data management grounded in the features of the different underlying frameworks. These decisions should be made according to the characteristics of the dataset, tier status, and access patterns. These are highly dynamic parameters and defining a policy based on the mentioned parameters is a non-trivial task. This paper presents an open-source hierarchical storage framework with a dynamic migration policy based on reinforcement learning (RL). We present a mathematical model, a software architecture, and an implementation based on both simulations and a live cloud-based environment. We compare the proposed RL-based strategy to a baseline of three rule-based policies, showing that the RL-based policy achieves significantly higher efficiency and optimal data distribution in different scenarios compared to the dynamic rule-based policies.
Compact Modeling and SPICE Simulation of GCMO-Based Resistive Switching Devices
Authors: Miranda Enrique , Lähteenlahti Ville , Huhtinen Hannu , Schulman Alejandro , Paturi Petriina
Published: February 2022

This work reports a compact behavioral
model for the hysteretic conduction characteristics of Al/Gd0.1Ca0.9MnO3(GCMO)/Au
resistive switching devices suitable for SPICE simulations. The devices are
nonvolatile, forming-less, compliance-free, and self-rectifying multistate
memristive structures which makes them of maximum interest for neuromorphic
computing and memory applications. The proposed model relies on two coupled
equations, one for the electron transport and a second one for the vacancy
displacement. The proposed model considers a novel approach for solving the internal state of
the device based on the so-called generalized quasi-static hysteron whose
application can be extended to other structures and dynamics in addition to the
ones discussed here.
A Survey on Intelligent Reflecting Surfaces: Wireless Communication Perspective
Authors: Hassouna Saber
Published: February 2022

Using intelligent reflecting surfaces (IRSs) to improve the coverage and the data rate of future wireless networks is a viable option. These surfaces are constituted of a significant number of passive and nearly passive components that interact with incident signals in a smart way, such as by reflecting them, to increase the wireless system's performance as a result of which the notion of a smart radio environment comes to fruition. In this survey we supply a study review of IRS-assisted wireless communication starting with the principles of IRS which include the hardware architecture, the control mechanisms, and the discussions of previously held views about the channel model and pathloss, then the performance analysis considering different performance parameters, analytical approaches and metrics are presented to describe the IRS-assisted wireless network performance improvements. Despite its enormous promise, IRS confronts new hurdles in integrating into wireless networks efficiently due to its passive nature. Consequently, the channel estimation for, both full and nearly passive IRS and the IRS deployments are compared under various wireless communication models and for single and multi-users. Lastly, we propose the challenges and potential future study areas for the IRS aided wireless communication systems.
Maxwell Equations Derived from Coulomb’ Law Mathematically vs. Maxwell-type Gravity Derived from Newton’s Law Mathematically
Authors: peng hui
Published: February 2022

A Universal Mathematical Field Theory (UMFT) is established and states that the combination of the operations of both gradient and divergence of vector fields, such as electric field and velocity field, create the curl of an axial vector field, such as magnetic field. Utilizing UMFT, Extended-Maxwell equations and the equation of Lorentz force are derived from the combination of Coulomb’s law and velocity of source mathematically, and new effects are predicted. For uniformly moving source, Extended-Maxwell equations reduce to Maxwell equations. This derivation mathematically explains how a moving electric charge creates magnetic field, and shows that there is no magnetic monopole charge. The duality between the Newton’s law and the Coulomb’s law leads us to derive Maxwell-type gravitational equations and Lorentz-type gravitational force by combining UMFT, the Newton’s law and velocity of gravitational source, denoted as Gravito-electromagnetic, which is dual of Electromagnetics. The benefits of the duality are that the effects and phenomena of Electromagnetics may be directly converted to that of gravity. The Gravito-Electromagnetics are employed to study the accelerating expansion of the universe, rotation curve, virial theorem, and gravitation radiation.
The role of the modern library institution in the information support of public authorities in the context of information space development
Authors: Medvedeva Valentina
Published: February 2022

The peculiarities of the information and analytical work of the library institution in the information support of the state authorities in the conditions of informatization of the society are investigated in the article.
Attention is drawn to a promising form of work for a library institution, such as a model of information-analytical partnership with the expansion of the library institution's activity as a center of access to any information. Under the expansion of activities is primarily information participation of the library institution in state-building democratic processes, support of public awareness on important socially important issues, provision of information to public authorities, which facilitates administrative decisions.
Important for the study of these processes were various aspects of the activities of library institutions with a developed infrastructure for the formation and analytical and synthetic processing of document flows for information support of government structures.
Special attention is paid to the production and distribution of information products and services, including legal ones, facilitating the establishment of cooperation between public authorities and society. To meet their information needs, library institutions are raised to the level of equal partners.
The importance of the role of information and analytical units of the Vernadsky National Library of Ukraine (VNLU). Based on the experience of cooperation of the analytical units of the VNLU with the state authorities, it is possible to speak about the expediency of involving them in the effective development of the information society.
Such experience is with the Service of Information and Analytical Support of State Authorities (SIAS) of VNLU. As a result of its operational cooperation with public authorities, numerous informational-analytical products have been obtained, which have received a significant appreciation of the customers.
Evaluasi Usability Website Dinas Tenaga Kerja Dan Trasmigrasi Kabupaten XYZ Menggunakan Metode Think-Aloud
Authors: Ashshofiah Putri Ayu Tri , Natasia Sri Rahayu , Hartanti Yulistiana Eka , Muhammad Jamil
Published: February 2022

Dinas Tenaga Kerja dan Transmigrasi Kabupaten XYZ mengembangkan sistem informasi berbasis website yang diharapkan mampu meningkatkan pelayanan kepada seluruh masyarakat Kabupaten XYZ. Penelitian ini bertujuan untuk mengetahui evaluasi website Dinas Tenaga Kerja dan Transmigrasi Kabupaten XYZ sehingga dapat diperbaiki guna terbentuknya website yang dapat menyajikan informasi yang efisien dan mudah dipahami. Penelitian ini menggunakan metode Think aloud dengan memberikan 10 task scenario pengujian website kepada 8 orang responden. Pengambilan data responden berdasarkan perilaku serta ucapan yang di tunjukkan oleh responden pada saat melaksanakan pengujian usability. Dari hasil pengujian task scenario terdapat sebanyak 62,5%  responden yang dapat mengerjakan task 10 dan sebanyak 87,5% responden yang dapat mengerjakan task 7. Serta terdapat sebanyak 6 respon negatif. Selain itu, responden juga di minta untuk memberikan saran perbaikan (jika ada). Rekomendasi perbaikan website Dinas Tenaga Kerja dan Transmigrasi  Kabupaten XYZ yaitu perbaikan pada header dan footer, menambahkan fitur search , merapikan font dan text dan melakukan perbaikan button agar lebih di jangkau user serta membuat tampilan folder galeri menjadi lebih menarik
Analisis Fuzzy Sugeno Dalam Menentukan Pemilihan Motor Honda
Authors: Saleh Khairul , Siregar Helmi Fauzi , Sitorus Zunaida
Published: February 2022

Motorcycles are two-wheeled vehicles. Honda is one of the best selling motorcycle brands in Indonesia. Honda is a Japanese company that has been very tested in Indonesia. Honda also has many types, because of the many types of Honda motorcycles, a decision support system (DSS) with the fuzzy Sugeno method is needed in overcoming the selection of Honda motorcycles. At the same time to compare previous research that has been done with the Mamdani method in determining the selection of the Honda motorcycle.
HUBUNGAN ANTARA KECERDASAN EMOSIONAL DENGAN KETERAMPILAN BERKOMUNIKASI PADA SISWA KELAS XI SMA NEGERI 6 MATARAM TAHUN PELAJARAN 2021/2022
Authors: Delta Septya Rahayu dan Nurul Iman
Published: February 2022

Emosional adalah kecakapan utama, suatu kemampuan didalam memantau perasaaan diri sendiri dan perasaan orang lain serta menggunakan informasi untuk mengarahkan pikiran dan tindakan. Kecerdasan emosional adalah merupakan kemampuan untuk memantau perasaan diri sendiri dan orang lain agar mampu mengarahkna pikiran dan tindakan sehingga menghasilkan perilaku yang baik. Berkomunikasi merupakan sarana untuk berinteraksi antara individu satu dengan individu lainnya. Keberhasilan dalam berkomunikasi sangat ditentukan oleh kemampuan berkomunikasi seseorang menjadi bagus dan bermakna, maka untuk mengasah kemampuan tersebut dapat melalui proses pembelajaran.rumusan masalah dalam penelitian ini adalah “Apakah ada Hubungan Antara Kecerdasan Emosional Dengan Keterampilan Berkomunikasi Siswa di SMA Negeri 6 Mataram Tahun Pelajaran 2021/2022?”. Tujuan dalam penelitian ini adalah “Untuk mengetahui Hubungan Antara Kecerdasan Emosional dengan Keterampilan Berkomunikasi pada Siswa SMA Negeri 6 Mataram Tahun Pelajaran 2021/2022”. Populasi dalam penelitian ini ada 2 kelas XI IIS 1 dan XI IIS 2 SMA Negeri 6 Mataram yang berjumlah 378 siswa, sampel yang digunakan berjumlah 69 siswa. Tehnik pengambilan sampel menggunakan purposive sampling Dalam penelitian ini metode pengumpulan data yang digunakan adalah metode angket sebagai motode pokok, observasi, dokumentasi, dan wawancara sebagai metode pelengkap. Analisis data menggunakan rumus product moment. Bedasarkan hasil analisis data dengan taraf signifikan 5% maka diperoleh hasil penelitian yaitu nilai rxy lebih besar dari nilai r product moment (rxy 0.992 > r product moment 0,224). Kenyataan ini menunjukkan bahwa nilai rxy yang diperoleh dari hasil analisis data dapat disimpulkan bahwa: Ada Hubungan Antara Kecerdasan Emosional dengan Keterampilan Berkomunikasi pada Siswa XI SMA Negeri 6 Mataram Tahun Pelajaran 2021/202, dengan demikian dalam penelitian ini dinyatakan Signifikan.
Analysis of Total Factor Productivity of Power and Energy Sector in Bangladesh: A Study on CSE Listed Companies
Authors: Hossain Mohammad Emdad , Azam Md. Kazi Golam , Mamun Abdullah Mohammad Ahshanul , Ahsan Syed Mohammad Hasib
Published: February 2022

Data envelopment analysis (DEA) is one of the most prominent productivity analysis model which measures overall performance of a firm based on specified input and output factors considering time series data. Power and energy sector of Bangladesh are controlled by both state owned and institutional ownership. The aim of the study is to assess Productivity performance of privately owned power and energy sector of Bangladesh by considering salaries and operating expenditure as input factors and revenue profit and total asset are output factors of eleven companies listed under Chittagong Stock Exchange (CSE) of Bangladesh. Malmquist output oriented productivity analysis was used to examine six years’ time series data, finds that total factor productivity of power and energy sector under private ownership is increased by 2.5% indicating firms overall efficiency is increased within sample period of time. The limitation of study is that long term time series data and state owned Organization are not considered in this study. Further research may be carried out considering both state owned and privatized institutions as well as more input-output variables may be used to examine the effectiveness of this sector on the whole economy.
Comparação da motivação para a prática esportiva de jovens atletas de atletismo em razão do sexo, tempo de prática e grupo de competição
Authors: Silva Giovana Correia da , Refundini Luciana Boligon , Oliveira Daniel Vicentini de , Marroni Paula Caroline Teixeira , Nascimento Júnior José Roberto Andrade do , Anversa Ana Luiza Barbosa
Published: February 2022

OBJETIVO: Comparar a motivação para a prática esportiva de jovens atletas do atletismo em função do sexo, tempo de prática e grupo de competição. MÉTODOS: Estudo transversal, realizado com 30 alunos/atletas, sendo 19 do sexo masculino e 11 do sexo feminino, das categorias de provas de pista e campo, entre 9 e 17 anos. Foi utilizada a Escala de Motivação para o Esporte II (SMS II). Para análise dos dados foi utilizado os testes Shapiro-Wilk, Kruskal-Wallis e U de Mann-Whitney (p<0,05).RESULTADOS: Os resultados demonstraram que os atletas são mais motivados por fatores intrínsecos (Md=7,00). Em relação ao sexo, as atletas femininas tiveram uma diferença significativa na regulação externa comparada aos atletas masculinos (p=0,04) e os atletas de provas de campo demonstraram mais motivados extrinsecamente do que os atletas das provas de pista (p=0,03).CONCLUSÃO: Concluiu-se que o sexo e o tipo de prova são fatores intervenientes na motivação extrínseca e desmotivação dos atletas de atletismo.
Pengaruh Strategi Daily Chem Quiz Terhadap Motivasi Dan Hasil Belajar Siswa SMAN 1 Wiwirano Pada Materi Asam Basa
Authors: Angga Putra Upi Heri , Tewa Yuniati , Marhadi Muhammad Ali
Published: February 2022

Penelitian ini bertujuan untuk mengetahui : 1) Untuk mengetahui hasil belajar siswa pada kelas eksperimen di SMAN 1 Wiwirano pada materi asam basa. (2) Untuk mengetahui hasil belajar siswa pada kelas kontrol di SMAN 1 Wiwirano pada materi asam basa. (3) Untuk mengetahui pengaruh strategi Daily Chem Quiz terhadap motivasi dan hasil belajar siswa di SMAN 1 Wiwirano pada materi asam basa. (4) Untuk mengetahui respon siswa SMAN 1 Wiwirano terhadap penerapan strategi Daily Chem Quiz pada materi asam basa. Metode penelitiannya adalah Quasi experiment merupakan eksperimen yang mempunyai unsur perlakuan, pre-test, dan post-test tetapi tidak mengambil sampel secara random. Pembandingan tergantung pada kelompok-kelompok non-ekuivalen. Metode quasi eksperiment yang digunakan adalah non equivalent control group design karena tidak mengacak kelas-kelas yang telah ada di tempat penelitian sehingga kelompok yang dibandingkan mengambil dari kelas-kelas yang telah ada. Hasil penelitian secara deskriptif dan secara inferensial menunjukan bahwa: (1) Hasil Belajar siswa SMA Negeri 1 Wiwirano pada kelas eksperimen yang diajar dengan menggunakan model pembelajaran Discovery learning dengan bantuan strategi daily chem quiz pada materi asam basa diperoleh nilai rata-rata 67,20.   (2) Hasil Belajar siswa SMA Negeri 1 Wiwirano pada kelas kontrol yang diajar dengan menggunakan model pembelajaran Discovery learning pada materi asam basa diperoleh nilai rata-rata 60,00. (3) Terdapat pengaruh yang signifikan strategi daily chem quiz terhadap motivasi dan hasil belajar siswa kelas XI SMA Negeri 1 Wiwirano pada materi Asam Basa. (4) Respon siswa mengenai Strategi daily chem quiz diperoleh siswa yang memberi respon sangat baik presentase 24% dan yang memberi respon dengan kategori baik presentase 76% sehingga berdasarkan respon siswa yang diperoleh Strategi daily chem quiz dapat digunakan sebagai bantuan untuk meningkatkan motivasi dan hasil belajar kimia siswa.
Penerapan Model Pembelajaran Inkuiri Terbimbing dan Pembelajaran Langsung untuk Meningkatkan Pemahaman Konsep Siswa pada Materi Asam Basa
Authors: Rasid La , Fahyuddin Fahyuddin , Maysara Maysara
Published: February 2022

Telah dilakukan penelitian Penerapan model pembelajaran inkuiri terbimbing dan pembelajaran langsung untuk meningkatkan pemahaman konsep siswa pada materi asam basa di SMA Negeri 1 Batauga. Penelitian ini bertujuan untuk mendeskripsikan pemahaman konsep siswa melalui penerapan model pembelajaran inkuiri terbimbing dan pembelajaran langsung pada materi asam basa, untuk menganalisis peningkatan pemahaman konsep siswa melalui pembelajaran inkuiri terbimbing dan pembelajaran langung pada materi asam basa, untuk membandingkan perbedaan peningkatan pemahaman konsep materi asam basa antara kelommpok siswa yang diajarkan dengan menggunakan model pembelajaran inkuiri terbimbing dan pembelajaran langsung. Penelitian ini dilaksanakan pada semester Genap Tahun Ajaran 2019/2020. Penelitian ini merupakan penelitian kuantitatif dengan pendekatan quasi experimental atau eksperimen semu. Teknik pengumpulan data meliputi observasi, Tes dan dokumentasi. Teknik analisis data meliputi Teknik analisis deskriptif dan analisis inferensial. Hasil analisis menunjukkan bahwa pemahaman konsep siswa pada materi asam basa yang diajarkan dengan model pembelajaran inkuiri terbimbing diperoleh nilai rata-rata sebesar 70,62 sedangkan nilai rata-rata siswa yang diajarkan dengan model pembelajaran langsung diperoleh nilai sebesar 75,62. Hal ini menunjukkan bahwa pemahaman konsep siswa yang diajarkan dengan model pembelajaran langsung lebih tinggi dibandingkan dengan pembelajaran inkuiri terbimbing. Terdapat peningkatan pemahaman konsep siswa melalui pembelajaran inkuiri terbimbing dan pembelajaran langsung. Hal ini dapat dilihat dari hasil analisis uji paired sample t test antara hasil pretest dan posttest dengan nilai sig. (2-tailed). Terdapat perbedaan peningkatan pemahaman konsep siswa yang diajarklan dengan model pembelajaran inkuiri terbimbing dan pembelajaran langsung.
PENGEMBANGAN RENCANA PELAKSANAAN PEMBELAJARAN (RPP) KIMIA KURIKULUM 2013 BERBASIS PROJECT BASED LEARNING KELAS XI IPA SEMESTER 1 SMAN 3 KENDARI PADA POKOK BAHASAN HIDROKARBON
Authors: Lestari Sucy , Marhadi Muhammad Ali , Maysara Maysara
Published: February 2022

Telah dilakukan penelitian Pengembangan Rencana Pelaksanaan Pembelajaran (RPP) Kimia Kurikulum 2013 Berbasis Project Based Learning Kelas XI IPA Semester 1 SMAN 3 Kendari pada Pokok Bahasan Hidrokarbon. Penelitian ini bertujuan untuk mengetahui kualitas perangkat Rencana Pelaksanaan Pembelajaran (RPP) kimia berbasis Project Based Learning yang dikembangkan pada pokok bahasan hidrokarbon berdasarkan kurikulum 2013. Metode yang digunakan dalam penelitian ini adalah Research and Development (R&D) yang dikembangkan oleh Sivasailam Thiagarajan. Langkah-langkah yang perlu dilakukan yaitu melakukan analisis awal akhir, tugas akhir dan konsep akhir, merumuskan tujuan pembelajaran, pemilihan media, pemilihan format, rancangan awal dan tahap pengembangan. Rancangan Awal yang divalidasi oleh 3 orang penilai dengan menggunakan lembar validasi memperoleh nilai sebesar 49% dengan kategori sangat kurang maka perlu diadakan revisi. Hasil sesudah revisi menunjukkan bahwa produk RPP yang dikembangkan memperoleh nilai sebesar 90.17% tergolong dalam kategori sangat baik dan tidak perlu diadakan revisi.
ANALISIS BUTIR SOAL ULANGAN AKHIR MATA PELAJARAN KIMIA KELAS XI SEMESTER GANJIL TAHUN AJARAN 2019/2020 SMA NEGERI 2 TOMIA
Authors: Nurpila Nurpila , Rudi La , Musta Rustam
Published: February 2022

Penelitian ini bertujuan untuk mengetahui kualitas butir soal dan indikator  serta distribusi jenjang ranah kognitif Taksonomi Bloom mata pelajaran kimia kelas XI semester ganjil Tahun Ajaran 2019/2020 di SMA Negeri 2 Tomia. Objek dalam penelitian ini mencakup seluruh butir soal dan lembar jawaban siswa kelas XI di SMA Negeri 2 Tomia. Data dikumpulkan dengan teknik dokumentasi. Data penelitian yang dianalisis yaitu semua lembar jawaban siswa yang mengikuti ulangan semester ganjil mata pelajaran Kimia. Berdasarkan hasil analisis data diperoleh bahwa soal ulangan akhir semseter (UAS) mata pelajaran kimia kelas XI semester ganjil di SMA Negeri 2 Tomia seluruhnya memiliki butir soal yang valid; dengan derajat keterandalan yang tinggi dengan koefisien reliabilitas r11 = 0,73.  Tingkat kesukaran soal mata pelajaran kimia kelas XI terdapat 1 butir soal yang tergolong sangat mudah (25%), 2 butir soal tergolong mudah (75%) dan 4 butir soal yang tergolong sedang.  Daya pembeda soal soal UAS mata pelajaran kimia kelas XI terdapat 1 soal yang tergolong baik, 4 nomor tegolong cukup dan 2 nomor tergolong buruk. Butir soal UAS mata pelajaran kimia untuk kelas XI seluruhnya sesuai dengan indikator pembelajaran. Distribusi jenjang ranah kognitif butir soal terdapat 1 butir soal termasuk dalam ranah kognit C2(memahami), terdapar 3 butir soal yang termasuk dalam ranah kognitif C3 (mengaplikasikan) serta 3 soal dalam ranah kognitif C4 (menganalisis).
PENGEMBANGAN LEMBAR KEGIATAN SISWA (LKS) BERBASIS LITERASI SAINS SISWA PADA MATERI REDOKS SMAN 3 LAPANDEWA
Authors: Fandri Fandri , Maysara Maysara , Marhadi Muhammad Ali
Published: February 2022

Penelitian ini bertujuan untuk mendeskripsikan kelayakan LKS untuk mengetahui kemampuan literasi sains ditinjau dari kelayakan teoritis (kriteria isi, kebahasaan, penyajian dan kegrafikan) serta kesesuaian dengan kemampuan literasi sains dan kelayakan empiris (hasil kemampuan literasi sains dan lembar angket respon siswa). Jenis penelitian ini menggunakan metode pengembangan 4D yang hanya sampai pada tahap uji coba terbatas. Instrumen yang digunakan yaitu lembar telaah dan lembar validasi, lembar tes kemampuan literasi sains, dan lembar angket respon siswa. LKS ini diujicobakan kepada 25 orang siswa SMAN 3 Lapandewa. Hasil validasi dari LKS berbasis literasi sains ditinjau dari kriteria isi memperoleh persentase sebesar 100% dengan kategori sangat layak, kebahasaaan memperoleh persentase sebesar 93% dengan kategori sangat layak, penyajian memperoleh persentase sebesar 93% dengan kategori sangat layak, dan kegrafikan memperoleh persentase sebesar 94% dengan kategori sangat layak. Kemampuan literasi sains siswa meningkat dari rata-rata hasil tes awal sebesar 42,I2 dengan kategori tidak tuntas menjadi 86,40 dengan kategori tuntas serta lembar angket respon siswa dengan rata-rata persentase 77,80% dengan kategori layak.
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS KETERAMPILAN METAKOGNISI PADA MATERI LAJU REAKSI
Authors: Nurmiati Euis , Dahlan Dahlan , Rudi La
Published: February 2022

This research is related to the development of student worksheets (LKPD) based on  metacognition  skills  in  one  of  the  Chemistry  learning  materials,  namely  the reaction  rate.  This  material  was  chosen  because  this  material  contains metacognition  skills  as  one  of  the  aspects  that  must  be  achieved  in  Core  Competencies (KI). Metacognition skills can help students become self-regulated learners  who  are  responsible  for  their  own  learning  progress  and  adapt  their learning strategies to achieve the demands of the assignment. The importance of LKPD based on metacognition skills is developed so that students understand how the  task  is  carried  out  and  monitor  their  own  learning  progress.  Therefore,  the student worksheet contains components of metacognition skills such as planning, monitoring  (monitoring),  evaluating  (evaluating),  and  revising  (revising).  The purpose  of  this  study  was  to  develop  metacognition-based  student  worksheets (LKPD) on the material on reaction rates. The type of research being carried out by researchers is research and development using the 4-D model, namely define, design, development, and disseminate stages. The instrument used was a content assessment  /  validation  sheet.  Furthermore,  the  second  data  is  related  to  a questionnaire  related  to  the  implementation  of  the  LKPD.  The  results  of  the questionnaire are as follows: (1) LKPD media 65.45%, (2) LKPD material 71.25%, (3) LKPD language 78%, and (4) LKPD metacognition skills 77.5% with average percentage -The mean of all scores is 73.05%.
PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING TERHADAP HASIL BELAJAR KIMIA SISWA KELAS X IPA PADA MATERI POKOK LARUTAN ELEKTROLIT DAN NON ELEKTROLIT
Authors: Ayustiani Ayustiani , Haetami Aceng , Tewa Yuniati
Published: February 2022

This study aims to determine: (1) Description of students' chemistry learning outcomes on electrolyte and non-electrolyte solution materials taught using the Problem Based Learning (PBL) model and by using the direct learning model; and (2) increasing student learning outcomes (N-gain) on electrolyte and nonelectrolyte solution materials taught using the Problem Based Learning (PBL) model and by using the direct learning model. The method used in this study was a quasi-experimental design using a pretest-posttest control group design. The sample in this study were students of class X IPA1 as the experimental class who were treated using the Problem Based Learning learning model and class X IPA2 as the control class treated with the direct learning model. Based on the results of the analysis, it was found that the data were: (1) Description of Chemistry learning outcomes of students who were taught using the application of the Problem Based Learning (PBL) model obtained an average value of 63.64 for the pre-test and 76.46 for the post-test. Meanwhile, the learning outcomes of students who were taught with the direct learning model had an average pre-test of 54.43 and an average post-test score of 61.57; (2) The increase in student learning outcomes after learning using Problem Based Learning (PBL) of 0.35 (medium category) is greater than the increase in student learning outcomes in learning using the direct learning model of 0.15 (low category). This indicates that the Problem Based Learning (PBL) learning model is applied effectively to students' chemistry learning outcomes.
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD)PADA MATERI ASAM DAN BASA BERBASIS PROBLEM BASED LEARNING DI SMA NEGERI 1 NAPABALANO
Authors: Cindy Cindy , Haetami Aceng , Ratna Ratna
Published: February 2022

Telah dilakukan penelitian Pengembangan Lembar Kerja Peserta Didik (LKPD) pada materi asam dan basa berbasis problem based learning di SMA Negeri 1 Napabalano. Penelitian ini bertujuan untukmengetahui kualitas dan kelayakan dari LKPD asam basa berbasis problem based learning. Metode penelitian yang digunakan adalah R&D (Research and Development) dengan model pengembangan 4D (define, design, development and disseminate).Kualitas LKPD yang dikembangkan divalidasi oleh para ahli materi dan media sebanyak 3 orang. Kelayakan LKPD yang dikembangkan dilihat dari respon siswa sebanyak 9 orang. Hasil penelitian menunjukkan bahwa rata-rata penilaian ahli materi sebesar 80% (kategori baik) dan rata-rata penilaian ahli media sebesar 80% (kategori baik).Rata-rata penilaian dari Respon siswa kategori sangat baiksebesar 90% (uji coba skala terbatas). Berdasarkan validasi paraahli dan respon siswa maka LKPD yang dikembangkan telah valid dan layak digunakan sebagai perangkat pembelajaran dalam materi asam dan basa.
HUBUNGAN SELF-EFFICACY DENGAN KEMAMPUAN KOMUNIKASI MATEMATIS SISWA KELAS VIII SMP NEGERI 1 UEPAI
Authors: Julianta Milpan Imanuel , Lambertus Lambertus
Published: February 2022

Penelitian ini bertujuan untuk mengetahui ada atau tidaknya hubungan Self-Efficacy dengan Kemampuan Komunikasi Matematis Siswa Kelas VIII SMP Negeri 1 Uepai. Populasi dalam penelitian ini adalah seluruh kelas VIII SMP Negeri 1 Uepai yang terdistribusi dalam 5 kelas. penentuan sampel dilakukan dengan teknik proportional random sampling dengan cara memilih 12 siswa dari setiap kelas sehingga jumlah sampel dalam penelitian ini yaitu 60 sampel. Data hasil penelitian diperoleh dengan  menggunakan instrument berupa angket self-efficacy dan tes kemampuan komunikasi matematis berbentuk soal essay. Tenik analisis data menggunakan statistik deskriptif dan statistik inferensial. Hasil penelitian, diperoleh kesimpulan terdapat hubungan positif yang signifikan antara self-efficacy dengan kemampuan  komunikasi matematis ditunjukkan oleh nilai pearson correlation adalah 0,716 maka dapat disimpulkan tingkat hubungan kuat dan koefisien determinasi ( ) = 0,512 atau 51,2%. Sehingga besarnya persentase kuatnya hubungan variabel bebas self-efficacy terhadap variabel terikat  komunikasi matematis adalah sebesar 51,2%. dengan sig. (2-tailed) = 0,00 0,05.
PENGARUH MODEL PAKEM TERHADAP HASIL BELAJAR MATEMATIKA PESERTA DIDIK KELAS VII MTs NEGERI 2 KENDARI
Authors: Putri Nela Arya , Kodirun Kodirun , La Ndia La Ndia
Published: February 2022

Penelitian ini dilakukan dengan tujuan: (1) mengetahui hasil belajar matematika peserta didik dengan model PAKEM, (2) mengetahui hasil belajar matematika peserta didik yang diajar dengan model pembelajaran langsung, (3) mengetahui ada tidaknya pengaruh peserta didik yang diajar dengan menggunakan model PAKEM dengan model pembelajaran langsung pada peserta didik kelas VII MTs Negeri 2 Kendari. Populasi dalam penelitian ini adalah seluruh peserta didik kelas VII MTs Negeri 2 Kendari yang terdiri dari 7 kelas parallel dengan jumlah 181 peserta didik. Pengambilan sampel dilakukan dengan teknik purposive sampling. Teknik analisis data menggunakan statistic deskriptif dan statistic inferensial. Hasil penelitian secara deskriptif dan secara inferensial menunjukan bahwa: (1) Rata-rata hasil belajar peserta didik yang diajar dengan model PAKEM adalah67,7, (2) Rata-rata hasil belajar peserta didik yang diajar dengan model pembelajaran langsung adalah 60,06, dan (3) model PAKEM memiliki pengaruh terhadap hasil belajar matematika peserta didik pada materi persamaan dan pertidaksamaan linear satu variabel.
Actitudes de profesores de Ciencias Naturales de secundaria y media hacia la promoción escolar : un estudio en cuatro instituciones de la Secretaría de Educación del Distrito Capital
Authors: Lara Martínez Nelson Oswaldo
Published: February 2022

Es común considerar que el proceso de promoción escolar corresponde exclusivamente a la fase final del proceso evaluativo, en la cual se define si los estudiantes alcanzan o no los desempeños, desarrollan las competencias y, en general, si cumplen con los logros u objetivos planteados para cada una de las asignaturas en el año escolar que adelantan. Esta percepción, reduccionista en sí misma, precisa reconocer que la promoción escolar, como estrategia que hace frente al fracaso escolar (Rubio, 1996), requiere de un análisis profundo que permita identificar la complejidad que subyace, los factores que inciden en ella y la manera en que estos factores se articulan para que el profesor tome decisiones relacionadas con el proceso educativo de los estudiantes y establezca si deben o no promoverse. Pero ¿qué confluye en el proceso de la promoción escolar? ¿desde qué perspectivas se puede ver e interpretar dicho proceso? ¿qué determina que un profesor promueva o no a un estudiante? Para aproximarnos a las posibles respuestas, inicialmente, se debe reconocer que promover en lo escolar implica tres aspectos relevantes que se articulan entre sí, lo normativo, que se refleja en el entramado de políticas públicas educativas que se relacionan con la evaluación y la promoción escolar; lo institucional, que se manifiesta en las disposiciones expresadas en el currículo de cada colegio y, por último, la práctica educativa del profesor, que corresponde, para este caso, al acompañamiento y revisión del proceso académico adelantado por el estudiante a lo largo del año escolar y el cual se exhibe como la evidencia del alcance o no de los requisitos básicos esperados para el área y el grado en curso.
Una caracterización de personajes tipo y funcionamiento de la lírica tradicional en “Entremés la Cena de Noche Buena”
Authors: Terrazas Abel
Published: February 2022

El artículo presenta la caracterización de personajes tipo y el funcionamiento de la lírica tradicional en una obra dramática breve del siglo XVIII en la Nueva España. Se revisó la procedencia de los personajes en la tradición hispánica y su continuidad en la obra, a partir del análisis de gestos, tonos y movimientos ampliamente trabajados desde la perspectiva de la semiología de la obra dramática, por lo que ha sido posible encontrar rasgos del suelo americano refractados en este tipo de teatro. Se observó cómo la lírica tradicional se emplea en función de los personajes: para uno de ellos, particularmente, se emplea la tradición antigua, y para el resto se presentan rasgos de la tradición oral moderna.
Domínguez-Ruvalcaba, Héctor. Latinoamérica queer. Cuerpo y política queer en América Latina. 1ª ed., traducción de Sonia Verjovsky Paul, Ariel, 2019.
Authors: Álvarez Romero Ana Lourdes
Published: February 2022

En Latinoamérica queer. Cuerpo y política queer en América Latina, Héctor Domínguez-Ruvalcaba ofrece un trayecto de los estudios queer latinoamericanos. A lo largo de cuatro capítulos, el autor sistematiza los principales aportes de dichos estudios
Analisis Kandungan Senyawa Bioaktif, Nutrisi dan Aktivitas Antioksidan pada Minuman Ekstrak Beras Hitam
Authors: Fitriyah Dina , Ayu Dessya Putri , Puspita Surya Dewi , Yuanta Yohan , Ubaidillah Mohammad
Published: February 2022

Black rice contains high bioactive compounds that have antioxidant activity so that it has the potential as a source of functional food that can help to overcome various health problems. Black rice extract has high potential to be developed into an antioxidant beverage. Research on the content of bioactive compounds, antioxidant activity, and nutrients in black rice extract beverages has not been widely studied in Indonesia. The objective of this study was to determine the content of bioactive compounds, activity, and nutrients of black rice extract. Four types of commercial black rice grains were extracted using methanol as comparison (without treatment) and using  water with a temperature of 90°C for 15 and 25 minutes, with the ratio of water: rice powder (20, 25 and 30 ml/ g). The black rice extracts were tested for total phenolic compound, antioxidant activity, protein, and iron content. The highest total phenolic content, flavonoids, and antioxidant activity of black rice extract beverages were 4.54 mg GAE/g (water ratio: rice powder 20 ml/g, 15 minutes), 14.51 mg QE/g (water ratio: rice powder 20 ml/g, 15 minutes), and 73.44% (water ratio: rice powder 30 ml/g, 15 minutes). The total protein and iron content of extract black rice beverage was 0.3115- 0.3620% and 0.0100- 0.0123%, respectively. The presence of high content of bioactive compounds, protein, iron, and antioxidant activity in black rice extract with a processing time of 15 and 25 minutes at 90°C, and the ratio of water: rice powder (20, 25, 30 ml/g) indicates that the processing conditions can provide a reference in producing black rice extract beverages which are rich in bioactive compounds, antioxidants, and nutrients. The presence of iron in brown rice extract may help overcome iron deficiency.