bluuebunny/crossref_metadata_2025 huggingface dataset:
Eficiência e uniformidade de distribuição de água em batata-doce irrigado por aspersão no sul tocantinense
Authors: Augusta da Silva Lohana , Oliveira Filho Jair da Costa , Ferreira Júnior Osvaldo  José , Leite Olavo da Costa , Lopes Danilo Alves Porto da Silva , Aguiar Gekson Ribeiro , Pereira Fernanda Fonseca Pereira
Published: March 2021

Com o objetivo avaliar a eficiência e a uniformidade de distribuição e a necessidade de quando e quanto irrigar através do sistema de aspersão convencional em uma área de batata-doce no munícipio de Gurupi - TO, a área entre quatro aspersores avaliada foi dividida em subáreas quadradas de aproximadamente 3m x 3m e coletores foram instalados no centro de cada subárea, de forma que a lâmina coletada representasse a sua precipitação. Após a montagem dos coletores, o sistema de irrigação foi ligado em diferentes períodos de horários e os volumes coletados foram medidos. A uniformidade de aplicação de água foi estimada através do Coeficiente de Uniformidade de Christiansen, Coeficiente de Uniformidade de Distribuição e Coeficiente de Uniformidade Estatística, além desses foram calculadas a lâminas aplicadas medida e coletas, perdas do sistema, eficiência de aplicação e o manejo de quando e quanto irrigar. Com base nos valores encontrados pode-se concluir que o projeto de irrigação avaliado apresentou uma uniformidade inaceitável a ruim de aplicação de água, a eficiência de aplicação de água encontrada abaixo do recomendado pela literatura e o manejo recomendado quando irrigar foram nas datas 18, 22 e 28 de fevereiro e a quantidade de lâmina de água atual encontrada foi de 62,64 mm.
Forest biotechnology: economic aspects and conservation implications
Authors: Bett Larissa Amanda , Auer Celso Garcia , Karp Susan Grace , Maranho Leila Teresinha
Published: March 2021

The importance of forest ecosystems for ecological balance and as a reservoir of genetic heritage and biodiversity is evident, the need for conservation is further exalted by the great anthropic pressure suffered by these ecosystems due to the increasing demand of the forest sector. The possibility of using biotechnological practices to combine conservation with sustainable economic development emerges as a promising alternative for the recovery and use of forest species, especially those threatened with extinction. The aims of the article is to demonstrate the main aspects of Forest Biotechnology with regard to conservation and the continuity of the supply of the demand of the economic sector. The central role of wood in economic development has led to the intense exploitation of forest ecosystems, which has resulted in the loss of biodiversity and reduced capacity to meet the demands of the sector. The tools of forest biotechnology, when employed in the optimization of conservation, allow a compatibilization with commercial production, acting as instruments of sustainable development. Forestry Biotechnology acts as an instrument to reconcile conservation with economic development, including forests at the heart of a strategy for a sustainable future.
Trichoderma como promotor de crescimento de mudas de eucaliptos
Authors: Chagas Jr Aloisio Freitas , Gomes Flávia Luane , Souza Manuella Costa , Martins Albert Lennon Lima , Oliveira Rodrigo Silva de , Giongo Marcos , Chagas Lillian França Borges
Published: March 2021

O estudo foi realizado com o objetivo de avaliar o efeito de isolados de Trichoderma no crescimento inicial de Eucalyptus brassiana e Eucalyptus urophylla em condições de casa de vegetação. Foram utilizados cinco isolados de Trichoderma na concentração aproximada de 1x 109 de conídios por grama de arroz colonizado, misturados ao substrato, utilizando-se tubetes com capacidade de 50 cm3. As espécies de E. brassiana e E. urophylla foram avaliadas quanto à altura (H), comprimento de raiz (CR), diâmetro (DC), massa seca da parte aérea (MSPA), da raiz (MSR) e total (MST). Avaliou-se também a eficiência relativa (ER) e Índice de Qualidade de Dickson (IQD). Todos isolados foram superiores (p<0,01) a testemunha em H e MSPA para E. urophylla, apresentando variação de 9,4 a 56,2% de incremento em relação à testemunha aos 100 dias após a semeadura (DAS). Na espécie E. brassiana os isolados UFT 203 e UFT 205 foram superiores estatisticamente a testemunha e aos demais isolados em MSPA, MST e ER aos 100 DAS. Para a espécie E. urophylla o isolado UFT 204 promoveu crescimento em H, DC, MSPA, MSR e MST, com 56,5; 13,2; 25; 26,5 e 25,3%, superior a testemunha, respectivamente. A inoculação de Trichoderma promoveu o crescimento inicial de mudas de E. urophylla e E. brassiana. Houve especificidade para as diferentes espécies de Trichoderma em relação às duas espécies vegetais, com melhor relação entre as espécies E. urophylla com T. longibrachiatum (UFT 204) e E. brassiana com T. harzianum (UFT 203).
Use of carrageenan for the reduction of deoxynivalenol contamination in wheat and barley kernels
Authors: Dal Bosco Ducatti Rafael , Anunciação Chaiani Rozo da , Sartori Vitor Cazarotto , Piva Murilo Cecato Bombardi , Comunello Lucas , Tironi Siumar Pedro
Published: March 2021

Wheat and barley are among the more important staple foods for human and animal nutrition in the World. Nevertheless, these crops constantly suffer from the Fusarium Heat Blight disease, responsible for decrease in yields and the bioaccumulation of the trichothecene deoxynivalenol in kernels. Searching for alternatives to overcome these problems, a set of 14 trials involving wheat and barley cultivars over two consecutive harvest seasons (2018-2019) were carried out in the States of Santa Catarina and Rio Grande do Sul, Brazil. The tests consisted in the use of a carrageenan-rich product (Algomel Push®) produced from the red-algae Solieria chordalis in the rates of 1.0 and 2.0 L ha-1 sprayed at the beginning of the tillering stage. Overall, the use of carrageenan decreased DON contamination up to 34.64% and 35.74% when 1.0 and 2.0 L ha-1 of carrageenan was applied in wheat and barley, respectively. An increase in yield and kernels with better bromatological aspects were also seen after the use of carrageenan. Our findings suggest that the bioactive compounds found in the product, mostly carrageenan, have the ability of eliciting the plant’s mechanisms of defence and growth, and can be considered a potential option/tool for farmers and industries to cope with the problem of food quality in their mycotoxicological and bromatological aspects.

Key-words: DON; elicitation; FHB; Fusarium graminearum; Solieria chordalis
A Novel Method for Analyzing Highly Renewable and Sector-coupled Sub-national Energy Systems–Case Study of Schleswig-Holstein
Authors: Maruf Md. Nasimul Islam
Published: March 2021

The energy transition requires integration of different energy carriers, including electricity, heat, and transport sectors. Energy modeling methods and tools are essential to provide a clear insight into the energy transition. However, the methodologies often overlook the details of small-scale energy systems. The study states an innovative approach to facilitate sub-national energy systems with 100% renewable penetration and sectoral integration. An optimization model, OSeEM-SN, is developed under the Oemof framework. The model is validated using the case study of Schleswig-Holstein. The study assumes three scenarios representing 25%, 50%, and 100% of the total available biomass potentials. OSeEM-SN reaches feasible solutions without additional offshore wind investment, indicating that they can be reserved for supplying other states’ energy demand. The annual investment cost varies between 1.02 bn – 1.44 bn €/yr for the three scenarios. The electricity generation decreases by 17%, indicating that with high biomass-based combined heat and power plants, the curtailment from other renewable plants can be decreased. Ground source heat pumps dominate the heat mix; however, their installation decreases by 28% as the biomass penetrates fully into the energy mix. The validation confirms OSeEM-SN as a beneficial tool to examine different scenarios for sub-national energy systems.
Quantum Computing Aided Machine Learning Through Quantum State Fidelity
Authors: Stein Samuel A.
Published: March 2021

Tremendous progress has been witnessed in artificial intelligence within the domain of neural network backed deep learning systems and its applications. As we approach the post Moore’s Law era, the limit of semiconductor fabrication technology along with a rapid increase in data generation rates have lead to an impending growing challenge of tackling newer and more modern machine learning problems. In parallel, quantum computing has exhibited rapid development in recent years. Due to the potential of a quantum speedup, quantum based learning applications have become an area of significant interest, in hopes that we can leverage quantum systems to solve classical problems. In this work, we propose a quantum deep learning architecture; we demonstrate our quantum neural network architecture on tasks ranging from binary and multi-class classification to generative modelling. Powered by a modified quantum differentiation function along with a hybrid quantum-classic design, our architecture encodes the data with a reduced number of qubits and generates a quantum circuit, loading it onto a quantum platform where the model learns the optimal states iteratively. We conduct intensive experiments on both the local computing environment and IBM-Q quantum platform. The evaluation results demonstrate that our architecture is able to outperform Tensorflow-Quantum by up to 12.51% and 11.71% for a comparable classic deep neural network on the task of classification trained with the same network settings. Furthermore, our GAN architecture runs the discriminator and the generator purely on quantum hardware and utilizes the swap test on qubits to calculate the values of loss functions. In comparing our quantum GAN, we note our architecture is able to achieve similar performance with 98.5% reduction on the parameter set when compared to classical GANs. With the same number of parameters, additionally, QuGAN outperforms other quantum based GANs in the literature for up to 125.0% in terms of similarity between generated distributions and original data sets.
Prediction of Natural Volatile Organic Compounds Emitted by Bamboo Groves in Urban Forests
Authors: Choi Yeji , Kim Geonwoo , Park Sujin , Kim Eunsoo , Kim Soojin
Published: March 2021

After the COVID-19 outbreak, more and more people are seeking physiological and psychological healing by visiting the forest as the time of stay-at-home became longer. NVOC, a major healing factor of forests, has several positive effects on human health, and this study researched about the NVOC characteristics of bamboo groves. The study revealed that α-pinene, 3-carene, and camphene were the most emitted, and the largest amount of NVOC was emitted in the early morning and late afternoon in bamboo groves. Furthermore, NVOC emission was found to have normal correlations with temperature and humidity, and inverse correlations with solar radiation, PAR and wind speed. A regression analysis conducted to predict the effect of microclimate factors on NVOC emissions resulted in a regression equation with 82.9% explanatory power and found that PAR, temperature, and humidity had a significant effect on NVOC emission prediction. In conclusion, this study investigated NVOC emission characteristics of bamboo groves, examined the relationship between NVOC emissions and microclimate factors and derived a prediction equation of NVOC emissions to figure out bamboo groves' forest healing effects. These results are expected to provide a basis for establishing more effective forest healing programs in bamboo groves.
Acute Myelogenous Leukemia Associated with MLL-SEPT6 Rearrangement and TRAF3, FGFR3 Mutation: A Pediatric Case Report and Review of the Literature
Authors: Chen Yao , Pan Yiming , Zhang Li , Chen Xiaojuan , Yang Wenyu , Guo Ye , Zhu Xiaofan , Chang Lixian
Published: March 2021

The MLL gene is a site of frequent rearrangement in acute leukemia with multiple fusion partners, but MLL-SEPT6 rearrangement is rare in clinical leukemia practice, and only 13 cases have been reported. We describe the case of an acute myelogenous leukemia child with MLL-SEPT6 rearrangement whose age of onset and accompanying gene mutations differs from previous reports. Considering the poor prognosis of leukemia children with MLL-SEPT6 rearrangement and the unsatisfactory results of existing treatments, the study of this case may provide new theories for diagnosis and treatment of MLL-SEPT6-associated childhood acute leukemia.
A Novel Hybrid Monte Carlo Algorithm for Sampling Path Space
Authors: Pinski Francis J.
Published: March 2021

To sample from complex, high-dimensional distributions, one may choose algorithms based on the Hybrid Monte Carlo (HMC) method. HMC-based algorithms generate nonlocal moves alleviating diffusive behavior. Here, I build on an already defined HMC framework, Hybrid Monte Carlo on Hilbert spaces [A. Beskos, F.J. Pinski, J.-M. Sanz-Serna and A.M. Stuart, Stoch. Proc. Applic. 121, 2201 - 2230 (2011); doi:10.1016/j.spa.2011.06.003] that provides finite-dimensional approximations of measures π which have density with respect to a Gaussian measure on an infinite-dimensional Hilbert (path) space. In all HMC algorithms, one has some freedom to choose the mass operator. The novel feature of the algorithm described in this article lies in the choice of this operator. This new choice defines a Markov Chain Monte Carlo (MCMC) method which is well defined on the Hilbert space itself. As before, the algorithm described herein uses an enlarged phase space Π having the target π as a marginal, together with a Hamiltonian flow that preserves Π. In the previous method, the phase space π was augmented with Brownian bridges. With the new choice for the mass operator, π is augmented with Ornstein-Uhlenbeck (OU) bridges. The covariance of Brownian bridges grows with its length, which has negative effects on the Metropolis-Hasting acceptance rate. This contrasts with the covariance of OU bridges which is independent of the path length. The ingredients of the new algorithm include the definition of the mass operator, the equations for the Hamiltonian flow, the (approximate) numerical integration of the evolution equations, and finally the Metropolis-Hastings acceptance rule. Taken together, these constitute a robust method for sampling the target distribution in an almost dimension-free manner. The behavior of this novel algorithm is demonstrated by computer experiments for a particle moving in two dimensions, between two free-energy basins separated by an entropic barrier.
TPEN Selectively Eliminates Lymphoblastic B Cells from Pediatric Acute Lymphoblastic Lleukemia Patients
Authors: Mendivil-Perez Miguel , Velez-Pardo Carlos , Quiroz-Duque Lina Maria , Restrepo-Rincon Alexandra , Valencia-Zuluaga Natalia Andrea , Jimenez-Del-Rio Marlene
Published: March 2021

B-acute lymphoblastic leukemia (B-ALL) is a hematologic disorder characterized by abnormal proliferation and accumulation of immature B-lymphoblast arrested at various differentiation stages. Despite some advances in treatment, there is still an important percentage of pediatric patients with precursor-B ALL who relapsed. Therefore, alternative therapies are needed to improve cure rates for pediatric patients. TPEN is a pro-oxidant agent capable of selectively inducing apoptosis in leukemia cells. Consequently, TPEN has been suggested as a potential agent for oxidative therapy. However, it is not yet known whether TPEN can selectively destroy leukemia cells in a more disease-like milieu e.g., bloodstream and bone marrow (BM) in vivo. In this investigation, we report for the first time that TPEN significantly induces apoptosis in CD34+/CD19+ cells from whole bone marrow de novo B-ALL (n=5) and refractory B-ALL (n=6) patients by oxidative stress (OS, n=8). We found that TPEN significantly increased not only positive cell counts for the oxidation of the stress sensor protein DJ-1 as a sign of the formation of H2O2, but also significantly increased positive cell counts for the proapoptotic protein TP53, PUMA, and CASPASE-3 as indicative of apoptosis in B-ALL cells irrespective of diagnostic status (de novo or refractory) and sex. Understanding the TPEN-induced cell death in leukemia cells provides insight into more effective therapeutic prooxidant-inducing anticancer agents.
A Conceptual Analysis Of Ancient Ecuadorian Faces Carved In Spondylus Shells
Authors: Burgos Javier , Sierra Carolina , Restrepo de León Alonso , Sotomayor Hugo
Published: March 2021

Shells, probably like no other product of nature, have played an important role in the history of mankind. The pre-Hispanic civilizations of Ibero-America also used certain type of shells profusely in their religious ceremonies, in particular, in Ecuador there were two species of main importance, the Spondylus princeps and the Spondylus calcifer broadly employed to manufacture ornaments that possess a strong symbolic, religious and social meaning and that were almost exclusively used by ruling classes. Among these ornaments, the faces carved on the Spondylus shells are little known. In the present study, we chose a total of fifteen (15) pieces from the Pastor Restrepo Lince´s archaeomalacology collection to understand the possible uses of these objects, through the interpretation of the gestures represented on the faces, their dimensions, and their geographical distribution in pre-Hispanic Ecuador. To achieve the proposed objective, we approach the present investigation from the perspective of the formal analysis of concepts, which is a mathematical theory of representation of knowledge, finding that these faces carved in Spondylus, were used daily or in special ceremonial occasions and that its use was common in all the regional cultures of ancient Ecuador, from the oldest such as Valdivia, and for more than 2000 years, indicating a long tradition of the use of Spondylus as an object of great symbolic and economic value until the arrival of the Spanish
The Use of Visualization with Pictures and Concept Mapping to Improve English Vocabulary Mastery of Pre-School Children
Authors: Aryanti Nurul , Emzir Emzir
Published: March 2021

Many studies have come to a strong conclusion that pre-school education is important in supporting children to be ready in their future academic and social development. The writer would like to find out if there is an increase in the mastery of the English vocabulary of the pre-school children through visualization with pictures and concept mapping. A combination of qualitative and quantitative study with pre-test and posttest has been conducted to find out if there is an increase in the mastery of the English vocabulary of kindergarten children of Chatya Manis after given materials using the method. 40 children were chosen to be the samples of the study. The study reveals that there is a significant difference between the average value of the test before and after learning model concept mapping activities.
Providing an Evidence Base for Tissue Sampling and Culture Interpretation in Suspected Fracture-Related Infection
Authors: Dudareva M. , Barrett L.K. , Morgenstern M. , Atkins B.L. , Brent A.J. , McNally M.A.
Published: March 2021

Update

This article was updated on July 1, 2021, because of a previous error. On page 983, a section entitled “Appendix” with a link to the data supplement was previously not included and has now been added.

An erratum has been published: J Bone Joint Surg Am. 2021 August 4;103(15):e62.

Background:

The recent consensus definition for the diagnosis of fracture-related infection (FRI) includes the identification of indistinguishable microorganisms in at least 2 surgical deep-tissue specimens as a confirmatory criterion. However, this cut-off, and the total number of specimens from a patient with suspected FRI that should be sent for microbiological testing, have not been validated. We endeavored to estimate the accuracy of different numbers of specimens and diagnostic cut-offs for microbiological testing of deep-tissue specimens in patients undergoing surgical treatment for possible FRI.

Methods:

A total of 513 surgical procedures in 385 patients with suspected FRI were included. A minimum of 2 surgical deep-tissue specimens were submitted for microbiological testing; 5 or more specimens were analyzed in 345 procedures (67%). FRI was defined by the presence of any confirmatory criteria other than microbiology. Resampling was utilized to model the sensitivity and specificity of diagnostic cut-offs for the number of surgical specimens yielding indistinguishable microorganisms and for the total number of specimens. The likelihood of detecting all clinically relevant microorganisms was also assessed.

Results:

A diagnostic cut-off of at least 2 of 5 specimens with indistinguishable microorganisms identified by culture was 68% sensitive (95% confidence interval [CI], 62% to 74%) and 87% specific (95% CI, 81% to 94%) for the diagnosis of FRI. Two out of 3 specimens were 60% sensitive (95% CI, 55% to 66%) and 92% specific (95% CI, 88% to 96%). Submitting only 3 deep-tissue specimens risked missing clinically relevant microorganisms in at least 1 in 10 cases.

Conclusions:

The present study was the first to validate microbiological criteria for the diagnosis of FRI, supporting the current confirmatory diagnostic criteria for FRI. Analysis of at least 5 deep-tissue specimens in patients with possible FRI is recommended.

Level of Evidence:

Diagnostic Level III. See Instructions for Authors for a complete description of levels of evidence.
Cost-Utility Analysis of the Ontario Fracture Screening and Prevention Program
Authors: Saunders Hailey , Sujic Rebeka , Bogoch Earl R. , Jain Ravi , Jinah Ashna , Elliot-Gibson Victoria , Mendlowitz Andrew B. , Linton Denise , Inrig Taucha , Isaranuwatchai Wanrudee , Sale Joanna E.M.
Published: March 2021

Update

This article was updated on March 15, 2022, because of a previous error. On pages 1175, 1179, and 1180, in the Abstract, Results, and Figure 3 legend, the incremental cost that had read a negative “$274” now reads a negative “$277”; this change did not affect the interpretation of the results.

An erratum has been published: J Bone Joint Surg Am. 2022 Apr 20;104(8):e34.

Background:

The Fracture Screening and Prevention Program (FSPP), a fracture liaison service (FLS), was implemented in the province of Ontario, Canada, in 2007 to prevent recurrent fragility fractures and to improve post-fracture care. The objective of this analysis was to determine the cost-effectiveness of the current model of the FSPP compared with usual care (no program) from the perspective of the universal public health-care payer (Ontario Ministry of Health and Long-Term Care [MOHLTC]), over the lifetime of older adults who presented with a fragility fracture of the proximal part of the femur, the proximal part of the humerus, or the distal part of the radius and were not taking medications to prevent or slow bone loss and reduce the risk of fracture (bone active medications).

Methods:

We developed a state-transition (Markov) model to conduct a cost-effectiveness analysis of the FSPP in comparison with usual care. The model simulated a cohort of patients with a fragility fracture starting at 71 years of age. Model parameters were obtained from published literature and from the FSPP. Quality-adjusted life-years (QALYs) and costs in 2018 Canadian dollars were predicted over a lifetime horizon using a 1.5% annual discount rate. Health outcomes included subsequent proximal femoral, vertebral, proximal humeral, and distal radial fractures. Scenario and subgroup analyses were reported.

Results:

The FSPP had lower expected costs ($277 less) and higher expected effectiveness (by 0.018 QALY) than usual care over the lifetime horizon. Ninety-four percent of the 10,000 Monte Carlo simulated incremental cost-effectiveness ratios (ICERs) demonstrated lower costs and higher effectiveness of the FSPP.

Conclusions:

The FSPP appears to be cost-effective compared with usual care over a lifetime for patients with fragility fracture. This information may help to quantify the value of the FSPP and to assist policy-makers in deciding whether to expand the FSPP to additional hospitals or to initiate similar programs where none exist.

Level of Evidence:

Economic and Decision Analysis Level II. See Instructions for Authors for a complete description of levels of evidence.
Third-Generation Minimally Invasive Chevron and Akin Osteotomies (MICA) in Hallux Valgus Surgery
Authors: Lewis Thomas L. , Ray Robbie , Miller George , Gordon David J.
Published: March 2021

Background:

There is interest in hallux valgus deformity correction using internal fixation with the minimally invasive chevron and Akin osteotomies (MICA) technique. The objective of this study was to assess the correction measured on postoperative radiographs and clinical outcomes, using validated outcome measures, at 2 years following third-generation MICA.

Methods:

This is a prospective single-surgeon case series of 333 consecutive feet that underwent MICA surgery between July 2014 and April 2018. The primary clinical outcome measures included the Manchester-Oxford Foot Questionnaire (MOXFQ), EuroQol-5 Dimensions-5 Level (EQ-5D-5L) Index, EuroQol-visual analogue scale (EQ-VAS), and a VAS for pain (VAS-pain). Secondary outcome measures included radiographic parameters and complication rates.

Results:

Preoperative and 2-year postoperative patient-reported outcome measures (PROMs) were collected for 292 feet (87.7%). At a minimum 2-year follow-up, the MOXFQ scores (mean ± standard deviation [SD]) had improved in each domain—i.e., reduced from 44.5 ± 21.0 preoperatively to 9.4 ± 15.8 postoperatively for pain (p < 0.001), from 38.7 ± 23.4 to 6.5 ± 14.6 for walking and standing (p < 0.001), and from 48.0 ± 22.3 to 6.6 ± 13.5 for social interaction (p < 0.001). The VAS-pain score improved from 31.4 ± 22.7 preoperatively to 8.4 ± 16.4 at the 2-year follow-up (p < 0.001), the 1-2 intermetatarsal angle was reduced from 15.3° ± 3.6° preoperatively to 5.7° ± 3.2° at the 2-year follow-up (p < 0.001), and the hallux valgus angle was reduced from 32.9° ± 10.2° to 8.7° ± 5.2° (p < 0.001).

Conclusions:

The third-generation MICA provided significant improvement in clinical outcome measures at the 2-year follow-up and can be successfully used for correction of a range of hallux valgus deformities with a low rate of symptomatic recurrence.

Level of Evidence:

Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Snapping Extensor Pollicis Longus Tendon Subluxation Secondary to Trapeziometacarpal Instability
Authors: Anderson Spencer R. , Harrison Lucas M. , Wimalawansa Sunishka M.
Published: March 2021

Case:

A 20-year-old woman presented with painful, snapping extensor pollicis longus (EPL) tendon subluxation and trapeziometacarpal (TMC) joint instability. Hemi–extensor carpi radialis longus (ECRL) tendon autograft stabilized the TMC joint, reconstructing the 1-2 intermetacarpal ligament. The subluxed EPL tendon was centralized over the dorsal first metacarpal by tightening the metacarpophalangeal radial sagittal band and creating a dorsal first metacarpal “neosheath” pulley using ECRL graft remnant. Postoperative rehabilitation included Spica bracing and immediate thumb interphalangeal joint exercises.

Conclusion:

The patient's pain due to EPL tendon subluxation and TMC joint instability completely resolved. Postoperative thumb range of motion and function were equivalent to the nonaffected side.
Rancang Bangun Sistem Maklumat Masjid Berbasis Android Studi Kasus Masjid Jami' Baitunnur Desa Kedungrejo Kecamatan Pakis Kabupaten Malang
Authors: Fanani Mukhammad Erif , Dwanoko Yoyok Seby
Published: March 2021

Baitunnur Mosque is one of the mosques that performs many religious activities. With the many activities, the takmir uses 2 digital clock running text to manage activity information. Mosque takmir found it difficult to change information on the digital running text clock and the public had difficulty accessing information. So an information system is designed that can facilitate takmir of the mosque in conveying information and facilitating the community in accessing information. As a result the mosque's takmir can convey information and also the public can easily access information. This system is built using the waterfall method. Based on the results of the UAT test which produced a percentage of 82%, takmir of the mosque and the community supported the existence of this information system.
PENGEMBANGAN MODUL IPA FISIKA BERBASIS ASESMEN AUTENTIK UNTUK SISWA SMP/MTs. KELAS VII
Authors: Fitriyah Ana Lailatul , Jufriadi Akhmad , Pratiwi Hestiningtyas Yuli
Published: March 2021

Diberlakukanya kurikulum 2013, menyebabkan terjadinya pergeseran penilaian dari penilaian tes yang hanya mengukur kompetensi pengetahuan menuju penilaian autentik yang mengukur aspek kognitif, afektif dan psikomotorik. Berdasarkan hasil studi pendahuluan di sekolah di Kabupaten Malang, didapatkan bahwa dalam mengevaluasi pembelajatan IPA guru masih kesulitan melaksanakan penilaian autentik secara utuh. Sehingga aspek afektif dan psikomotorik belum terlaksana secara maksimal. Hal ini dikarenakan belum tersedianya bahan ajar atau modul yang memberikan contoh lengkap untuk melaksanakan penilaian autentik. Penelitian pengembangan ini bertujuan untuk menghasilkan produk berupa modul IPA Fisika berbasis asesmen autentik untuk siswa SMP/MTs kelas VII yang teruji kelayakannya untuk pegangan guru dan siswa dalam melaksanakan pembelajaran sesuai dengan kegiatan autentik. Penelitian ini menggunakan metode Research and Development (R&D) dengan memanfaatkan modifikasi dari langkah-langkah penelitian dan pengembangan yang dikemukakan oleh Borg & Gall. Modul IPA Fisika dinyatakan sangat layak dengan rerata persentase oleh ahli materi sebesar 87% dan ahli media sebesar 85%. Hasil respon siswa dan guru terhadap modul IPA Fisika berbasis asesmen autentik secara keseluruhan dinyatakan sangat baik dengan rerata persentase sebesar 90,28% untuk siswa dan kriteria baik sebesar 77,78 % untuk guru.
ANALISIS KESALAHAN SISWA DALAM MENYELESAIKAN SOAL MATEMATIKA BERDASARKAN ANALISIS NEWMAN
Authors: Sunardiningsih Ganik Wahyuningtias , Hariyani Sri , Fayeldi Trija
Published: March 2021

Fokus penelitian ini adalah untuk menganalisis kesalahan siswa dalam menyelesaikan soal matematika berdasarkan analisis Newman. Jenis penelitian ini adalah penelitian deskriptif dengan pendekatan kualitatif. Hasil penelitian menunjukkan bahwa: 5 subjek mengalami kesalahan membaca, yaitu siswa tidak mampu memaknai arti setiap kata, istilah atau simbol dalam soal; 12 subjek mengalami kesalahan memahami, yaitu siswa tidak mampu memahami informasi yang diketahui dengan lengkap dan tidak mampu memahami apa yang ditanyakan; 8 subjek mengalami kesalahan transformasi, yaitu siswa tidak mengetahui rumus yang akan digunakan dan tidak mengetahui operasi hitung yang akan digunakan; 11 subjek mengalami kesalahan keterampilan proses, yaitu siswa tidak mengetahui prosedur atau langkah-langkah yang akan digunakan; dan 13 subjek mengalami kesalahan penulisan jawaban akhir, yaitu siswa tidak menemukan hasil akhir yang sesuai dengan langkah-langkah yang digunakan dan tidak menuliskan jawaban akhir sesuai dengan kesimpulan yang dimaksud dalam soal.
IMPLEMENTASI FUZZY LOGIC PADA PERILAKU NPC (NON PLAYER CHARACTER) DALAM TINGKAT KEPUASAN PELAYANAN PADA GAME MLIJO 2D BERBASIS MOBILE
Authors: Prastikasari Sely , Yunus Amak , Nugraha Danang Aditya
Published: March 2021

NPC (Non Player Character) merupakan karakter otonom yang sudah ditentukan rule/aturan pergerakannya oleh komputer pada sebuah game. Dalam game bertema pelayanan, NPC berperan penting pada kualitas game dan daya tarik game tersebut. Dalam Game bernama “ Mlijo”, NPC berperan sebagai konsumen dimana dibutuhkan beberapa perilaku NPC dan penerapan artificial intelligence (AI) dalam game tersebut. Penerapan fuzzy mamdani pada game Mlijo ini terdapat pada perilaku dalam kepuasan pelayanan NPC berupa mimik wajah. Hasil yang diperoleh berupa nilai dari beberapa mimik wajah NPC yaitu puas, biasa dan kecewa yang berhubungan dengan waktu NPC, kualitas barang dan harga yang ditawarkan dengan menggunakan bahasa #C pada game engine unity 2D.
PERBANDINGAN ANTARA CERTAINTY FACTOR DAN FORWARD CHAINING UNTUK MENENTUKAN PENYAKIT KOLESTEROL BERBASIS ANDROID
Authors: Sihmahfudha Ady Atna , Syahminan Syahminan , Ahsan Moh
Published: March 2021

Analisa perbandingan dua metode yang digunakan untuk menyelesaikan suatu kasus permasalahan antara lain merupakan Certainty Factor dan Forward Chaining. Certainty factor dapat gunakan dalam nilai guna memperkirakan derajat kepercayaan  seorang ahlidalam menilai suatu data. Metode ini sangat cocok dalam sistem sebagai  tolak suatu apabilamemiliki kepastia dan tidak kepasstani guna menganalisa  penyakit. Sedangkan forwour Chaining merupakan metode pencarian atau teknik pelacakan ke depan yang dimulai dengan informasi yang ada dan memadukan dalam bentuk rule untuk menghasilkan suatu kesimpulan atau tujuan. Salah satu penerapan perbandingan 2 metode ini adalah untuk menentukan penyakit kolestrol berbasis android. Maka dari itu dibuat suatu perbandingan metode certianty factor dan forward chaining Untuk Menentukan Penyakit Kolestrol Berbasis Android. Program di terapkan di dalam handphone.
PENERAPAN MODEL PEMBELAJARAN STUDENTS TEAMS ACHIEVEMENT DIVISIONS (STAD) DAN PROBLEMS BASED LEARNING (PBL) UNTUK MENINGKATKAN HASIL BELAJAR
Authors: Rusni Ermilinda , Susilo Djoko Adi , Pranyata Yuniar Ika Putri
Published: March 2021

Keberhasilan siswa dalam pembelajaran diukur dari hasil belajar siswa. Berdasarkan hasil observasi hasil belajar siswa pada materi Sistem Persamaan Linear Dua Variabel  masih rendah.  Penelitian ini bertujuan untuk mendeskripsikan penerapan model STAD dipadu model PBL yang dapat meningkatkan hasil siswa. Pendekatan yang digunakan adalah pendekatan kualitatif dengan jenis Penelitian Tindakan Kelas. Cara pengumpulan data menggunakan observasi, tes dan wawancara.  Analisis data, yaitu reduksi data, paparan data dan penyimpulan data. Mengecek keabsahan data dengan menggunakan teknik triangulasi, ketekunan pengamatan dan pengecekkan sejawat. Hasil penelitian diperoleh (1)observasi keterlaksanaan oleh guru pada siklus I dan II diperoleh 85,71% dan 97,61% dengan kategori sangat baik, sedangkan penerapan pada siswa siklus I dan II diperoleh 83,33% dan 96,42% dengan kategori sangat baik. (2)Peningkatan  ketuntasan siswa dari siklus I 66,66% dan siklus II 90%. Sehingga, penerapan model STAD dan PBL dapat meningkatkan hasil belajar siswa. Hasil tersebut dapat dicapai dengan menggunakan langkah-langkah pembelajaran sebagai berikut: 1)Persiapan; 2)Penyajian materi; 3)Orientasi siswa pada masalah; 4)Pembagian kelompok; 5)Kegiatan kelompok; 6)Membimbing penyelidikan kelompok, 7)Menyajikan dan mengembangkan hasil karya; 8)Perhitungan Skor individu; 9)Penghargaan kelompok; 10)Kesimpulan; 11)Penutup. Saran yang diberikan adalah bagi guru matematika hendaknya menggunakan model pembelajaran yang variatif.
ANALISIS BERPIKIR KRITIS MATEMATIS DALAM MENYELESAIKAN SOAL MATEMATIKA
Authors: Fitriana Ayu , Marsitin Retno , Ferdiani Rosita Dwi
Published: March 2021

Kemampuan berpikir kritis matematis adalah suatu proses mengolah informasi yang melibatkan pengetahuan, penalaran dan pembuktian matematika sehingga dapat memecahkan suatu permasalahan utamanya dalam pembelajaran matematika. Kemampuan berpikir kritis peserta didik di SMA Ma’arif NU Pandaan masih belum maksimal, hal ini ditunjukkan dengan masih ada beberapa peserta didik masih kesulitan jika diberi soal dengan tingkat yang lebih sulit dari soal yang dicontohkan. Penelitian ini bertujuan untuk mendeskripsikan kemampuan berpikir kritis matematis dalam menyelesaikan soal matematika pada peserta didik SMA Ma’arif NU Pandaan Kabupaten Pasuruan. Pendekatan yang digunakan dalam penelitian ini adalah penelitian kualitatif dengan jenis deskriptif. Penelitian ini dilaksanakan di SMA Ma’arif NU Pandaan pada semester genap tahun ajaran 2017/2018. Subjek dalam penelitian ini yaitu peserta didik kelas X MIPA 1 yang berjumlah 35 orang. Dari kelas tersebut dipilih 6 subjek dari masing-masing tingkatan kemmpuan berpikir kritis. Teknik pengumpulan data dalam penelitian ini adalah tes dan wawancara. Analisis data dilakukan berdasarkan hasil tes dan wawancara mengacu pada indikator berpikir kritis yang digunakan yaitu: klarifikasi, assesment, strategi dan taktik serta penyimpulan. Hasil penelitian menunjukkan Peserta didik dengan kemampuan berpikir kritis rendah hanya mampu memenuhi 1 sampai 2 indikator berpikir kritis. Sedangkan peserta didik degan kemampuan berpikir kritis sedang mampu memenuhi 3 indikator berpikir kritis, dan peserta didik dengan tingkat berpikir kritis tinggi dapat memenuhi semua indikator berpikir kritis. Dengan demikian, dapat disimpulkan sebanyak 68,57% peserta didik memiliki kemampuan berpikir kritis rendah, sebanyak 17,14% peserta didik memiliki kemampuan berpikir kritis sedang, dan 14,29% peseta didik memiliki kemampuan berpikir kritis tinggi.
MODEL PROBLEM BASED LEARNING DALAM PEMBELAJARAN MATEMATIKA TERHADAP KEMAMPUAN KOMUNIKASI MATEMATIS SISWA
Authors: Kurniati Oswaldin Siana , Sumadji Sumadji , Suwanti Vivi
Published: March 2021

Abstrak. Penelitian ini bertujuan untuk mengetahui adanya pengaruh model pembelajaran PBL terhadap kemampuan komunikasi matematis siswa di SMP Nasional Malang. Sampel penelitian ini dipilih menggunakan teknik purposive random sampling. Terpilih kelas VII A sebagai kelas eksperimen dan VII B sebagai kelas kontrol  yang masing-masing berjumlah 32 siswa. Jenis penelitian adalah eksperimen semu (quasi experiment) dan menggunakan metode Nonequivalent control group design. Analisis data dalam penelitian ini berupa penguji instrumen penelitian yang terdiri atas validasi istrumen dan uji reliabilitas, uji normalitas, uji homogenitas serta uji hipotesis. Pengujian hipotesis menggunakan uji Independent Sample T-Test berbantuan program SSPS. Hasil penelitian diperoleh bahwa; (1) pengujian hipotesis diperoleh nilai signifikan 0.021<0.05. (2) Rata-rata nilai kemampuan komunikasi matematis siswa  yang diberi perlakuan dengan model Problem Based Learning adalah 75.81 dan siswa yang di beri perlakuan dengan pembelajaran konvensional adalah 69.94. Kesimpulan penelitian ini terdapat pengaruh model PBL terhadap kemampuan komunikasi matematis siswa SMP Nasional Malang. Saran bagi peneliti selanjutnya mencoba memakai model lain untuk meneliti kemampuan komunikasi matematis siswa.
MODEL RECIPROCAL TEACHING TERHADAP KEMAMPUAN BERPIKIR KREATIF MATEMATIKA
Authors: Areq Agustina , Marsitin Retno , Suwanti Vivi
Published: March 2021

Abstrak: Penelitian ini bertujuan untuk mengetahui adanya pengaruh Pembelajaran Matematika Model Reciprocal Teaching Terhadap Kemampuan Berpikir Kreatif Matematika Peserta Didik Kelas VIII SMP PGRI 6 Malang. Jenis penelitian yang digunakan adalah eksperimen semu (quasi experiment). Subjek pada penelitian ini adalah peserta didik kelas VIII A sebagai kelas eksperimen sebanyak 35 peserta didik dan kelas VIII B sebagai kelas kontrol sebanyak 35 peserta didik.Teknik pengumpulan data menggunakan tes yang terdiri dari pretest dan posttest. Analisis data menggunakan uji validitas, uji reliabilitas, uji normalitas, uji homogenitas dan uji hipotesis. Pengujian hipotesis dalam penelitian ini menggunakan uji independent-Sampel T test. Hasil penelitian diperoleh bahwa nilai rata rata kemampuan berpikir kreatif peserta didik kelas eksperimen lebih baik dari kelas kontrol. Hal ini dilihat dari nilai signifikansi 0,048  0,05 dan hasil lembar kerja peserta didik setiap kelompok memperoleh nilai diatas kriteria ketuntasan minimal. Disimpulkan bahwa terdapat pengaruh pembelajaran matematika model reciprocal teaching terhadap kemampuan berpikir kreatif matematika peserta didik kelas VIII SMP PGRI 6 Malang. Disarankan untuk peneliti selanjutnya diharapkan dapat menggunakan model reciprocal teaching untuk materi yang berbeda sebagai studi perbandingan bahwa model ini sangat berpengaruh terhadap kemampuan berpikir kreatif peserta didik.
RANCANG BANGUN ALAT PENYEBAR PAKAN SECARA MAKSIMAL PADA MESIN PEMBERI MAKAN OTOMATIS IKAN LELE
Authors: Zaelani Ahmad , Nugraha Danang Aditya , Wiguna Anggri Sartika
Published: March 2021

Teknologi sistem cerdas dapat membantu meringankan pekerjaan dalam menunjang pembudidaya contohnya pembudidaya ikan lele. Dalam perawatan ikan lele perlu adanya proses pemberian pakan ikan. Sehari pemberian pakan dilakukan sebanyak 3 kali yaitu pagi, sore, malam dan penebaran pakan harus diberikan secara merata agar pertumbuhan ikan sama rata. Pada dasarnya pembudidaya ikan lele masih menggunakan cara manual dalam memberikan pakan ikan lele tersebut. Dari hasil penelitian ini membuat sistem dengan kemampuan menebarkan pakan ikan lele secara merata. Sehingga dalam perawatan ikan lele lebih mudah dan menghemat waktu pembudidaya karena pemberian pakan ikan dilakukan secara otomatis dan pertumbuhan ikan lele bisa lebih baik lagi dibandingkan dengan pemberian pakan ikan lele cara manual.
Rancang Bangun Sistem Informasi Bimbingan Konseling Di SMK Tamansiswa Mojokerto Berbasis Web Menggunakan Model Waterfall
Authors: Cahyadi Cornelia Miyastuti , Susanto Gaguk
Published: March 2021

Proses administrasi layanan bimbingan konseling di SMK Tamansiswa Mojokerto masih dikerjakan secara manual yang menyebabkan banyak poin pelanggaran siswa tidak terakumulasi dengan baik, sanksi yang diterima siswa tidak sesuai, dan beberapa surat tidak terdokumentasi dengan baik. Permasalahan lain yang dihadapi adalah saat siswa yang bermasalah tidak menyampaikan surat panggilan kepada orang tua. Hal tersebut berakibat masalah yang dihadapi siswa tidak cepat terselesaikan dengan baik. Berdasarkan permasalahan tersebut dibuat sistem bimbingan konseling dengan menggunakan model waterfall. Sistem informasi bimbingan konseling SMK Tamansiswa Mojokerto, dapat digunakan untuk mengelola proses pencatatan data pengguna yang terlibat dalam sistem informasi (siswa, wali kelas, wali murid, guru BK, pihak tata tertib, kepala sekolah), pencatatan data pelanggaran dan poin pelanggaran, pencatatan data sanksi, pencatatan data proses bimbingan konseling yang telah dilaksanakan. Di samping itu, sistem informasi ini dapat digunakan untuk mengirimkan pesan secara langsung kepada orang tua melalui WhatsApp sehingga masalah yang dihadapi siswa dapat segera terselesaikan.
PENGARUH MODEL PBL TERHADAP BERPIKIR KRITIS DITINJAU DARI KEMANDIRIAN BELAJAR SISWA
Authors: Maya Sofiana , Sholikhan Sholikhan , Sundaygara Chandra
Published: March 2021

Abstrak. Pembelajaran IPA adalah pembelajaran yang berkaitan dengan fenomena alam. Jenis penelitian merupakan penelitian kuantitatif. Tujuannya yakni (1) mengetahui perbedaan kemampuan berpikir kritis antara siswa yang belajar menggunakan PBL dengan Discovery Learning, (2) mengetahui perbedaan berpikir kritis antara yang mempunyai kemandirian belajar tinggi dan kemandirian rendah, (3) untuk mengetahui pengaruh interaksi dari model pembelajaran dan kemandirian belajar siswa. dan metode penelitian menggunakan tehnik Cluster Random Sampling. Populasi dalam penelitian ini adalah siswa kelas VII SMP Negeri 2 Malang. Sampel yang digunakan yakni kelas VII H menggunakan PBL dan kelas VII F menggunakan Discovery Learning. Analisis data penelitian ini menggunakan ANOVA dua jalur. Berdasarkan analisis data diperoleh hasil bahwa (1) tidak ada perbedaan berpikir kritis antara siswa yang menggunakan PBL dan siswa yang Discovery Learning, (2) tidak terdapat perbedaan berpikir kritis antara siswa yang mempunyai kemandirian belajar tinggi dan kemandirian rendah, (3) tidak ada interaksi antara model PBL dan kemandirian belajar siswa terhadap berpikir kritis siswa.

                               

Kata kunci: PBL, Berpikir Kritis, Kemandirian belajar
IMPLEMENTASI MODEL INKUIRI TERBIMBING BERBANTUAN MIND MAPPING UNTUK MENINGKATKAN MOTIVASI DAN PRESTASI BELAJAR
Authors: Fransiska Manehat Odilla , Jufriadi Akhmad , Yuli Pratiwi Hestiningtyas
Published: March 2021

Penelitian ini bertujuan untuk meningkatkan motivasi dan prestasi belajar siswa kelas XI MIPA salah satu SMAK di kota Malang dengan menerapkan model pembelajaran inkuiri terbimbing berbantuan mind mapping subyek penelitian ini adalah siswa kelas XI MIPA 1 yang berjumlah 33 siswa. Penelitian ini menggunakan penelitian tindakan kelas (PTK) yang dilakukan dalam dua siklus dengan tahapan-tahapan: (1) perencanaan, (2) pelaksanaaan, (3) observasi, (4) refleksi. Hasil penelitian keterlaksanaan pembelajaran pada siklus I adalah 63.87% berada pada kategori cukup baik dan pada siklus II adalah 86.19% berada pada kategori baik. Sedangkan untuk presentase motivasi belajar siswa pada siklus I adalah 75.31% berada pada kategori baik dan pada siklus II adalah 89.37% berada pada kategori baik. Dan presentase prestasi belajar siswa pada siklus I adalah 69.69% dengan kategori cukup baik, dan pada siklus II meningkat menjadi 87.87% dengan kategori baik. Berdasarkan hasil penelitian ini dapat disimpulkan bahwa penelitian model pembelajaran inkuiri terbimbing berbantuan mind mapping dapat meningkatkan motivasi dan prestasi belajar siswa XI MIPA 1 SMAK Frateran Malang.
ANALISIS KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA BERDASARKAN TAHAPAN POLYA MATERI SEGIEMPAT
Authors: Doko Maria Gaudensia Doa , Sumadji Sumadji , Farida Nur
Published: March 2021

Kemampuan pemecahan masalah siswa pada soal-soal cerita dalam kehidupan sehari-hari masih rendah. Siswa lebih mudah menyelesaikan soal yang hanya menerapkan rumus saja tanpa harus membaca soal cerita. Tahapan pemecahan masalah Polya dianggap mudah dipahami dan banyak digunakan dalam kurikulum matematika di seluruh dunia. Diharapkan dapat membantu siswa lebih runtut dan terstruktur dalam memecahkan masalah matematika. Tujuan penelitian ini, menganalisis kemampuan pemecahan masalah matematika siswa berdasarkan tahapan Polya materi segiempat. Jenis penelitian ini penelitian kualitatif dengan pendekatan studi kasus. Subyek penelitian ini adalah siswa kelas VIIC SMP PGRI 6 Malang. Data penelitian diperoleh dari tes kemampuan pemecahan masalah, wawancara, dan catatan lapangan. Hasil penelitian menunjukkan, subyek yang tergolong pada tingkat 1 yaitu belum mampu melaksanakan empat langkah Polya , subyek yang tergolong pada tingkat 2 yaitu hanya mampu memahami masalah , subyek yang tergolong pada tingkat 3 yaitu mampu memahami masalah, menyusun dan melaksanakan rencana penyelesaian , dan subyek yang tergolong pada tingkat 4 yaitu mampu melaksanakan empat langkah polya . Dari uraian tersebut disimpulkan, mayoritas subyek penelitian berada pada tingkat 3 dalam menyelesaikan soal pemecahan masalah segiempat. Saran bagi guru sebaiknya mengetahui kemampuan pemecahan masalah siswa agar pembelajarannya lebih efektif dan berhasil.
RANCANG BANGUN APLIKASI ANDROID PENILAIAN KINERJA GURU DENGAN METODE AGILE DEVELOPMENT DI MAN 1 KABUPATEN MALANG
Authors: Pradana Yopi Firdha , Wiwin Kuswinardi
Published: March 2021

Penilaian kinerja guru di MAN 1 Kabupaten Malang dilakukan secara manual berbentuk kertas berisi 4 kategori kompetensi penilaian yang terbagi menjadi 14 kompetensi dengan 78 indikatornya. Sehingga dalam melaksanakan penilaian kinerja guru penilai membawa banyak dokumen dan saat pengumpulan dibagian administrasi dokumen sering rusak atau tertukar. Penelitian ini bertujuan menghasilkan rancangan dan aplikasi android penilaian kinerja guru dengan metode Agile Development di MAN 1 Kabupaten Malang dengan metodologi Scrum. Dari penelitian ini didapatkan aplikasi android penilaian kinerja guru yang memudahkan pelaksanaan penilaian kinerja guru dan perekapan hasil penilaian. Hal ini dibuktikan dengan hasil User Acceptance Test (UAT) menunjukkan rata-rata 80,8%.