bluuebunny/crossref_metadata_2025 huggingface dataset:
Conceptual-based design of ultra-broadband microwave metamaterial absorber
Authors: Sheng Ping
Published: December 2021

By introducing metallic-ring structural resonances in the microwave regime, we have designed and realized a metamaterial absorber with hierarchical structures that can display an averaged -19.4 dB reflection loss from 3-40 GHz. The overall thickness of the sample is 14.2 mm, only 5% over the minimum thickness dictated by the causality limit. The measured performance is polarization-independent at normal incidence, while absorption at oblique incidence remains considerably effective up to 45 degrees. We provide a conceptual basis for our absorber design, based on the magnetically-excited, two-dimensional capacitive-coupled (electrical) dipolar resonances in the lateral plane, coupled to the standing wave along the incident wave direction. To realize broadband impedance matching, we use a metallic boundary to split the dipolar resonance into two resonances, and add resistors so as to maximize dissipation over the frequency range in-between the two split resonances. To further extend the absorption spectrum to an ultra-broadband range, we employ a double-layer self-similar structure, in conjunction with the absorption of the diffracted waves at the higher end of the frequency spectrum. The resulting microwave absorber pushes the overall performance close to the causality limit, while simultaneously possesses a large relative absorption bandwidth.
Silence is bliss in a Platonic relationship
Authors: Parnell William J.
Published: December 2021

In the context of active control we work in three dimensions and describe an effective cloaking strategy for the scalar Helmholtz equation. Building on the approach of Guevara-Vasquez et al, and Norris and Parnell, we employ multipole active sources. We choose to locate them at the vertices of the Platonic solids, thus creating a silent zone interior to the imaginary Platonic solid and ensuring that only the incident field remains exterior to the active source configuration. The Platonic distribution of the sources ensures an extremely efficient implementation of the cloaking strategy. In particular, once the multipole source amplitudes required at a single source location are determined, the other source amplitudes can be calculated by a simple post-processing involving multiplication of the source vector by a rotation matrix, exploiting the Platonic source distribution. Depending on time we may also briefly describe some recent work on elastic wave control via resonant metaclusters.
Multipurpose metamaterials: designing for static, acoustic and elastic properties in a single architecture
Authors: Daraio Chiara
Published: December 2021

Mechanical metamaterials are materials with a tailored, architected structure, designed to achieve properties that depart from those found in natural or more “conventional” engineering materials. Common realizations of metamaterials are periodic and derive their properties from an interplay of the constitutive material responses and their architected geometry. Most of these designs to date have been developed to address a single functionality (e.g., for supporting a certain band gap, a low-frequency resonant response, a topological waveguide). However, many engineering applications have to satisfy simultaneously multiple constraints and demand specific static and dynamic responses. Increasing the design complexity allows the realization of materials with desirable effective properties, and added functionalities. In this talk, I will highlight some of our recent work in the design, fabrication and characterization of structured, multipurpose metamaterials and their possible application to engineering problems. For example, materials that can control acoustic and elastic waves simultaneously, which can function as ultimate protectors, or materials that are designed with specific acoustic impedance and load-bearing properties, which can function as acoustic windows, or flexible, resonant metamaterials for haptic interfaces.
Odd robotic matter
Authors: Coulais Corentin
Published: December 2021

Controlling how waves propagate, attenuate and amplify in simple, scalable geometric structures is a daunting challenge for science and technology. In this talk, I will discuss how odd media—media in which energy conservation and chiral symmetries are simultaneously broken—can be used to steer mechanical waves in unprecedented ways. Combining experiments on mechanical lattices of distributed robots with wave physics and continuum mechanics, I will discuss the emergence of unidirectionally amplified waves, of topological waves and of one-way solitons in odd media. I will further show how these odd waves can be used to induce locomotion and unusual responses to impacts and hence pave the way towards a novel generation of materials with animate properties.
Machine Learning Assisted Photonics: From Metasurface Design and Materials to Quantum Photonics
Authors: Boltasseva Alexandra
Published: December 2021

Discovering unconventional optical designs via machine-learning promises to advance on-chip circuitry, imaging, sensing, energy, and quantum information technology. In this talk, photonic design approaches and emerging material platforms will be discussed showcasting emerging photonic materials, machine-learning-assisted topology optimization for thermophotovoltaic metasurface designs and machine-learning-enabled quantum optical measurements.
Bubbly Acoustic Metamaterials
Authors: Page John
Published: December 2021

Bubbly metamaterials are created by exploiting the low-frequency Minnaert resonance of bubbles, and can radically modify acoustic wave behaviour. In this presentation, I will first review the properties of bubble metascreens, which consist of a single layer of bubbles in a soft solid, and can be very efficient absorbers of waterborne acoustic waves. Two different metalayer configurations will be considered that allow almost perfect compensation of the radiative scattering losses, so that virtually all of the acoustic energy can be absorbed. I will show how optimization of bubble metascreens’ performance is facilitated by a relatively simple analytical model, and that, despite being resonance-based, near-perfect absorption is possible over a very wide frequency range even when the metalayer is ultrathin. In the second part of the talk, I will describe three-dimensional structures with pair-wise spatial correlations between the bubbles. Such structures exhibit doubly negative behaviour even though the low-frequency resonance of a single bubble is purely monopolar. Furthermore, this doubly negative behaviour can occur when the bubble pairs are arranged in either random or periodic configurations. Predictions for both types of structure will be presented and the influence of dissipation on doubly negative behaviour discussed. For the 3D crystalline metamaterial case, the focusing and imaging capabilities of a flat metalens will be demonstrated, showing the imaging of a point source by a slab with a relative refractive index n = -1, evidence of super-resolved focusing, and the imaging of an extended object.
The Impact of Management Styles on Parent Involvement in (First Grade) High Schools in District 3 of Tehran City
Authors: Delshad Kobra , Hosseini Seyd Rasul , Oladian Masoumeh
Published: December 2021

The aim of the present study has been to examine the impact of management styles on parent involvement in (first grade) high schools in district 3 of Tehran in educational year 2014-15. Research methodology has been applied and descriptive-correlational in terms of purpose and method of data collection respectively. In this study, statistical population included vice-principals, counselors and teachers of (first grade) high schools in district 3 of Tehran, out of which a sample size of 150 persons was determined by using Cochran’s formula and through stratified random sampling. In order to collect data, two researcher-made questionnaires of management style (40 items) and parent involvement (11 items) were used; Cronbach’s alpha coefficient was adopted to measure the reliability of questionnaires and the obtained coefficient was above 0.7 for both questionnaires. Besides, in order to measure the validity, content-related validity was adopted; for this purpose, the questionnaires were approved of by related experts. The analysis of the data obtained from administering the questionnaires was carried out through SPSS software in two sections of descriptive and inferential statistics (Kolmogorov-Smirnov test, Pearson’s correlation test, multiple regression). Research findings indicated that management styles (autocratic, benevolent (paternalistic), consultative, and participative) have significant impact on parent involvement in (first grade) high schools in district 3 of Tehran.
[Retract] Exchange Rate Volatility and Rwanda's Balance of Trade
Authors: Nkurunziza Fabrice
Published: December 2021

Announcement of RetractionThe editorial board announced this article has been retracted on April 27, 2017.If you have any further question, please contact us at ijld@macrothink.org
Educational results from blended learning: Using an educational platform in teaching Economics
Authors: Brinia Vasiliki , Kavaliarakis Panagiotis
Published: December 2021

This research investigates the learning result of applying blended learning with the combined use of open educational platform and traditional teaching. This educational intervention took place during the course Principles of Economic Theory in the 3rd grade of High School. We measured the differences in student performance in an assessment test before and after the educational intervention, but also the changes in their attitude as to the course of the economy, itself. Moreover, we evaluated the students’ satisfaction from using the open educational platform, but also the social presence which was created. The results led to the conclusion that hybrid teaching methods, can be used in the teaching of Economics and is considered as important as traditional ones.
Motor and cognitive evaluations of rats exposed to the larvicide pyriproxifem in the prenatal period
Authors: Aguiar Gabrielle Batista de , Villanova Bianca , Pereira Katriane Endiel , Rabello Nicole Jansen , Moresco Rafaela Maria , Souza Marcelo Alves de , Centenaro Lígia Aline
Published: December 2021

Background: In 2015 and 2016, there was an increase in microcephaly cases in Brazil, which were attributed to maternal contamination by Zika virus. However, the spread of this virus in the Brazilian states was not accompanied by an increase in the registers of this malformation. Thus, the use of the larvicide pyriproxifem to the control of mosquito Aedes Aegypt is being questioned. Objectives: Investigate the motor and cognitive function of rats exposed to piriproxifem in prenatal period. Design and setting: The study was developed at the Universidade Estadual do Oeste do Paraná, in the Cascavel campus. Methods: Three experimental groups were used: Negative control (CT-) - offspring of rats which consumed water during pregnancy; Positive control (CT+) - offspring of rats which consumed water containing retinoic acid during pregnancy; Piriproxifem (PIR) - offspring of rats which consumed water containing Sumilarv®, larvicide whose active substance is the pyriproxifem, during pregnancy. The gait quality was assessed using the Basso, Beattie and Bresnahan scale (1995). Object-Placement Recognition Task was used to the spatial memory evaluation (Pizza et al., 2011). Results: There were no statistical differences between the groups in relation to the gait quality and the preference for the relocated object. Nevertheless, two animals in the PIR and five animals in the CT+ group had external rotation of the hindlimbs during locomotion or deficits in motor coordination. Conclusion: The mild motor deficits found indicate the need for studies to confirm a possible deleterious effect of this larvicide on the nervous system development.
Complete Ramsay Hunt Syndrome: a rare case
Authors: Holanda Filho Maurus Marques de Almeida , Holanda Maurus Marques de Almeida , Holanda Camila Maria Bezerra
Published: December 2021

Background: Ramsay Hunt syndrome or herpes zoster oticus is a disorder caused by the reactivation of the varicella zoster virus in the geniculate ganglion, a bundle of nerve cells in the facial nerve. Symptoms include acute facial nerve palsy, otalgia, loss of taste in the anterior 2/3 of the tongue, dry mouth and eyes, and erythematous vesicular rash in the ear canal, tongue and / or palate. Objectives and Methods: Describe the case of a male patient, 26 years old, with complete Ramsay Hunt syndrome, reporting pain in the right ear with tinnitus, difficult to close his right eye, odynophagia and pain in the anterior 2/3 of the tongue at right side. Results: On examination, the presence of vesicles with erythema was observed in the region of the right external auditory canal and the ear, as well as on the right palate and tongue. Upon inspection, he had peripheral facial paralysis on the right, associated with loss of taste in the anterior 2/3 of the tongue. The patient was treated with antiviral and corticosteroids, followed for 3 months, obtaining partial recovery from facial paralysis. The anatomy of the facial nerve and its pathophysiology due to the involvement of herpes zoster will be discussed. Conclusion: Ramsay Hunt syndrome is often described as the presence of peripheral facial paralysis and vesicles in the auditory canal and the ear. However, this rare case presented the complete condition with the presence of vesicles on the palate and the tongue.
Epidemiology of Cerebrovascular Disease Mortality in Brazil (1996- 2015): temporal modeling using inflection point regression
Authors: Paiva João Paulo Silva de , Baggio Jussara Almeida de Oliveira , Leal Thiago Cavalcanti , Silva Leonardo Feitosa da , Santos Lucas Gomes , Carmo Rodrigo Feliciano do , Santana Gibson Barros de Almeida , Araújo Amanda Karine Barros Ferreira de , Rocha Carlos Alberto de Oliveira , Matos Thais Silva , Armstrong Anderson da Costa , Mariano Renato de Souza , Souza Carlos Dornels Freire de
Published: December 2021

Background: cerebrovascular diseases (CVD) are the second leading cause of death in the world. Objective: to analyze the trend of mortality from CVD in Brazil (1996-2015) and its association with the human development index (HDI) and the social vulnerability index (IVS). Methods: this is an ecological study involving mortality rates standardized by CVDD. Death data were obtained from the Mortality Information System and population data from the Brazilian Institute of Geography and Statistics. For temporal analyzes, the inflection point regression model was used, with the annual percentage change (APC) and average annual percent change (AAPC), with a confidence interval of 95% and significance of 5%. The trends were classified as increasing, decreasing or stationary. The multivariate regression model was used to test the association between mortality from CVD, HDI and IVS. Results: 1,850,811 deaths due to CVD were recorded in the studied period. There was a reduction in the national mortality rate (APC:-2.4; p=0.001). Twenty federative units showed significant trends, 13 of which were decreasing, including all from the Midwest (n=4), Southeast (n=4) and South (n=3) regions. The HDI had a positive association and the IVS, a negative association with mortality (p=0.046 and p=0.026, respectively). Conclusion: the study showed an unequal epidemiological behavior of mortality among the regions, being higher in the states of the Southeast and South, but with a significant tendency to decrease, and lower in the states of the North and Northeast, but with a significant trend of growth. HDI and IVS were associated with mortality.
Chorea in a Non-Ketotic Hyperglycemic State: Case Report
Authors: Souza Felipe Fanine de , Wendhausen Ana Luiza da Silva , Machado Felipe Reinert Avilla , Silva Gustavo Figueiredo da , Fileti Maria Eduarda Angelo de Mendonça , Oliveira Raddib Eduardo Noleto da Nóbrega de , Guimarães Rafael Pereira , Nunes Thábata Emanuelle Martins , Ribas Gustavo da Cunha , Reimer Nayara dos Santos , Moro Carla Heloísa Cabral , Longo Alexandre Luiz
Published: December 2021

Context: Non-ketotic hyperglycemia is a rare cause of chorea. Clinical findings are usually unilateral and potentially reversible after treatment for hyperglycemia. Hyperglycemia leads to asymmetric multifocal petechial hemorrhages of the basal ganglia, leading to a dysfunction of neuronal networks that connect the basal ganglia and the motor cortical areas, mainly affecting the subthalamic nucleus and contralateral striatum, which is highlighted by typical hyperdense lesions of the basal ganglia in computed tomography (CT) of the brain. This study aimed to report a case of a patient with choreiform movements due to a rare etiology of hyperglycemia nonketotic in a Hospital Public of Joinville, SC. The study was carried out through the collection and analysis of a patient’s medical record. Case report: Female patient, 54 years old, who presented for 6 days choreiform movements in the face, left upper limb and, discreetly, in the left lower limb. Snake tongue sign and milkmaid’s grip positive, without dysarthria. In the laboratory exam, glucose of 600 mg / dL; without further changes. Cranial tomography showed hyperdensity in the putamen region on the right. The treatment was started to obtain better glycemic control and Risperidone 3 mg / day. Conclusions: It is concluded, then, that non-ketotic hyperglycemia is an uncommon, but reversible cause of chorea, and may manifest itself due to an uncontrolled non-ketotic diabetes mellitus. Its pathogenic mechanism remains to be clarified. In addition, clinical, epidemiological, imaging and laboratory findings, together, corroborate for early diagnosis and proper management.
Non-motor clinical manifestations of Parkinson’s disease and its relevance in early diagnosis
Authors: Fernandes Lucca Ferdinando Queiroz , Dantas Raiana Carol de Medeiros , Araújo Maria Clara Medeiros , Andrade Lucas de Oliveira Araújo
Published: December 2021

Introduction: Parkinson’s disease is a progressive neurodegenerative disease that affects millions of people worldwide. Although Parkinson’s disease has traditionally been described as a disorder of the motor system, it is now recognized as a complex disease with several clinical features that include neuropsychiatric and non-motor manifestations. Studies show that 97% of patients with Parkinson’s disease report non-motor symptoms, in addition to motor symptoms, and some non-motor characteristics may appear before classic motor signs. Objectives: To list the main non-motor clinical manifestations of Parkinson’s disease and analyze its importance in establishing an accurate and early clinical diagnosis. Methods: This is an integrative review, carried out based on the search of scientific publications indexed in the datebase MEDLINE via PubMed, Lilacs and SciELO. At the end of the searches, 66 publications met the eligibility criteria and were selected to compose the study. Results: Within the non-motor clinical manifestations, there may be present: cognitive dysfunction and dementia, psychosis and hallucinations, mood disorders, sleep disorders, fatigue, autonomic dysfunction, olfactory dysfunction, gastrointestinal dysfunction, pain, sensory disorders and dermatological manifestations. Of these, olfactory dysfunction, constipation, depression and sleep disorders stand out because they often precede the motor symptoms of Parkinson’s disease. Conclusion: In this perspective, it is up to the general practitioner and the neurologist or geriatrician to carry out, whenever possible, screening tests to identify early changes that may precede Parkinson’s disease, guaranteeing patients an early multiprofessional treatment and consequently a better prognosis in the course of the disease.
Efficacy of deep brain stimulation in the treatment of obsessive-compulsive disorder: a systematic review
Authors: Chocair Arthur Dal Fabbro , Caldeira Heitor Ferreira Silva , Oliveira Jose Roberto Beretta Paiano de , Ceravolo Lucca Leonardo , Rodrigues Felipe Viegas
Published: December 2021

Backgroud: In cases of severe treatment refractory obsessive-compulsive disorder (OCD), neurosurgical therapy can be applied, in two possible ways: anterior capsulotomy (AC) or deep brain stimulation (DBS). Objectives: This study aims to clarify whether surgical intervention is able to reduce obsessions and compulsions, using the Yale-Brown obsessive-compulsive scale (Y-BOCS). Design and setting: we performed a systematic review of studies available in four databases from 2000 to 2020. Methods: the serch was performed using variations of descriptors: “OCD”, “DBS” and “anterior capsulotomy”; only studies that respect the eligibility criteria predefined were included. Results: After online research, 9 eligible articles were identified, containing a total of 129 patients. Global Y-BOCS score reduction percentage was 47,81% and global responders percentage at 68,1%. The Y-BOCS reduction percentage by DBS was 43,18% and clinical response rate was 62,33%, with two remission cases. In comparison, AC led to a reduction of 52.25%; a response rate of 73.88% and 5 remission cases. The adverse effects seen were varied and depend on the type of procedure and each individual. Conclusion: The data collected support the hypothesis that surgical intervention reduces the Y-BOCS scale and consequently the symptoms of OCD; it also generates a significant clinical response. DBS showed less clinical response and remission, but it has the advantage of being a reversible therapy and producing fewer adverse effects; but it does have some relative disadvantages in relation to AC, which may be overcome by technological advances.
Perimetry as a technique from the standpoint of practicing ophthalmologists
Authors: Grigoryan L. A. , Simakova I. L. , Kuroyedov A. V.
Published: December 2021

PURPOSE. To study the needs of practical ophthalmologists concerning the functionality and performance of automatic perimeters, and offer a possible solution to meet these needs.

METHODS. An online survey of Russian ophthalmologists was organized and conducted. The survey was attended by specialists representing various medical institutions and medical research centers. As a result of the survey, 132 filled questionnaire forms were received and analyzed using the Kano and 4C models.

RESULTS. According to experts, it is necessary for ophthalmologists to have an accessible automatic perimeter equipped with the screening (for the initial examination of patients) and threshold (to clarify the depth of photosensitivity disturbance of detected visual field defects) strategies. The general requirements for the functional characteristics of the screening and threshold tests of the automatic perimeter have been determined: small variability of repeated results, the speed and simplicity of the study — particularly, by employing the Frequency Doubling Technology (FDT), a non-standard perimetry technique. The requirements of users for the operational method of the automatic perimeter have been determined: absence of the need for a specially prepared room and place, mobility, portability, maximum ease of use to ensure the possibility of performing screening and primary diagnostics outside medical institutions, including by mobile medical teams, and also to allows examinations of individuals with disabilities, including bedridden patients, both in the hospital and at home.

CONCLUSION. Based on the study data, the needs of ophthalmologists in the functional and operational characteristics of modern automatic perimeters were identified showing that the automatic perimeters presently used by modern medical institutions are far from optimal in terms of their properties/characteristics. These devices do not allow perimetry to be performed on patients with disabilities, including bedridden patients, neither at home nor in the hospitals. In addition, these devices require a darkened room, they are difficult to use, while their licensing documentation states that only ophthalmologists can conduct the examinations. Manufacturers do not offer solutions tailored to the individual needs of specific user groups — outpatient ophthalmologists who in particular work with disabled patients.
Analysis of changes in structural and hemodynamic parameters of the retina and foveolar avascular zone in patients with primary open-angle glaucoma and diabetes mellitus observed in long-term follow-up
Authors: Fursova A. Zh. , Gamza Y. A. , Gusarevich O. G. , Derbeneva A. S. , Vasilyeva M. V. , Chubar N. V. , Tarasov M. S.
Published: December 2021

PURPOSE. To study the changes in structural and hemodynamic parameters of the retina and foveolar avascular zone (FAZ) over time in patients with primary open-angle glaucoma (POAG) and diabetes mellitus (DM) observed in long-term follow-up.

MATERIALS AND METHODS. The study included 258 patients (258 eyes) divided into five groups: group 1 — 58 patients (58 eyes) with stage I POAG and DM; group 2 — 50 patients (50 eyes) with stage I POAG; group 3 — 50 patients (50 eyes) with stage III POAG and DM; group 4 — 50 patients (50 eyes) with stage III POAG; group 5 — 50 patients (50 eyes) with DM. Patients underwent comprehensive ophthalmological examination, spectral domain optical coherence tomography (SD-OCT), optical coherence tomo-graphy angiography (OCT-A) of the macular region. The follow-up lasted 24 months.

RESULTS. Analysis of the initial parameters in groups of patients with comorbidities showed the lowest values compared to controls, which were progressively worsening. MD in the group with DM + stage I POAG had reliably decreased after 12 months (by 5.05%), after 24 months by 12.12% (p≤0.05). The speed of GCL+IPL loss in groups 1 and 3 during the first year of observation was almost equal for initial and advanced glaucoma — 1.35 (-2.03%) and 1.32 (-2.36%) µm/year, but in group 3 the loss had doubled after two years (2.48 (-4.44%) and 1.41 (2.12%) µm/year). Deterioration of hymodynamic parameters in the macular region in groups 1 and 3 was noted primarily in the inner sectors (whole image vessel density in parafovea (PF wiVD) -0.79% during the first, and -2.57% during the second year in initial glaucoma, -0.6% and -1.24% in advanced, whole image vessel density in parafovea (PF wiVD) -0.2% and -1.22%, -0.66% and -1.56%, respectively). Parameters of FAZ had changed significantly after 2 years in patients with stage I POAG and DM: its area size had increased by 10.2%, perimeter by 4.49%, circularity index had decreased by 3.17%.

CONCLUSION. Comorbidity of POAG and DM is accompanied by development and quick progression of significant changes in structural and hemodynamic parameters of the retina as observed by this long-term follow-up.
Abese Suresi Bağlamında Hz. Peygamber'e Yöneltilen “İtâb” Ayetleri
Authors: TAY Mesut
Published: December 2021

Âyeterin dil ve üslup özellikleri kendisine has nitelikler taşır. Davet süreci boyunca, muhatap toplumu yönlendirici şekilde ilahi kelamla olaylara müdahale edilerek, İslam’ın teşekkülü sağlandı. Mekkî ayetlerin temel özelliklerinden biri de oldukça sert bir tonda muhatap kitlenin hedef alınmasıydı. Bu sert hitabın muhatabı şüphesiz Mekke inkârcılarıydı. Ancak az da olsa Hz. Peygamber’in de bazı davranışlarından dolayı ilahi tenkit ve uyarıya muhatap olduğu kabul edilmektedir. Nitekim bu mahiyetteki ayetler, tefsir literatüründe “itâb ayetleri” kavramıyla inceleme konusu yapılır.
Hz. Peygamber bulduğu her fırsatı değerlendirerek kavmini İslam’a davet ediyordu. Önemli taktiklerinden biri de Mekke ileri gelenlerinin iman etmesini sağlamaktı. Zira Mekke’yi yöneten bu seçkin zümreyi ikna edebilseydi, diğerlerinin kolaylıkla İslam’ı kabul edeceğini biliyordu. Hz. Peygamber, Mekke ileri gelenlerine İslam’ı tebliğ ettiği bir sırada âmâ olan Abdullah ibn Ümmü Mektûm (ö. 15/636) hızla kendisine yöneldi ve ona İslam ile ilgili bir şeyler söylemesini talep etti. Bulduğu davet fırsatını kaybetmek istemeyen Hz. Peygamber, İbn Ümmü Mektûm’un bu davranışından hoşlanmadı ve onunla ilgilenmeyerek konuşmasına devam etti. Bunun üzerine bu olayı konu edinen ve Hz. Peygamber’in davranışını tenkit eden Abese suresinin ilk ayetleri nazil oldu. Bu araştırmada, Mekke döneminde nazil olan ve Abese suresinin ilk on ayetine konu olan bu vakıa ele alınacaktır.
Bu çalışmada, vakıanın tarihi arka planında yer alan Mekke ileri gelenlerinin toplumdaki konumları ve bunların iman etmesi için Hz. Peygamber’in gösterdiği çabaya yer verilecektir. Abese suresi ilk on ayeti bağlamında iman etmemek için direnenlerin toplumun seçkinleri olsalar dahi davette öncelikli olmadıkları, vakıanın kahramanı olan Abdullah İbn Ümmü Mektûm’un isteğinin neden geri çevrilmemesi gerektiği, Hz. Peygamber’in iman etmemekte direnenleri daha önce iman etmiş olan birine tercih etmemesi gerektiği ve “itâb” edildikten sonra Hz. Peygamber’in takındığı tavır çeşitli yönleriyle ele alınacaktır. Ayrıca söz konusu vakıa bağlamında “itâb” kavramı incelenerek, alimlerin konu ile ilgili görüşlerine yer verilecektir.
MAKNA KERUKUNAN DAN TOLERANSI DALAM PERSPEKTIF AGAMA ISLAM DAN AGAMA BUDDHA
Authors: Maryani Dwi
Published: December 2021

Kehidupan beragama tercermin dalam sikap, perilaku dan tindakan sesuai dengan nilai-nilai agama. Toleransi dan penghargaan atas pluralitas saat ini mengalami tantangan yang hebat. Kerukunan hidup beragama adalah kondisi bagi semua golongan agama bisa hidup bersama-sama secara damai tanpa mengurangi hak dan kebebasan masing - masing untuk menganut dan melaksanakan kewajiban agamanya. Kerukunan yang dimaksud bukan berarti penganut agama yang satu tidak merasa perlu atau menahan diri untuk melibatkan persoalan keagamaan dengan pihak lain, karena kebersamaan menghendaki tenggang rasa, yang benar-benar dimungkinkan jika saling memahami. Kerukunan akan bisa dicapai apabila setiap golongan agama memiliki prinsip setuju dalam perbedaan. Setuju dalam perbedaan berarti orang mau menerima dan menghormati orang lain dengan seluruh aspirasi, keyakinan, kebiasaan dan pola hidupnya, menerima dan menghormati orang lain dengan kebebasan untuk menganut keyakinan agamanya sendiri.
ANALISIS KESULITAN PEMBELAJARAN MATEMATIKA DENGAN SISTEM DARING MASA PANDEMI COVID-19 PADA SISWA KELAS VII DAN KELAS VIII SMP TAHFIZH AL-ITTIBA’ KLATEN TAHUN AJARAN 2020/2021
Authors: Angga putra Alfian , Susanto Herry Agus , Hidajat Djatmiko
Published: December 2021

Tujuan penelitian ini adalah Ingin mendeskripsikan kesulitan pembelajaran matematika dengan sistem daring masa pandemi covid-19. Hasil penelitian ini diharapkan dapat dijadikan sebagai bahan masukan dan pertimbangan untuk pengambilan keputusan dalam rangka penanganan kesulitan belajar yang dialami siswa. Penelitian ini menggunakan metode deskripstif dengan pendekatan kualitatif. Subjek pada penelitian ini adalah Siswa Kelas VII dan Kelas VIII SMP TAHFIZH AL-ITTIBA’ Klaten yang melaksanakan pembelajaran matematik dengan sistem daring pada semester genap tahun akademik 2020/2021. Teknik pengumpulan data yang digunakan pada penelitian ini berupa angket dan wawancara. Angket terdiri dari pernyataan positif dan negatif dengan jumlah 16 butir pernyataan yang sesuai dengan indikator. Sedangkan wawancara terdiri dari 16 pertanyaan yang sesuai dengan indikator. Teknik analisis data yang digunakan adalah reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa kesulitan pembelajaran matematika dengan sistem daring dipengaruhi oleh faktor internal dan faktor eksternal. Faktor internar penyebab kesulitan belajar meliputi aspek minat dengan persentase 60,60% dalam kategori menghambat, aspek kesiapan belajar dengan presentasi 70,38 dalam kategori cukup menghambat, aspek motivasi dengan persentase 60,33% dalam kategori menghambat, aspek kesehatan dengan persentase 82,88% dalam kategori tidak menghambat. Faktor eksternal penyebab kesulitan belajar meliputi aspek keluarga dengan persentase 86,14% dalam kategori tidak menghambat, aspek sekolah dengan persentase 62,93% dalam kategori cukup menghambat, dan aspek lingkungan atau masyarakat dengan persentase 66,30% dalam kategori cukup menghambat.

Kata Kunci: Kesulitan Belajar, Pembelajaran Daring, Covid-19
Türkiye’de yabancı turist girişleri ve askeri harcamalar arasındaki ilişki
Authors: GÜNGÖR Bayram
Published: December 2021

Turizm sektörü hem yerel hem de uluslararası sosyal, ekonomik ve siyasal gelişmelere anında tepki veren kırılgan bir sektördür. Dolayısıyla sektörün ulusal güvenlik konusunda son derece hassas olduğu ileri sürülebilir. Bilindiği gibi Türkiye önemli bir turizm merkezidir ve jeo-stratejik konumundan kaynaklanan içsel ve dışsal bazı tehditler nedeniyle birtakım güvenlik problemleri taşımaktadır. Çalışmanın amacı Türkiye bağlamında yabancı turist girişleri ile askeri harcamalar arasındaki kısa ve uzun dönem ilişkileri ARDL modeli kullanarak,1994-2019 dönemi itibarıyla tahmin etmektir. Modelde yabancı turist girişleri ile askeri harcama değişkenleri dışında kontrol değişkenleri olarak karbondioksit salınımı, GSYİH ve dışa açıklık değişkenleri kullanılmıştır. Çalışmada yabancı turist girişleri ile askeri harcamalar arasında istatistiksel olarak anlamlı negatif bir ilişki bulunmuştur. Yani askeri harcamalarda meydana gelen artış yabancı turist girişlerini olumsuz yönde etkilemektedir. Modelin hata düzeltme katsayısı da istatistiksel olarak anlamlı ve negatif bulunmuştur.
PENDAMPINGAN DAN PRAKTEK PEMBUATAN MEDIA PEMBELAJARAN BAGI MAHASISWA PGSD UNIVERSITAS COKROAMINOTO PALOPO
Authors: Indah Opik Dwi , Suhardi Suhardi , Ramadhana Muhammad Affan
Published: December 2021

Media pembelajaran sangat menunjang keberhasilan sebuah proses belajar mengajar karena dapat membantu serta memudahkan siswa menangkap materi pembelajaran. Oleh sebab itu, selain materi pembelajaran, guru juga perlu dan di tuntut untuk harus mempersiapkan sebuah media sebelum mengajar. Kegiatan ini bertujuan untuk memberikan manfaat bagi mahasiswa sebagai calon pendidik dengan membakali diri mereka dari sekarang khususnya dalam mendesain dan membuat sebuah media pembelajaran yang tepat digunakan saat mengajar. Kegiatan pengabdian ini dilaksanakan selama 1 bulan, dimana dalam pelaksanaannya terbagi dalam beberapa tahap yaitu: (1) tahap perencanaan, (2) tahap pelaksanaan dan (3) tahap evaluasi. Target kegiatan ini adalah mahasiswa PGSD semester V pada program studi PGSD Universitas Cokroaminoto Palopo khususnya yang telah mengikuti perkuliahan pada mata kuliah Media Pembelajaran. Jumlah mahasiswa yang mengikuti kegiatan ini sebanyak 47 orang. Adapun manfaat dari kegiatan ini adalah dapat membentuk pribadi calon pendidik yang memiliki keterampilan dan sikap serta cakap dalam menyelenggarakan pendidikan dan pengajaran di sekolah maupun di luar sekolah dengan menguasai keterampilan tentang bagaiamana mendesain dan membuat media pembelajaran yang tepat, yang disesuaikan dengan keadaan dan kebutuhan peserta didik, Sehingga, melalui kegiatan ini dapat meningkatkan mutu pendidikan yang ada di Indonesia khususnya di kota Palopo. Selain itu bagi mahasiswa, diharapkan dapat meningkatkan mutu profesi sebagai calon pendidik. Oleh sebab itu, mahasiswa PGSD khususnya semester V sebagai seorang calon guru yang telah belajar Media Pembelajaran harus mampu mengaplikasikan teori yang ada dengan mewujudkannya secara langsung berupa praktek membuat media pembelajaran.
PENDAMPINGAN PEMBUATAN MIKRO ORGANISME LOKAL (MOL) BAGI MASYARAKAT DESA SALU INDUK
Authors: Nurmalasari Nurmalasari , Suhaeni Suhaeni
Published: December 2021

Desa Saluinduk merupakan salah satu desa dengan komoditi utama tanaman padi. Kegiatan pengabdian kepada masyarakat ini dilakukan di Desa Saluinduk, Kabupaten Luwu, Provinsi Sulawesi Selatan. Sasaran dalam kegiatan ini adalah kelompok tani Saluinduk. Tujuan kegiatan pengabdian kepada masyarakat ini adalah memberikan pengetahuan kepada petani padi tentang cara memperoleh mikroorganisme lokal (MOL). Metode yang diterapkan dalam kegiatan ini berupa workshop dan pendampingan praktik pembuatan MOL. Hasil pendampingan menunjukkan bahwa petani memahami pengetahuan tentang pupuk organik cair berbahan MOL dan cara pembuatannya.
PENGENALAN ALAT PENYIRAM TANAMAN OTOMATIS BAGI PENJUAL TANAMAN HIAS DI KOTA PALOPO
Authors: Jusmi Fitri , Manrulu Rahma Hi , Rosman Andi , Namora Indira
Published: December 2021

Telah dibuat alat penyiram tanaman otomatis dengan bantuan sensor kelembaban tanah dan mikrokontroler arduino uno, Dengan alat ini, manusia tidak perlu lagi menyiram tanamannya secara manual setiap hari, dikarenakan alat ini dapat menyiram tanaman secara otomatis apabila kondisi tanah pada tanaman tersebut kering atau kelembaban tanahnya berkurang. Alat ini dapat diaplikasikan pada tanaman hias yang dipelihara baik dalam ruangan ataupun kebun kecil olehpara penjual tanaman hias yang ada di Kota Palopo. Hasil kegiatan abdimas yang diperoleh adalah ketiga tahapan pelaksaan berjalan baik dan mitra kegiatan menyambut baik kegiatan ini. Alat yang dirancang sangatlah tepat sasaran dan dapat digunakan dengan baik oleh mitra.
SOSIALISASI PENGENALAN INVESTASI PASAR UANG & MODAL DIKALANGAN GENERASI Z (KHUSUS MAHASISWA DAN UMUM) DI PEKANBARU
Authors: Windreis Christ , Hartono Wira Jaya , Yanti Yanti
Published: December 2021

Dengan Perkembangan teknologi yang begitu cepat sangat memperngaruhi masyarakat diseluruh dunia menjadi sensitif pada semua informasi termasuk pasar saham dan uang. Di Indonesia, jumlah ketertarikan pada dunia saham dan pasar uang sangat meningkat dengan signifikan untuk menjadi investor, tanpa mereka ketahui dengan benar. Dengan kecepatan informasi dimedia sosial, masyarakat langsung bergabung tanpa mempelajari atau diedukasi tentang resiko yang dihadapi. Ketika pasar tidak begitu baik. Ada beberapa hasil yang tidak bisa terima dan mereka tidak mengetahui cara mengatur atau menghadapi resiko tersebut. Sehingga hasilnya, banyak uang diinvestasikan menjadi berkurang bahkan hilang. Dengan adanya kejadian seperti ini, sosialisasi ini berfokus pada generasi Z yang ada di kota Pekanbaru. Kegiatan ini memaparkan bagaimana pengenalan pada pasar saham dan uang dan bagaimana cara mengatur resiko. Metode dalam sosialisasi ini menggunakan daring atau zoom meeting yang dikuti oleh 27 peserta. Dari hasil kusioner masih terdapat 74% belum mengetahui atau bergabung dalam investasi saham atau forex. Dari analisis t-test terdapat perbedaan hasil pemahaman antara pre test dan postest.  Dan juga minat berinvestasi dipasar saham masih tinggi secara keinginan sendiri, dikuti oleh adanya iklan dan influencer saham yang memperngaruhi orang-orang untuk menjadi investor, lalu ajakan atau ikut-ikutan teman. Sehingga seluruh peserta juga menginginkan pelatihan atau workshop secara mendalam mengenai pasar uang dan saham
PELATIHAN PEMBUATAN LAPORAN KEUANGAN USAHA KECIL MIKRO DAN MENENGAH DI KECAMATAN CIPOCOK JAYA KOTA SERANG
Authors: Sari Titis Nistia , Dabella Yunia  , Muttaqin Galih Fajar
Published: December 2021

Kegiatan pengabdian pada masyarakat berupa pendampingan dalam pembuatan laporan keuangan bagi usaha mikro dan kecil menengah di Kecamatan Cipocok Jaya. Laporan Keuangan merupakan catatan formal tentang keuangan dari suatu perusahaan. Ini adalah laporan tertulis yang mengukur kekuatan finansial, kinerja, dan likuiditas perusahaan. Selain itu, laporan keuangan juga mencerminkan dampak finansial dari transaksi bisnis.Dari hasil kegiatan pelatihan tersebut para anggota usaha mikro kecil dan menengah Kecamatan Cipocok Jaya mampu membuat neraca awal, membuat jurnal, memposting ke buku besar, menyusun laporan keuangan. Pelaksanaan pelatihan yang diberikan kepada anggota komunitas pedagang bakso di Kecamatan Cipocok Jaya sudah merupakan langkah tepat untuk memotivasi selera usaha masyarakat.
PELATIHAN PENERAPAN METODE GASING DALAM OPERASI PENJUMLAHAN, PENGURANGAN, PERKALIAN DAN PEMBAGIAN
Authors: Nursakiah Nursakiah , Bahar Erni Ekafitria
Published: December 2021

Kegiatan Pengabdian Masyarakat ini (PKM) bertujuan untuk memberikan pengetahuan kepada guru-guru tentang metode pembelajaran matematika dengan langkah-langkah yang dapat membuat peserta didik menguasai matematika secara gampang, asik dan menyenangkan. Kegiatan ini memperkenalkan metode gasing pada materi penjumlahan, pengurangan, perkalian dan pembagian. Metode yang digunakan yaitu (1) Metode observasi, dilakukan dengan melakukan wawancara terhadap guru kelas untuk mengumpulkan data tentang metode yang digunakan dalam mengajarakan matematika terutama pada materi penjumlahan, pengurangan, perkalian dan pembagian, (2) Metode ceramah dan demonstrasi dilakukan pada saat menyajikan materi metode gasing, (3) Metode pemberian angket dilakukan setelah penyampaian materi untuk mengetahui respon peserta pelatihan selama kegiatan pelatihan. Peserta kegiatan sebanyak 28 orang yang merupakan guru kelas pada Sekolah gugus V Wilayah III Kecamatan Herlang Bulukumba. Peserta pelatihan antusias selama kegiatan ini. Hasil pengabdian ini adalah: (1) peserta pelatihan memahami menghitung dengan metode gasing pada materi penjumahan, pengurangan, perkalian, dan pembagian; (2) peserta pelatihan merasa lebih mudah dan lebih cepat dalam menghitung dengan metode gasing; (3) peserta pelatihan memberikan respon positif (78%) terhadap kegiatan pelatihan ini.
PEMBERDAYAAN MASYARAKAT MELALUI “PROGRAM JAMBAN SEHAT” UNTUK PENINGKATAN KESEHATAN LINGKUNGAN
Authors: Arfan Iskandar , Diono Lukas , Sumarto Tri Eko , Yuniarsih Lilik , Idris Muhammad , Subardi  , Zakaria
Published: December 2021

Desa Sukabangun Dalam merupakan salah satu Desa yang ada di Kecamatan Delta Pawan Kabupaten Ketapang, Provinsi Kalimantan Barat. Secara geografis, Desa Sukabangun Dalam memiliki luas wilayah 2.310,5 ha/  dengan topografi berupa dataran rendah seluas 10 ha/  dan aliran sungai seluas 8 ha/ . Masalah kesehatan masyarakat di Desa Sukabangun Dalam yang teridentifikasi meliputi tingginya kejadian Rumah tidak memiliki tempat Pembuangan akhir tinja (Septik Tank) dan jamban sehat (37%). Hal ini dapat meningkatkan risiko penyakit berbasis lingkungan. Target kegiatan adalah penerapan IPTKES melaui kegiatan program jamban percontohan sehingga dapat dipergunakan sebagai sarana pembuangan tinja keluarga. Pelaksanaan kegiatan dilakukan bertahap, dimulai dari pendataan jamban sehat keluarga, penyuluhan mengenai jamban sehat, melalui Praktek Belajar lapangan berbasis Kuliah Kerja Usaha, pelaksanaan tabungan jamban (tanjan) dan komitmen bersama melakukan renovasi jamban umum desa menjadi jamban percontohan
Estabilidade aeróbica de farelo de glúten de milho úmido aditivado com timol
Authors: PEREIRA L. M. , SOUZA C. M. M. , VOLPI D. , VIGNE G. L. D. , MASTELARO A. P. , TAVARES Q. G. , ZOPOLLATTO M.
Published: December 2021

A utilização de coprodutos na nutrição animal tem interesse abrangente, desde a redução de custo com alimentos, a não competição por alimentos para humanos, além de aspectos ambientais. Devido a esse fato, o objetivo desse trabalho foi avaliar a estabilidade aeróbica de farelo de glúten úmido aditivado com diferentes doses de timol. Foram utilizadas 5 doses de timol (D1 (50 mg/kg/ matéria verde), D2 (150 mg/kg/ matéria verde, D3 (250 mg/kg/ matéria verde), D4 (350 mg/kg/ matéria verde), D5 (450 mg/kg/ matéria verde), além do tratamento controle (sem a utilização de aditivos). O experimento foi inteiramente casualizado com 5 repetições por tratamento, totalizando 30 unidade experimentais. Os resultados obtidos foram submetidos a ANOVA e ao teste de Tukey a 5% de significância. Foram mensurados valores de matéria seca (MS), pH, estabilidade aeróbia (EA), perdas de matéria seca (PMS), temperatura máxima (TMAX) e horas para a temperatura máxima (HTMAX). A estabilidade aeróbia, PMS, MS, TMAX e HTMAX não apresentaram diferença estatística entre os tratamentos (p<0,05). As diferentes doses de timol não foram suficientes para aumentar a EA e reduzir as PMS. Com base nesses achados, a utilização de timol não é recomendada para melhorar a estabilidade aeróbia de farelo de glúten úmido.
Importância econômica relacionada a produção de maracujá amarelo (Passiflora edulis f. flavicarpa) no nordeste
Authors: SILVA W. J. S. , AZEVEDO E. M. , LISBÔA C. G. C.
Published: December 2021

A fruticultura é um dos principais subsetores da agricultura, tendo em vista que essa atividade consiste em uma ferramenta de captação e distribuição de renda. Objetivou-se com essa pesquisa, apresentar a produção do fruto do maracujá no Nordeste brasileiro, destacando a sua importância para a economia. O trabalho ocorreu através de levantamentos sobre a produção e comercialização do fruto nos estados da região nordeste, por meio de materiais anteriormente publicados. Independentemente de ser um país que se mais produz e consome o maracujá, o Brasil depende de algumas limitações que prejudica uma grande produção. Do fruto in natura, almejam-se encontrar frutos que tenham uma aparência vistosa, de calibres maiores e com baixo índice de acidez e já na indústria a busca se dá por encontrar frutos que possuam alto rendimento de polpa e um alto teor de sólidos solúveis. Os subprodutos (cascas e sementes) produzidos no processamento do suco do maracujá correspondem a cerca de 70% do peso do fruto, representando um problema de resíduo agroindustrial. Conclui-se que o fruto é altamente rico em nutrientes e que pode ser utilizado desde a polpa até a casca e que seus subprodutos fornecem geração de renda, movimentando e enriquecendo o mercado nordestino no setor da fruticultura.
O poder antioxidante de compostos fenolicos presente em espécies vegetais e sua ação sobre a pressão arterial
Authors: CARMONA T. B. , LOPES I. F. M. , OLIVEIRA D. B. , ANTUNES F.
Published: December 2021

A disfunção endotelial leva a hipertensão arterial, doença que enfrenta complicações em seu tratamento tradicional. O presente estudo busca exibir o efeito positivo que moléculas antioxidantes fenólicas contidas em extratos vegetais exercem sobre a vaso regulação, contribuindo assim para que sejam desvendados novos alimentos funcionais e possíveis fitofármacos. Para tanto foi necessário um estudo sobre o mecanismo de controle do tônus vascular, de como as ROS (espécies reativas ao oxigênio) o desequilibram e como através de antioxidantes fenólicos presentes vegetais é possível se obter a profilaxia e tratamento à essa disfunção. As pesquisas bibliográficas realizadas indicaram uma vaso proteção, algo fundamental para a circulação, utilizando antioxidantes fenólicos vegetais que atuam como agentes vaso regulatórios, o que incentiva a alimentação saudável e desenvolvimento de possíveis fitofármacos.
Uso do fruta-pão como revestimento comestível para conservação de melão minimamente processado
Authors: SILVA R. S. , SANTOS A. F. , LIMA M. E. P. , OLIVEIRA A. S. , SOUSA S. M. F. , NOGUEIRA L. P. S. , NETO M. S. M.
Published: December 2021

Uma tecnologia que pode ser empregada para o aproveitamento do fruta-pão é a extração do amido para utilização como recobrimentos comestíveis em frutas e hortaliças, que visa aumentar a vida útil dos frutos, mantendo suas características de qualidade. Diante disso, objetivou-se com este trabalho utilizar o amido extraído do fruta-pão como recobrimento comestível em melão ‘pele de sapo’ minimamente processado, avaliar a eficácia do recobrimento e o uso do armazenando refrigerado na qualidade pós-colheita dos frutos minimamente processados. Foram aplicando então os seguintes tratamentos: Trat.1: água destilada + PVC e Trat.2: (2% de Amido do Fruta-pão + 2% de Glicerol + PVC) que foram armazenados em BOD a 3 °C (802%UR) durante 10 dias. As avaliações foram realizadas a partir do tempo zero (+1) (após o processamento e aplicação dos tratamentos), em períodos regulares com intervalo de 2 dias durante o armazenamento (0, 2, 4, 6, 8 e 10 dias) para as características físicas, físico-químicas e de compostos bioativos. O experimento foi então conduzido em delineamento inteiramente casualizado em fatorial experimental 2 x 6, com três repetições. O estudo forneceu evidências de que os melões minimamente processados, submetidos ao tratamento com 1% de cloreto de cálcio e revestido com 2% Amido do Fruta-pão 2% de Glicerol + PVC apresentaram resultados satisfatórios quanto aos teores de ácido ascórbico, sólidos solúveis, flavonoides e compostos fenólicos, sendo o tratamento aplicado e o revestimento utilizado considerado uma estratégia excelente para manter a qualidade do produto e o conteúdo dos seus nutrientes.