bluuebunny/crossref_metadata_2025 huggingface dataset:
Risk Factors for Shoulder Injuries in Water Polo: a Cohort Study
Authors: Croteau Félix , Paradelo David , Pearsall David , Robbins Shawn
Published: August 2021

Background

Very limited investigations have been conducted exploring risk factors for injury in water polo players. A gap remains in the literature regarding identification of variables that should be considered as part of player screening evaluations.

Purpose

To estimate whether previous injury, changes in strength, range of motion (ROM) or upward scapular rotation (UR) are related to shoulder injuries in water polo players.

Study Design

Descriptive cohort study

Methods

Thirty-nine international-level players participated (19 males). Shoulder internal (IR) and external rotation (ER) peak torque was measured using an isokinetic device (CONtrex MJ). Shoulder ROM was measured passively using standard goniometry. Scapular UR was measured using a laser digital inclinometer. At baseline players were divided into groups: those with and without previous shoulder injuries. Independent t-tests and Mann-Whitney U tests were used to compare the study variables between groups. After nine months, a second analysis compared the same athletes, who were then grouped by those who had or had not sustained new injuries. Effect sizes were calculated with a Hedge’s g. Chi squared analysis compared proportion of injured players with and without previous injury.

Results

Eighteen participants (46%) had previous injuries at baseline. Players with a previous injury showed higher peak torques for IR (0.62±0.15 vs 0.54±0.13N/kg, p=0.04, g=0.60); larger loss of IR ROM (9.9±9.1 vs 4.1±7.5°, p=0.04, g=0.68), but no statistical difference in UR (p=0.70). After nine months, there were no statistical strength differences between groups. Loss of IR ROM was significantly higher in the injured group (9.8±9.8 vs 4.0±6.7°, p=0.04, g=0.68), as well as UR (13.0±3.0 vs 10.4±3.3°, p=0.01, g=0.81). History of previous injury was significantly related to developing a new injury (OR 6.5, p=0.02). Logistic regression found previous injury and UR most important contributors to injury risk.

Conclusions

Previous injury, changes in IR ROM and UR are related to new shoulder injuries in water polo, but further variables such as rest, training load, or psychosocial factors may explain the incidence of new injuries.

Level of Evidence

Level 3
Serial Within-Session Improvements in Ankle Dorsiflexion During Clinical Interventions Including Mobilization-With-Movement and A Novel Manipulation Intervention – A Case Series
Authors: Abassi Mohsen , Whiteley Rod
Published: August 2021

Background

Persisting reductions in ankle dorsiflexion range of motion are commonly encountered clinically and seen to be associated with adverse outcomes after ankle and other lower extremity injuries. Accordingly improving identified deficits is a common goal for rehabilitation; however, little data exists documenting any improvement related to interventions in these patients.

Purpose

To document the change in dorsiflexion range of motion after stretching and mobilization-with-movement and exercise and a novel manipulation intervention in a population of injured athletes.

Design

Case series in 38 consecutive injured athletes with persisting reductions in ankle dorsiflexion range of motion (42 “stiff” ankles, 34 uninjured) in an outpatient sports physiotherapy clinic.

Method

During a single treatment session, two baseline measurements of weight-bearing dorsiflexion were taken at the start of the session to establish reliability and minimum detectable change, and then the same measures were performed after stretching and a mobilization-with-movement intervention, and again after clinical exercise and a novel manipulation which was applied on both ankles.

Results

Excellent reliability was demonstrated (ICC2,1>0.93, MDC=3.5°) for the dorsiflexion measure. Statistically significant (p<0.01), but clinically meaningless improvements were seen after stretching and the mobilization-with-movement intervention on the injured and uninjured legs (1.9° and 1.4° respectively) with greater improvements seen after exercise and the subsequent manipulation (6.9° and 4.7°).

Conclusions

The relatively simple clinical exercise and manipulation intervention program was associated improvement in dorsiflexion range of motion in this cohort with persisting ankle stiffness. The interventions described largely restored range of motion consistent with baseline levels of the uninjured ankles. Improvements were also seen in the uninjured ankles following intervention.
The Role of Fatigue in Return to Sport Testing Following Anterior Cruciate Ligament Reconstruction
Authors: Tallard Justin C , Hedt Corbin , Lambert Bradley S , McCulloch Patrick C
Published: August 2021

Background

Fatigue may play a role in anterior cruciate ligament (ACL) injury, but has not been incorporated into objective test batteries for return to sport decisions following ACL reconstruction (ACLR) surgery. The effect of fatigue on muscle function and performance following surgery and rehabilitation has been poorly studied.

Purpose/Hypothesis

The purpose of this study was to assess the effect of fatigue on performance of various hop tests used in clinical rehabilitation settings by examining LSI scores. The authors hypothesized that participants will have worse limb symmetry index scores following the fatigue protocol and that the operative limb (ACLR) will have a greater decline in function than the non-operative limb (CON).

Study Design

Cross-Sectional Study.

Methods

Participants (n=21 [Male = 15, Female = 6]; AGE = 24.6 ± 9.3) were at least six months post ACLR and in rehabilitation. Testing was performed over two separate sessions in either a non-fatigued (NFS) or fatigued state (FS). In the FS, individuals performed a series of exercises to exhaust muscular endurance, strength, and power systems, after which they performed as battery of seven hop tests (single hop for distance, triple hop for distance, crossover hop for distance, 6-meter timed hop, lateral rotation hop for distance, medial rotation hop for distance, and vertical jump for height). A 2(limb) x 2(time) ANOVA was used to compare limbs between each state.

Results

Differences between limbs (CON vs ACLR) were observed for all hop tests in the NFS whereby the ACLR limb was observed to have reduced performance (↓5.4-9.1%, p <0.05). When tested in the FS, significant differences in performance between limbs remained for only the crossover (↓4.9%), medial rotation (↓7.1%), lateral rotation (↓5.5%), and vertical hop (↓10.0%)(p<0.05). When comparing the NFS and FS states, only the CON limb was observed to have significant decreases in performance of the Triple Hop (↓7.4%), Crossover (↓8.7%), and Lateral Rotation (↓5.2%)(p<0.05).

Conclusions

Following ACL reconstruction, there appears to be a greater loss in jump performance in the CON limb in the FS. These findings suggest it may be crucial to consider and assess the endurance of both limbs rather than just the ACLR limb when determining readiness for return to play.

Level of Evidence

Level 3
The Systemic Effects of Blood Flow Restriction Training: A Systematic Review
Authors: Miller Bradley C , Tirko Alexander W , Shipe Justin M , Sumeriski Olivia R , Moran Kelley
Published: August 2021

Background

Blood flow restriction (BFR) training has been reported to have significant benefits on local skeletal muscle including increasing local muscle mass, strength, and endurance while exercising with lower resistance. As a result, patients unable to perform traditional resistance training may benefit from this technique. However, it is unclear what effects BFR may have on other body systems, such as the cardiovascular and pulmonary systems. It is important to explore the systemic effects of BFR training to ensure it is safe for use in physical therapy.

Purpose

The purpose of this study was to systematically review the systemic effects of blood flow restriction training when combined with exercise intervention.

Study Design

Systematic review.

Methods

Three literature searches were performed: June 2019, September 2019, and January 2020; using MedLine, ScienceDirect, PubMed, Cochrane Reviews and CINAHL Complete. Inclusion criteria included: at least one outcome measure addressing a cardiovascular, endocrinological, systemic or proximal musculoskeletal, or psychosocial outcome, use of clinically available blood flow restriction equipment, use of either resistance or aerobic training in combination with BFR, and use of quantitative measures. Exclusion criteria for articles included only measuring local or distal musculoskeletal changes due to BFR training, examining only passive BFR or ischemic preconditioning, articles not originating from a scholarly peer-reviewed journal, CEBM level of evidence less than two, or PEDro score less than four. Articles included in this review were analyzed with the CEBM levels of evidence hierarchy and PEDro scale.

Results

Thirty-five articles were included in the review. PEDro scores ranged between 4 and 8, and had CEBM levels of evidence of 1 and 2. Common systems studied included cardiovascular, musculoskeletal, endocrine, and psychosocial. This review found positive or neutral effects of blood flow restriction training on cardiovascular, endocrinological, musculoskeletal, and psychosocial outcomes.

Conclusions

Although BFR prescription parameters and exercise interventions varied, the majority of included articles reported BFR training to produce favorable or non-detrimental effects to the cardiovascular, endocrine, and musculoskeletal systems. This review also found mixed effects on psychosocial outcomes when using BFR. Additionally, this review found no detrimental outcomes directly attributed to blood flow restriction training on the test subjects or outcomes tested. Thus, BFR training may be an effective intervention for patient populations that are unable to perform traditional exercise training with positive effects other than traditional distal muscle hypertrophy and strength and without significant drawbacks to the individual.

Level of Evidence

1b
Особливості гемодинаміки у пубертатний та постпубертатний етапи онтогенезу людини
Authors: Станішевська Т. І. , Горна О. І. , Горбань Д. Д.
Published: August 2021

Стаття присвячена вивченню особливостей вікової динаміки індивіду- ально-типологічних показників мікроциркуляції крові на пубертатному і постпубертатному періодах розвитку організму людини. Дослідження проводилися на базі лабораторії фізіологічних досліджень. У дослідженні взяли участь 63 умовно здорові досліджувані за добровільною згодою віком 14–15 та 18–19 років. З метою вивчення функціонального стану мікроцир- куляції крові в організмі людини був використаний метод лазерної доппле- рівської флоуметрії. В осіб чоловічої та жіночої статей на вивченому етапі онтогенезу спостерігали збереження гетерохронності за величинами пара- метрів мікроциркуляції крові та середнього квадратичного відхилення тка- нинного кровотоку. Так, на одному віковому відрізку були вищими показ- ники у досліджуваних жіночої статі, а на іншому – в осіб чоловічої статі. Середні величини показників мікроциркуляції крові у хлопців та дівчат одного віку достовірно не відрізнялися. Комп’ютерна програма обробки дозволяла визначити такі характеристики мікроциркуляції, як: параметр мікроциркуляції, середнє квадратичне відхилення реєстрованих доппле- рівських сигналів та коефіцієнт варіації. В обстежених пубертатного та постпубертатного віку обох статей виявлено три типи мікроциркуляції. Аперіодична ЛДФ-грама відповідала нормоемічному типу мікроцирку- ляції крові, що характеризується збалансованістю механізмів вазомотор- ної, метаболічної та нейрогенної регуляції мікроциркуляції за частотою і амплітудою. Для синусоїдальної ЛДФ-грами, що відповідає гіпоемічному типу мікроциркуляції крові, характерний низький показник параметру мікроциркуляції, зумовлений зниженням вазомоторних механізмів у регу- ляції. Монотонна ЛДФ-грама гіперемічного типу характеризувалася висо- ким параметром мікроциркуляції, переважанням пасивних механізмів, дихальних і серцевих ритмів у регуляції мікроциркуляції. Частота спів- відношення різних мікроциркуляторних типів приблизно однакова у осіб жіночої та чоловічої статі і безпосередньо залежить від їхнього віку.
Токсичність іонів важких металів як показник чутливості і стійкості рослин до абіотичних стресів: огляд
Authors: Сергєєва Л. Є. , Хоменко Л. О. , Броннікова Л. І.
Published: August 2021

Іони важких металів (ІВМ) знаходяться серед найбільш токсичних ксенобіотиків, котрі спричиняють як загальні, так і специфічні ураження організмів. Особливо це стосується елементів, токсичних у залишкових кількостях. Одні з таких ІВМ є предметом різнобічного вивчення (іони Cd2+), водночас інші викликають зацікавлення завдяки своїм особливим характеристикам (іони Ba2+). Часто дія ІВМ підсилюється впливом природних абіотичних факторів. Зроблено огляд загальних аспектів патологічної дії ІВМ. Розглядається використання іонних, протеомних, метаболічних складників; підкреслюється роль їхніх взаємозв’язків для встановлення генетичних детермінант стійкості. Звертається увага на спільні прояви адаптації до ІВМ та осмотичних стресів – засолення та водного дефіциту. Розглянуто токсичну дію іонів Cd2+ і Ba2+. Пропонується ідея використання іонів Cd2+ і Ba2+ у клітинній селекції для виділення форм, стійких до водного та сольового стресів. Наведено приклади отримання клітинних ліній рослин із застосуванням летальних для клітинних культур доз іонів. Варіанти відзначались комплексною стійкістю як до іонів селекції, так і до осмотичних стресів. Життєдіяльність за стресових умов контролювалась змінами метаболому та протеому і проявлялась у збільшенні клітинної маси, збереженні водного статусу, акумуляції вільного проліну, цукрів. При цьому параметри стійкості не втрачались зі збільшенням строку вирощування, а також зберігались у разі зміни умов культивування. Водночас метаболічні показники змінювались у відповідності до змін умов культивування. Такі характеристики, а також їхня хронологія можуть свідчити на користь існування перехресних сигнальних шляхів, котрі поєднують реакції стійкості до ІВМ і осмотичних стресів. Рослини, регенеровані із таких клітинних ліній, відзначались підвищеним рівнем осмостійкості. Нетрадиційний погляд на проблему розширює рамки традиційних підходів у разі створення вихідного матеріалу.
Pengujian Kinerja Pompa Sentrifugal Multistage Berkapasitas 118,5 KW pada PLTP Berdasarakan Standar ISO 9906
Authors: Hidayat Wahyu , Biksono Damawidjaya , Zulpian Dadan
Published: August 2021

AbstrakPengujian unjuk kerja pompa sentrifugal multistage berkapasitas 118,5 kW di kawasan Pembangkit Listrik Tenaga Panas Bumi (PLTP) daerah Jawa Barat saat ini akan menyesuaikan prosedur standar. Standar pengujian pompa diterapkan pada proses pengujian pompa dengan tujuan nilai hasil pengujian valid. Nilai head dan debit yang didapat dari pengujian dibandingkan dengan hasil pengujian sebelum penerapan standar. Pengujian pompa sentrifugal menerapkan metode pengujian lapangan dengan menerapkan standar ISO 9906-2012. Standar ISO 9906-2012 adalah panduan baku pengujian pompa rotodinamik. Dari hasil pengujian, didapatkan kurva pompa sentrifugal multistage debit maksimal 116,64 m3/h pada head 275,13 m. Pada data spesifikasi kapasitas pompa sebesar 108 m3/jam dan head total sebesar 300 m. Hal ini berarti prosedur pengujian pompa ISO 9906-2012 dapat memungkinkan kita untuk melihat kinerja pompa aktual.Kata kunci: pompa sentrifugal, pengujian lapangan, uji kinerja pompa, ISO 9906Â Â AbstractPerformance test of multistage centrifugal pump at geothermal power plant area around west java is about to adapt standard procedure. Pump testing standards are applied during pump performance test in order to valid test result values. Head and flowrate value from current test compared with previous test result before standard are applied. Pump performance test use field test method by applying ISO 9906-2012 standard. ISO 9906-2012 standard is a normative guidance for rotodynamic pump testing. The test result shows multistage centrifugal pump curve maximum flowrate is 116,64 m3/h at total head 275,13 m. Pump specification sheet shows that maximum capacity is 108 m3/h and total head 300 m. It indicates that ISO 9906-2012 standard pump testing procedure allow us to determine actual pump performance.Kata kunci: Centrifugal pump, field test, performance test, ISO 9906
Hubungan antara Konsep Diri, Regulasi Diri dan Tingkat Religiusitas dengan Penyesuaian Diri pada Santri Pondok Pesantren Al-Berr Pasuruan
Authors: Poerwanto Agus , Murdiyani Hetty
Published: August 2021

Tujuan penelitian ini adalah untuk mengetahui hubungan antara konsep diri, regulasi diri dan tingkat religiusitas dengan penyesuaian diri pada santri Pondok Pesantren Al Berr Pasuruan. Penelitian ini dilakukan pada santri baru Pondok Pesantren Al-Berr dengan jumlah sampel sebanyak 80 orang yang dipilih menggunakan teknik purposive random sampling. Alat pengumpulan data menggunakan kuesioner model skala Likert yang terdiri dari skala konsep diri, skala regulasi diri, skala tingkat religiusitas dan skala penyesuaian diri. Metode analisis data menggunakan teknik analisis regresi berganda. Berdasarkan hasil analisis dengan satu variabel terikat yaitu penyesuaian diri dan tiga variabel bebas yaitu konsep diri, regulasi diri, dan tingkat religiusitas diperoleh nilai F=15.358, dengan nilai Rx1x2x3 sebesar 0,614 dan nilai p = 0,000 (p<0,05) maka dapat disimpulkan bahwa ada hubungan yang signifikan konsep diri, regulasi diri, tingkat religiusitas dengan penyesuaian diri pada santri pondok pesantren Al Berr Pasuruan.
Hubungan Self Confidence dan Self Awareness dengan Komunikasi Efektif pada Mahasiswa
Authors: Qowimah Sirri Nahzatun , Almahira Kays Jiddan , Rahma Delvina Alifah , Satrio Akmal Budi , Nuzul Hanum Miftahun , Puteri Shofwatun Nada Yuliana , Lusiana Nova , Andyarini Esti Novi
Published: August 2021

Tujuan dari penelitian ini adalah mengetahui hubungan antara self confidence dan self awareness terhadap variabel komunikasi efektif, aspek tersebut menjadi hal yang sangat dibutuhkan bagi SDM di era industri saat ini. Sampel dalam penelitian ini adalah 100 Mahasiswa Psikologi UINSA yang masih aktif dalam tahun ajaran 2020-2021. Analisa data yang digunakan menggunakan Regresi Linier Berganda. Hubungan self confidence dan self awareness dan komunikasi efektif adalah sangat signifikan, terlihat dari nilai F sebesar 17,268 dengan nilai p  adalah 0,000 (< 0,05). Variabel self confidence dan self awareness masing-masing memiliki nilai koefisien korelasi 0,393 dan 0,453 terhadap variabel Komunikasi. Hasil uji hipotesis didapatkan kesimpulan bahwa self confidence dan self awareness berhubungan positif terhadap variabel komunikasi efektif dan berdasarkan nilai korelasi dapat dikatakan bahwa self awareness lebih berpengaruh terhadap komunikasi efektif. R Square sebesar 0,263 menunjukkan self confidence dan self awareness secara simultan memberikan kontribusi dalam mempengaruhi komunikasi efektif sebesar 26,3%, sedangkan sisanya 73,7% dipengaruhi oleh variabel atau faktor lain.
Knowledge and Skills Sets for Telecare Service Staff in the Context of Digital Health
Authors: Fisk Malcolm John , Woolham John , Steils Nicole
Published: August 2021

Telecare services have an established place within the United Kingdom. Through using online technologies to help mostly older people to remain at home, they are recognised as having a support role for health as well as social care. This positions telecare services within the broader realm of ‘digital health’. As that position becomes more embedded, it poses questions about the nature of tasks that are (or should be) undertaken by telecare staff, and regarding the knowledge and skills that are required. A convergence of telecare and telehealth services is indicated together with a need for some kind of accord or accommodation. This paper summarises the United Kingdom policy context; references the technologies that are provided by telecare services or can be linked to them; notes briefly the impact of the COVID-19 pandemic; and proposes six knowledge and skills sets. Outcomes of the UTOPIA study undertaken in England from 2016 to 2017 are drawn upon: this study provided important information from over 100 local authority telecare managers.
Mobile Health (mHealth) in the Developing World: Two Decades of Progress or Retrogression
Authors: Istepanian Robert S , Kulhandjian Michel , Chaltikyan Georgi
Published: August 2021

Mobile healthcare, or mHealth, is one of the key pillars of information and communication technologies for healthcare that consists of telemedicine, telehealth, eHealth, and mHealth. In the past two decades, mobile health has become a transformative concept for healthcare delivery innovations on a global scale. The success was based on the market-driven strategies that utilised the advances in mobile communications, computing, and sensor technologies, especially in recent years. Those market-driven mobile health systems were also closely associated with the global proliferation of smartphones, and based on the correlated usage principle of the smartphone applications for healthcare and wellbeing. However, the global commercial success of the smartphone-based mHealth model was not widely translated into successful scaled-up and tangible healthcare benefits, especially in low- and-middle income countries, compared to the consumer mobile health markets. The numerous healthcare challenges in the developing world remained largely untackled by the existing mobile health systems and models. The much-hyped transformative benefits of these systems remain largely unfulfilled. For two decades since the inception of this concept, the majority of the population in resource-limited healthcare settings still remain in poorer health and live in worsened conditions, with limited if any access to basic healthcare services. The much-hyped mobile health services that promised transforming these fragile and limited healthcare conditions, did not come to wider fruition globally. The COVID-19 pandemic, with its devastating human and economic impact worsened this status. An overview of the origin and the basic principles of mobile health, its current landscape and status in the developing world is presented. The impact of the smartphone-centric model that dominated the landscape of mobile health systems in these countries is discussed, and a critical view on the limitation of this mobile health model adopted widely in these settings is provided.
COVID-19 as a Catalyst for Telehealth Growth in India: Some Insights
Authors: Chakraborty Imon , Ilavarasan P. Vigneswara , Edirippulige Sisira
Published: August 2021

Telehealth is being rapidly embraced to deal with the COVID-19 health crisis across the world. Despite being a biggest exporter of software services, India has not been a big adopter of telehealth. However, the COVID-19 pandemic has compelled the Indian government to assess the current assets and facilitate the establishment and use of telehealth throughout the country. Different telehealth initiatives are being undertaken in the existing public and private healthcare institutions and patients are increasingly embracing the services. We briefly highlight the potential role played by the start-ups in addressing the challenges.
KAJIAN MOLEKULER PADA PROBIOTIK ASAL AIR SUSU IBU DALAM SINTESIS EKSOPOLISAKARIDA (EPS)
Authors: Alfaruqi Hamiyawati Qoimatu Dini , Anindita Nosa Septiana , Bimantara Arif
Published: August 2021

Molecular Studies on Probiotic of Human Breast Milk in the Synthesis of Exopolysaccharide (EPS) 
The glucosyltransferase (gtf) gene has an important role in exopolysaccharide (EPS) synthesis in probiotic bacteria. The EPS produced is associated with the adhesion ability of bacteria to the intestinal mucosa. Therefore, the gtf gene can be used as a parameter in the selection of potential probiotic through a molecular approach. This study was conducted to determine the presence of the gtf gene in probiotic from human breast milk using PCR technique. The methods in this study include the following: reculture of probiotic isolates, DNA isolation, amplification of the 16S rRNA gene using universal primers (pA and pB), amplification of specific LAB primers (LABfw and LABrv), specific primary design for the gtf gene, and the amplification of the gtf gene. The results of 16S rRNA gene amplification using universal primers obtained the amplicons of 500-1,000 bp in size. The results of amplification using specific LAB primers obtained an amplicon of about 700 bp in all isolates. The results of amplification of the gtf gene using a specific primer produced an amplicon of 325 bp in all isolates. Based on this study, it was concluded that 16 probiotic isolates from human breast milk were proven to have the gtf gene.
Gen glukosiltransferase (gtf) memiliki peran penting dalam sintesis eksopolisakarida (EPS) pada bakteri probiotik. EPS yang diproduksi berhubungan dengan kemampuan adhesi bakteri pada mukosa usus. Oleh karena itu, gen gtf dapat dijadikan sebagai salah satu parameter dalam seleksi probiotik potensial melalui pendekatan molekuler. Penelitian ini dilakukan untuk mengetahui adanya gen gtf pada probiotik asal air susu ibu (ASI) menggunakan teknik PCR. Metode pada penelitian ini meliputi: reculture isolat probiotik, isolasi DNA, amplifikasi gen 16S rRNA menggunakan primer universal (pA dan pB), amplifikasi primer spesifik BAL (LABfw dan LABrv), desain primer spesifik untuk gen gtf dan amplifikasi gen gtf. Hasil amplifikasi gen 16S rRNA menggunakan primer universal diperoleh amplikon berukuran antara 500-1.000 bp. Adapun hasil amplifikasi menggunakan primer spesifik BAL diperoleh amplikon berukuran sekitar 700 bp pada seluruh isolat. Hasil amplifikasi gen gtf menggunakan primer spesifik menghasilkan amplikon berukuran sekitar 325 bp pada seluruh isolat. Berdasarkan penelitian ini dapat disimpulkan bahwa 16 isolat probiotik asal ASI terbukti memiliki gen gtf.
Evolution-revolution-devolution
Authors: Ducas Ada , Gottschalk Tania , Cohen-Baker Analyn
Published: August 2021

From 1993 to 2009 the University of Manitoba (UM), the Regional Health Authorities of Manitoba (RHAM), and the Manitoba Health Department signed affiliation agreements that changed the access to knowledge-based information for health professionals. These agreements transferred the management and delivery of library service from the home organizations to the UM Libraries. This three-part paper describes the events that led to the evolution of change in health information access in Winnipeg, subsequent revolutionary changes in the nature of the services, and their eventual devolution due to a significant array of unexpected challenges.
ANALISIS EKONOMI BAGAN PERAHU DI KECAMATAN PONELO KEPULAUAN
Authors: Oliii Muh. Yasin Umsini Putra , Buheli Sintia , Noor Sri Yuningsih
Published: August 2021

Sumberdaya perikanan di Kabupaten Gorontalo Utara adalah salah satu potensi yang dapat dijadikan sebagai penopang perekonomian masyarakat khususnya bagi masyarakat yang memiliki profesi sebagai nelayan. Kabupaten Gorontalo Utara memiliki sektor perikanan yang didominasi oleh perikanan skala kecil, hat tersebut ditandai dengan banyaknya penggunaan alat tangkap sederhana yang digunakan oleh nelayan. Bagan perahu merupakan satu dari banyaknya alat tangkap yang banyak dioperasikan oleh nelayan tradisional di Kecamatan Ponelo Kepulauan. Riset ini dilakukan untuk menganalisis keuntungan yang diperoleh dari pengoperasian alat tangkap bagan perahu di Kecamatan Ponelo Kepulauan, Kabupaten Gorontalo Utara. Metode yang digunakan dalam penelitian ini adalah metode survei dengan studi kasus dan dianalisis secara deskriptif. Analisis ekonomi yang digunakan untuk menghitung pendapatan usaha perikanan tangkap pada bagan perahu yaitu analisis total biaya, analisis pemasukan dan analisis keuntungan. Hasil riset menunjukkan total biaya yang dibutuhkan bagan perahu lampu putih dan lampu biru sebesar Rp3.142.000 yang didapat dari biaya tetap yang ditambahkan dengan biaya variabel. Jumlah pendapatan yang didapatkan oleh nelayan bagan perahu lampu biru lebih yaitu sebesar Rp34.005.000 sedangkan pendapatan bagan perahu lampu biru sebesar Rp31.870.000. Pendapatan atau keuntungan akhir yang didapat oleh nelayan bagan perahu selama melakukan 8 kali trip yaitu bagan perahu lampu putih sebesar Rp14.284.000 dan bagan perahu lampu biru sebesar Rp15.351.500.

Kata kunci:        alat tangkap, bagan, nelayan, keuntungan
Analisis Sistem Distribusi Air Bersih di Perumahan Ciomas Permai Kabupaten Bogor Jawa Barat
Authors: Fauziah Kiki Rizky , Pandjaitan Nora , Karunia Titiek Ujianti
Published: August 2021

Water distribution systems are often problematic in terms of quantity, pressure, continuity and quality. The research aimed to analyze water distribution system of PDAM Tirta Kahuripan Kabupaten Bogor in Ciomas Permai Residence. The research was conducted by collecting primary and secondary data. Analysis of clean water distribution system was carried out using the EPANET 2.0. Ciomas Permai Residence was located in zone 6 of PDAM Tirta Kahuripan servive areas. The result showed that the quality of the distributed water was in accordance with the applicable standard and continuous for 24 hours even though there were significant discharge differences during peak hours. Based on the measurement on Sunday and Monday, the minimum discharge were 14.4 l/sec and 13.8 l/sec respectively, higher than customer requirements of 7.34 l/sec, The water distribution pressure ranged from 0.7 - 1.35 bar. The result of clean water distribution simulation using EPANET 2.0 showed that the velocity of water and headloss were not accordance with the applicable standards.
Analisis Analisis Neraca Air di Pulau Jawa-Bali sebagai Upaya Antisipasi Krisis Air
Authors: Chairunnisa Nurul , Arif Chusnul , Perdinan  , Wibowo Arif
Published: August 2021

Water is one of the basic necessities used by living things on this earth. Along with the population growth with climate change, there are several cases of water crisis in Java and Bali, especially in the dry season. The purpose of this research is to project water demand and availability based on climate change scenarios, develop an analysis model for the impact of climate change on the water sector based on the water balance, and calculate environmental economic losses resulting from water deficit losses. The type of scenario used in climate analysis is RCP (Representative Carbon Pathway) 4.5 with two types of models. Provinces experiencing very critical water conditions in the 2021-2050 period using the CSIRO model are DKI Jakarta, East Java and Bali, with water criticality indexes of 296.25%, 113.88% and 123.64%, with a water deficit loss of IDR 1.2 billion, IDR 7.93 billion and IDR 0.87 billion. Whereas with the MIROC model, the areas that have very critical water conditions are DKI Jakarta Province with a water criticality index of 220.36%, with a water deficit loss of IDR 0.42 billion.
DIVERSITY AND DISTRIBUTION OF HERPETOFAUNA IN INSTITUT TEKNOLOGI SUMATERA CAMPUS AREA
Authors: Tohir Rizki Kurnia , Siregar Diyanti Isnani
Published: August 2021

Land use change of rubber plantation into ITERA campus area has led to changes in the ecology of the area. Amphibians and reptiles, referred as Herpetofauna, are categorized as wild animals that are sensitive to environmental changes and are considered as bio-indicators. Wild conservation activities including herpetofauna is an essential part to the forest campus concept in ITERA. The objective of the study is to analyze the diversity and distribution of herpetofauna. This applied Visual Encounter Survey (VES) with Time Constraint Method and Glue Trap technique. This research was carried out on six observation path and 180 traps. The ecological index analysis consisted of species diversity, evenness, richness, abundance, and community similarity. Twenty-two herpetofauna species were found, including nine amphibians (5 families) and 13 reptiles (9 families). There was one reptile species with vulnerable conservation status and 3 reptile species included in CITES appendix II. The diversity index value (H ') was 2.29; species evenness (E) value was 0.74; and species richness value was 3.33. Amphibian species with the highest abundance was Fejervarya cancrivora 1.78 individual/hour of observer, while from the reptile species was Hemidactylus frenatus 0.35 individual/hour of observer. There were 550 herpetofauna encounters, where 8 species could be found on all transects and 6 species could only be found on one transect. This research showed that the condition of ITERA habitat currently supported herpetofauna's life and needed conservation activities to maintain herpetofauna diversity. 

Key words: distribution, diversity, herpetofauna, ITERA
LOCAL ETHNIC MALAY COMMUNITY KNOWLEDGE IN TRADITIONAL MEDICINE UTILIZATION AND ITS CONSERVATION STRATEGY IN EAST BELITUNG REGENCY, INDONESIA
Authors: Henri Henri , Erpandi Erika
Published: August 2021

Belitung Malay is the largest ethnic group in the East Belitung Regency which is rich in biodiversity. In daily life, the people of East Belitung utilize biological resources for various necessities of life, including the utilization for health maintenance and treatment. However, along with the changing times and technological developments in the health sector, there are some changes in society in the use of biodiversity as traditional medicine. This study aims to examine the knowledge and perceptions of the Belitung Malay ethnic community on the use of traditional medicines. The method used in this study is a semi-structured interview with ethnographic techniques. Informants were selected using purposive sampling, in which they were considered to have a lot of knowledge about traditional medicine and its processing, such as traditional leaders, tribal chiefs, village heads, herbalists, and massage workers. The data were analyzed using descriptive analysis. The results of the interview show that people still use traditional medicine a lot. Traditional medicine is sourced from plant and animal raw materials. Community trust in traditional medicines is still quite high as indicated in the use of medicinal plants based on use values ​​reaching 0.64 and animal-sourced traditional medicines of 92.59. Even though the use-value is high for the Malay ethnic community, it seems that the existence of traditional medicinal materials has become increasingly difficult and scarce to obtain. In this case, to obtain these medicinal ingredients, people must go far into the forest. 

Key words: East Belitung, knowledge, medicinal animals, medicinal plants, traditional healers
MAPPING THE DISTRIBUTION OF SALTWATER CROCODILE (Crocodylus porosus) AND RISKS OF HUMAN-CROCODILE CONFLICTS IN SETTLEMENTS AROUND KUTAI NATIONAL PARK, EAST KALIMANTAN
Authors: Manurung Ramdani , Kusrini Mirza Dikari , Prasetyo Lilik Budi
Published: August 2021

Human-crocodile conflicts (HCC) are problems affecting crocodile conservation. Scientific publications on crocodile attack cases in Indonesia are few with low validation which hinder optimal conflict mitigation efforts. The estuarine river of Kutai National Park is a natural habitat for saltwater crocodiles and mostly nearby dense settlements. This study aims to map the distribution of saltwater crocodiles and potential conflicts in the Kutai National Park area. To predict the distribution of saltwater crocodiles, we used Maximum Entropy MAXENT with its environmental predictors i.e. slope, altitude, distance from shore, distance from river, temperature, and habitat types (mangrove forest, freshwater swamp, and shrubs). MAXENT prediction showed that elevation was the most influential variable with AUC (Average Under Curve) value of 0.952. Settlements with activities occurring within one kilometer from the river and those adjacent to coastal areas proved to be the highest in human conflicts with crocodiles. 

Key words: conflict, crocodile, human, MAXENT
Nilai dan Unsur Budaya pada Cerita Rakyat Buah Udak Suku Dayak Linoh
Authors: Olang Yusuf , Oktaviani Ursula Dwi , Oktaviani Yati
Published: August 2021

Value and Cultural Element in Buah Udak Folklore Dayak Linoh Ethic Group ABSTRAKTujuan penelitian ini adalah mendeskripsikan nilai dan unsur budaya pada sastra lisan cerita rakyat suku Dayak Linoh. Penelitian ini menggunakan metode deksriptif kualitatif. Data pada penelitian ini adalah semua kutipan-kutipan yang terdapat dalam cerita rakyat suku Dayak Linoh. Sumber data dalam penelitian ini adalah cerita rakyat suku Dayak Linoh dari Kecamatan Sungai Tebelian Kabupaten Sintang yang berisi satu cerita rakyat  Dayak Linoh yang berjudul Buah Udak. Hasil analisis data menunjukkan nilai budaya yang menggambarkan hubungan manusia dengan Tuhan, hubungan manusia dengan alam, hubungan manusia dengan masyarakat, hubungan manusia dengan orang lain atau sesamanya, hubungan manusia dengan dirinya sendiri. Sedangkan unsur budaya terdapat: peralatan dan perlengkapan hidup, sistem kekerabatan dan organisasi sosial, bahasa, kesenian, sistem kepercayaan, dan sistem ilmu dan pengetahuan. Masyarakat Dayak Linoh memercayai nilai budaya yang terdapat dalam cerita tersebut dan menjadi adat istiadat/tradisi.Kata kunci: nilai budaya, cerita rakyat, Dayak Linoh ABSTRACTThe purpose of this study was to describe the values and cultural elements in the oral literature of the Linoh Dayak folklore. This study uses a qualitative descriptive method. The data in this study are all quotes contained in the folklore of the Linoh Dayak group ethic. The source of the data in this study is the folklore of the Dayak Linoh group ethic from Sungai Tebelian District, Sintang Regency which contains a Dayak Linoh folktale entitled Buah Udak. The results of data analysis show cultural values that describe the relationship between humans and God, human relationships with nature, human relationships with society, human relationships with other people or with each other, human relationships with themselves. While the elements of culture are: tools and equipment for life, kinship systems and social organization, language, arts, belief systems, and systems of science and knowledge. The Linoh Dayak community believes in the cultural values contained in the story and becomes a custom/tradition.Keyword: cultural value, folklore, Dayak Linoh.
Biomass Production and Nutrient Content Animal Feed in Kuantan Singingi District
Authors: Infitria Infitria , Anwar Pajri , Jiyanto Jiyanto
Published: August 2021

Â  Â Â  Â Â Forage is a major requirement in increasing ruminant livestock production. Kuantan Singingi Regency is a district that has quite a lot of grasslands whose production and quality of forage are unknown, so this study aims to determine the production and nutritional content of forages in Kuantan Singingi Regency. This research consisted of three stages, survey (field observation and location determination), forage sampling, and nutrient quality analysis. Forage samples were taken in 4 sub-districts, namely the Districts of Central Kuantan, Sentajo Raya, Gunung Toar and Kuantan Mudik. 5 locations were taken for each sub-district, 4 points for each location were taken. The tools used for forage sampling consisted of a 0.5 x 0.5 m2 quadrant, grass shears, sickle, plastic bags of size 10 and size 2 kg, sacks, plastic ropes, and stationery. The analysis of nutrient quality using forage samples in 4 districts using proximate analysis. Forage production data and forage nutrient content were statistically analyzed using analysis of variance (ANOVA). The results showed that there were differences in production and nutrient content in each sub-district P<0.05. Fresh biomass production showed a significant effect of P<0.05. Fresh forage production ranged from 111.67Â±16.45 Kg FW/ha/day, while dry forage production ranged from 23.80Â±5.29 Kg to 187.04Â±67.35 Kg. The conclusion of this study is that the production and nutritional content of forage in Kuantan Singingi Regency is relatively low, the production of DW/ha/day is 23.80-40.35 Kg, and the CP ranges from 7.85-10.55% DW.
Analysis of Indentation Test Using Solid Works Simulation
Authors:   University of Jos, Gukop Nicholas Sylvester , Kamtu Peter Muar ,   University of Jos, Zwalnan Selfa Johnson ,   University of Nottingham
Published: August 2021

The finite element analysis of spherical indentation was conducted using the SolidWorks simulation software. The relationship between the load and indention was determined, and comparison with the Hertzian solution was made. In this study, spherical indenters of diameter 5, 10 and 15 mm were used to assess the effect of indenter radius on indentation response at a specified load. The outcome of our study shows that the resulting load-indentation response does not closely correlate; as a result, a difference of 21.2% was observed between the hertz solution and simulated results. The increase in diameter was observed to be associated with the corresponding decrease in indentation depth and the indentation stress. The von Mises stress contour at maximum load was analysed and was observed to be the highest on the indented surface beneath the indenter. The resultant displacement contour shows a uniform displacement distribution.
Synthesizing of Zeolite Particle Using Alkaline Plant Extract
Authors:   Nigerian Army University, Abdullahi Tijjani , Harun Zawati ,   Universiti Tun Hussein Onn Malaysia, Sazali Norsuhailizah ,   Universiti Tun Hussein Onn Malaysia, Hairom Nur Hanis Hayati ,   Universiti Tun Hussein Onn Malaysia, Jamalludin Mohd Riduan ,   Universiti Malaysia Perlis, Hubadillah Siti Khadijah ,   Universiti Utara Malaysia, Sazali Norazlianie ,   Universiti Malaysia Pahang, Alias Siti Salwa ,   Universiti Teknologi Malaysia, Azhar Faiz Hafeez ,   Universiti Tun Hussein Onn Malaysia
Published: August 2021

The study explored the hydrothermal synthesis of zeolite using kaolin clay precursor in the presence of three different solvents namely, garlic extract, watermelon extract and 2M NaOH solution, with the view of testing their efficacy and potency for green synthesis. Before the zeolitization, the kaolin precursor was activated at a temperature of 850°C to produce metakaolin. The crystallization was achieved in an oven at a temperature of 90°C for 12 hours. The final product is grounded to a fine powder and subsequently undergo testing and characterization via X-ray Diffraction (XRD) and Field Emission Scanning Electron Microscopes (FESEM) methods. The purity and grade of the synthesized products vary accordingly with the suitability of the reaction solvent. The synthesized product using a solvent of watermelon plant extract was able to produce zeolite LTA of a good grade. However, the presence of secondary phases informed the effect of the accompanied impurities that might originate from the kaolin precursor or the solvent. The result also portrays the possibility of obtaining a well crystalline zeolite from the Malaysian kaolin without using any structural directing agent or chemical solvents.
The Optimization of RHS-polysulfone Membrane towards Operating Condition for Humic Acid Removal
Authors:   Universiti Malaysia Perlis, Jamalludin Mohd Riduan , Hubadillah Siti Khadijah ,   Universiti Utara Malaysia, Harun Zawati ,   Universiti Tun Hussein Onn Malaysia, Yunos Muhamad Zaini ,   Universiti Tun Hussein Onn Malaysia, Basri Hatijah ,   Universiti Tun Hussein Onn Malaysia, Hairom Nur Hanis Hayati ,   Universiti Tun Hussein Onn Malaysia
Published: August 2021

This study investigates the effects of rice husk silica (RHS) as additive in the polysulfone membrane to enhance antifouling properties in membrane separation process. The performance (of what?) was evaluated in term of pure water flux (PWF), rejection and antifouling properties. The optimized of normalized flux (Jf /Jo) at different parameter in filtration (pH, ionic strength and tranmembrane-pressure) was carried out by using the response surface methodology (RSM). The results showed that the addition of 4 wt. % RHS give the highest flux at 300.50 L/m².hour (LMH). The highest rejection was found at 3 wt. % of RHS membrane with value 98% for UV254 and 96% for TOC. The optimal value of Jf/Jo was found at 0.62 with the condition of pH: 6.10, ionic strength: 0.05 mol/L and transmembrane-pressure: 2.67 bars. Optimize of RSM analysis from ANOVA also proved that the error of model is less than 0.05% which indicates that the model is significant.
An Implementation of First and Second Order Neural Network Classification on Potential Drug Addict Repetition
Authors:   Universiti Tun Hussein Onn Malaysia, Mohd Nawi Nazri , Tosida Eneng Tita ,   Universitas Pakuan, Hasbi Hamiza ,   Universiti Tun Hussein Onn Malaysia, Abdul Hamid Norhamreeza ,   Universiti Tun Hussein Onn Malaysia
Published: August 2021

Back propagation (BP) neural network is known for its popularity and its capability in prediction and classification. BP used gradient descent (GD) method as one of the most widely used error minimization methods used to train back propagation (BP) networks. Besides its popularity BP still faces some limitation such as very slow in learning as well as easily get stuck at local minima. Many techniques have been introduced to improve BP performance. This research implements second order method together with gradient descent in order to improve its performance. The efficiency of both methods are verified and compared by means of simulations on classifying drug addict repetition. The results show that the second order methods are more reliable and significantly improves the learning performance of BP.
Photocatalytic Degradation of Synthetic Sulfur Pollutants in Petroleum Fractions under Different pH and Photocatalyst
Authors:   Universiti Tun Hussein Onn Malaysia, Hamdan Mohamad Alif Hakimi , Hairom Nur Hanis Hayati ,   Universiti Tun Hussein Onn Malaysia, Zaiton Nurhafisza ,   Universiti Tun Hussein Onn Malaysia, Harun Zawati ,   Universiti Tun Hussein Onn Malaysia, Chin Fhong Soon ,   Universiti Tun Hussein Onn Malaysia, Hubadillah Siti Khadijah ,   Universiti Utara Malaysia, Jamalludin Mohd Riduan ,   Universiti Malaysia Perlis, Che Jusoh Nurfatehah Wahyuny ,   Universiti Teknologi Malaysia Kuala Lumpur, Abdul Jalil Aishah ,   Universiti Teknologi Malaysia
Published: August 2021

Thiophene is one of the sulfur compounds in the petroleum fraction that can be harmful to living things and lead to a critical effect on the ecosystem. Photocatalytic degradation is one of the promising methods in treating wastewater as it can mineralization of pollutants into carbon dioxide and water. Other than that, this method is non-toxic and relatively low cost. The production of hydroxyl radicals playing a vital role in the degradation of organic pollutants. It has been claimed that the usage of zinc oxide (ZnO) nanoparticles could give an excellent degradation process as this photocatalyst have high photosensitivity, low cost and chemically stable. However, the preparation method of ZnO nanoparticles will affect the agglomeration, particle size, shape and morphology of particles and lead to influence the photocatalytic activity in degrading thiophene. Therefore, this study focused on the effectiveness of ZnO nanoparticles in the presence of fibrous nanosilica (KCC-1) and polyethylene glycol (PEG) as the capping agent to degrade synthetic thiophene. ZnO/KCC-1 had been synthesized via the precipitation method and characterized by using Fourier Transform Infrared (FTIR). The chemical bond and nature of the photocatalyst from the FTIR results proved that the synthesis process to produce the ZnO/KCC-1 was succeed. The large surface area of KCC-1 increases the effectiveness of ZnO which is supported by the experimental data. Accordingly, the optimum condition for photocatalytic degradation of thiophene is under pH 7 by using ZnO/KCC-1 as photocatalyst. Hence, it is believed that this research could be implemented to remove the thiophene in petroleum fraction from the actual industrial effluents and this can preserve nature in the future.