bluuebunny/crossref_metadata_2025 huggingface dataset:
Experimental and theoretical investigation of a sub-threshold OEO for RF sensing of constant and time-varying signals
Authors: Glover Brenden , Osisanya Michael O. , Vemuri Gautam , Suelzer Joseph S.
Published: May 2024

We experimentally characterize and numerically model the amplification characteristics of a sub-threshold opto-electronic oscillator subject to external continuous wave radio frequency injection, as well as the transient temporal characteristics when subject to a pulsed radio frequency injection. The opto-electronic oscillator demonstrates enhanced sensitivity and amplification as threshold is approached. A radio frequency gain of 27.5 dB is demonstrated at an optical power of 0.989 times the threshold optical power. Furthermore, the transient behavior shows signatures of both the intrinsic time-delay of the opto-electronic oscillator and the finite bandwidth of the electronic radio frequency filter. Approximating higher-order group delay contributions of the experimental band-pass filter as an external time-delay allows the system to be modeled with a well-known opto-electronic oscillator rate equation model. The nonlinear, time-delayed differential equation model provides numerical agreement with experimental results. The model is approximately solved in respective analytical and transcendental regimes, giving reliable predictions compared to the experiment. It is demonstrated that small time-delay variation yields precise and predictable control over the frequency selectivity of the opto-electronic oscillator sensor.
Optimizing E-Commerce Decision Making Using Web Scraping
Authors: Chandrawat Aryaman Singh , Kumar Nawal , Bohra Vaibhav
Published: May 2024

This research investigates the potential of web scraping techniques to
optimize decision-making within the e-commerce landscape. By leveraging
advanced scraping methods, the project aims to develop a framework that
extracts and analyses data from various e-commerce domains. This data
will encompass crucial elements like product information and pricing
strategies. Through innovative data analysis techniques, the framework
will uncover valuable insights and trends, empowering e-commerce
businesses to make informed decisions in several key areas. These areas
may include optimizing product selection, implementing dynamic pricing
strategies, and crafting targeted marketing campaigns. Ultimately, this
research seeks to demonstrate how web scraping, when employed ethically
and responsibly, can become a powerful tool for e-commerce businesses to
gain a competitive edge and enhance their overall decision-making
processes.
Analisis Reduksi Debit Banjir Kali Grogol Terhadap Pembangunan Waduk Lebak Bulus
Authors: Apriyanti Okta , Arbaningrum Rizka
Published: May 2024

Banjir merupakan sebuah fenomena yang tidak dapat dihindari namun dapat dikendalikan. Salah satu fenomena banjir yang terjadi yaitu pada kawasan permukiman warga Kampung Duku di belakang Mall Gandaria City setinggi satu meter. Banjir tersebut disebabkan oleh luapan sungai Kali Grogol. Terkait dengan hal tersebut, Pemprov DKI Jakarta membuat program pembangunan waduk Lebak Bulus dalam rangka pengendalian banjir di wilayah DKI Jakarta, khususnya di Sistem Kali Grogol. Waduk ini nantinya akan digunakan sebagai penampungan dari debit air yang meluap di Kali Grogol ketika curah hujan meningkat. Tujuan penelitian ini yaitu untuk menganalisis mengenai seberapa besar reduksi yang dihasilkan oleh pembangunan Waduk Lebak Bulus dalam mengurangi debit banjir akibat luapan aliran sungai Kali Grogol dengan permodelan aplikasi SWMM 5.2. Dalam tahapannya didapati analisis hidrologi untuk mencari besarnya curah hujan maksimum rencana tahun sebesar 266.4684 mm dengan kala ulang 100 tahun untuk medapati diagram hyeptograph sebagai data curah hujan dalam aplikasi SWMM 5.2. Dalam permodelan SWMM 5.2 didapati flooding atau hidrograf tanpa waduk sebesar 2863.22 cfs pada menit ke 45. Sedangkan flooding atau hidrograf dengan waduk sebesar 2253.09 cfs pada menit ke 45. Sehingga dari data tersebut didapatkan hasil reduksi debit banjir sebesar 21.3%. Hasil persentase dari reduksi debit banjir ini dapat digunakan untuk penelitian selanjutnya, terutama untuk bangunan pengendali banjir lainnya.
Effects of Continuous Analgesic Titrated Spinal Anesthesia in Elderly Patients Undergoing Hip Fracture Surgery
Authors: Matouk M.
Published: May 2024

Background and Objectives: Anesthetizing elderly patients with hip fractures poses a significant challenge in emergency settings, particularly given the aging population both in Algeria and worldwide. With a high prevalence of comorbidities and polypharmacy, effective anesthetic management becomes paramount. Continuous titrated spinal anesthesia (CTSA) has emerged as a promising technique for addressing these complexities by proposing lower doses of local anesthetic (LA) in this patient population. Methods: This retrospective study involved 40 elderly patients (>65 years) undergoing hip fracture repair. Patients received intermittent dosing of a local anesthetic solution via an intrathecal catheter, utilizing 0.25 ml increments of 0.5% isobaric bupivacaine and 0.25 ml of fentanyl (12.5 μg). Evaluation criteria included hemodynamic stability, incidence of hypotension, extent of sensory and motor blockade, total ephedrine consumption, and patient and surgeon satisfaction. Results: A female predominance was noted, with a mean age of 75 years, and 72% classified as ASA ≥ III. Pertrochanteric fractures accounted for 47% of cases, followed by femoral neck fractures at 53%. Nearly all patients achieved a sensory level ≥ D10, with a failure rate of only 2%. Sedation supplementation was required in 20% of cases, with conversion to general anesthesia in one patient. Complications were minimal, including arterial hypotension (3%), vasoconstrictor use (2%), and bradycardia (0.8%). Overall, both patients and surgeons reported high levels of satisfaction. Conclusions: Our findings demonstrate that CTSA is an effective technique for elderly patients undergoing hip fracture repair, offering the advantages of reduced LA doses, excellent hemodynamic stability, and minimal side effects. Its simplicity and cost-effectiveness further enhance its appeal in clinical practice.
Lipodystrophy in insulin users: a literature review
Authors: Lopes Francisco Leilson da Silva , Silva Ana Carla dos Santos , Linard Walber Mendes , Pinho Lucimary Leite de , Paiva Maria Janaelvia Guimarães , Leite Ana Caroline Rocha de Melo , Melo Anielle Torres de , Rodrigues Lílian Karla Nojosa , Rabelo Maria Wanessa Freires , Monteiro David Levy Melo , Silva Francisco Wanderlei Lima , Filho José Damião da Silva , Mesquita Jacilane Ximenes , Nunes Rodolfo de Melo
Published: May 2024

Diabetes is a metabolic syndrome of multiple origins, resulting from lack of insulin and/or the inability of insulin to adequately exercise its insulin. Since 1921, drug therapy by subcutaneous insulin has helped the diabetic patient. Although there are benefits, it is necessary to report that insulin therapy can lead to complications such as lipodystrophy. This is a literature review aimed at evaluating the characteristics of lipodystrophy in insulin users. The first step was to assess the profile of people who develop lipohypertrophy from using insulin. The authors report that most patients who reach a critical level of LH self-administer insulin, a fact that can lead users to settle for the correct administration of therapy. Some reported that the stains had already appeared for years, but patients felt embarrassed to look for someone else to apply. In many who already had prominences in the subcutaneous tissue, the report was that the site was painless. As an expected result, the absence of rotation at the application sites is the main cause for the appearance of LH. From the moment the patients were diagnosed by the professionals and started to be instructed about the rotation of the application sites, the LH rate dropped to 8% of the people. Therefore, insulin users need
Psychotrauma en posttraumatische stressklachten bij een gerontopsychiatrische populatie
Authors: Koer Mary L. , Diesfeldt Han F. A.
Published: May 2024

Inleiding: Dit onderzoek betreft posttraumatische stressklachten en posttraumatische stressstoornis (PTSS) bij gerontopsychiatrische (GP) patiënten in het verpleeghuis. PTSS bij ouderen is onderbelicht en deze groep ouderen is hier niet eerder op onderzocht. PTSS gaat vaak samen met ernstige psychiatrische problematiek, kan invloed hebben op, of zelfs verklarend zijn voor onbegrepen probleemgedrag. De huidige trend is dat psychiatrische problematiek steeds vaker reden voor opname is. Deze studie onderzoekt in hoeverre traumatische ervaringen en PTSS bij deze populatie aanwezig zijn en in hoeverre regiebehandelaars (specialisten ouderengeneeskunde) dit onderkennen.Methode: Om psychotrauma en PTSS te screenen werd de Trauma Screeningsvragenlijst (TSV) afgenomen. De inschatting van de regiebehandelaars omtrent de aanwezigheid van psychotrauma en PTSS werd geobjectiveerd middels twee vragen.Deelnemers: Alle 52 GP-patiënten in de onderzochte zorginstelling, van wie 16 de TSV-vragen niet hebben beantwoord.Conclusie: Traumatische ervaringen komen bij deze groep zeer frequent voor. Zij worden deels niet herkend door regiebehandelaars. Een advies voor de klinische praktijk is om bij GP-patiënten van een verpleeghuis niet alleen de TSV af te nemen, maar daarbij ook te vragen naar mogelijke vermijding van traumatische herinneringen. De kans op onderdiagnostiek van psychotrauma en PTSS kan hiermee worden verkleind.
Gewenste zorg in de laatste levensfase, een palliatief zorgpad met potentie
Authors: Vrencken Michelle J.E. , Jochem Inge , Meijers Judith M.M. , Knapen Els P.A.G.M.
Published: May 2024

Geen samenvatting/No abstract
De bekendheid van frailty in de praktijk
Authors: Van Hoof An , Léonard Silke , Bonnez Yannic , Vermeiren Sofie
Published: May 2024

Samenvatting
Er is steeds meer ruimte en aandacht voor de mogelijkheden die onze verouderende populatie met zich meebrengt. Eén van de belangrijkste bezorgdheden echter aangaande onze verouderende samenleving is frailty. Ondanks de vele bestaande initiatieven in het uitwerken van richtlijnen, alsook het ontstaan van geriatrische dagziekenhuizen, is bijkomende aandacht voor deze problematiek nodig. De vraag die hierbij kan worden gesteld, is: ‘Welke kennis en skills bezitten gezondheidswerkers, bij wie het voornaamste doelpubliek de oudere is, rond het thema frailty?’ Er werd gebruik gemaakt van een semigestructureerd interview, om na te gaan wat de huidige kennis en visie van het concept frailty is bij zorgverleners werkzaam in een ziekenhuis, met als voornaamste doelpubliek de oudere. Om de resultaten gestructureerd weer te geven, werd gebruik gemaakt van een matrix. Uit dit onderzoek blijkt dat de kennis en huidige aanpak van frailty in de klinische praktijk nog erg gefragmenteerd is. Hoewel gezondheidswerkers over het algemeen een relatief goed beeld hebben van het fenomeen, worden fundamentele processen te weinig uitgebreid besproken om echt te kunnen spreken van de aanwezigheid van “diepgaande kennis”.
Tot hier … en nú verder – behoeften van ouderen tijdens de coronapandemie in Nederland
Authors: Engels Gwenda , Baâdoudi Fatiha , Lemmens Lidwien , Van der Lucht Fons
Published: May 2024

Geen samenvatting
Behandeling van valangst na een heupfractuur
Authors: Scheffers-Barnhoorn Maaike
Published: May 2024

Kan behandeling van valangst na een heupfractuur bijdragen aan een beter herstel voor ouderen? Dit was een van de vragen van het proefschrift getiteld ‘Management of fear of falling after hip fracture’.
In Nederland worden jaarlijks ongeveer 17.500 ouderen in het ziekenhuis opgenomen vanwege een heupfractuur. Na operatieve behandeling volgt vaak een langdurig revalidatie traject. Een deel van de groep herstelt niet volledig, ondanks de inzet van multidisciplinaire behandeling. In deze doelgroep is valangst een veelvoorkomend probleem, en dit werd eerder geïdentificeerd als een belangrijke risicofactor voor verminderd herstel. Valangst kan ertoe leiden dat men activiteiten gaat vermijden en minder gaat bewegen, wat vervolgens een negatief effect kan hebben op het herstelproces. In de FIT-HIP studie werd daarom onderzocht of behandeling van valangst, vroeg in de revalidatie na een heupfractuur, effectief was om valangst te doen verminderen en het fysiek herstel te verbeteren.
Adrianus van Selms: Concise versions of his contributions in Dutch and Afrikaans theological journals (1938-82)
Authors: van Rensburg Hans
Published: May 2024

Adrianus van Selms (1906-1984) was a Dutch pastor (1930-1938) who became senior lecturer and professor in Semitic languages at the University of Pretoria (1938-1972) and lecturer in Biblical archaeology (1938-1962) at the Faculty of Theology of the Nederduitsch Hervormde Kerk van Afrika (Dutch Reformed Church of Africa). He was an acknowledged academic in South Africa and abroad and the author of numerous publications. His books were predominantly in Dutch, but he wrote most of his articles in English, thus they are theoretically accessible to the scholarly public. A number of articles, however, were published in Dutch and Afrikaans, dialects that are less easy to comprehend by those not familiar with the said two languages. The present book is an attempt to overcome the linguistic barrier and to present in a summarised way Van Selms’ contributions in three Dutch journals (Onder Eigen Vaandel, Nederlands Theologish Tijdschrift, and Kerk en Theologie), two academically-orientated Afrikaans journals (Hervormde Teologiese Studies and Acta Classica) and three journals of a more popular nature (Die Hervormer, Pro Veritate and Almanak). In total, 87 separate articles (discussed in 79 sections) of Van Selms receive attention.
The Religious Identity of Rohingya Refugees in Malaysia
Authors: Lukmanulhakim Nur Nadia , Samuri Mohd Al Adib bin
Published: May 2024

This paper explores the role of religious identity in the experiences of Rohingya refugees in Malaysia. It explores how their religious identity shapes their social engagement, coping mechanisms, and integration approaches. In contrast to focusing solely on race, this study underscores the significance of religion, especially in a Muslim-majority country like Malaysia, where Rohingya seek refuge from religious persecution while upholding their faith. Through qualitative analysis, the paper examines post-migration challenges faced by Rohingya refugees in integrating with the host community and maintaining their religious identity. Despite sharing the Islamic faith with many Malaysians, Rohingya encounter difficulties in integration and often feel marginalized. They establish community-centric spaces to preserve their religious practices and cultural heritage. This research underscores the complex interaction between religious identity and social integration among Muslim refugees in Muslim-majority countries, offering crucial insights that will inform integration policies and interventions.
Pendampingan Belajar Membaca dan Menulis bagi Anak Sekolah Dasar Negeri 1 Desa Kameloh Baru Palangka Raya Kalimantan Tengah
Authors: Soleha Indri Mardiyatus , Normaida Normaida , Fitrina Rahimatul , Sabarun Sabarun , Mulyadi Mulyadi , Mahmudi Muhammad Abdul Alwi
Published: May 2024

Kegiatan program pengabdian kepada masyarakat ini bertujuan untuk membantu guru dalam pendampingan belajar guna mencerdaskan anak bangsa. Terdapat beberapa peserta didik di kelas V dan VI menunjukkan kemampuan membaca dan menulis yang masih rendah. Akibat kesulitan membaca dan menulis, peserta didik mengalami keterlambtan dalam menerima pelajaran dibandingkan dengan pesera didik lainnya. Akhirnya dibuatlah strategi khusus yaitu dengan memberikan jam belajar tambahan di akhir pelajaran sekolah. Metode kegiatan dalam program pengabdian masyarakat ini meliputi observasi, sosialisasi, pendampingan, dan evaluasi. Kegiatan awal yang dilakukan yaitu mendata peserta didik yang mengalami kesulitan membaca dan menulis. Didapatkan sebanyak 8 anak. Selanjutnya dilakukan pendampingan belajar membaca dan menulis setelah jam pelajaran selesai (jam pulang). Hasil kegiatan program pengabdian kepada masyarakat ini mengungkapkan bahwa kegiatan berupa pendampingan belajar membaca dan menulis dapat memberikan dampak yang positif bagi anak yang mengalami kesulitan dalam kemampuan tersebut. Pendidikan usia dini (usia TK) dan faktor lingkungan sangat berpengaruh untuk meningkatkan literasi anak (peserta didik).

Kata kunci: Pengabdian Masyarakat, Pendampingan Belajar, Membaca dan Menulis.
Peningkatan Kualitas Siswa Melalui Pelatihan Motivasi Belajar, Bahasa Inggris dan Matematika di Yayasan Mitra Arofah
Authors: Bayhaqi Abdullah Muttaqin , Fahlevi Abyan , Hafid Aditya Ihsan , Ramadhan Aisyah Afni , Syafira Dewi , Rahmadani Dian Perdana Putri , Nugrahsari Eilen Endah , Santi Dwi Rukma
Published: May 2024

Motivasi belajar diartikan sebagai keseluruhan daya penggerak psikis dalam peserta didik yang menimbulkan kegiatan belajar demi mencapai suatu tujuan. Seorang peserta didik akan bisa belajar dengan baik apabila ada faktor pendorongnya yaitu motivasi belajar. Oleh karena itu, penting bagi peserta didik untuk memiliki motivasi belajar tinggi, agar dapat belajar dengan sungguh-sungguh. Namun, motivasi belajar tersebut akan bekerja dengan lebih cepat jika ada faktor penggerak dari luar, seperti melalui pemberdayaan dan psikoedukasi. Kegiatan pemberdayaan ini bertujuan untuk menambah pemahaman siswa mengenai pentingnya memiliki motivasi belajar dalam kegiatan pembelajaran dan mempercepat daya kerja motivasi belajar. Selain itu, fasilitator juga memberikan kegiatan pendampingan belajar intensif untuk mata pelajaran Bahasa Inggris dan Matematika. Kegiatan ini dilaksanakan selama tiga hari pada hari sabtu dan minggu, tanggal 15, 21, dan 22 Oktober 2023 di Panti Asuhan Yayasan Mitra Arofah dengan jumlah partisipan 10 Orang siswa SMP kelas 8-9. Pemberdayaan ini menggunakan metode Community Based Research (CBR) dengan tahapan peletakan dasar, perencanaan penelitian, pengumpulan dan analisis data, serta aksi atas temuan. Hasil pemberdayaan melalui rata-rata pre- test (7,6) dan post-test (14,5) menunjukkan peningkatan pengetahuan antara sebelum dan sesudah kegiatan pemberdayaan.

Kata Kunci: Peningkatan Kualitas Siswa, Motivasi Belajar, Community Based Research.
Die Koproduktion sozialer Infrastrukturen in Ankunftsquartieren
Authors: Pilz Madlen , Friedrich Katja , Rößler Stefanie
Published: May 2024

Ostdeutsche Großwohnsiedlungen wurden in der Folge von Strukturwandel, Bevölkerungswegzug und Leerstand bis 2015 vielerorts zu sogenannten Rückbauquartieren. Insbesondere seit der Einwanderung von Menschen, die vor dem Bürgerkrieg in Syrien flohen, ist eine Anpassung der kommunalen Perspektive auf diese Stadtteile notwendig. Adressiert werden müssen dabei der neue Bedarf nach Wohnraum sowie die Entwicklung von Infrastrukturen, die Inklusion und Beteiligung erleichtern. Der Beitrag analysiert am Beispiel zweier sozialer Infrastrukturen in der Schweriner Großwohnsiedlung Mueßer Holz – eines Stadtteilparks und eines Bildungsangebots – die zentrale Rolle zivilgesellschaftlicher Akteur*innen bei der Infrastrukturversorgung in diesem Ankunftsquartier. In einer Verschränkung aus Infrastrukturanalyse und dem Borderscape-Konzept richten wir den Fokus auf zentrale Aspekte der Aushandlung von Widersprüchen zwischen zivilgesellschaftlichen und kommunalen Akteur*innen. Diese artikulieren sich in der Überschneidung von Integrations- und Quartierspolitiken sowie deren unterschiedlichen Verständnissen und Förderprogrammen im Prozess der Koproduktion der Infrastrukturen und erweisen sich als Barrieren für eine Inklusion von Migrant*innen.
Ein Streifzug durch die gemeine stadt
Authors: Richter Johanna
Published: May 2024

Zentrale Frage der digitalen Publikations- und Veranstaltungsreihe gemeine stadt: berlin gemeinsam gestalten ist, wie Stadt und ihre öffentlichen Güter gemeinsam im Kontext von zunehmenden Verteilungskämpfen um Daseinsvorsorge – wie Wohnraum, Mobilität, Gesundheit und die Notwendigkeit einer klimagerechten Transformation von Gesellschaft – gestaltet werden können. Die gemeine stadt wurde von Sabrina Dittus, Stephan Lanz und Kathrin Wildner im Auftrag der Berliner Landeszentrale für politische Bildung entwickelt. In aktuell acht Kapiteln wird sich „umkämpften“ sowie „banalen“ Themen wie straße, versammlung, eigentum, umweltgerechtigkeit, kollektive, daseinsfürsorge, „home“ / zuhause und unruhe/n gewidmet. Die Kapitel offenbaren eine große Bandbreite an künstlerischen, aktivistischen, journalistischen und wissenschaftlichen Beiträgen.
Diversität in der Planungsprofession
Authors: Vollmer Lisa
Published: May 2024

Städte waren schon immer Orte der Diversität. In einer postmigrantischen Gesellschaft sowie angesichts zunehmender sozioökonomischer Ungleichheiten stellt sich zunehmend dringlich die Frage nach dem Zusammenhang zwischen Diversität und Stadt beziehungsweise zwischen Diversität und Stadtplanung. Entsprechend häufig sind Rufe nach einer diversitätssensiblen Planung und Stadtentwicklung. Angesicht einer zunehmenden Diversität der Bewohner:innen von Städten stellt sich aber auch die Frage, wie es um die Diversität in der Planungsprofession in Deutschland bestellt ist. Diversität in der Planungsprofession ist in der deutschen Planungswissenschaft bisher kaum ein Thema. Deshalb widmet sich dieser Beitrag dieser Frage in drei Schritten. Zunächst zeichnet er die weitgehend englischsprachige Debatte in den Planungswissenschaften um Diversität in der Planungsprofession nach. Angesichts der mangelnden Debatte und fehlender Daten in Deutschland stellt er anschließend die Ergebnisse einer Analyse der Sozialstruktur eines Planungsstudiengangs vor – des Bachelors Urbanistik an der Bauhaus-Universität Weimar – und interpretiert diese Befunde.
Proceedings of the Ninth International Congress on Science and Skiing (ICSS) – Saalbach/Hinterglemm March 2023
Authors: Stöggl Thomas Leonhard , Wiesinger Hans-Peter , Schwameder Hermann
Published: May 2024

Winter sports play a crucial role across individuals of all age groups, athletes or recreational enthusiasts with considerable health, economic and touristic importance. Besides these benefits challenges arise as equipment safety, athlete preparation to perform on highest level and prevent from injury, rehabilitation, sustainability, equipment etc. In this context, the International Congress on Science and Skiing (ICSS) has been a regular pivotal gathering for over 20 years. ICSS was hosted first time in 1996 in St. Christoph am Arlberg and celebrated in 2023 the 9th conference in Saalbach/Hinterglemm. The ICSS gathers winter sports experts around the world with up to 250 participants from more than 15 nations. Selected contributions were critically reviewed to be published Current Issues of Sport Science. The special issue demonstrates the broad spectrum of contributions in all fields and disciplines in winter sports.
Heel riser height influence on kinematics and muscle activity of ski mountaineering – A field based study
Authors: Turczyn Daniel , Graham David , Lasshofer Michael , John Seifert
Published: May 2024

Introduction
The ski binding plays an important role in ski mountaineering. When traveling uphill, the binding has an adjustable heel height known as the riser. Previous laboratory research reported joint kinematics and kinetics are influenced by riser height, however little is known about changes to muscle activity associated with differing joint motion. The purpose of this work was to assess riser height influence on kinematics and muscle activity at different slopes during on-snow skiing.
Methods
Three female and nine male recreational ski mountaineers (19-26 y) were tested on 5o and 16o gradients using no riser (0 cm) and riser (5.3 cm) at a submaximal 80% HRmax. Each subject used Backland 85 UL skis and Backland Bindings (Atomic Skis, Altenmarkt, Austria). Subjects skied for 6 min at each binding setting with the last 10 gait-cycles evaluating lower limb joint motion gathered from 2D-sagittal plane motion capture. Electromyography (EMG) collected unilaterally on the rectus femoris, biceps femoris, medial gastrocnemius and triceps brachii also.
Results
5o slope: hip range of motion (ROM) decreased (p = .003), ankle ROM decreased (p = .005), stride length decreased (p = .004), rating of perceived exertion (RPE) increased (p = .02) for riser compared to no riser. At 16o slope: hip ROM decreased (p = .001), and RPE decreased (p = .004) for riser compared to no riser. HR, glide distance, velocity, EMG, and net mechanical efficiency were not different between riser heights on either slope.
Discussion/Conclusion
Lower body joint kinematics, step length and RPE varied significantly with riser height. Kinematic differences did not impact velocity or muscle activity when controlling pace. These results agree with previous findings showing minimal differences in EMG and HR while lower body kinematics and RPE changed with riser height.
Development of world class ski performance: Similarities and differences in pathways to expertise for freeskiers and cross-country skiers
Authors: Aalberg Martine , Roaas Truls Valland , Aune Morten Andreas , Aune Tore Kristian
Published: May 2024

The overall purpose of the present study was to investigate similarities and differences in pathways to expertise for freeskiers and cross-country skiers. Specifically, 1) Entrance to the main sport, 2) Amount of training hours and organization of training, and 3) Variability in activities and content in training. Sampling athletes had to be on the highest level in their sport by competing in, e.g., the World Cup, World Championship, Olympic games, freeride World Tour. In total, 18 world-class skiers participated in the study. Eight freeskiers (age range 19-37) and ten cross-country skiers (age range 22-32 years). They answered a digital questionnaire designed to collect retrospective data describing their pathways to expertise. The first section elicits biographical information, age for entering sport and practice. The second section focused on sport-specific training, accumulated hours of training, and the distribution of organized versus self-organized training. The third section recalled the variability of activities they participated in and how they perceived the relevance of the content of different types of training for their sport-specific development. The results showed similarities in athletes’ entrance to the main sport, specialization age and total amount of training. At the same time, differences were observed in their training history regarding the organization of training. In contrast to cross-country skiers, freeskiers seem to be more self-organized and more involved in additional activities besides their main sport. Interestingly, the two groups of world-class athletes representing sports with distinctive demands share several common variables in their paths to expertise, amplified by perceived specificity. Practitioners and academics should substantiate patience in expertise development, driven by a multi-disciplinary understanding of distinct and individual characteristics or conditions that may be beneficial in fulfilling varied future demands. Hence, research should explore the rationale behind and potential learning effects between sports and training content.
The puzzle of monitoring training load in winter sports - A hard nut to crack?
Authors: Haller Nils , Strepp Tilmann , Stöggl Thomas
Published: May 2024

Elite winter sports have become increasingly professionalized and commercialized, often accompanied by congested competition schedules. This has brought the topic of load management, i.e., planning, monitoring, and adaptation, enormous attention in the scientific community. In this review, we summarize the general knowledge from various sports about training load and its effects on injuries and illnesses. After outlining the fundamentals of load monitoring, we present common monitoring tools, i.e., neuromuscular performance tests, heart rate measures, blood-based biomarkers, and questionnaires and discuss their potentials and pitfalls in application. Studies have identified training load-related variables, but also other factors such as travelling, previous injuries, or age contributing to the occurrence of illness and injury. Based on our findings, the use of monitoring tools must be context-specific and long-term, considering statistical aspects as well. Promising study designs and future perspectives are finally highlighted, with the general conclusion that there is still a clear need for research on this topic in general and in the field of winter sports in particular.
Landbird monitoring: 2022 results from Crater Lake National Park, Lassen Volcanic National Park, Oregon Caves National Monument and Preserve, and Whiskeytown National Recreation Area
Authors: Stephens Jaime , McLaren Thomas , Gillespie Caitlyn , Stuyck Claire
Published: May 2024

In 2022, the Klamath Inventory and Monitoring Network (KLMN) of the National Park Service implemented the 14th year of a long-term landbird monitoring protocol. Klamath Bird Observatory, in partnership with the KLMN, developed the protocol and completed this 14-year effort. Multiple standard avian sampling methods were implemented, including variable circular plot point counts, area search surveys, mist netting, species checklists, and habitat surveys. In 2022, a fifth year of point counts was completed, along with corresponding species checklists and habitat surveys, at 35 locations within Crater Lake National Park, 4 locations within Oregon Caves National Monument and Preserve, 24 locations within Lassen Volcanic National Park, and 30 locations within Whiskeytown National Recreation Area. Unlike in previous years, 4 rather than 2 national park units were monitored. This change in survey effort was made to compensate for surveys that were missed during 2020 when no monitoring was conducted due to the emergence of the COVID-19 pandemic. The operation of an ongoing constant effort monitoring station, which included mist netting, point counts, area searches, species checklists, and habitat surveys, continued at Oregon Caves National Monument and Preserve during the breeding and fall migration seasons. Relative abundance (birds/station), as measured by point count and area search methods, was calculated for all survey sites combined within each park. Total captures, by season, were calculated using constant effort mist netting data. Species of conservation importance were among the most abundant species at each park. Results are presented along with conservation status of individual species based on Partners in Flight state and continental plans and Oregon and California Wildlife Conservation Strategies. This 14th year of implementation of the KLMN landbird monitoring program continued to lay the groundwork for improved understanding of landbird status and long-term trends in each park. When analyzed in the framework of the Klamath Bird Monitoring Network, the contribution of KLMN parks to bird conservation in this region will help inform landbird conservation in the West.
Diversity of Tree Species in Campus Forest of UIN Sulthan Thaha Saifuddin Jambi
Authors: Wati Ayu Widya , Susanti Try , Manurung Aini Qomariah , Riany Hesti
Published: May 2024

An indicator of the stability of a community within an ecosystem is diversity of species. The absence of data regarding the species diversity in the campus forest of UIN Sulthan Thaha Saifuddin Jambi prompted the conduct of this study, which aimed to identify tree types and calculate the diversity index and evenness index for the campus forest. To achieve this aim, the research site was selected through the implementation of purposive sampling, whereas the plot was determined through the utilization of systematic sampling. Aside from that, tree data was collected in 22 plots using a quadratic method with dimensions of 20 m x 20 m. The research findings revealed the acquisition of 83 tree species, comprising 30 families and a total of 464/8.62 ha individuals. The species of tree that contains the greatest number of individuals is Ixonanthes sp. The genus Ixonanthes exhibited the greatest INP, which measured 37.64%. At 3.70, the species diversity index (H') indicates a significant degree of diversity across categories. Furthermore, the evenness index (E) acquired a value of 0.84, placing it within the category of high evenness
Phytochemical Screening of Coconut Pistil Extract (Pistillum Cocos nucifera) as Traditional Medicine
Authors: Rahma Cukri , Fadillah Mardi , Syam Nasrianti , Rinawati Rinawati
Published: May 2024

The coconut plant is a plant that has many benefits for human life. Every part of the coconut plant has great benefits for life, such as the trunk, roots, fruit, even the fruit or pistil of the coconut also provides many health benefits. Villagers use coconut pistil as a traditional medicine in the treatment of diarrhea. Traditional medicine can be obtained from plants that contain secondary metabolite compounds. Secondary metabolite compounds are active compounds found in plants to defend themselves from harmful environmental attacks. The purpose of this study is to identify secondary metabolite compounds present in coconut pistils. Identification of secondary metabolite compounds is carried out qualitatively, namely conducting phytochemical tests (phytochemical screening) in the laboratory. Phytochemical Screening is a simple and effective method. The results of this study indicate that coconut pistil (pistillum Cocos Nucifera) positively contains secondary metabolite compounds of flavonoids, saponins, tannins, terpenoids and phenolics. So that coconut pistil can be used as one of the traditional medicinal ingredients
An Analysis of The Relevance of The Pancasila Learner Profile in The Learning of Biology
Authors: Chastanti Ika , Rofieq Ainur , Huda Atuk Miftachul , Eriyanti Ribut Wahyu , Hasruddin Hasruddin
Published: May 2024

Pancasila education is relevant to biology learning because it helps in the development of the Pancasila Learner Profile, which includes characteristics such as critical thinking and creativity. The purpose of this study was to analyse the relevance of Pancasila Learner Profile in biology learning and the challenges in integrating Pancasila values in biology learning. This research uses descriptive method with the sample being students of grade XII of SMA Negeri 1 Aek Kuo, SMA Negeri 1 Rantau Selatan and SMA Negeri 2 Rantau Selatan. Data collection was done through interview and observation. The sampling technique used in this research is purposive sampling because this school has implemented an independent curriculum.  The results showed that for the dimension of faith, fear of God and noble character, students are required to pray before and after learning, the dimension of global citizenship, students are divided into groups to conduct experiments, the dimension of mutual cooperation, students carry out greening activities to preserve the environment. The independent dimension, students work independently on biology tasks, the critical thinking dimension, students solve problems that arise during experiments, and the creative dimension, students produce work from recycling waste.
Potential of The Biological Agent Bacillus spp in Inhibiting Fusarium Wild Disease and its Effects on The Growth and Production of Cayenne Papper (Capsicum frutescens L.)
Authors: Zakqy Nauval , Wuryandari Yenny , Purnawati Arika
Published: May 2024

Cayenne pepper (Capsicum frutescens L.) is a horticultural crop in Indonesia that often has many obstacles. The main obstacle that is often faced is wilt disease caused by the fungus Fusarium oxysporum. Bacillus spp. bacteria have the potential to control the fungus F. oxysporum. The purpose of this study was to determine the ability of Bacillus spp. bacteria in controlling fusarium wilt disease. This research was conducted from August to November 2023 at the Plant Health Laboratory and screen house of the Faculty of Agriculture, National Development University "Veteran" East Java. The study used a Factorial Complete Randomized Block Design with three replications and nine treatments so that there were 27 experimental units. The observation variables included incubation period, disease intensity, plant height, number of leaves, first flower appearance and fruit wet weight. The research data were analyzed using ANOVA analysis of variance procedure to determine whether there is an effect of each treatment. If it is known that there is a significantly different effect from the treatment, it will be continued with the DMRT test at the 5% level. The results showed that the combination of Bacillus spp bacteria and dosage had an effect on the incubation period and disease intensity. The results showed that the combination of Bacillus spp bacteria and doses had an effect on vegetative phase parameters, namely plant height and number of leaves. However, the combination of Bacillus spp and dosage showed that the generative phase parameters did not significantly affect the first flower appearance and fruit wet weight
Analysis Of Microbial Culture Learning: Understanding The Relationship Between Technical Competence And Students' Perspectives At Dharmawangsa University, Medan
Authors: Afriani Dwi Tika , Rofieq Ainur , Huda Atok Miftachul , Eriyanti Ribut Wahyu , Hasruddin Hasruddin
Published: May 2024

This study examines the relationship between test scores and students' perceptions of learning microbial cultures. The objectives of the research were to determine how students' technical skills correspond with their subjective perceptions of difficulty in various aspects of learning, and to identify the most difficult aspects of learning microbial cultures. Data were collected through tests and questionnaires administered to microbiology practicum students. Analysis revealed a significant correlation between test scores and student perceptions in most aspects of learning, but with variation between aspects. Aspects of basic microbial culture concepts showed a positive correlation, suggesting that students with a strong understanding of the concepts perceived less difficulty. In contrast, bacterial inoculation techniques showed a negative correlation, indicating a mismatch between technical ability and perceived difficulty. The analysis provides a comprehensive view of the factors influencing the learning of microbial culture. The results show that students perceive bacterial inoculation techniques as the most challenging aspect, despite moderately skilled students demonstrating adequate technical ability. Potential sources of technical complexity in the inoculation process, such as steps requiring precision and access to hands-on equipment, contribute to students' perceived difficulty. Although the relationship between test scores and student perceptions of microbial culture learning has been explored in this study, additional research is needed to delve deeper into the complex factors that contribute to this relationship
Effectiveness of Biopesticides Nicotiana tabacum L and Ageratum conyzoides L As Controlling Spodoptera exigua in Red Onion (Allium ascalonicum L.)
Authors: Pradinata Rio , Ginting Tri Yaninta , Amrul Hanifa Mutia Z N
Published: May 2024

Shallots (Allium ascalonicum) are a commodity in Indonesia that has high economic value. One of the pests that often attacks and reduces shallot yields is the onion caterpillar pest S. exigua. Tobacco plants and babadotan weeds are types of plants that can be used as botanical pesticides as a method of controlling and preventing pest attacks on plants. Tobacco and babadotan plants contain secondary metabolite compounds such as alkaloids, flavonoids, saponins, terpenoids and tannins which are able to kill insect pests on shallot plants. The aim of this research is to determine the effectiveness of tobacco extract (Nicotiana tabacum L.) and Babadotan (Ageratum conyzoides L.) as control of the onion caterpillar pest Spodoptera exigua on shallots. The highest combined mortality rate was treated with T6 at 96JSP with an average of 75%,The lowest larval mortality percentage test was found in T2 with an average mortality result of 22.50%.The results of biosafety testing show that the combination of tobacco extract and babadotan extract cannot be used together. From the conclusions that have been obtained, the extracts of (Nicotiana tabacum L.) and (Ageratum conyzoides L.), both single extracts and combination extracts, are effective in controlling the pest S.exigua
Identification of Digestive Tract Worms in Javan Gibbons (Hylobates moloch) at Maharani Zoo
Authors: Siagian Tetty Barunawati , Pangestu Arjun , Yuliati Nani , Yudha Yudha
Published: May 2024

Worm infections in Javan gibbons often do not cause clinical symptoms, but have an impact on the health and performance of Javan gibbons, so a fecal examination is needed to determine the presence of worm infections in Javan gibbons. The aim of this research is to identify digestive tract worms that infect Javan gibbons at Maharani Zoo. The research was conducted on 3 Javan gibbons consisting of 2 males and 1 female with an age range of 6-14 years and a body weight of 4-6 kg. Macroscopic identification of worms in Javan gibbons showed an abnormality in one of the Javan gibbon's feces. The feces abnormality is in the form of a very soft consistency, with a brownish yellow color, and the feces has a foul odor. Microscopic identification of worms in Javan gibbons showed positive results for the presence of eggs and larvae Strongyloides in one of the Javan gibbons. The Strongyloides worm larvae identified were rhabitiform. The cause of worm infections in Javan gibbons was due to the vegetable feed given, namely water spinach and mustard greens, being contaminated with Strongyloides worm eggs. Prevention needs to be done to prevent contamination of worm eggs, including washing the vegetables.
O Pensamento Algébrico presente nas provas do Nível A da OBMEP
Authors: Alves Luana Leal , Daltoé Thaís , Roveda Crislaine de Anunciação , Silva João Alberto da
Published: May 2024

O presente artigo tem como objetivo geral descrever habilidades referentes ao Pensamento Algébrico presente nas questões das provas dos anos iniciais da Olímpiada Brasileira de Matemática das Escolas Públicas – OBMEP, por meio de um mapeamento das situações empregadas nas questões, a fim de identificar quanto a diversidade de funções propostas. O estudo é de cunho qualitativo tendo como delineamento a pesquisa documental, sendo utilizadas as provas das edições de 2018 e 2019 da Olímpiada direcionadas ao Nível A. Através de um levantamento de todas as questões, foi possível identificar que as cinco categorias referentes às situações de Pensamento Algébrico são contempladas, das quais oito referem-se ao tema. Identificou-se, também, que as imagens utilizadas nas questões possuem, preponderantemente, uma função de suporte para a resolução. De modo geral, as questões analisadas contextualizam as situações referentes ao Pensamento Algébrico, possibilitando estimular o estudo da Álgebra e propalar esses conceitos.
Tecnologias Digitais e Equação Vetorial da Reta: possibilidades e desafios do software GeoGebra
Authors: Pelli Débora , Pires Fernando de Carvalho
Published: May 2024

O objetivo deste artigo é analisar algumas possibilidades e desafios do uso do software GeoGebra, nos processos de ensino e de aprendizagem de conceitos relacionados à Álgebra Linear, especificamente as noções de Equação Vetorial da Reta, desenvolvidas num curso de Pós-Graduação durante o período de calamidade pública ocasionado pela pandemia da Covid-19. Na execução da pesquisa, os dados foram produzidos com alguns participantes do componente curricular de Álgebra Linear, oferecido pelo Programa de Pós-Graduação em Educação Matemática da Universidade Estadual Paulista (UNESP), Campus de Rio Claro, no segundo semestre do ano de 2020. Este estudo insere-se no paradigma qualitativo de pesquisa, cujo desenvolvimento metodológico partiu da Observação Participante. Os instrumentos de produção dos dados, por sua vez, se constituíram de Questionário e de Registro Audiovisual, cujo contexto de obtenção ocorreu em um Seminário Avaliativo no âmbito do componente curricular tomado como referência. Durante a realização deste Seminário, utilizamos o software GeoGebra para apresentar os conceitos e desenvolver as atividades inerentes ao tema abordado, no intuito de observar o processo de visualização, construção e exploração desses conceitos. Para a análise dos dados, apoiamo-nos na perspectiva epistemológica associada à Teoria da Atividade e ao Construto Seres-Humanos-Com-Mídias. Os resultados indicam que a utilização do GeoGebra nas práticas educativas relacionadas à Equação Vetorial da Reta pode potencializar a aprendizagem de conceitos abstratos e desenvolver habilidades cognitivas de visualização, construção e exploração.
Atividade orientadora de ensino e o conceito de subtração: repensando ações educativas pós-pandemia
Authors: Silva Jhenifer Licero Schuete , Arrais Luciana Figueiredo Lacanallo , Gil Maria Luiza Evangelista
Published: May 2024

O presente artigo tem como objetivo repensar o ensino da subtração nos anos iniciais do Ensino Fundamental, com base na Atividade Orientadora de Ensino (AOE), levando em consideração o retorno às aulas presenciais após, quase, dois anos com o Ensino Remoto Emergencial (ERE). A pergunta norteadora deste estudo foi: como podemos reorganizar o ensino, buscando promover a apropriação do conhecimento após a pandemia e seus desdobramentos preocupantes nos aspectos de desenvolvimento e aprendizagem dos alunos? Entende-se que após o retorno das aulas presenciais temos novos sujeitos envolvidos no ensino, impactados com o contexto sócio-histórico vivenciado pela pandemia da covid-19. Por meio de um relato de experiência de caráter descritivo e qualitativo, evidenciamos princípios teóricos e metodológicos que podem auxiliar no processo de escolarização. Essa pesquisa aponta a necessidade de reconhecer que os estudantes, após a pandemia da covid-19, trazem outras especificidades que não podem ser ignoradas pela educação, tanto em relação ao desenvolvimento dos discentes quanto aos conteúdos e instrumentos didáticos. A partir destes princípios, é preciso repensar as práticas educativas de modo a assegurar a função social da escola de transmitir o conhecimento historicamente elaborado e possibilitar que o desenvolvimento das máximas potencialidades humanas seja garantido.
Os por quês matemáticos da educação básica: compreensões de um grupo de licenciandos da UFPE
Authors: Andrade Mikaelly Silva , Queiroz Simone Moura
Published: May 2024

Os por quês matemáticos são questionamentos relacionados a algum procedimento matemático ou a seu resultado. Este artigo, recorte de um Trabalho de Conclusão de Curso, traz resultados de um estudo de caráter exploratório, com abordagem qualitativa. O objetivo do presente estudo foi analisar a postura de um grupo de licenciandos do curso de Matemática da Universidade Federal de Pernambuco – UFPE frente a alguns por quês matemáticos que surgem na educação básica. Para a obtenção dos dados, que nortearam as análises e resultados deste trabalho e contribuíram para o alcance do nosso objetivo, utilizamos um questionário online composto de quatro perguntas subjetivas. Sendo este, respondido por vinte e um licenciandos do curso de Matemática da UFPE. De modo geral, constatou-se que grande parte dos participantes se sentem inseguros diante dos por quês matemáticos, e poucos conseguem argumentar sobre esses questionamentos de uma maneira que possa proporcionar que o aluno construa o seu conhecimento com significado.