bluuebunny/crossref_metadata_2025 huggingface dataset:
Accuracy of Two Methods in Estimating Target Muscle Force During Shoulder Submaximal Isometric Contractions
Authors: Griech Sean F. , Karagiannopoulos Christos
Published: January 2025

Background

Submaximal isometric exercises are used for pain control and neuromuscular facilitation. Typically, an ipsilateral maximal voluntary isometric contraction (MVIC) is used as a reference; however, when this is not clinically feasible, an alternative must be considered. Two options are (1) the no reference (NR) method (submaximal contraction at a self-perceived effort level without reference) and (2) the reciprocal reference (RR) method (MVIC on the contralateral side serves as a reference for a submaximal effort-level on the ipsilateral side). No research evidence exists as to which alternative method is more accurate at the shoulder.

Purpose

To determine the accuracy of the NR and RR methods in estimating target muscle force during shoulder ER and IR submaximal isometric contractions among healthy adults.

Study Design

Observational cross-sectional

Methods

Isometric shoulder force was measured via a hand-held dynamometer on 48 healthy participants (36 females and 12 males) mean age of 27.4 ±1.6 years. Both methods (NR and RR), direction of force (IR and ER), and starting test-side (right or left) were randomized. RR testing involved a contralateral MVIC (reference) prior to a 50% submaximal contraction. NR testing entailed a 50% submaximal contraction with no prior reference MVIC.

Results

Actual submaximal efforts were compared to MVIC-based estimated submaximal efforts. Significant moderate - good correlations existed for both the RR (r = 0.691) and NR (r = 0.620) methods, regardless of test-side or shoulder motion. Significant moderate - good correlations were found between both methods for both ER [RR (r = 0.717) and NR (r = 0.614)] and IR [RR (r = 0.669) and NR (r = 0.628)].

Conclusion

Both methods had moderate - good accuracy levels and were not influenced by the test side or direction of force. Either method (RR or NR) can be equally useful for shoulder isometric exercise prescription when an ipsilateral reference cannot be determined.

Level of Evidence

3
Range of Motion and Muscle Stiffness Differences in Junior Tennis Players with and without a History of Shoulder Pain
Authors: Colomar Joshua , Peña Javier , Vicens-Bordas Jordi , Baiget Ernest
Published: January 2025

Background

Due to its significant unilateral predominance, tennis can provoke functional and morphological asymmetries that develop over time and may result in undesired morphological alterations.

Hypothesis/Purpose

The goals of this study were a) to assess glenohumeral range of motion and muscular stiffness in young tennis players with and without a history of shoulder pain and b) to examine interlimb asymmetries in these variables in both groups. It was hypothesized that players with a history of shoulder pain would show a reduced glenohumeral internal rotation (IR) and total arc of motion (TAM) and increased stiffness in internal rotator muscles compared to those without shoulder pain.

Study Design

Cross-sectional observational study.

Methods

Twenty-five participants participated in the study (11 with a history of shoulder pain and 14 without pain). Participants performed stiffness measurements on muscles involved in the main tennis stroke motions alongside range of motion examinations on the dominant (D) and non-dominant (ND) extremities including IR, external shoulder rotation (ER), and TAM. A two-way mixed-design ANOVA analyzed group and limb effects, with effect sizes classified as small, medium, or large. Significant effects were further examined using Bonferroni post hoc tests.

Results

There were significant differences between the shoulder pain and no shoulder pain group in the D IR (-3.1º, 6.43%, p = 0.048; effect size [ES] = 0.58) and D TAM (-6.1º, 3.01%, p = 0.024; ES = 0.66). Moreover, significant differences were found between the D and ND extremities in IR in both groups (-9.2º, 14.94%, p < 0.001; ES = -1.72) and TAM in the shoulder pain group (-5.6º, 2,77%, p = 0.038; ES = 0.61). Stiffness measurements showed no significant differences between groups or extremities.

Conclusions

Significantly lower values of D IR and TAM and higher IR asymmetries in the shoulder pain group suggest that a deficit in these parameters could be associated with shoulder pain history in junior competitors.

Level of Evidence

2
High Prevalence of Low Back Pain in College Rifle Athletes
Authors: Urbach Bailey , Mansfield Cody , Harr Mica , Briggs Matthew S. , Onate James , Boucher Laura
Published: January 2025

Background

The sport of rifle places unique physical demands on its athletes relative to other collegiate sports, including maintaining lumbar-straining positions for extended time. Anecdotal reports of low back pain (LBP) are common among collegiate rifle athletes, but the prevalence of LBP in this population has not yet been established in the literature.

Purpose

The purpose of this study was to survey collegiate rifle athletes to quantify the prevalence and impact of low back pain in this population and identify possible contributing factors including the COVID-19 pandemic. It was hypothesized that over 50% of athletes would report an episode of LBP due to participation in collegiate rifle events.

Study Design

Cross-Sectional Study

Methods

Athletes at least 18 years of age who were members of a collegiate rifle program during the 2019-2020 season were surveyed via an online questionnaire. The questionnaire included four sections: (a) demographics, (b) presence of LBP, (c) the impact of pain episodes on daily activities, and (d) shooting stance and training characteristics.

Results

Responses from 114 athletes were collected. A total of 101 (89%) respondents indicated having experienced at least one episode of LBP. Of those, 24% also missed at least one day of training or competition during the 2019-2020 season because of LBP. During the COVID-19 pandemic, 60% were unable to receive the same level of medical care while 69% experienced equal or greater pain levels. An association between sex and LBP was statistically significant (p<0.001).

Conclusion

There is a high prevalence of LBP in collegiate rifle athletes. It is necessary for Athletic Training staff and other medical professionals to be aware of this for prevention and treatment, as it has significant impacts including missed playing time. More research on predisposing factors such as sex and training duration or positional characteristics would benefit management of this injury.

Level of Evidence

3
Sürdürülebilirlik Düzeyleri Halka Açık Enerji İşletmelerinin Kârlılık Oranlarını Etkiliyor mu BİST Elektrik Endeksi Üzerine Bir Araştırma
Authors: Tümer Tolga , Sayar Ali Rıza Zafer
Published: January 2025

Teknolojik cihazların hane halkları ve işletmeler tarafından kullanımının yaygınlaşmasıyla birlikte enerji ihtiyacı artmış; enerji üretimi sürdürülebilirlik açısından önem kazanmıştır. Temel amacı kâr ve değer maksimizasyonu olan enerji işletmelerinin sürdürülebilirlik ilkelerine uyabilmesi için ise sürdürülebilirliğin kârlı olması gerekmektedir. Çalışmada, enerji sektöründeki işletmelerin sürdürülebilirlik düzeyleri ile kârlılıkları arasındaki ilişki istatistiki olarak araştırılmıştır. Çalışma sonuçları, enerji sektöründeki işletmelerin sürdürülebilirlik düzeyleri ile kârlılıkları arasında anlamlı bir ilişki bulunmadığını ortaya koymaktadır. Çalışmada, sürdürülebilirliğin enerji sektöründeki işletmeler açısından dolaylı olarak kârlı hale getirilebileceği tartışılmaktadır.
Sürdürülebilirlik ve Kurumsal Raporlama: Tarihsel ve Kavramsal Yaklaşım
Authors: Tutar Salih , Keskin Duygu Anıl
Published: January 2025

Günümüzde işletmeler, sadece finansal başarılara odaklanmakla birlikte yarattıkları etkileri ekonomik açıdan, çevresel açıdan ve sosyal açıdan da değerlendirerek sürdürülebilirlik performanslarını artırmaya çalışmaktadır. Yatırımcılar da giderek daha fazla işletmenin sürdürülebilirlik stratejileri ve performansına odaklanmaktadır. Bu makale, sürdürülebilirlik kavramını tarihsel gelişimi, ilkeleri, sürdürülebilirlikle ilgili makaleler ve raporlama pratikleri açısından kavramsal olarak ele almaktadır. Çalışmanın, literatüre katkı sağlaması ve işletmelerin sürdürülebilirlik hedeflerine ulaşmalarına rehberlik etmesi beklenmektedir. Makale, sürdürülebilirliğin ekonomik, sosyal ve çevresel boyutlarını ayrıntılı bir şekilde incelemekte ve bu her bir boyutun aynı anda ele alınması gerektiğini vurgulamaktadır. Ekonomik boyut, insan refahını artırmayı hedeflerken; sosyal boyut, eşitlik ve sosyal adalet üzerine odaklanmaktadır. Çevresel boyut ise doğal kaynakların korunması ve ekosistemlerin sürdürülebilirliği üzerine yoğunlaşmaktadır. OECD'nin sürdürülebilirlik tanımı ve sürdürülebilir kalkınma endeksleri ile ilgili güncel uygulamaları da makalede yer almaktadır. Sürdürülebilirlik raporlaması, GRI G4 standartları ve BM Küresel İlkeler Sözleşmesi gibi uluslararası standartlar ve kılavuzlar çerçevesinde ele alınmıştır. Son olarak, makale sürdürülebilirlik performansının işletmelar ve yatırımcılar için önemi üzerinde durarak, sürdürülebilirlik raporlamasının şeffaflık ve güvenilirlik sağlamadaki rolünü vurgulamaktadır. Bu bağlamda, sürdürülebilirlik faaliyetlerinin uzun vadeli değer yaratma ve risk yönetimi üzerindeki etkileri tartışılmaktadır.
Farklı Piyasa Koşulları Altında Petrol Fiyat Belirsizliğinin Enerji Sektörlerinin Hisse Senedi Getirilerine Etkisi: Asya Pasifik Ekonomik İşbirliği Ülkelerinden Kanıtlar
Authors: Güngör Selim
Published: January 2025

Bu çalışmanın amacı, 04.01.2012-19.09.2024 dönemi için petrol fiyat belirsizliğinin seçilmiş APEC ülkelerinin enerji sektörlerinin hisse senedi getirilerine etkisini çeşitli ekonomik koşullar altında ortaya koymaktır. Eş anlı kantil regresyon analizi neticesinde, tüm enerji sektörleri için geliştirilen modellere göre ekonominin genişleme dönemlerinde petrol fiyat belirsizliğindeki artışın enerji sektörlerinin hisse senedi getirilerini azaltırken, ekonominin daralma dönemlerinde artırdığı gözlemlenmiştir. Ayrıca, Kanada ve Güney Kore enerji sektörleri için geliştirilen modeller hariç diğer tüm modellere göre normal piyasa koşullarında petrol fiyat belirsizliğindeki artışın enerji sektörlerinin hisse senedi getirilerini azalttığı tespit edilmiştir. Son olarak, Kanada için geliştirilen modellere göre, normal piyasa koşullarında değişkenler arasında U şeklinde bir ilişki varken, Güney Kore için geliştirilen modellere göre, petrol fiyat belirsizliğindeki artışın enerji sektörünün hisse senedi getirilerini artırdığı bulgularına ulaşılmıştır. Sonuç olarak bulgular, politika yapıcıların ve risk yöneticilerinin APEC üyesi ülkelerin enerji sektörü yatırım kararlarını ve sektör rotasyon stratejilerini petrol fiyat belirsizliğinin etkisini de dikkate alarak yürütmesi gerektiğini vurgulamaktadır.
Seyahat ve Turizm Gelişmişlik Endeksi Göstergelerinin PSI ile Ağırlıklandırılması: Avrupa ile Avrasya Ülkeleri Üzerine bir Araştırma
Authors: Şimşek Yağlı Burcu
Published: January 2025

Seyahat ve Turizm (TveT) sektörü, küresel ekonomiye önemli katkılar sunarak ülkelerin ekonomik ve kültürel kalkınmalarını desteklemektedir. Seyahat ve Turizm Gelişmişlik Endeksi (TTDI) ise, bir ülkenin turizm potansiyelini ölçen önemli bir göstergedir ve 2021'den itibaren seyahat ve turizm sektöründeki sürdürülebilirlik ve dayanıklılık odaklı bir yaklaşım sunmaktadır. Literatürde bu alanda yapılan çalışmalar olmasına rağmen, endeks göstergelerinin ağırlıklandırıldığı ve ülkelerin sıralandığı çalışmaya rastlanamamıştır. Bu nedenle bu çalışmanın amacı, 2024 yılına ait veriler kullanılarak ve PSI yönteminden faydalanılarak TTDI endeks göstergelerinin ağırlıklandırılması, Avrupa ve Avrasya ülke grubunun ağırlıklandırılmış matrise göre sıralanması ve bu sıralamanın TTDI raporunda yer alan sıralamalar ile karşılaştırılmasıdır. Bulgular neticesinde, en önemli gösterge olarak Kültürel Kaynaklar, en az önemli gösterge olarak Kara ve Liman Altyapısı belirlenmiştir. Ülke sıralamalarında ise İspanya ilk sırada yer alırken, Tacikistan son sırada yer almaktadır. Bulgular, rapor sıralamaları ile benzerlik gösterse de bazı noktalarda farklılaşmaktadır.
E-Defter Uygulamasının Vergiye Tabi Gelire Etkisi: Malatya Kayısı İşletmeleri Örneği
Authors: Ataman Mehmet Ender , Aksu İbrahim
Published: January 2025

E-defter sistemi, kağıt defterlerin elektronik ortamda tutulmasını sağlayan bir sistemdir. Türkiye'de Gelir İdaresi Başkanlığı tarafından yürütülen bu sistem, Vergi Usul Kanunu ve Türk Ticaret Kanunu hükümlerine uygun olarak, işletmelerin defterlerini dijital ortamda oluşturmalarına, kaydetmelerine ve saklamalarına olanak tanır. Çalışmada, Türkiye’de 13 Aralık 2011 tarihli "Elektronik Defter Genel Tebliği" ile uygulamaya geçirilen e-defter sisteminin Malatya’da kayısı ticareti yapan işletmelerin vergiye tabi gelirleri üzerindeki etkisi incelenmiştir. Türkiye, Dünya’da kayısı üretiminde birinci sıradadır. 2017 yılında, Malatya Kükürtlü Kuru Kayısı'sı, kendine özgü nitelikleri ve yapısıyla Avrupa Birliği Komisyonu tarafından "Malatya Kayısısı" olarak tescillenmiş ve ilan edilmiştir. Bu durum, Malatya kayısısına hem yurtiçi hem de yurtdışı piyasalarda rakiplerine karşı belirgin bir avantaj sağlamıştır. Bu üstünlük sayesinde Malatya’da kayısı ticareti önemli bir ivme kazanmış özellikle ihracat büyük gelir kaynağı olmuştur. Araştırma Malatya ilinde en yüksek hacimli ihracat yapan 5 işletme üzerinden gerçekleştirilmiştir. İşletmelerin e-defter kullanıcısı olması şartı aranmıştır. İşletmelerin e-deftere geçmeden önceki 5 yıllık gelir tablosu kalemlerindeki veriler ile e-deftere geçtikten sonra günümüze kadar olan gelir tablosu kalemlerindeki veriler alınmıştır. Araştırmada e-defter uygulamasının vergisel açıdan kamuya ve işletmelere getirdiği yenilikler araştırılmıştır. Malatya’da faaliyet gösteren 5 kayısı işletmesinin e-deftere geçmeden önceki ve geçtikten sonraki gelir tabloları analiz edilmiştir. Araştırma sonucunda, işletmelerin e-deftere geçişi sonrası vergiye tabi gelirlerinde düzenli bir artış olmadığı tespit edilmiştir. E-defterin kamu vergi gelirlerini beklenen düzeyde artırmadığı gözlemlenmiştir.
Processo de Renovação Generalizado baseado na distribuição Gumbel como modelo de estimativas de ocorrências de ondas de calor para auxílio no processo de tomada de decisão do cultivo de manga no Sertão de Pernambuco/Bahia
Authors: Cristino Cláudio , Ferraz Kimbelly , Sibinde José Portez
Published: January 2025

Processos de Renovação Generalizada (PRG’s) vêm sendo utilizados em Análise de Sobrevivência/Confiabilidade com bastante sucesso, particularmente para modelar tempos entre eventos indesejados de falhas em equipamentos eletromecânicos, falhas essas que acarretam enormes prejuízos para empresas. Assim, PRG’s são importante ferramenta na Engenharia de Manutenção e em processos de tomada de decisão que envolvam a previsão de riscos associados a diversas operações industriais e na agropecuária. Mais recentemente, Cristino et al. (2020) implementaram um modelo de PRG baseado na distribuição Gumbel (GuGRP, abreviação do inglês Gumble (based) generalized renewal process) na previsão de crises econômicas (resseções) no mercado estadunidense. Este fato levou os autores a verificar a usabilidade deste modelo em previsões de ocorrências de eventos meteorológicos raros, particularmente, na modelagem de ondas de calor no sertão pernambucano. De fato, aqui será apresentada a modelagem GuGRP aplicada a dados de ondas de calor na região agrícola de Petrolina-PE/Juazeiro/BA como base de tomada de decisão no cultivo da manga nessa localidade. Os resultados apresentam ótima aderência dos dados ao modelo proposto indicando esta metodologia como pertinente a este sistema de produção.
Avaliação temporal do uso e ocupação do solo e da disponibilidade hídrica do médio curso rio Piracicaba entre 2011 e 2020
Authors: Dias Dimária Aparecida Fernandes , Gonçalves José Augusto Costa
Published: January 2025

Os recursos hídricos são essenciais à sobrevivência dos seres vivos e ao desenvolvimento econômico. As formas de uso e ocupação do solo podem afetar o meio ambiente e os corpos d’água, e desencadear alterações negativas a estes recursos. A área de estudo engloba a região do médio curso do rio Piracicaba, que possui atividades com alto potencial de impacto ao meio ambiente e aos recursos hídricos, sendo o rio Piracicaba o seu curso d’água principal. O objetivo principal desta pesquisa é obter um diagnóstico do comportamento da vazão e precipitação e do uso e ocupação do solo do médio curso do rio Piracicaba-MG nos anos 2011 e 2020. Foram geradas cartas de uso e ocupação do solo, analisado o comportamento pluviométrico/fluviométrico, por meio de dados das estações de monitoramento, e verificada a inter-relação entre estes fatores. A maior parte da sub-bacia é ocupada por formação florestal (45,11%), seguido pelas áreas de pastagens (31,23%), destaca-se que na região há localidades com criação de gado, o que justifica a manutenção de áreas de pastagens visando a produção agropecuária. A classe mosaico de agricultura e pastagem obteve 11,49%. A classe floresta plantada compõe 8,07%, havendo na região áreas de reflorestamento de eucalipto para produção de celulose e de carvão vegetal para abastecer siderúrgicas. Verificou-se o aumento das classes mineração, agricultura e pastagem, formação florestal, floresta plantada e ocorreu diminuição de pastagens e classes rios e lagos. Houve diferença significativa no índice de chuvas nos períodos estudados e também variação nas vazões médias diárias do rio Piracicaba entre alguns períodos.
Absorção foliar de nutrientes pela videira em Argissolos do submédio do Vale São Francisco, semiárido do nordeste do Brasil
Authors: Giselle Gomes Monteiro  , De Brito Santana Mayame , Rosas Ribeiro Filho Mateus , Gomes de Almeida Brivaldo , Pereira Giuliano Elias , Cury Fracetto Felipe José
Published: January 2025

The growth of vines in a semi-arid tropical environment climate is heavily influenced by soil type and its chemical and physical attributes. This work investigated the relationship between soil properties and leaf nutrient absorption in the São Francisco Valley vineyards, northeastern Brazil, to contribute to wine production. Five types of soils were selected, under crops of Tempranillo and Syrah grape varieties conducted in an espalier system. The soils were classified as Argissolo Vermelho-Amarelo (Ultisol) (PVA) with clay texture and four Argissolos Amarelos (Ultisols), (PA1, PA2, PA3, and PA4) with medium/clayey, medium/clayey, sandy/medium, respectively. Morphological characteristics were determined in the grapevine field, while physical and chemical attributes of the soil and nutritional contents of the leaf were analyzed in the laboratory. No differences were found in nutrient contents in the grape leaves during maturation. The subsurface of PVA had a suitable distribution of nutrients, pH, base sum, and clay content, which is favorable for the development of vines. Although PA2 has had high contents of phosphorus (436 mg kg-1) and total organic carbon (25 g kg-1) in its shallow horizons (0-10 cm), a higher bulk density (~2.0 kg dm-3) and a lower total porosity (~30%) were found in the diagnostic horizons, as occured in Argissolo PA3, thereby jeoperdizing the infiltration of water into the soil and the quality of the grapes, consequently. In general, Argissolo Vermelho-Amarelo was the most promising for obtaining fine-quality grapes for wine production.
Flora epifítica em fitofisionomias do Parque Estadual do Utinga Camillo Viana, Belém, Pará, Brasil
Authors: Miranda Ádria Maria da Silva , Brito Evellyn Garcia , Jardim Mário Augusto , Ferreira Leandro Valle
Published: January 2025

O objetivo foi comparar a flora epifítica em fragmentos de vegetação do Parque Estadual do Utinga em condições de borda e de interior e sua influência na riqueza e composição de epífitas. O estudo foi realizado na Unidade de Conservação, Parque Estadual do Utinga Camilo Viana na cidade de Belém (PA) com inventários florísticos em campinarana, floresta de várzea e floresta de terra firme. A floresta de terra firme foi dividida em condições de borda (recentes e antigas) e condição de interior (fora de bordas) com a distância mínima entre os pontos de amostragens de 50 a 100 metros. Os resultados mostraram seis epífitas na campinarana sendo Vanilla pompona como o primeiro registro para o estado do Pará. Na floresta de terra firme e de várzea identificadas 20 e 16 espécies, respectivamente. O gênero mais importante foi Philodendron com 10 espécies e P. gutifferum e P. Callosum abundante.  A riqueza de epífitas foi maior na floresta de terra firme de interior em comparação as condições de bordas recentes e antigas. Na floresta de várzea, a composição de epífitas foi distinta entre as fitofisionomias. O número de epífitas foi elevado demonstrando a importância para conservação em uma Unidade de Conservação vulnerável aos impactos antrópicos recorrentes na cidade de Belém.
Suscetibilidade Erosiva da Bacia do Rio São José no Município de Francisco Beltrão – PR
Authors: Guimarães Elisete , Tomazoni Julio Caetano , Tomazoni Eduardo Caetano
Published: January 2025

Neste trabalho avalia-se a suscetibilidade natural à erosão e a suscetibilidade natural à erosão aliada à ocupação dos solos, da Bacia do Rio São José, no Município de Francisco Beltrão, PR, mais precisamente na Localidade de Nova Seção. Ao avaliar a suscetibilidade erosiva dos solos e da declividade em relação à posição na paisagem, foi possível determinar a suscetibilidade à erosão natural da bacia. Com base nesses parâmetros, constatou-se que ela é altamente suscetível à erosão natural, pois as classes alta e muito alta compreendem 89,5% do território. Já, quantificando a suscetibilidade natural à erosão aliada à ocupação do solo e avaliando a suscetibilidade erosiva dos solos da declividade e em relação a posição na paisagem, a erosão ficou de média a alta, de modo que somando essas duas classes totalizam 79,7% de toda a bacia. Assim sendo, destaca-se a importância do uso do solo na atenuação dos processos erosivos nessa bacia, visto que 56,3% de seu território apresenta-se coberto com matas, fato que comprova que as classes de suscetibilidade natural à erosão que eram de altamente suscetíveis natural à erosão em 89,5% do território, quando aliadas à ocupação dos solos passam para média a alta, e perfazem 79,7% de toda a bacia. Estatisticamente as duas formas de suscetibilidade estão correlacionadas em 46,5867%, indicando uma correlação fraca e são diferentes em 53,4133%.
Estrutura populacional e nível de exploração de plantas medicinais pelos índios Fulni-ô no Nordeste do Brasil
Authors: Santos Souza André , Marcelino Monteiro Júlio , Da Silva Santos Suellen , Da Costa Ferreira Ezequiel , Farias Paiva de Lucena Reinaldo
Published: January 2025

O estudo analisou o processo de coleta de casca de Myracroduon urundeuva Allemão (aroeira) e Syderoxylon obtusifolium (Humb. ex Roem. & Schult.) T.D.Penn. (quixaba), e avaliou a sua estrutura populacional. O estudo foi conduzido na Reserva Indígena Fulni-ô, município Águas Belas em Pernambuco. Para analisar a estrutura populacional e nível de extração foram plotados 200 pontos quadrantes, além do método de caminhamento na mata do Ourucuri, sendo registrados 143 indivíduos de aroeira e 161 de quixaba. Os resultados mostraram que ainda existe uma grande utilização da casca dessas espécies e as populações não exibiram o modelo do J-invertido, característico de populações estáveis. O uso madeireiro associado aumenta ainda mais a pressão de uso sobre suas populações. Com os resultados obtidos, recomenda-se que um plano de manejo sustentável para estas espécies seja realizado, visando mitigar os impactos causados pela coleta excessiva de recursos medicinais e madeireiros.
Composição e diversidade florística das árvores presente nos bairros centrais da cidade de Altamira
Authors: Feio Elnatan , Herrera Raírys Cravo , Veloso Gabriel , Azevedo Rodrigo , Haroldo  , Parry Maurício
Published: January 2025

Considerando a importância da cobertura arbórea de uma cidade por proporcionar diversos fatores como: embelezamento, sombreamento, melhoria do clima local diminuição a sensação térmica e melhorando a qualidade de vida dos cidadãos, faz-se necessário conhecer quais espécies compõem a arborização da cidade, portanto, este estudo teve como objetivo estudar a arborização em três bairros da Zona Central da cidade de Altamira. Para isso, realizou-se o censo arbóreo dos indivíduos presentes nas vias, alamedas e áreas públicas para identificar taxonomicamente as espécies presentes nesses bairros e determinar os Índices de Diversidade de Shannon-Weaver e Simpson e a Equabilidade de Pielou. Foram registrados um total de 792 indivíduos arbóreos, divididos em 59 espécies, pertencentes à 41 famílias botânicas, deste total identificados, verificou-se que 73% são espécies exóticas e 27% nativas. O Índice de Shannon-Weaver nos bairros Premem, Jardim Uirapuru e Esplanada do Xingu, atingiram os valores de 1.73, 1.81, 2.28; a Equabilidade obteve os valores 0.65, 0.57, 0.72; enquanto que para o Índice de Simpson, atingiram os seguintes valores 0.69, 0.71, 0.85, respectivamente. Portanto, orienta-se pela implantação de uma efetiva arborização na cidade para que cumpra o papel de amenização do clima urbano possibilitando uma melhor qualidade de vida aos habitantes, priorizando espécies nativas da floresta Amazônica como estratégia de potencialização de serviços ambientais
Uso do Processo Analítico Hierárquico (PAH) e de fatores multi-influenciadores para avaliar as interconexões entre as águas superficiais e subterrâneas numa pequena bacia hidrográfica em Minas Gerais
Authors: Gonçalves José Augusto Costa , Almeida Milena Stefany Lage
Published: January 2025

A água que integra a paisagem e garante a perenidade de diferentes sistemas ambientais é um dos recursos primordiais para o pleno desenvolvimento das atividades humanas. Ainda que em diferentes matrizes, superficial e subterrânea, a água deve ser avaliada e gerenciada de forma integrada. A sub-bacia do rio do Peixe-MG está em sua maior parte assentada sob terrenos cristalinos, um ambiente composto por falhas, fraturas e rocha alterada nas quais permite a percolação e armazenamento das águas. Para entender o potencial das águas subterrâneas na região e sua contribuição nas águas superficiais, faz-se necessário, investigar as trocas quantitativas entre esses dois escoamentos. Dessa forma, este trabalho tem como objetivo identificar as interconexões hidráulicas entre o fluxo superficial e subterrâneo, por meio do estudo dos parâmetros hidrodinâmicos, caracterização geológica-estrutural e análise multicritério. Adicionalmente, e por meio da análise multicritério verificou-se influência principalmente das camadas de solo e geologia na definição das áreas de maior potencialidade hídrica subterrânea da sub-bacia.
Avaliação Físico-Química e Microbiológica da Água Subterrânea da Bacia Igarapé Tancredo Neves em Porto Velho- Rondônia
Authors: TORGESKI DOS SANTOS LAIS HELENA , PEREIRA DA SILVA FILHO ELIOMAR
Published: January 2025

A importância vital da água para a humanidade tem sido objeto de crescente preocupação, com ênfase na garantia da sua qualidade. O interesse e a busca pela qualidade da água nos últimos tempos tem sido destaque em diversos eventos e estudos. Os impactos causados pela humanidade podem trazer diversas consequências, muitas das vezes irreversíveis para esse bem que é, sem dúvidas, essencial. Águas subterrâneas são utilizadas para várias finalidades, principalmente para o consumo humano, desta forma é importante que essa água esteja potável. Este estudo visou avaliar a qualidade da água subterrânea na Bacia do Igarapé Tancredo Neves, em Porto Velho, seguindo os padrões de potabilidade estabelecidos pela Portaria de Consolidação n°. 05/2017 do Ministério da Saúde. Foram analisadas 70 amostras de poços amazônicos e artesianos, coletadas em dois períodos distintos: 35 durante a estiagem e 35 na época de chuvas. Os parâmetros físico-químicos e microbiológicos foram examinados em 12 bairros abrangidos pela área de estudo. Os resultados revelaram deficiências no saneamento básico de Porto Velho, refletindo diretamente na qualidade da água subterrânea. Notavelmente, 61,43% das amostras, em ambos os períodos, apresentaram valores de pH fora do limite recomendado. Apenas 5 amostras do período chuvoso testaram negativo para contaminação bacteriológica, confirmando suspeitas de contaminação. Durante a estiagem, 10 amostras também obtiveram resultados negativos, indicando inadequação para consumo humano.
Classification of Melanoma Cancer Using Deep Convolutional Neural Networks
Authors: Güneş Ali , Dönmez Emrah
Published: January 2025

Accurate detection of skin diseases is crucial in healthcare, with early diagnosis being particularly vital for effective treatment. Melanoma, a form of skin cancer with a high potential for metastasis, requires early detection to significantly improve treatment success and prevent further spread across the skin. This study investigates the application of machine learning techniques to diagnose skin lesions, focusing on differentiating between benign moles and malignant melanoma. A Convolutional Neural Network (CNN) model was developed to explore machine learning's efficacy in this context. The initial model featured a primary architecture, progressively refined by adding additional layers and filters to increase its complexity. This iterative enhancement aimed to improve the model’s capability to extract and analyze features from skin images. Each model configuration was meticulously evaluated through a series of experiments to determine its diagnostic performance. The results revealed that the proposed CNN model achieved a high accuracy rate of 91\%. This significant finding demonstrates the effectiveness of machine learning approaches in the early diagnosis and management of melanoma. The study confirms that advanced CNN architectures can enhance diagnostic precision, thereby contributing to improved patient outcomes in detecting and treating skin diseases.
Classifying Sunn Pest Damaged and Healthy Wheat Grains Across Different Species with YOLOV8 and Vision Transformers
Authors: Çolak Melike , Özkan Özgü , Pervan Akman Nergis , Berkol Ali , Olgun Murat , Budak Başçiftçi Zekiye , Ayter Arpacıoğlu Nazife Gözde , Sezer Okan , Ardıç Murat
Published: January 2025

Sunn pest damage is one of the most crucial types of agricultural damage. Authorities and farmers are working together to find a cost-effective solution for separating the damaged crops from the healthy ones. This challenge can be tackled cost-effectively with emerging technology. Over time, the number of researchers focusing on this problem by using various machine learning algorithms and image processing techniques has increased. This paper presents an approach using a recurrent neural networks-based transformer to identify different varieties of wheat grain that have been sunn pest-damaged and healthy. First, wheat grains were separated from each other using YOLOv8. Then, the dataset was enriched with different data augmentation techniques, and data-efficient vision transformers were used to classify sunn pest-damaged and healthy grains. Conversely, a high accuracy score of 98.61% was achieved on the augmented dataset while surpassing the accuracy score of 93.36% in the raw dataset. This paper's contributions to literature can be divided into three categories. In contrast to the previous research, perfectly shaped, broken, and half-wheat grains are used to better fit findings in real-life environments such as factory production lines. Moreover, this study employs a combination of augmentation techniques, implying that two separate augmentation techniques, texture-based and one morphological, were applied to the same image. Finally, no study in the available literature uses a vision transformer to classify healthy and sunned pest-damaged wheat grains. That leads to using a data-efficient vision transformer algorithm and achieving a high accuracy score of 98.61%.
Theoretical Calculations and Molecular Docking Analysis of 4-(2-(4-Bromophenyl)Hydrazineylidene)-3,5-Diphenyl-4H-Pyrazole Molecule
Authors: Gören Kenan , Bağlan Mehmet , Tahiroğlu Veysel , Yıldıko Ümit
Published: January 2025

The molecular structure of 4-(2-(4-bromophenyl)hydrazineylidene)-3,5-diphenyl-4h-pyrazole (BHDH) molecule, which is a pyrazole derivative, was investigated theoretically using the Gaussian 09 program according to the Moller-Plesset (MP2) method. The MP2 method was optimized for these theoretical calculations using DGDZVP and 6-311G(d,p) basis sets. By taking geometric structures, Highest-Energy Molecular Orbital (HOMO) and Lowest-Energy Molecular Orbital (LUMO) analysis, Mulliken Atomic Charges, Molecular Electrostatic Potential (MEPS), Nonlinear Optical (NLO) features, and Natural Bond Orbital (NBO) images of the molecule from this optimized structure were analyzed. In the continuation of the study, Absorbed, Distributed, Metabolized, and Excreted (ADME) analysis was performed to evaluate the BHDH molecule as a drug. Many possible drugs for treating various medical diseases have taken their place in the world market. Drug interactions involve combinations with drugs or other substances that change the effect of a drug on the body. Molecular docking analysis of BHDH molecule on obesity disease was performed with acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes. The highest binding energies and binding conformations between ligands and enzymes were predicted.
Assessing Drainage Performance of Turfgrass Rootzone in Sports Fields
Authors: Kesgin Erdal , Gezici Kadir , Tan Kesgin Remziye İlayda , Ağaçcıoğlu Hayrullah , Karaagaçli Mustafa , Sağlam Mehmet Turgut
Published: January 2025

Sports fields are used by many national and international organizations worldwide. For this reason, carefully studying the hydraulic and mechanical properties of sports field surfaces is a major engineering concern. This study aimed to increase sports turf's resilience and determine the mixing ratios and fertilizer doses in the rootzone in order to enable effective water drainage. In the field test, the mixture of 3 different soils (100% sand; 10% mixture + 90% sand; 20% mixture + 80% sand) was used for the mix of 70% ryegrass (Lolium perenne L.) and 30% bluegrass (Poa pratensis L.) in baskets with a size of 1.3 x 0.5 x 0.20 m. Moreover, the turfgrasses were grown through the application of two different doses (2.5 ml (A) and 3.0 ml (B)) of liquid humic acid named Run/Black Jak in addition to basic fertilization of 18-22-0 (slow-release fertilizer) + Nu Film spreader-sticker + 26-05-11 (slow-release fertilizer) + 9-9-9 (slow-release fertilizer containing +9% Fe). It was observed that 2 cm layer was formed under the turfgrass in rootzones with 80% sand + 20% sitl+clay mixture by slowing water drainage and negatively affecting infiltration, making it unsuitable for sports fields. Penetration, infiltration, and vane shear tests were performed, and it was determined that the best rootzone in terms of hydraulic and mechanical surface properties was the rootzone treatment formed with 10% silt-clay-organic mixture + 90% sand mixture.
Effect of Compost Addition on Porosity and Hydraulic Properties of Different Textured Soils
Authors: İşler Nurten , Kavdır Yasemin
Published: January 2025

This research aimed to investigate the temporal variations in soils of three distinct textures that were amended with composts derived from olive pomace (OPC) and vineyard pruning waste (VPC). The compost was prepared in reactors with automatic temperature and aeration control. This research encompasses three distinct soil textures, five varying compost applications, and ten separate sampling intervals following the compost application and replicated four times. After 210 days of incubation, 6% VPC application increased the field capacity value by 27.7% compared to the control, especially in sandy loam soil. At the same treatment and time, total porosity increased by 14.29% in clay soil. The highest increase in hydraulic conductivity was observed in clay and loam soil with 6% VPC and in sandy loam soil with 6% OPC. Compost applications increased field capacity the most in sandy loam soil. The impact of compost on field capacity and porosity of soils varied according to soil texture, compost material, application amount, and time elapsed after compost application. The high BJH surface area of clay soil decreased from 15.830 m2/g to 12.977 m2/g with the addition of OPC.
Assessment of Dyeing Properties of Hibiscus sabdariffa on Ostrich Leather
Authors: Mutlu Mehmet Mete , Kılıçaslan Deniz , Örk Efendioğlu Nilay
Published: January 2025

Natural dyestuffs derived from various plants can be used for dyeing processes in the textile and leather industries. Hibiscus sabdariffa, one of these natural dyestuffs, is known to be used in textiles and produces a red color with good dyeing properties. This study aimed to investigate the dyeing effect of Hibiscus sabdariffa flower on leather materials and to determine its dyeing properties. To achieve this, a dye was extracted from Hibiscus sabdariffa, and all wet processes of ostrich skins—an exotic type of leather—were carried out, incorporating the dye extract by adding a mordant during the dyeing process. Both chrome and vegetable tannins were utilized to examine the effects of the tanning process. Extraction yield, pH measurement, color measurement, to-and-fro rubbing fastness tests, and dyestuff exhaustion measurements were conducted. The results indicated that, particularly when the post-mordant process was applied, the extracted dyestuff yielded superior dyeing properties and color results compared to the non-mordant process. The extract from Hibiscus sabdariffa was determined to effectively dye the skins, producing beautiful and satisfying colors, especially when using iron sulfate mordant in vegetable-tanned leathers.
Ecological Footprint Awareness of Generation Z: A Case Study of Selçuk University Faculty of Science
Authors: Erbek Halil Osman , Akdoğan Yunus , Erbayram Tenzile
Published: January 2025

Achieving a sustainable ecosystem requires a harmonious relationship between biological capacity and ecological footprint. However, in today's rapidly industrializing world, population growth and lack of awareness about ecological footprints negatively impact biological capacity. Consequently, global ecological limits have been exceeded, straining the planet's carrying capacity. Human dominance over nature drives biodiversity loss and contributes to climate change, disrupting ecosystem balance, overconsuming natural resources, and causing environmental degradation. Industrialization and rapid urbanization have significantly increased resource consumption, leading to a sharp rise in greenhouse gas emissions—central to the carbon footprint and primary causes of climate change—that critically affect air quality, ecosystem stability, and biodiversity protection. Environmental factors directly influence human well-being, economic activities, and the health of all living organisms while reshaping the ecological order. This study aims to provide a fresh perspective on ecological awareness and inspire actionable steps in terms of building a sustainable ecosystem through a survey assessing the ecological literacy of Selcuk University Faculty of Science (SUFS) students. The survey reveals students' environmental awareness levels while examining its impact on their ecological behaviors. The general evaluation shows that SUFS students exhibit high awareness levels in the Ecological Footprint Awareness scale; however, scores related to recycling and transportation are lower than other dimensions. This indicates that targeted training for recycling and transportation is necessary to enhance overall awareness levels regarding ecological footprints. The findings will serve as a valuable resource for identifying strategies to improve environmental consciousness while emphasizing individuals' roles in fostering a sustainable future.
An Advanced Adaptive Mesh for Beam-Column Finite Elements on Transient Dynamic Analysis
Authors: Martinez Edgar David Mora , Khaji Naser
Published: January 2025

This research examines the influence of truncation error reduction on the nonlinear dynamic analysis of complex framed structures. A modified -adaptive method, incorporating inertial and damping forces in addition to the common restitutive forces, is introduced to refine the mesh and enhance accuracy. To address convergence challenges arising from increased complexity, Ritz modal shapes are utilized to reconstruct the mass matrix, excluding detrimental modes. The proposed formulation is validated through rigorous computational models and experimental data. Six building case studies, varying in complexity, were analyzed using the modified -adaptive method. The results revealed substantial variations in frequency and displacement responses, ranging from 6% to 50% and 0.8% to 63%, respectively. These disparities underscore the significant influence of nonlinear behavior on structures with high-order shape functions. The proposed formulation is theoretically more accurate. Therefore, the findings emphasize the necessity of employing mesh refinement techniques to obtain accurate nonlinear dynamic analysis results, particularly for complex structures with pronounced nonlinear characteristics. This study contains the background of a software called MainModelingStr. Doi: 10.28991/CEJ-2024-010-12-01 Full Text: PDF
Measuring Belt and Road Initiative Perceptions: A Comparative Analysis of Thai Border and Non-Border Regions
Authors: Champahom Thanapong , Chonsalasin Dissakoon , Theerathitichaipa Kestsirin , Jomnonkwao Sajjakaj , Watcharamaisakul Fareeda , Kasemsri Rattanaporn , Ratanavaraha Vatanavongs
Published: January 2025

This study aims to analyze and compare perceptions of the Belt and Road Initiative (BRI) between border and non-border regions in Thailand, addressing a gap in understanding how geographic proximity influences BRI project views. Using a sample of 3,200 respondents, this study employed confirmatory factor analysis and measurement invariance techniques to examine perceptions across eight key constructs related to BRI impacts. The findings reveal significant structural differences in BRI perceptions between border and non-border regions. Non-border regions generally showed more consistently positive perceptions across all constructs, while border regions demonstrated more varied and nuanced views. Notable differences were observed in perceptions of economic benefits, logistics improvements, and social impacts. This study contributes to the field by providing a comprehensive comparative analysis of BRI perceptions across different geographical contexts within a single country, employing advanced statistical methods to ensure valid comparisons. The results suggest the need for tailored approaches to BRI implementation and communication in different regions, implementing inclusive policy-making processes, and establishing robust monitoring and evaluation systems to address the varied perceptions and potential impacts of BRI projects in Thailand. Doi: 10.28991/CEJ-2024-010-12-010 Full Text: PDF
Analysis of Climate Change Scenarios Using the LARS-WG 8 Model Based on Precipitation and Temperature Trends
Authors: Hadi Saad H. , Alwan Husam H. , Al-Mohammed Fadhil M.
Published: January 2025

Global food production and water distribution are at risk due to increasing temperatures and changing precipitation trends. The main objective of the study was to analyze the climate trend and future projections in seven stations in southern Iraq. The period (1981–2020) was designated as a base period. The periods (2021-2040) and (2041-2060) were defined as the future two periods. The Mann-Kendall trend test was employed to assess trends utilizing XLSTAT. The study employed the most recent version of the LARS-WG 8 model to forecast climate change by using three GCMs (ACCES-ESM1-5, HadGEM3-GC31-LL, and MRI-ESM2-0). These simulations are based on two scenarios (SSP-245 and SSP-585). The statistical indicators provided support for the outcomes of model calibration and validation, demonstrating its competence and reliability. The results of this analysis indicate that there is a non-significant increase in precipitation and a considerable increase in both maximum and minimum temperatures during the period (1981-2060). The downscaled result reveals an increase in monsoon precipitation in the range of 2.233-2.831 mm under SSP-245 and SSP-585, respectively, compared with the base periods 1981-2020 during the Near Future and 1.988-2.543 mm during the mid-future. Also, annual maximum/minimum temperature increases in the range of (1.156-1.549 °C) and (1.486-1.770 °C) during the Near Future. (2.095-2.892 °C) and (1.486-1.770 °C) during the mid-future, respectively, for SSP-245 and SSP-585. These outcomes can enhance understanding to develop strategies for mitigating and adapting to these impacts. Doi: 10.28991/CEJ-2024-010-12-014 Full Text: PDF
Data Mining Approach-Based Damage Identification for Asphalt Pavement Under Natural Disaster Conditions
Authors: Rifai Andri I. , Isradi Muhammad , Prasetijo Joewono , Sari Yusra A. , Zolkepli Muhammad F.
Published: January 2025

Road performance can also decline due to natural disasters such as earthquakes, often in Indonesia. Given the high risk of natural disasters in Indonesia, it is important to consider their impact. Therefore, it is necessary to prepare for road rehabilitation and reconstruction quickly and accurately. This research aims to identify potential factors causing road damage by developing an approach to obtain predictions of road damage levels due to natural disasters by utilizing the availability of historical data, developing a decision support system to rehabilitate and reconstruct roads after disasters, and developing a road damage model due to earthquakes using data mining. The data was used to assess the condition of the national road pavement in Central Sulawesi and identified the disaster events as earthquakes that originated from the USGS. Data processing uses a data mining (DM) approach, which includes three models. The results found that the SVM modeling with the DM approach had a high accuracy rate of 0.91 ± 0.01, RMSE 0.70 ± 0.02, and MAD 0.42 ± 0.01. SVM achieves the highest accuracy after 20 runs. The best hyperparameters to accomplish a fit SVM model are ϵ = 0.07 ± 0.01 and γ = 0.05 ± 0.00. Meanwhile, for ANN, the hyperparameters are H = 3 ± 1. The earthquake’s magnitude (27%) and depth (24%) contribute to road damage. Doi: 10.28991/CEJ-2024-010-12-015 Full Text: PDF
Macroscopic Traffic Characterization Based on Distance Headway
Authors: Iftikhar Amir , Khan Zawar H. , Aaron Gulliver T. , Khattak Khurram S. , Ahmed Irfan
Published: January 2025

Accurate traffic characterization is essential for congestion mitigation. In this paper, a traffic model is proposed that incorporates distance headway in the well-known Lighthill, Whitham, and Richards (LWR) model. Velocity is influenced by the headway distance between vehicles. When this distance is small, the velocity is low, and when it is large, the velocity is high. The proposed and LWR models are implemented in MATLAB, and the performance is evaluated for different values of distance headway. The results show that traffic with the proposed model evolves with smaller changes that are more accurate and realistic than with the LWR model. Doi: 10.28991/CEJ-2024-010-12-016 Full Text: PDF