bluuebunny/crossref_metadata_2025 huggingface dataset:
Farklı Kişilik Tiplerinin Sürdürülebilir Tüketim Davranışı Açısından Değerlendirilmesi: A Tipi ve B Tipi Kişilik Üzerine Bir Araştırma (Evaluation of Different Personalities in Terms of Sustainable Consumption Behavior: A Research on Type A and Type B Personality)
Authors: Can Feyruz , Öztay Çağan Hilal
Published: March 2024

Amaç –Çevresel, sosyal ve ekonomik bozulmanın engellenebilmesi için sürdürülebilirlik üzerine düşünmek pek çok araştırmacının ortak amacı haline gelmiştir. Bireylerin tüketim eylemlerinde sürdürülebilir şekilde davranmasına neden olan öncüllerin belirlenmesi de pazarlama alanında çalışanlar için önemli bir sorun haline gelmiştir. Bu çalışma ile tüketicilerin sürdürülebilir davranışı sergilemelerinde kişilik tiplerinin önemli bir etkisinin olup olmadığı araştırılmıştır.Yöntem –Niceliksel yöntem benimsenerek yürütülen çalışmayla katılımcıların A tipi ve B tipi kişilik tiplerinden hangi kategoriye girdiği tespit edilmiştir. Bu amaçla kişilik envanteri ve sürdürülebilir tüketim davranışı ölçekleri kullanılarak anket tekniği ile veri toplanmıştır. Sonrasında farklı kişilik tipleri sergileyen tüketicilerin sürdürülebilir tüketim davranışı boyutları açısından farklılaşma durumlarının değerlendirilebilmesi için SPSS program ile hipotez testleri gerçekleştirilmiştir. Bulgular –Elde edilen bulgulara göre enerji tasarrufu, atık azaltma ve yakıt tasarrufu boyutlarının A ve B kişilik tiplerini sergileyen bireylerde farklı olduğu, duyarlı gıda tercihi davranışı açısından ise farklı kişilik tipine sahip olmanın anlamlı bir farklılık yaratmadığı sonuçları elde edilmiştir. Çalışma sonuçlarına göre A tipi bireyler çok yüksek düzeyde enerji tasarrufu, yüksek düzeyde ise atık azaltma, duyarlı gıda tercihi ve yakıt tasarrufu davranışları sergilerken, B tipi bireyler yüksek düzeyde enerji tasarrufu ve duyarlı gıda tercihi, orta düzeyde ise atık azaltma ve yakıt tasarrufu davranışı sergilemektedir Tartışma –Çalışma ile farklı şekillerde bireylerin davranışlarını, duygularını ve düşüncelerini etkileyen kişiliğin, gündelik yaşam pratiklerinin önemli bir parçası olan tüketim eylemlerinde sürdürülebilirliğe dair etkisi ortaya konularak literatüre katkı sağlanmıştır. Bireysel farklılıkların öneminin vurgulandığı bu çalışmada pazar bölümlendirme ve pazarlama iletişimi konularında fayda sağlayacağına dair öneriler sunulmuştur.
Deneyimsel Pazarlama: Otel İşletmeleri Üzerine Bir Araştırma (Experiential Marketing: A Research on Hotel Businesses)
Authors: Toprak Mihrap , Güzel Şahin Gonca
Published: March 2024

Amaç -Rekabetin hızla yaşandığı günümüzde müşterilerin istek ve beklentilerinin değişmesi işletmeleri de farklı hizmet sunmaya yöneltmektedir. Böyle bir durumda işletmeler de rakiplerine karşı öne çıkabilmek için pazarlama faaliyetlerinde farklılaşma yolunu tercih etmişlerdir. Bu pazarlama faaliyetlerinden biri de deneyimsel pazarlamadır. Deneyimsel pazarlamanın önemini anlayan turizm işletmeleri de eşsiz benzersiz deneyim sunmaya yönelik pazarlama faaliyetleri için çabalamaktadır. Bu nedenle Ankara’da bulunan 4ve 5 yıldızlı otel işlemelerinde müşterilere sunulan deneyim boyutlarını belirlemek, deneyim boyutlarının müşteri memnuniyeti ve müşteri sadakati üzerindeki etkisini araştırmak amaçlanmıştır.Yöntem –Bu araştırmanın evrenini Ankara’da yer alan 4 ve 5 yıldızlı otel işletmelerinde konaklayan yerli ve yabancı müşteriler oluşturmaktadır. Araştırmada 56 otel işletmesinin misafirlerine çıkış esnasında anket yapılmıştır. Araştırmada elde edilen verileri değerlendirmek için BM SPSS 28 ve R programı (R Core Team, 2023) kullanılmıştır. Araştırmanın analizinde Mann-Whitney U, Shapiro-Wilk, Kruskal-Wallis H, Dunn testleri ve yol analizi tekniklerinden faydalanılmıştır.Bulgular –Araştırma sonucunda, müşteri deneyim boyutlarından estetik, eğlence, ergonomiklik, sosyal etkileşim, sosyal tatmin ve eğitim boyutlarının müşteri memnuniyeti üzerinde istatistiksel açıdan anlamlı bir etkiye sahip olduğu belirlenmiştir. Yine müşteri deneyimi boyutlarından estetik, ergonomiklik, alturistik, sosyal etkileşim, sosyal tatmin ve eğitim boyutlarının müşteri sadakati üzerinde istatistiksel açıdan anlamlı bir etkiye sahip olduğu ortaya çıkarılmıştır. Tartışma –İşletmeler müşteri sadakati kazanmak için müşteri beklentilerine odaklanmalı ve müşteri memnuniyetini sağlamayı hedeflemelidir. İstatistiksel açıdan anlamlı bulunan estetik, eğlence, ergonomiklik, sosyal etki, sosyal tatmin ve eğitim boyutlarının yol katsayıları pozitif olduğu için; bireylerin estetik, eğlence, ergonomiklik, sosyal etki, sosyal tatmin ve eğitim düzeyleri puanları arttıkça müşteri memnuniyet düzeyinin de artacağı öngörülmektedir.
Uçuş Öncesi ve Sonrası Hizmetlere İlişkin Memnuniyetin Uçuş Esnasındaki Memnuniyet Üzerindeki Etkisi: Yolcu Güveninin Aracılık Rolü (The Impact of Satisfaction with Pre-flight and Post-flight Services on In-flight Satisfaction: The Mediating Role of Passenger Trust)
Authors: Okan Serdar
Published: March 2024

Amaç-Havayolu işletmesi için uçuşun her aşamasındaki yolcu memnuniyetinin etkisini incelemek ve bu etkinin arkasındaki yolcu güveninin aracılık rolünü belirlemektir.Yöntem -Çalışma verileri, 2022 yılı yaz aylarında Antalya Havalimanı iç hatlar terminaline gelen 430 adet yolcu tarafından doldurulan anketlerden elde edilmiş ve bu veriler IBM SPSS 21 ve Smart PLS 4 programları kullanılarak analiz edilmiştir. Değişkenler arasındaki ilişki ve aracı rolün belirlenmesi için Yapısal Eşitlik Modellemesi kullanılmıştır. Ayrıca, çalışma verilerine tanımlayıcı istatistik, Açıklayıcı Faktör Analizi (AFA), Doğrulayıcı Faktör Analizi (DFA), eş doğrusallık analizi ve son olarak yol analizi uygulanmıştır.Bulgular-Analiz sonuçlarına göre, uçuş öncesi ve sonrası yolcuların algıladıkları memnuniyet ile havayolu işletmesine olan güvenleri arasında istatistiksel olarak anlamlı ve pozitif yönlü bir ilişki bulunmaktadır. Ayrıca, yolcuların havayolu işletmesine olan güveni ile uçuş sırasında algılanan memnuniyetleri arasında da istatistiksel olarak anlamlı ve pozitif yönlü bir ilişki tespit edilmiştir. Ancak, uçuş öncesi ve sonrası yolcuların algıladıkları memnuniyet ile uçuş sırasında yolcuların algıladıkları memnuniyet arasında bir ilişki bulunamamıştır. Ayrıca, uçuş öncesi ve sonrası yolcuların algıladıkları memnuniyetin uçuş sırasında yolcuların algıladıkları memnuniyete etkisinde güvenin aracı olarak bir etkisinin olmadığı tespit edilmiştir.Tartışma-Hava ulaşımında, yolcuların havayolu işletmesine duyduğu güven büyük bir öneme sahiptir. Hava ulaşımının karmaşık bir süreç olduğu düşünüldüğünde, havayolu işletmelerinin sadece yolcu memnuniyeti değil, aynı zamanda güven unsurunu da dikkate alması, yolcunun havayolu işletmesine karşı bağlılığını güçlendirebilir
CDS Primi Tahmini: Türkiye Üzerine Bir Uygulama (CDS Spreads Forecast: An Application on Türkiye)
Authors: Demirel Ali Can , Hazar Adalet , Babuşçu Şenol
Published: March 2024

Amaç –Bu araştırma, günlük CDS priminin tahmin edilmesi konusunda bir model geliştirmeyi hedeflemiştir. Bu çerçevede çalışmanın amacı yatırım kararları alırken bir gösterge olan CDS priminin tahminine katkı sağlamaktır. Özellikle finansal göstergelerdeki volatilitenin yüksek olduğu Türkiye’de, ekonomik istikrarın belirlenmesinde önemli bir gösterge olan CDS primi, finansal piyasalarda risk algısını yansıtan ve yatırım kararları konusunda gösterge olan bir metrik olarak öne çıkmaktadır.Yöntem –Çalışmada, makine öğrenmesi disiplininin bir yöntemi olan yapay sinir ağları kullanılmıştır. Yapay sinir ağları ile 3 tahmin modeli oluşturulmuştur.Bulgular –Çalışma sonucunda tüm modeller düşük ortalama mutlak hata (MAE) oranına sahip başarılı tahmin performansı gösterse de Model 2 en iyi performansı göstermiştir. Ayrıca karmaşıklık matrisi ile makine ezberleme problemi test edilmiştir.Tartışma –Volatilitenin yüksek olduğu ülkelerde CDS primi tahmininde alternatif bir yöntem kullanılmıştır. Geleneksel finansal modeller genellikle bu tür piyasalarda istikrarlı tahminler sağlamakta zorlanırken, önerilen yöntem, belirsizlik ve dalgalanmanın daha doğru bir şekilde dikkate alınmasını sağlamaktadır. Bu alternatif yöntemin temelinde, volatiliteyi ve risk hareketlerini öğrenebilen algoritmanın çalışmasıdır.
Abdominal involvement as a primary manifestation of systemic or isolated gastrointestinal vasculitis
Authors: Gheriani Gatr-Alnada , Lenert Petar S.
Published: March 2024

Systemic vasculitides can cause a wide variety of gastrointestinal manifestations (GI) ranging from mild and frequently nonspecific abdominal pains to potentially life-threatening bowel perforations. Vascular involvement in systemic vasculitides can affect any GI blood vessel, most commonly mesenteric, hepatic, or splenic arteries. Inflammatory changes affecting different layers of arterial vessel walls can lead to aneurysmatic dilatation or blood vessel occlusion with subsequent organ ischemia leading to mucosal ulcerations, GI bleeding, perforations, or bowel obstruction. While the presence of extraintestinal manifestations may aid in diagnosis, delays in making appropriate diagnoses and rapid initiation of glucocorticoid and immunosuppressive treatment can have detrimental consequences. Awareness of isolated gastrointestinal vasculitis is of particular importance as it frequently remains undiagnosed until end-stage organ damage becomes apparent. Vasculitis mimics such as vascular Ehlers-Danlos syndrome or fibromuscular dysplasia add another lay of complexity in approaching patients with suspected GI vasculitis and should always be carefully considered.
Concomitant determination of PAH, PCBs, and phthalates in indoor air and dust from residential houses in the Strasbourg region of France
Authors: Al-Alam Jοsephine , Sοnnette Alexandre , Delhοmme Olivier , Alleman Laurent Y. , Cοddeville Patrice , Millet Maurice
Published: March 2024

Global attention is drawn to the significant issue of indoor pollution, given its direct negative impact on human health and wellness. Typically, individuals can nowadays spend 80% or more of their time in enclosed built locations where they can be prone to a multitude of harmful toxic chemicals distributed in particulate and gas phases. Therefore, a systematic efficient monitoring of such chemicals in indoor environments is urgently required to devise and implement various measures that allow their control. The objective of this study is to evaluate the concomitance occurrence of phthalates, polycyclic aromatic hydrocarbons (PAHs), and polychlorinated biphenyls (PCBs) within the indoor settings of residential homes in Strasbourg. It focused on both the indoor air and dust samples collected in nine residential homes in Strasbourg for a one-year sampling period, February 2016 - February 2017. For this, Radiello®, SiC© foams, and Tenax-TA® were successfully introduced and used as reliable passive samplers for the aforementioned matrices. Extractions were carried out using pressurized solvent extraction (PSE) followed by ATD-GC/MSMS analysis. The findings of the presented study revealed that 12 PAHs, 18 PCBs, and 7 phthalates were regularly perceived in the indoor environments of the houses under assessment. In gaseous samples, the average concentrations of the detected pollutant were approximately 3,919, 4.3, and 601.6 ng/sampler for PAHs, PCBs, and phthalates, respectively. As for dust samples, the average concentrations of the detected pollutant were approximately 3,438, 6.2, and 1,816.2 ng/g, respectively. The obtained results showed that PCBs exhibited the lowest concentration in both matrices. However, air samples were mostly contaminated by PAHs, while dust samples showed higher levels of phthalates. These results are correlated to the physico-chemical properties of these compounds and to their origin and source of emission. The findings of this study stress the importance of indoor pollution assessment so that the risks associated with it could be controlled.
Soft alchemy: a comprehensive guide to chemical reactions for pneumatic soft actuation
Authors: Villeda-Hernandez Marcos , Baker Benjamin C. , Romero Christian , Rossiter Jonathan M. , Faul Charl FJ.
Published: March 2024

Soft robotics has emerged as a transformative field, leveraging bio-inspired novel actuation mechanisms to enable more adaptable, compliant, and sophisticated robotic systems. However, the portability of soft pneumatic actuators is typically constrained by the tethering to bulky power sources. This review offers a thorough analysis of autonomous power alternatives facilitated by chemical reactions for gas generation and absorption, a concept analogous to biological energy conversion processes. These bio-inspired strategies propel soft pneumatic actuators towards new horizons of autonomy and portability, essential for real-world applications. This comprehensive review explores the critical intersection of gas evolution reactions (GERs) and gas consumption reactions (GCRs) as a power source for pneumatic actuation in soft robotics. We here emphasize the importance and impact of bio-inspired design, control, efficiency, safety, and sustainability within soft robotics to not only mimic biological motions but to enhance them. This review explores the fundamentals of both pneumatic and chemically powered actuation, highlighting the need for careful consideration of reaction kinetics. Additionally, this work highlights key aspects of smart materials that draw from biological structures and response mechanisms, along with state-of-the-art techniques for precise pressure modulation. Finally, we chart prospective development pathways and provide a future outlook for bio-inspired soft robotics, emphasizing the transformative impact of integrating chemical actuation methods. This exploration underlines the quest for further autonomy in soft robotic systems and points towards the future opportunities in this exciting and fast-developing field.
Assessment of HVAC Performance and Savings in Office Buildings Using Data-Driven Method
Authors: Borodinecs Anatolijs , Palcikovskis Arturs , Krumins Andris , Zajecs Deniss , Lebedeva Kristina
Published: March 2024

Enhancing energy efficiency within the building sector is imperative to curbing energy losses, given that this sector alone contributes to over 34% of global energy consumption. Employing a building management system, along with its regular updates, presents a strategic avenue to decrease energy usage, enhance building energy efficiency, and more. Tailored control strategies, aligned with the unique characteristics and usage patterns of each building, are essential for achieving energy savings. This article presents an evaluation of HVAC system efficiency in office buildings, utilizing a data-driven approach coupled with simulations conducted in IDA ICE software. The research explores the control strategy of an office building equipped with a constant air volume HVAC system, featuring a regularly controlled air handling unit. The objective is to boost energy efficiency while striking a balance between occupant comfort and energy consumption. Findings indicate that by analyzing measured data and adjusting configurable parameters, building energy consumption can be significantly reduced. Close monitoring of indoor parameters by building operators and corresponding adjustments to the HVAC system can yield energy savings of up to 16%. Leveraging these insights, the paper suggests integrating data-driven and dynamic simulation methods into building management system models to optimize HVAC systems, enhance energy efficiency, and advance ambitious carbon neutrality objectives.
A Multifaced Approach on Psoriasis Pathogenesis
Authors: Dascǎlu Rucsandra Cristina , Bǎrbulescu Andreea Lili , Stoica Loredana Elena , Dinescu Ştefan Cristian , Bițǎ Cristina Elena , Popoviciu Horațiu Valeriu , Ionescu Rǎzvan Adrian , Vreju Florentin Ananu
Published: March 2024

Psoriasis is a chronic recurrent inflammatory autoimmune pathology, with a major genetic component and several interferences of immunological cells and their cytokines. The complex orchestration of psoriasis pathogenesis is related to the synergic effect of immune cells, polygenic alterations, the presence of autoantigens and several external factors. The major act of IL-23/IL-17 axis, strongly influencing the inflammatory pattern established during the disease activity, is visible as a continuous perpetuation of the pro-inflammatory response and keratinocyte activation and proliferation leading to the development of psoriatic lesions. Genome wide association studies (GWAS) along offered a better view of psoriasis pathogenic pathways, with approximately one third of psoriasis genetic impact on psoriasis development is associated to MHC region, with genetic loci located on chromosome 6. The most eloquent genetic factor of psoriasis, PSORS1, was identified in the MHC I site. Between the several factors involved in its complex etiology, dysbiosis, due to genetic or external stimulus, exhibiting less variety and the involvement of pathogenic bacteria, cand induce a burst of proinflammatory consequences, both cutaneous and gut microbiome being involved in psoriasis pathogenic process. A complex understanding of the major pathways that interplay in order to initiate and perpetuate psoriatic diseases and its associated comorbidities can help the current clinical practice by properly evaluating completely and individualized each patient and establish the proper therapeutic management.
Effects of Oxygen Content on Microstructure and Creep Property of Powder Metallurgy Superalloy
Authors: Liu Yufeng , Zhang Shaorong , Zhang Lichong , Zheng Liang , Li Zhou , Zhang Lin , Zhang Guoqing
Published: March 2024

Effects of oxygen content on microstructure and creep property of FGH96 superalloy were investigated. When oxygen content increased from 135ppm to 341ppm, prior particle boundary (PPB) rose from degree 2 to degree 3, and the size of γ′ phase on PPB enlarged from 1.07μm to 1.27μm, and MC carbide size grew from 77.4nm to 104.0nm. Meanwhile, the steady creep rate accelerated form 4.34×10-3 h-1 to 1.87×10-2 h-1, and the creep rupture life shortened from 176h to 94h, and the creep rupture mode transferred from intergranular and transgranular mixed fracture to along PPB fracture. During creep, the micro-twins formation and gliding will be restrained by ∑3 boundaries. FGH96 superalloy with higher oxygen content contains less ∑3 boundaries and its micro-twins cross slipped instead of single direction slip in lower oxygen content superalloy. Consequently, specimen with higher oxygen content creeped faster and raptured earlier.
Review of Fourth-Order Maximum Entropy Based Predictive Modelling and Illustrative Application to a Nuclear Reactor Benchmark. I. Typical High-Order Sensitivity and Uncertainty Analysis
Authors: Cacuci Dan Gabriel , Fang Ruixian
Published: March 2024

This work (in two parts) will review the recently developed predictive modeling methodology called “4th-BERRU-PM” and its applicability to energy systems as exemplified by an illustrative application to the Polyethylene-Reflected Plutonium (acronym: PERP) OECD/NEA reactor physics benchmark. The acronym 4th-BERRU-PM designates the “Fourth-Order Best-Estimate Results with Reduced Uncertainties Predictive Modeling” methodology, which yields best-estimate results with reduced uncertainties for the first fourth-order moments (mean values, covariance, skewness, and kurtosis) of the optimally predicted posterior distribution of model results and calibrated model parameters. The 4th-BERRU-PM uses the Maximum Entropy (MaxEnt) principle to incorporate fourth-order experimental and computational information, including fourth (and higher) order sensitivities of computed model responses to model parameters, thus incorporating, as particular cases, the results previously predicted by the second-order predictive modeling methodology 2nd-BERRU-PM, and vastly generalizing the results produced by extant data assimilation and data adjustment procedures. The 4th-BERRU-PM methodology encompasses the scopes of high-order sensitivity analysis (SA), uncertainty quantification (UQ), data assimilation (DA) and model calibration (MC). The application of the 4th-BERRU-PM methodology to energy systems is illustrated by means of the above-mentioned OECD/NEA reactor physics benchmark, which is modeled using the neutron transport Boltzmann equation involving 21976 imprecisely known parameters, the solution of which is representative of “large-scale computations.” The model result (“response”) of interest is the leakage of neutrons through the outer surface of this spherical benchmark, which can be computed numerically and measured experimentally. Part 1 of this work illustrates the impact of high-order sensitivities, in conjunction with parameter standard deviations of various magnitudes, on the determination of the expected value and variance of the computed response in terms of the first four moments of the distribution of the uncertain model parameters. Part 2 of this work will illustrate the capabilities of the 4th-BERRU-PM methodology for combining computational and experimental information, up to and including forth-order sensitivities and distributional moments, for producing best-estimate values for the predicted responses and model parameters while reducing their accompanying uncertainties.
Scratch Resistance of a Plasma-Assisted Duplex Treated 17–4 Ph Stainless Steel Additively Manufactured by Laser Powder Bed Fusion
Authors: Gómez-Ortega Arturo , Pinilla-Bedoya Julián Andrés , Ortega-Portilla Carolina , Félix-Martínez Christian , Mondragón-Rodríguez Guillermo César , Espinosa Arbeláez Diego Germán , Pérez-Barrera James , González-Carmona Juan Manuel , Franco Urquiza Edgar Adrián
Published: March 2024

Additive manufacturing (AM) or 3D printing of metals is gaining popularity due to its flexibility in fabricating parts with highly complex designs, as well as simplifying manufacturing steps and optimizing process times. In this investigation, 17-4 PH stainless steel was additively manufactured using Laser-Powder Bed Fusion (L-PBF), followed by functionalization through a DUPLEX treatment. This treatment involved a plasma-assisted nitriding process, followed by deposition of an arc-PVD c-Al0.7Cr0.3N hard coating. The microstructural modifications resulting from plasma nitriding (such as the formation of Fe2,3N and Fe4N, and the αN or expanded martensite phases), and the surface improvements with the c-Al0.7Cr0.3N coating on the 3D-printed 17-4 PH steel, are evaluated in comparison to conventionally manufactured 17-4 PH steel. These microstructural characteristics are correlated with the mechanical response of the treated surfaces. As a result of the plasma nitriding process, the hardness of the 3D-printed 17-4 PH SS increased by approximately 260%. The wear, measured through dynamic and static scratch-testing, was reduced by approximately 31%. This improvement was attributed to the modification of adhesive failure mechanisms, leading to a reduction in wear volume, improved coating adhesion, and enhanced scratch resistance.
Mid-Infrared 2.79 μm Band Er, Cr: YSGG Laser Transmission Anti-Bending Low-Loss Anti-Resonant Hollow-Core Fiber
Authors: Huang Lei , Wang Peng , Wang Ze Yin , Cheng Qing Ting , Wang Li , Jiang Haihe
Published: March 2024

A large core size and bending resistance are very important properties of mid-infrared energy transfer fibers, but large core sizes usually lead to a deterioration of bending properties. A negative-curvature nested node-free anti-resonant hollow-core fiber (AR-HCF) based on quartz is proposed. It was made by adding a nested layer to a previous AR-HCF design to provide an additional anti-resonance region while keeping the gap between adjacent tubes strictly correlated to the core diameter to produce a node-free structure. These features improve the fiber’s bending resistance while achieving a larger core diameter. The simulation results show that the radial air-glass anti-resonant layer is increased by the introduction of the nested anti-resonant tube, and the weak interference overlap between the fiber core and the cladding mode is reduced, so the fiber core’s limiting loss and the sensitivity to bending are effectively reduced. When the capillary wall thickness t of the fiber is 0.71 μm, the core diameter D is 70 μm, the ratio of the inner diameter of the cladding capillary to the core diameter d/D is 0.62, and the diameter of the nested tube is d0=29 μm, the fiber has a lower limiting loss at the wavelength of 2.79 μm, and the limiting loss is 3.28×10-4 dB/m. At the same time, the optimized structure also has good bending resistance. When the bending radius is 30 mm, the bending loss is only 4.72×10-2 dB/m. To our knowledge, this is the first research to achieve an anti-bending low-loss micro-structure hollow fiber with a bending radius of less than 30 mm in the 2.79 μm band. An anti-bending low-loss anti-resonant hollow-core fiber with this structure constitutes a reliable choice for the light guiding system of a 2.79 μm band erbium laser therapy instrument.
Heteropolyacids@Silica Heterogeneous Catalysts to Produce Solketal from Glycerol Acetalization
Authors: Dias Catarina N. , Santos-Vieira Isabel C.M.S. , Gomes Carlos R. , Mirante Fátima , Balula Salete S.
Published: March 2024

The composites of heteropolyacids (H3PW12, H3PMo12) incorporated into amine-functionalized silica materials, were used for the first time as heterogeneous catalysts in the valorisation of glycerol (a large waste from biodiesel industry) by acetalization reaction with acetone. The polyoxotungstate catalyst H3PW12@AptesSBA-15 presented higher catalytic efficiency than the phosphomolybdate, with 97% of conversion with 97% of solketal selectivity, after 60 min at 25 °C, or 91% of glycerol conversion and the same selectivity, after 5 min, performing the reaction at 60 ºC. A relation of catalytic performance and acidity of the catalyst is here presented. Furthermore, the stability of the solid catalyst was investigated and discussed.
Optimizing Classroom Resource Allocation Using a Modified Salp Swarm Algorithm
Authors: Fujii Aya , Tanaka Hiroshi , Suzuki Yoko , Sato Kenji , Yamamoto Ayumi
Published: March 2024

Classroom resource allocation is a challenging problem in educational institutions. The use of cloud computing can aid in the optimization of this process by allowing resource providers to allocate resources to users in a timely and efficient manner. In this paper, we propose a modified Salp Swarm Algorithm (SSA) to optimize the allocation of classroom resources. The proposed approach involves generating a population of salps representing potential solutions to the resource allocation problem and updating the positions of the salps iteratively based on a fitness function and mathematical equations. We conducted simulations of the proposed algorithm on various numbers of tasks and sources to evaluate its performance. The results indicate that the modified SSA algorithm can efficiently allocate classroom resources, achieving lower completion time of tasks (makespan) with lower costs. This paper contributes to the literature by introducing an effective approach to solve the classroom resource allocation problem.
Seasonal Effects of Wildfires on the Physical and Chemical Properties of Soil in Andean Grassland Ecosystems in Cusco, Peru: Pending Challenges
Authors: Roman Melida , Zubieta Ricardo , Ccanchi Yerson , Martinez Alejandra , Paucar Ysai , Alvarez Sigrid , Loayza-Céspedes Julio C. , Ayala Filomeno
Published: March 2024

The soils represent a valuable renewable resource on human timescales and interact with distinctive grassland ecosystems characterized by their elevated biodiversity and essential provision of ecosystem services, such as water supply and carbon sequestration. However, knowledge concerning the effects of wildfires on soil properties and nutrient availability remains limited in the Andes. Andean grasslands currently stand as ecosystems most affected by wildfires in the Peruvian Andes. Our objective is to analyze the effect of fire activity on soil physicochemical properties and analyze its social context in Cusco, situated in the southern Andes of Peru. Five soil samples were collected during both the dry and rainy seasons to characterize changes in soil properties. Additionally, the vegetation restored after the wildfire was analyzed. Changes in soil properties subsequent to the fire indicate slight increases in pH, electrical conductivity, organic matter, nitrogen, phosphorus, and potassium during the onset of the rainy season; thereafter, a gradual reduction in these values was observed. This reduction can be attributed to the seasonal rainfall and runoff regime contributing to the leaching process. Our findings suggest that the complete regeneration of vegetation following a wildfire may require approximately four to five years. This assertion is supported by the perceptions of the affected population, as revealed through interviews conducted within two local farming communities. These results hold significance for decision-makers in formulating policies and regulations regarding grasslands and their seasonal restoration.
Analyzing Green/Open Space Accessibility by Using GIS in Kyrenia Region
Authors: Kara Can , Akçit Nuhcan , Fuller Özge Özden
Published: March 2024

Green open spaces (GOS) are well known to be vital to enhancing the standard of living conditions in urban environments. The World Health Organization (WHO) says it is important to have at least nine square meters per citizen. The European Environment Agency (EEA) stipulates that 5000 square meters of green space will be reachable within 300 meters to residents. GOS pattern in Kyrenia Region is not adequate or successful in that regard. The process of urban planning has been neglected in the Kyrenia region and these areas have lost their significance and value. This research evaluates the level of accessibility of green spaces in Kyrenia Region. Three urban areas, Kyrenia, Karavas and Agios Epiktitos have been analyzed within this framework. In order to do that, GOS areas and their pattern are researched by deploying geographical information analysis. Accessibility to these areas is measured by using Euclidean and network distance analysis based on 300, 800 and 5000 meters. Mainly, Euclidean distance and network distance methods are measured from building units and results showing accessibility values are constructed. According to the results, network accessibility is very low within the study region. Additionally, Kyrenia, Karavas and Agios Epiktitos have shortage in GOS per capita. To offer effective strategies for urban planning, the factors influencing the accessibility and also the usage of GOS are addressed.
Intersecting Realms: Sexuality and Body Dysmorphia - Implications for Mental Health
Authors: Brass Justin
Published: March 2024

This review paper investigates the intricate relationship between sexuality and body dysmorphia, emphasizing its profound impact on mental health. Through a critical examination of existing literature, this study illuminates the complex psychological, societal, and cultural dynamics at play within this intersection. Special attention is given to the influence of media representations and societal beauty standards in shaping individual perceptions and experiences. Furthermore, the paper discusses various therapeutic interventions designed to address this interplay, underscoring the necessity for mental health practices that are both sensitive and adaptable to the nuances of these issues. Ultimately, this work enriches the discourse on body image and sexual health, offering critical insights for clinical interventions and highlighting areas for further research.
Displacement Mapping as a Highly Flexible Surface Texturing Tool for Additively Photopolymerized Components
Authors: Bail Robert , Lee Dong Hyun
Published: March 2024

Displacement mapping is a computer graphics technique that enables the design of components with regularly or randomly textured surfaces that can be quickly materialized on a three-dimensional (3D) printer when needed. This approach is in principle more flexible, faster and more economical compared to conventional texturing methods, but the accuracy of the texture depends heavily on the parameters used. The purpose of this study is to demonstrate how to produce a surface-textured part using polygonal (mesh) modeling software and a photopolymerizable resin, and to develop a universal methodology to predict the dimensional accuracy of the model file log combined with a resin 3D printer. The printed components were characterized on a scanning confocal microscope. In the setup used in this study, the mesh size had to be reduced to 10% of the smallest feature size and the textured layer had to be heavily (x4) overexposed to achieve the desired accuracy. As a practical application, two functional stamps with a regular (honeycomb) and a random texture, respectively, were successfully manufactured. The insights gained will be of great benefit in quickly and cost-effectively producing components with innovative patterns and textures for a variety of hobby, industrial and biomedical applications.
Revolutionizing LNG Plant Construction: A Comprehensive Comparative Analysis and Evaluation of Modular Design Development versus Stick-Built Approach for Enhanced Efficiency and Cost-Effectiveness
Authors: JOHNSON NNADIKWE , SUNDAY UME CYRIL
Published: March 2024

Revolutionizing Lng Plant Construction and its Comprehensive Comparative Analysis And Evaluation Of Modular Design Development Versus Stick-Built Approach For Enhanced Efficiency And Cost-Effectiveness,.Although the utilization of modularization concepts in the LNG industry remains limited, this study focuses on exploring their potential. It is worth noting that modular units typically incur higher costs compared to field erected units due to the additional requirements of structural steel and robustness for transportation purposes.Nevertheless, the increased cost of modularization can often be balanced by conducting the work at the fabrication site instead of on-field construction. This approach reduces the overall project cost by minimizing field construction expenses and shortening the construction schedule. The objective of this paper is to assess and compare LNG modularization options for a newly established LNG facility in comparison to a conventional stick-built plant used as the base case.:The paper delves into various topics related to LNG plant construction, such as the development of modular units, a comprehensive comparison of different options, evaluation of construction schedules and manpower requirements, logistics considerations, and a recommended approach for design and construction. The cost estimates and engineering, procurement, and construction (EPC) schedules are meticulously compared for each option. Additionally, an inshore/near shore gravity base structure (GBS) option is included for further comparison. It is crucial to emphasize that establishing general costs is not possible as each project is distinct and requires individual study and analysis.:Each project has unique characteristics, resulting in varying shapes of cost curves and break-even points. The outcomes of the feasibility evaluation play a crucial role in determining the extent to which the modular approach to construction is advantageous for the specific project at hand. The evaluation takes into consideration multiple factors to determine the potential benefits of adopting a modular construction approach, allowing decision-makers to make informed choices regarding the project's construction methodology
Experiments Conducted to Date to Verify the Relativistic Gravitational Time Dilation Have Limited Scientific Significance
Authors: Ziefle Reiner Georg
Published: March 2024

Abstract: Experiments conducted to date to verify the relativistic gravitational time dilation have limited scientific significance because the basic postulate of Einstein’s relativistic GR that the same time (t0) is measured in all non-inertial frames of reference, because all non-inertial frames of reference must be equal, has not yet been verified by time measurements. According to Einstein's relativistic GR, a correlation between time and different gravitational potentials must be the result of a relative relation between non-inertial frames of reference and must not the result of any other physical influence. An experiment that can differentiate between a causal correlation (relative relation) and an apparent correlation (relativistic relation) between time and gravitational potentials is still outstanding. The expressions "relative" and "relativistic" are often used as synonyms. However, Einstein's GR is a relativistic theory. In the case of general relativity, relativistic means that time depends only on the relative relation between non-inertial frames of reference and not on other physical factors. The author proposes an easy-to-realize experiment that is able to distinguish between a causal correlation (relative relation) and an apparent correlation (relativistic relation) between time and gravitational potentials, which can confirm or falsify Einstein's relativistic GR.
.
Network Medicine-Based Approach Reveals Cyclosporine and Selinexor Drug Combination as an Effective Therapy against SARS-COV-2
Authors: Azad AKM
Published: March 2024

The proliferation of SARS-COV-2 through enhanced viral replication and its subsequent triggering of cytokine storm, are some of the hallmark phenotypes in severe COVID-19 patient cases. Cyclosporine, an immunosuppressant drug and Selinexor, an inhibitor of nuclear transporter protein, both have been successfully demonstrated to be effective against SARS-COV-2 infection by targeting those functions individually. However, the highly multifactorial pathology of SARS-COV-2 infection hinders any mono-therapeutic strategy to become an optimal option. In this study, we assess the potential efficacy of the Cyclosporine-Selinexor combination on an integrated interactome by adopting a network-medicine-based repositioning technique, where disease proximity, functional proximity and their topological separation are evaluated, followed by a robust statistical significance test. Results have shown that both drug target modules are highly proximal to the SARS-COV-2 disease modules in terms of network topology and functional associations, in a statistically significant manner, individually. Functional enrichment of both drug modules and SARS-COV-2 infected modules has shown that two drugs target the functions related to viral replication and cytokine storm during infection. Moreover, a high degree of network separation been those two drug target modules has been observed, revealing ``complementary exposure`` patterns, rendering this drug combination as an effective one against SARS-COV-2 infection. We hope that our results will encourage researchers to further investigate the potency of Cyclosporine and Selinexor combination in vivo or in vitro, and ultimately lead that up to clinical trials to treat SARS-COV-2 patients.
A Comprehensive Review of Sustainable Assessment and Innovation in Jet Grouting Technologies
Authors: Inazumi Shinya , Shakya Sudip
Published: March 2024

This paper undertakes a comprehensive review to underscore the central role of sustainability in the evaluation and innovation of jet grouting technologies. It meticulously traces the evolution of evaluation methodologies, emphasizing the imperative of sustainable practices throughout history. Traditional evaluation paradigms are examined alongside contemporary trends, with a particular focus on sustainability metrics and visualization techniques. Through an examination of innovative jet grouting technologies, this paper illustrates how sustainability principles have driven advancements aimed at improving the efficiency and environmental impact of jet grouting methods. Central to this review is an assessment of sustainability across multiple dimensions, including method applicability, installation and operational compatibility, and the performance of the resulting jet grouted piles. By emphasizing sustainability considerations, the paper highlights the intrinsic link between environmental integrity and technological innovation in the field of jet grouting. In addition, it discusses analytical evaluation methods designed to proactively address sustainability concerns prior to construction, thereby promoting a more environmentally responsible approach. Finally, this paper presents a pioneering evaluation framework that integrates real-time monitoring and visualization tools, allowing stakeholders to track sustainability milestones throughout the construction process. By emphasizing sustainability as a guiding principle, this review advocates for a paradigm shift toward more ecologically sound and resilient jet grouting practices.
Application of ZA Fertilizer on Growth and Production of Red Ginger (Zingiber officinale var. Rubrum)
Authors: Putro Albriansyah Zinka Ancoro , Supriyono Supriyono , Sulandjari Sulandjari , Purnomo Djoko
Published: March 2024

Red ginger is one of the export commodities of spices in Indonesia which plays a significant role in the country's foreign exchange earnings. In order to meet market demand, ginger cultivation needs to be fertilized both organically and inorganically to increase production. ZA fertilizer for plants serves to stimulate vegetative growth. This study aims to determine the response of red ginger to the application of ZA fertilizer has a significant effect on the growth and yield of red ginger and to obtain the optimum dose of ZA fertilizer for the growth and yield of red ginger. This research was carried out in March - August 2021 until it was completed in Pelem Hamlet, Wonorejo Village, Jatiyoso District, Karanganyar Regency, Central Java Province with coordinates 7°43'24.7”S 111°05'31.2”E. The experimental design was a Completely Randomized Complete Block Design (RCBD). This study consisted of 4 treatments with 6 replications so that 24 experimental units were obtained, while the treatments in this study were as follows: P0: Control without ZA fertilizer, P1: Treatment 225 Kg ZA/ha or 22.5 g/m2, P2: Treatment 450 Kg ZA/ha or 45 g/m2, and P3: Treatment 675 Kg ZA/ha or 67.5 g/m2. The results showed that ZA fertilizer had no significant effect on the yield of red ginger, but on growth observations, P2 treatment with a dose of 450 Kg ZA/ha can have a significant effect on the increase in the number of plants per plot. The dry weight of the stover was strongly correlated with the weight of fresh rhizomes with correlation values (r) 0.508.
DNA Damage in Prader Willi Syndrome Against Obesity
Authors: Mursalin Diennisa
Published: March 2024

Prader Willi Syndrome is a multisystem genetic disorder caused by deletions of paternal chromosomes (75%), maternal chromosomal dysomi (25%), and translocations (1%). This syndrome has a main characteristic, namely the state of obesity in individuals sufferers where. This is due to deficiency of Growth Hormone levels due to central hypothalamic-limbic disorders that occur in this syndrome. This syndrome has a characteristic course of obesity in every phase of life. The obesity that is characteristic of this syndrome causes diverse complications because it causes DNA damage through chronic inflammation caused by an increase in pro-inflammatory cytokines due to the buildup of adipose tissue. Thus, individuals with PWS can experience various metabolic diseases that can increase their morbidity and mortality.
Effect of Auxin and Cytokinin on Orchid Subculture Resulting from Coelogyne Crosses
Authors: Hartati Sri , Yunus Ahmad , Iistikharoh Iistikharoh
Published: March 2024

The black orchid or Coelogyne is one of the native orchids of Kalimantan, widely cultivated in Indonesia. Several species of Coelogyne orchids have been crossed to obtain new superior-quality plants. Modifying the media, such as giving PGR, is necessary for good plant multiplication results. This research was conducted by changing MS growing media with ZPT BA and NAA. This experiment aimed to determine the effect of ZPT BA and NAA on the growth of orchid subcultures from a cross between Coelogyne pandhurata and Coelogyne rumphii. The study used a completely randomized design (RAL) with 2 factors, namely ZPT BA and NAA, each having a concentration of 0 ppm, 0.2 ppm; 0.4 ppm, and 0.6 ppm with 16 treatment combinations and 4 replications. They were implemented at the Laboratory Plant Physiology and Biotechnology, Faculty of Agriculture, UNS Surakarta, from November 2020 to March 2021. The variables observed included the number of shoots, plant length, plant weight, number of leaves, number of roots, root length, when roots appeared, and when shoots appeared. The results showed that BA 0.6 ppm gives the best output on the growth of the number of shoots, and NAA concentration of 0,2 ppm gives the best results on the variable number of roots. The combination of BA 0.6 ppm and NAA 0.2 ppm gave the best results on plant weight growth.
Kesadaran dan Lingkungan Kerja para Penjual Tanaman Hias, Satwa dan Komponen Lain-lain di Pasty, Kota Yogyakarta
Authors: Djaja Hendra
Published: March 2024

Mudah diucapkan tetapi sulit untuk dilaksanakan. Itulah ungkapan yang kira-kira sama artinya dengan faktor kesadaran dan lingkungan di tempat kerja para penjual tanaman hias, satwa dan komponen lain-lain di ‘Pasty’ kota Yogyakarta. Penelitian ini adalah, untuk mengetahui sejauh mana faktor kesadaran dan lingkungan di tempat kerja dipahami dan dimengerti sepenuhnya oleh para penjual. Penelitian ini menggunakan teknik Stratified Random Sampling terhadap para penjual yang distratakan sesuai dengan jenis dagangan yang dimiliki. Dari berbagai jenis dagangan setelah dilakukan penghitungan, lebih 85% dari seluruh penjual di ‘Pasty’ yang terdata hadir berjualan, sementara sisanya menutup lapak dagangannya. Dari situ, kemudian para penjual dari beragam jenis dagangan tadi diambil datanya dengan menggunakan kuesioner secara random (acak) sambil melakukan pengamatan dan wawancara singkat apabila diperlukan. Hasil penelitian yang diperoleh sebagai berikut: pertama, jika hanya sekadar faktor kesadaran semata dari para penjual tanpa dihubungkan dengan faktor lain maka penjual komponen lain-lain merupakan pedagang yang paling ‘sadar’ mengenai pentingnya kebersihan di lingkungan kerja mereka dibandingkan dengan penjual jenis dagangan lain; Kedua, namun jika hanya faktor lingkungan semata dari para penjual tanpa dihubungkan dengan faktor lain maka penjual tanaman hias yang paling ‘sadar’ mengenai pentingnya kebersihan  di lingkungan kerja mereka dibandingkan dengan penjual jenis dagangan lain; Ketiga,  jika  dihubungkan antara   faktor kesadaran dan  lingkungan para penjual tanaman hias, satwa dan komponen lain-lain maka penjual komponen lain-lain yang paling ‘sadar’ akan kebersihan di lingkungan kerjanya.  Keempat, jika digabung untuk semua jenis dagangan maka sedikit lebih ‘sadar’ pada penjual komponen lain-lain daripada pedagang lain. Catatan tambahan:  Diketahui bersama bahwa, untuk semua jenis dagangan berlangsung di bawah 50% tentang kesadaran dan ‘lingkungan’ di tempat kerja mereka. Itu artinya, semua jenis dagangan di ‘Pasty’ kota Yogyakarta perlu mendapatkan sosialisasi tentang perlunya kesadaran dan lingkungan agar konsumen tertarik untuk membeli dan berdatangan ke ‘Pasty’ kota Yogyakarta.

 

 

Kata Kunci:  kesadaran, lingkungan, tempat kerja, para penjual