bluuebunny/crossref_metadata_2025 huggingface dataset:
The effects of altitude and rearing period on some characteristics of honey bee queens, Apis mellifera caucasica Gorbachev, 1916 (Hymenoptera: Apidae)
Authors: CANVERDİ Nazlı , ÖZMEN ÖZBAKIR Gonca , ÇANKAYA Soner , DUMAN Muzaffer , KAYABOYNU Ümit , YILMAZ Fatih , ESE Hasan , GÜNBEY Belgin
Published: October 2023

In the study, some characteristics of honey bee queens, Apis mellifera caucasica Gorbachev, 1916 (Hymenoptera: Apidae), reared at two different altitudes (140 m vs 920 m) and three rearing seasons (May, June-I, June-II) in 2019-2020 were examined in Ordu. These are larvae grafting, length of the queen cell, weight of queens at various periods, and spermathecae parameters of queens. One-day old 50 larvae were grafted at each period and altitude. The effect of period and period*altitude interaction on the weight at emergence of queen was significant (p<0.001) while the effect of altitude and year was nonsignificant. Weights at emergence of queens were lower in May at high altitudes and in June-II at low altitudes. The effects of year, period and altitude were significant (p<0.001) in the terms of the diameter and volume of the spermathecae, and the number of spermatozoa in the spermathecae. When the two-year data was evaluated together, the number of spermatozoa in the spermathecae was higher in the queen bees reared in May. It is recommended to pay attention to the period and altitude when pollen and nectar flow is intense in queen rearing in Ordu and similar climatic conditions.
A study of whether the genetic variation decreased or not in the protected Caucasian bee, Apis mellifera caucasica Pollmann, 1889 (Hymenoptera: Apidae) population in isolated regions
Authors: YILDIZ Berkant İsmail , TÜTEN Emel , AYDIN Sinan , KARADUMAN ASLAN Yaprak , ÇETİN Ramazan , SUR Erdem , KARABAĞ Kemal
Published: October 2023

The Caucasian honeybee, Apis mellifera caucasica Pollmann, 1889 (Hymenoptera: Apidae), is one of the most productive bee subspecies. This subspecies, which has special importance for Türkiye, has been taken under protection in two isolated regions (Artvin and Ardahan) since 2000. To date, no study has been conducted on whether genetic diversity has decreased in these protected Caucasian honeybee colonies. Therefore in 2022, worker bees were collected from 100 different colonies in 15 different locations in these two regions and their genetic variations were examined using 30 microsatellite loci. The average number of alleles per locus was 13.57, and the loci had a high level of information content according to the PIC (0.7) value. FIS (0.96) and FST (0.01) values showed low genetic diversity and high inbreeding in populations. Genetic variations were calculated as 0.77% among populations, 99.23% among individuals in populations, and 0% among all individuals. Also, populations deviated from the Hardy-Weinberg equilibrium (p<0.001). Significant bottleneck evidence was found for Artvin in the analysis results using the two-phase mutation model. These results provide important information that can be used as a guide for Caucasian bee breeding strategies and conservation programs.
Identification of odorant receptor protein genes in two Cephid stem borers (Hymenoptera: Cephidae) by high-throughput sequencing
Authors: BUDAK Mahir
Published: October 2023

Insects are well adapted organisms to the terrestrial life on Earth. The evolution of the odorant receptor family is one of the causes underpinning this remarkable adaptation. Odorant receptors (ORs) sense aromas in the environment and cause the insect to respond. The ability of phytophagous insects to detect odor signals from their hosts is crucial for mating, oviposition, and feeding. The family of odorant receptor genes in Cephidae, pest on some economically important plants, is little understood. Bioinformatic tools were used to analyze the genomic data of the two pest species, Syrista parreyssii (Spinola, 1843) (Hymenoptera: Cephidae) (a rose pest) and Pachycephus smyrnensis J.P.E.F. Stein, 1876 (Hymenoptera: Cephidae), (a poppy pest), to determine their odorant receptors. The whole genome sequencing of P. smyrnensis collected in Sivas in 2020 was performed by next generation sequencing and short reads of S. parreyssii genome were obtained from previous studies. Following bioinformatic analyses, 67 and 82 putative odorant receptor genes were identified and annotated for P. smyrnensis and S. parreyssii, respectively. The ORs of these two species were found to be organized as repetitive genes in five separate clusters. No species-specific OR genes were identified in any of the investigated species. As a result, it was hypothesized that host specificity was acquired through the combined effect of multiple ORs.
A Systematic Literature on K-Economy Readiness in Higher Education
Authors: Nuraini Umi , Sahid Sheerad , Hussin Muhammad
Published: October 2023

Objective: This paper aims to: (1) identify the factors that influence K-Economy readiness in higher education; (2) map the factors that influence K-Economy readiness based on the four pillars of K-Economy; and (3) analyze the implications of factors influencing K-Economy readiness for the role of higher education in the K-Economy era. By knowing the factors that influence K-Economy readiness, the results of this study can make a practical contribution to higher education in the world so that it can fully participate and be ready to compete in the K-Economy era. Methodology: This paper uses a systematic literature review to answer research questions, while the PRISMA technique is used to collect and screen Scopus and WoS articles from 2000 to 2022. Results: This paper finds nine factors influencing K-Economy readiness in higher education. The nine identified factors refer to the competencies needed in the K-Economy era. Discussion and conclusions: Strategic external partnerships with higher education must be done continuously in the future. Workers and employers continue to prioritize education as the nature of work has changed, and there is a need for those who work to continuously improve their skills. Higher education should emphasize exceeding student expectations by examining the demands of the target job market to fulfill those needs.
Türk Savunma Sanayinde Teknik Destek Sağlayıcı Modeli: Altay Projesi Dönem-I Örneği
Authors: ÇAKMAK Tanyel
Published: October 2023

Bu çalışmada, Türk savunma sanayinde 2004 yılından sonra görülen yabancı teknik destek sağlayıcı modeliyle sistem geliştirme süreci, ilk örneği olan Altay Ana Muharebe Tankı Geliştirme Projesi Dönem-I örneği ile değerlendirilmiştir. Yapılan çalışmada, dünyanın en modern tankları arasında yer alan ve çok kısa sürede kazanılan teknolojilerle bir başarı hikâyesi olan Altay Projesi tarihçesi ele alınmıştır. Ardından, teknoloji yönetimi bakış açısıyla, yabancı teknik destek modeli, “tasarım yeteneğine/teknoloji kazanımına” ve “proje süresine” katkıları bakımından değerlendirilmiştir. Savunma Sanayi Başkanlığı’nın mimarı olduğu bu savunma sistemi tedarik modeliyle yurtiçinde geliştirilecek savunma sisteminin çağın en ileri teknolojileriyle donanması hedeflenmiştir. Altay projesi örneğinde, yurtiçinde kabiliyet kazanımı süresinin benzer projelere göre daha kısa olduğu ortaya konulmuştur. Yabancı teknik destek sağlayıcı modeliyle yapılan yurtiçinde sistem geliştirme projelerinde, teknik destek sağlayan ve alan kuruluşların aynı fiziksel ortamı paylaşmalarının, çalışma dilinin ortaklığının, her iki ülkenin de savunma altyapılarının ve sistem mühendisliği süreçlerinin uyumlu olmasının sürece olumlu katkıları olduğu değerlendirilmiştir. Gelecekteki çalışmalar için Milli Muharip Uçak Geliştirme Projesi Dönem-I Aşama-I çalışmalarında alınan yabancı teknik desteğin Altay Projesi Dönem-I örneği ile kıyaslaması suretiyle kara ve hava savunma sistemi geliştirme süreçleri açısından modelin değerlendirilmesi önerilmektedir.
INFLUENCE OF GRAPHENE NANOPLATELETS ON MECHANICAL AND THERMO-MECHANICAL PROPRTIES OF GLASS/EPOXY COMPOSITES
Authors: Shaik Shabberhussain , R Velmurugan
Published: October 2023

The current work focuses on the influence of graphene nanoplatelets (GPs) on the mechanical and thermo-mechanical properties of unidirectional glass/epoxy (GE) composites. GE and GP-GE composites are fabricated using the hand lay-up method followed by compression molding. Different percentages of GPs used in the fabrication of GP-GE composites are (0.1, 0.3, 0.5, and 0.7) w/% by weight of the epoxy. Tests are conducted to experimentally evaluate the uniaxial compressive properties and the coefficient of linear thermal expansion (CLTE) in the direction of fibers. Tests are also conducted to study the thermo-mechanical properties such as storage modulus (E’) and loss modulus (E’’). The variation in the storage modulus and loss modulus is measured from 15 °C to 125 °C, using a dynamic mechanical analyzer (DMA) while the CLTE is measured using a dialatometer. The results indicate that the compressive as well as thermo-mechanical properties increase with the addition of GPs up to 0.5 % and then they decrease. The addition of GPs has no effect on the CLTE of the GE composites in the fiber direction.
EFFECT OF TEXTURED CUTTING INSERTS IN MICRO-TURNING OF TI-6AL-4V ALLOYS
Authors: G.L. Samuel , Tere Rajesh Babu
Published: October 2023

There is an increasing demand for higher machining quality and service life of the cutting tools used for the machining of high-strength alloys. Various studies revealed that textured cutting tools could improve the cutting performance by enhancing the tribological characteristics of the cutting regime. Advances in precision machining enabled the creation of micro/nano-textures on tool surfaces with excellent dimensional control. In this work, distinct micro designs, viz. horizontal line, vertical line and cross-hatch, are made, varying the pitch on the rake faces of coated carbide cutting inserts (CCMT060202LF KC5010). An in-house micro-turning machine was utilized to perform all the experiments in dry-cutting conditions. Micro-turning operations were performed using plain and textured inserts and varying the cutting parameters under dry conditions. The effectiveness of micro-scale textures at a contact interface was evaluated based on the cutting forces, tool flank wear and surface roughness. Compared to non-textured inserts, the machining using cross-hatch textured inserts with 100 µm pitch resulted in 50 % lower cutting forces, a 45 % improved surface finish and 37 % reduced tool flank wear. When machining with horizontal-line textured inserts with a 100 µm pitch, cutting forces are reduced by 46 %, the surface finish is enhanced by 34 % and the tool flank wear is lowered by 30 %. Similarly, when machining with vertical-line textured inserts with a 100 µm pitch, cutting forces are minimized by 38 %, the surface finish is improved by 20 % and the tool flank wear is lowered by 26 %. Additionally, a durability test was conducted for the inserts, and the results showed that the cross-hatch textured tool life improved by 80 %, the life of the horizontal-line textured tool increased by 50 % and the life of the vertical-line textured tool increased by 40 % compared to plain inserts. The heat dissipation and tool-chip friction during machining are thus significantly influenced by the texturing, namely by its design, dimensions and orientation.
OPTIMIZATION OF PROCESS PARAMETERS FOR A SOLID-STATE-WELDED AISI 430 STEEL JOINT WITH THE GRG REINFORCED RESPONSE SURFACE METHODOLOGY
Authors: G. Senthilkumar , Vinodkumar V. , Mayavan T. , Rathinasabapathi G.
Published: October 2023

High-temperature applications such as heat exchangers and burner tubes employ AISI 430 steel. A larger heat-affected zone, undesired metallurgical changes and higher hardness in the weld area occur when fusion welding this type of steel. The study investigates the feasibility of welding ferritic stainless steel AISI 430, utilizing a solid-state method (continuous drive friction welding). The experiment uses an L27 orthogonal array and three levels of variation in the welding parameters such as frictional pressure, forging pressure, friction time, forging time and rotational speed. Tensile strength, axial shortening and impact toughness are the observed quality characteristics. In an integrated approach of the grey incidence reinforced response surface methodology, the benefits of the grey relational theory are merged with the statistical analysis of the response surface methodology to determine the ideal friction welding inputs (frictional pressure – 59.95 MPa, friction time – 4 s, upset pressure – 68.5 MPa, forging time – 3 s and rotational speed – 1399 min–1). The AISI 430 steel joint’s qualities are improved by 2.25, 12.74 and 7.89 % in terms of the maximum ultimate tensile strength, axial shortening and impact toughness, respectively.
INFLUENCE OF THE BUILD AXIS AND ANGLE ON THE PROPERTIES OF 3D PRINTED PLA
Authors: Anand Ronald B  , K. N. Mohammed Riaz Khan , G. Kishore , V. Lokesh , R. K. Mullaivananathan
Published: October 2023

Additive manufacturing is one of the sought-after methods for on-demand printing of customized parts. Although it has several advantages, namely design complexity, topologically optimized parts, tool-less and inventory-less manufacturing, etc., it also has challenges in terms of print parameter-dependent mechanical properties. The present paper studies the influence of the build orientation and angle on the tensile and flexural properties of fused-deposition-modelling (FDM) printed polylactic acid (PLA) samples. The samples are printed in different orientations including 0°, 15°, 30°, 45°, 60°, 75° and 90° with respect to the X- and Y-axis. From the tensile and flexural studies, we can infer that the orientation of the print plays a significant role, influencing the tensile and flexural properties. The X-axis build orientation and 75° build angle are preferred owing to better tensile and flexural properties compared to the other angles and Y-orientation.
BIOMECHANICAL ANALYSIS OF AN OPTIMIZED PATIENT-SPECIFIC DENTAL-IMPLANT SCREW IN THE POSTERIOR MANDIBLE
Authors: Selvakumar N. , P. Balamurugan
Published: October 2023

Implant design developed considerably with the advancement of restorative dentistry. Examining the stress distribution in the cancellous and cortical bones around custom-made implants with different thread-profile models is the study’s objective. The newly designed implants were made with a diameter and length of 4.5 mm and 11.5 mm. The implants were designed the same, but had different thread profiles. Model A is designed with a standard V-shape thread design, and it was compared with the remaining three dental implants (models B, C, and D) having different customized thread-profile designs. The biomechanical characteristics of the four implant models were compared with the use of biomechanical profiling to predict the mechanical performance of various dental-screw models, including the influence of physiological factors. The stress distribution in the D4 bone area of implants with different thread-profile designs under a vertical load of 100 N at 0° and an oblique load of 223.6 N at 25° was examined using ANSYS Workbench. The trabecular and cortical bones comprise the structure of the D4 bone area. Deformation and stress (von Mises) findings were found for the dental implants and bone. While implant models C and D showed less stress distribution in the cortical and cancellous bone, they nonetheless produced outcomes superior to those of the conventional model A underloading. According to the findings, the unique dental implant design lessens the stress concentration in the cortical bone’s neck area. The suggested model C increases the implant’s stability in that region by distributing a low stress over the D4 bone.
HYBRID COMPOSITES REINFORCED WITH GRAPHENE AND TITANIUM CARBIDE IN AA7068 MATRIX: EVALUATION OF MECHANICAL AND TRIBOLOGICAL PROPERTY
Authors: Nambirajan Naganambi , Selvakumar N.
Published: October 2023

The present work deals with the fabrication of AA7068 as a matrix reinforced with different weight percentages of titanium carbide (0, 0.5, 1, 1.5, 2, and 2.5) % and with a constant weight percentage of graphene of 1 % using the stir casting method. The objective of this work is to study the mechanical and tribological properties of the hybrid composite. The uniform distribution of graphene and titanium carbide particles in the AA7068 matrix was validated with SEM investigations of the manufactured composite. A tensile test was performed, and a maximum ultimate tensile strength (UTS) of 199 MPa and a low percentage of elongation of 4.42 were obtained for the AA7068-1.0 w/% graphene-2.5 w/% TiC composite. The hardness of the composite was measured using a Rockwell hardness tester, and a maximum value of 63 HRB was obtained for the AA7068-1.0 w/% graphene-2.5 w/% TiC composite. The hardness increased as the percentage of TiC increased. The impact strength was determined with a Charpy test, and a maximum value of 4.5 J was obtained for the AA7068-1.0 w/% graphene-2.5 w/% TiC composite. A dry sliding wear test was performed in a pin-on-disc wear testing machine with different loads (5, 10 and 15) N, a constant sliding speed of 1000 min–1, and a sliding distance of 1000 m. The sample having 2.5 w/% TiC had a lower coefficient of friction and lower wear loss under different load conditions. Due to the presence of graphene and TiC reinforcements, the composites’ tensile, hardness and tribological properties improved significantly when compared to the aluminium alloy 7068 matrix.
Simulation model of an intelligent transportation system for the “smart city” with adaptive control of traffic lights based on fuzzy clustering
Authors: Beklaryan Armen , Beklaryan Levon , Akopov Andranik
Published: October 2023

This article presents a new simulation model of an intelligent transportation system (ITS) for the “smart city” with adaptive traffic light control. The proposed transportation model, implemented in the AnyLogic, allows us to study the behavior of interacting agents: vehicles (V) and pedestrians (P) within the framework of a multi-agent ITS of the “Manhattan Lattice” type. The spatial dynamics of agents in such an ITS is described using the systems of finite-difference equations with the variable structure, considering the controlling impact of the “smart traffic lights.” Various methods of traffic light control aimed at maximizing the total traffic of the ITS output flow have been studied, in particular, by forming the required duration phases with the use of a genetic optimization algorithm, with a local (“weakly adaptive”) switching control and based on the proposed fuzzy clustering algorithm. The possibilities of optimizing the characteristics of systems for individual control of the behavior of traffic lights under various scenarios, in particular, for the ITS with spatially homogeneous and periodic characteristics, are investigated. To determine the best values of individual parameters of traffic light control systems, such as the phases’ durations, the radius of observation of traffic and pedestrian flows, threshold coefficients, the number of clusters, etc., the previously proposed parallel real-coded genetic optimization algorithm (RCGA type) is used. The proposed method of adaptive control of traffic lights based on fuzzy clustering demonstrates greater efficiency in comparison with the known methods of collective impact and local (“weakly adaptive”) control. The results of the work can be considered a component of the decision-making system in the management of urban services.
Ecosustainable Narratives and Partnership Relationships in World Literatures in English
Authors: Thieme John
Published: October 2023

Review a: Antonella Riem Natale & Tony Hughes d’Aeth (eds). 2022. Ecosustainable Narratives and Partnership Relationships in World Literatures in English. Newcastle upon Tyne: Cambridge Scholars Publishing, 185 pp.
Narrative Rewritings and Artistic Praxis in Derek Walcott’s Works: Caribbean Decolonisations
Authors: Fumagalli Maria Cristina
Published: October 2023

Review a: Mattia Mantellato. 2022. Narrative Rewritings and Artistic Praxis in Derek Walcott’s Works: Caribbean Decolonisations. Newcastle upon Tyne: Cambridge Scholar Publishing, 344 pp.
Oltre la mappa. Lo spazio delle storie nell’immaginario moderno. Shakespeare, Beckett, Danielewski
Authors: Cao Claudia
Published: October 2023

Review a: Lucia Esposito. Oltre la mappa. Lo spazio delle storie nell’immaginario moderno. Shakespeare, Beckett, Danielewski. 2021. Napoli: Edizioni Scientifiche Italiane, 156 pp.
Eleanor Marx. Traduttrice vittoriana e militante ribelle
Authors: Marino Elisabetta
Published: October 2023

Review a: Michela Marroni. 2021. Eleanor Marx. Traduttrice vittoriana e militante ribelle. Pisa: Edizioni ETS, Collana: diagosfera, n. 24, 160 pp.
mitochodnrial assays in human muscle biopsies v1
Authors: Ahn Bumsoo
Published: October 2023

This protocol simultaneously measures mitochondrial respiration and hydrogen peroxide generation rates in human muscle biopsy tissues. The protocol also includes methods for measurement of mitochondrial sensitivity to ADP and responses to metformin.
Pemodelan Perambatan Gelombang Mixed Rossby-Gravity di Lapisan Stratosfer Bawah Menggunakan Algoritma Linier Gauss-Newton
Authors: Syafina Rizkia Putri , Noersomadi Noersomadi , Dasep Dasep
Published: October 2023

The energy transfer process transported by equatorial atmospheric waves has a potential effect on climate change issues. For detecting wave propagation, an analysis of the vertical atmospheric profile could be obtained from radiosonde balloon observations. This study aims to apply the Gauss-Newton linear algorithm model on the temperature (T) and the northward wind component (v) variables in the lower stratosphere, the layer around the altitude of 21 km above sea level. Fluctuations of T and v triggered a non-linear problem in determining the wave parameters, including amplitude and phase. These two parameters are examined using a non-linear inversion method with a linear Gauss-Newton approximation. The results showed that fluctuations in T and v of the model and observation data coincide with the value range -4.5 to 4.5 K (cold-warm) and -15 to 15 m/s (southward-northward wind). There is a movement in T fluctuations to the westward in the period of 13–24 April 2021. Likewise, a similar movement in v fluctuations was indicated during 13–22 May 2021. The westward propagation represented the propagation of the Mixed Rossby-gravity wave.Keywords: Atmospheric Waves, Gauss-Newton Linear Method, Northward Wind Component, Temperature.AbstrakProses transfer energi yang dibawa gelombang atmosfer ekuatorial berpotensi mempengaruhi isu perubahan iklim. Untuk mendeteksi perambatan gelombang dapat dilakukan analisis data vertikal atmosfer dari pengamatan balon radiosonde. Penelitian ini bertujuan menerapkan model algoritma linier Gauss-Newton terhadap variabel temperatur (T) dan komponen angin utara-selatan (v) di lapisan stratosfer bawah atau ketinggian 21 km di atas permukaan laut. Fluktuasi T dan v memunculkan masalah non-linier dalam pencarian parameter gelombang berupa amplitudo dan fasa. Kedua parameter tersebut dicari menggunakan metode inversi non-linier dengan pendekatan linier Gauss-Newton. Hasil penerapan model menunjukkan nilai yang berhimpit pada fluktuasi T dan v dengan rentang nilai –4,5 hingga 4,5 K (dingin-hangat) dan –15 sampai 15 m/s (arah angin menuju selatan-utara). Untuk variabel T, terlihat adanya pergerakan menuju ke arah barat pada rentang waktu 13–24 April 2021, demikian pula pada variabel v terdeteksi pergerakan ke arah yang sama untuk rentang waktu 13–22 Mei 2021. Perambatan gelombang ke arah barat ini merepresentasikan penjalaran gelombang Mixed Rossby-Gravity.
Aplikasi Algoritma Simulated Annealing untuk Pemodelan Fluktuasi Temperatur di Lapisan Tropopause
Authors: Dasep Dasep , Noersomadi Noersomadi , Syafina Rizkia Putri
Published: October 2023

Atmospheric conditions influence various sectors of human activity, so it is important to study the dynamics of the atmospheric layers, especially those related to temperature fluctuations. The aim of this research is to investigate the model of temperature fluctuations in the tropopause layer (at an altitude of 17 km) by determining the wave amplitude and phase parameters. The method for obtaining parameters is defined as simulated annealing inversion, which is a simulation of finding solutions at global critical points. The data used in this study are temperature at 17 km, which retrieved from the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) Mission #2 GNSS radio occultation satellite during April–May 2021. The results of the annealing simulation show that the amplitude and phase parameters of atmospheric waves in the tropopause layers vary between 3.4–23.86 K and 7.3–52.5°, respectively. The simulation model shows that the temperature spreads from west to east and fluctuates between –25 and 25 K.Keywords: Atmospheric Waves, Simulated Annealing, Temperature, Tropopause Layer. AbstrakKondisi atmosfer mempengaruhi berbagai sektor kegiatan manusia, sehingga studi tentang dinamika di lapisan atmosfer penting dilakukan terutama terkait dengan fluktuasi temperatur. Tujuan dari penelitian ini memodelkan fluktuasi temperatur di lapisan tropopause (ketinggian 17 km) dengan mencari nilai parameter amplitudo dan fasa gelombang yang mendekati data pengamatan. Metode pencarian parameter tersebut adalah inversi simulated annealing, yaitu simulasi pencarian solusi pada titik kritis global. Data penelitian ini adalah variabel temperatur di 17 km yang bersumber dari pengamatan satelit Constellation Observing System for Meteorology, Ionosphere and Climate (COSMIC) Mission #2 GNSS radio occultation selama periode April-Mei 2021. Hasil simulasi annealing menunjukkan parameter amplitudo dan fasa gelombang atmosfer di lapisan tropopause berturut-turut bervariasi pada rentang 3,4–23,86 K dan 7,3°–52,5°. Model simulasi menunjukkan perambatan temperatur dari arah barat ke timur dan berfluktuasi pada selang –25 sampai 25 K.
Boosted Regression Trees
Authors: Pramiesti Wulan Dian , Agustina Fitriani , Marwati Rini
Published: October 2023

A regression tree is a data analysis technique that aims to determine the effect of all explanatory variables on the response variables. However, it turns out the regression tree method has a weakness that is the hierarchical structure allows for high variance predictors. The weakness of this regression tree method can be above using the Boosted Regression Trees (BRT) approach. The BRT approach uses a boosting technique to combine multiple regression trees in an additive manner so that the resulting variance is smaller than the previous variance. This study uses the BRT method for a case study of factors affecting the level of crime in East Java in 2018. Through 89 obtained optimal trees, the most important crime rate factors are the number of youth (model importance of 31.86%), followed by the percentage of poor population (11.14%), junior high school gross enrollment rate (9.67%), elementary school gross enrollment rate (8.98%), road stability (8.81 %), senior high school gross enrollment rate (8.67%), distance to the capital city of Surabaya (7.25%), open unemployment rate (7.02%), Gross Domestic Regional Product (GRDP) (5.32%), and population density (1.25%)..Keywords: Boosted Regression Trees, Boosting, Crime Rate, Regression Trees.AbstrakPohon regresi merupakan teknik analisis data yang bertujuan untuk mengetahui pengaruh semua peubah penjelas terhadap peubah responnya. Namun, ternyata metode pohon regresi memiliki kelemahan yaitu struktur hierarkisnya memungkinkan terjadinya varians yang tinggi. Kelemahan metode pohon regresi ini dapat diatasi dengan menggunakan pendekatan Boosted Regression Trees (BRT). Pendekatan BRT menggunakan teknik boosting untuk menggabungkan beberapa pohon regresi secara aditif sedemikian sehingga nilai varians yang dihasilkan lebih kecil dari nilai varians sebelumnya. Penelitian ini menggunakan metode BRT untuk studi kasus menentukan faktor-faktor yang memengaruhi tingkat kriminalitas di Jawa Timur tahun 2018. Melalui 89 buah pohon optimal yang terbentuk, diperoleh kesimpulan bahwa faktor yang memengaruhi tingkat kriminalitas tertinggi adalah jumlah pemuda (31,86%), diikuti oleh persentase penduduk miskin (11,14%), Angka Partisipasi Kasar (APK) SMP (9,67%), APK SD (8,98%), kemantapan jalan (8.81%), APK SMA (8,67%), jarak ke ibukota Surabaya (7,25%), tingkat pengangguran terbuka (7,02%), Produk Domestik Regional Bruto (5,32%), dan kepadatan penduduk (1,25%).
Penyelesaian Capacitated Vehicle Routing Problem dengan Menggunakan Gabungan Algoritma Genetika dan Simulated Annealing
Authors: Firmansyah Yusup Syarif , Novianingsih Khusnul , Husain Husty Serviana
Published: October 2023

The capacitated vehicle routing problem (CVRP) is a problem of distributing a number of goods using vehicles with limited carrying capacity that needed to pick up or deliver items at various locations, such as round trips from a store to customers. The goal of CVRP is to obtain a route with shortest travel distance. This research proposed the combination of genetics algorithm with simulated annealing (GASA) to solve CVRP. The first step in GASA is to represent customer as chromosomes, calculate fitness values, selection, crossover, and mutation. After that we continue to optimize the problem using SA algorithm by modifying the best solution produced by GA algorithm, comparing the fitness of modified best solution with the best solution of GA, and return to GA algorithm until maximum iteration achieved. Thus, GASA has greater chance to obtain global optimal solution. To simulate the algorithm, GASA was used for CVRP of an ice cream company in Bandung City and was able to solve it well.Keywords: Capacitated Vehicle Routing Problem (CVRP), Genetic Algorithm (GA), Optimization, Simulated Annealing (SA). AbstrakCapacitated Vehicle Routing Problem (CVRP) adalah permasalahan pendistribusian sejumlah barang oleh kendaraan yang tersedia dengan kapasitas tertentu dari suatu depot ke sejumlah pelanggan lalu kembali ke depot. Tujuan penyelesaian CVRP adalah untuk menentukan rute pendistribusian dengan total jarak terpendek. Pada penelitian ini, digunakan gabungan algoritma genetika dan simulated annealing (GASA) untuk menyelesaikan permasalahan CVRP. Algoritma GASA bekerja dengan cara melakukan tahapan-tahapan pada Algoritma GA yaitu merepresentasikan kromosom, menghitung nilai fitness, seleksi, crossover, dan mutasi, kemudian dilanjutkan ke tahapan-tahapan Algoritma SA yaitu memodifikasi solusi terbaik yang diperoleh dari Algoritma GA sebelumnya, membandingkan nilai fitness solusi hasil modifikasi dengan solusi terbaik pada Algoritma GA, setelah itu melakukan kembali tahapan-tahapan Algoritma GA sampai iterasi maksimum tercapai. Dengan demikian gabungan GA dan SA mempunyai peluang besar untuk memberikan solusi optimal global. Hasil implementasi model CVRP dan Algoritma GASA pada masalah pendistribusian es krim suatu perusahaan di Kota Bandung diperoleh kesimpulan bahwa Algoritma GASA dapat menyelesaikan masalah tersebut dengan baik.
Safety Extension Proposal using IO-Link Wireless
Authors: Doebbert Thomas , Beuster Henry , Scholl Gerd , Schlögl Walter , Supavatanakul Peerasan
Published: October 2023

This article descibes an enhancement of IO-LinkWireless with an additional safety and security communication layer employing the black channel principle to fulfill safety requirements with respect to IEC 61784-3:2021. An extended channel model based on uniformly distributed segments (UDS) superimposed with the binary symmetric channel (BSC) is applied to simplify the residual error probability (REP) calculation, to detect additional error patterns, and to consider BSC-preserved cryptographic algorithms. Also, the REP with respect to the underlying security layer as well as the probability of failure per hour are quantified.
Module Type Package in der Fertigungsautomatisierung
Authors: Habiger Pascal , Hildebrandt Gary , Drath Rainer , Fay Alexander
Published: October 2023

Das Module Type Package (MTP) verspricht die zügige und flexible Inte­gration und Orchestrierung von Produktionsmodulen zu einem Anlagen­verbund. Das MTP wurde für die Prozessautomatisierung entwickelt, seine Po­tentiale sind jedoch auch für andere Anwendungsdomänen viel­versprechend. In diesem Beitrag untersuchen die Autoren, ob und wie sich das MTP und seine Konzepte auf die Fertigungsautomatisierung über­tragen lassen. Im vorlie­genden ersten Teil des Beitrags leiten die Autoren den dafür notwendigen Hand­lungs­bedarf ab. Dabei werden Eigen­schaften der automatisierten Ferti­gung vor­gestellt, daraus Anforderungen an die MTP-Konzepte erhoben und anschlie­ßend der Handlungsbedarf abgeleitet. In einem anschließenden zwei­ten Beitragsteil wird eine kon­krete Umsetzung dieses Handlungs­bedarfs vorgestellt.
Transfüzyon ilişkili GVHH
Authors: YASLIKAYA Şendağ , BİTER Sedat , KOBA Merve , ERDOĞAN Merve , TOZLUKLU Naciye Nur , IŞIK Bektaş , PAYDAŞ Semra
Published: October 2023

Transfüzyonun, kendisi hayat kurtaran bir tedavi olabildiği gibi, hayatı riske atabilecek komplikasyonlara da neden olduğu görüldü. Transfüzyon ilişkili graft versus host hastalığı (Ti-GVHH), kan transfüzyonları sonrasında nadir gelişen fatal bir komplikasyondur. Tİ-GVHH ilk olarak 1960’lı yıllarda ise Nispet ve Heskop tarafından, immun özelliğini koruyan lenfositlerin immun yetmezliği olan bireye verilmesi ile gelişen mortal bir hastalık olarak tanımlandı. Tİ-GVHH en sık eritrosit transfüzyonu ile ilintili bulunsa da, trombosit, granülosit ve donmamış plazma transfüzyonları ile gelişebilmektedir. Temel mekanizması, immun sistemin birincil işlevi olan kendinden ve kendinden olmayanı ayırt etme fonksiyonuna bağlı olarak gelişir. Bu riske eşlik edecek ya immunsuprese bir alıcı veya transfüze edilen kan ile parsiyel bir HLA benzerliğinin de olması gerekmektedir. Hem primer hem de sekonder immun yetmezlik durumları ile Tİ-GVHH geliştiği bilinmektedir. Parsiyel HLA benzerliği, transfüzyonda alıcı ile vericinin HLA genlerinin kismi benzerliğini ifade eder. En sık semptomları, cilt döküntüsü, ateş, hepatit, pansitopeni, diyare, kemik iliği hipoplazisi/aplazisidir. Tanısı güç olup, öncelikle şüphelenme ile başlamaktadır.Tanısı gibi tedavisi de zor bir hastalıktır. Bu yüzden replasman endikasyonunu doğru koymak gerekmektedir. Replasman yapılması planlanaması durumunda riskli hastalarda kan ürünü ışınlanması sağlanmalıdır.Diğer önleyici yöntemler,patojen inaktivasyonu, dondurma-çözdürme ve lökosit filtrasyonudur.Kesin tedavisi allojenik kemik iliği naklidir. Nakile uygun olmayan veya nakile kadarki zamanda immunsupresif ajanlarda kullanılabilemektedir
A Research on CEO Branding
Authors: GÜREL Emet , NAZLI Azra Kardelen , ÇETİN Büşra , ÖZMELEK TAŞ Neslihan
Published: October 2023

“Personal branding” is a phenomenon that has attracted attention since it was first introduced by Tom Peters (1997). Starting from the assumption that every person is a “brand” with a value proposition, the concept of personal brand has expanded its scope over time and has created its own sub-types. The CEO brand is one of these subtypes. CEO branding means that the CEO can brand just like a product, service or institution. In this study, personal brand concepts and practices are analyzed on the axis of the CEO brand and on the basis of new media. The study was designed with a qualitative research method and was carried out using descriptive analysis. The sample of the research consists of CEO accounts that have accounts on LinkedIn. The sample of this study consists of 20 CEOs selected among “Turkey’s 50 Most Admired CEOs” who were awarded the Golden Leader Awards in 2021 as a result of the research conducted by KREA. It is desired to explain the CEO brand through the analysis themes of the study. It is aimed to explain the CEO brand through the analysis themes of the study. These themes, adapted from İbicioğlu et al. (2014) are; image management, differentiation, positioning, and career interest become prominent as the main themes of the study. The sub- themes of the study were examined in detail as contextual richness, personal and professional development, personal qualities, distinctiveness, professional photographs, professional achievements and positive features,professional abilities, professional titles and duties, professional competence, and future goals. The aim of this study is to examine personal brand practices, CEO brands’ use of new media within the scope of the determined sample and research, and to explain the appearance of CEO brands in new media in the context of personal brand with a descriptive analysis. With this analysis, it is aimed to provide a conceptual framework to the literature on the use of LinkedIn by CEO brands. Thus, it was desired to create a scope and definition area for personal branding and CEO branding, which is a relatively new topic in the field of communication studies. The methodology of this research is descriptive content analysis, which belongs to the qualitative research design. The qualitative data analysis program MAXQDA was used to evaluate the research data. Within the scope of the study carried out over MAXQDA, it has been determined that CEOs use new media effectively and carry out branding activities through new media. It has been found that this situation makes a positive contribution to the personal brands of CEOs and the brands of the institutions they work for. In other words, the results of this study create a sustainable CEO brand concept by displaying personal qualities parallel to the personal images of CEO brands and the images of institutions. It has been observed that the definition and scope of the CEO brand concept, the CEO branding process, and the vital importance of new media in the CEO branding process are as discussed in the literature.
Analysis of the Consumer Perceptions of Online Shopping: Case of Bangladesh
Authors: Karim B. M. Sajedul , Rahman Md. Mostafijur , Billah Md. Rashed , Nurunnahar  , Khatun Most. Tania , Hasan Md. Imran , Bodepudi Anusha , Reddy Manjunath
Published: October 2023

Though online shopping has become a new type of retail shopping, it has been adopted worldwide, including in Bangladesh, influencing ordinary citizens' lives. In Bangladesh, consumers have not been habituated to online shopping frequently. This study aims to identify consumer perceptions of online shopping in Bangladesh. The study has 140 sample sizes from the Chuadanga district by forming a self-structured closed-ended Questionnaire. The SPSS version 16.0 statistical tool is used in this study. Several statistical tools, like frequency tests and percentages, were used to measure the objective. We found that consumers are primarily young, below 30 ages, who shop online to save time, and for available varieties of products and services and prefer to pay through cash on delivery method. Most consumers feel risk in online shopping and are also concerned about the security of the payment system. Overall, Consumers are satisfied with online shopping. Also, this study has a few limitations. Future research with a larger sample size and additional variables is recommended.
Improving Safety in Rheumatology Patients by Closing Pre-screening Laboratory Care Gaps with Rheumatologist-Pharmacist Co-management
Authors: Salava Kristen , Patel Ruchi , Newman Eric , Nicoholas P. Daniel , Grassi Dante , Thomas Swana , Chronowski Joseph , Pugliese David , Cote Jonida
Published: October 2023

Objective: To close laboratory screening care gaps via rheumatology-pharmacy co-management in patients starting disease-modifying antirheumatic drugs. Methods: Laboratory data were obtained from patients who started disease-modifying antirheumatic drugs (DMARDs) during the pre-and post-intervention periods. The intervention consisted of a rheumatology-pharmacy collaborative screening with guideline-driven DMARD protocol for hepatitis B, hepatitis C, and tuberculosis. The care gap closure for patients starting any type of DMARDs such as a conventional synthetic disease-modifying antirheumatic drug (csDMARD), a biologic disease-modifying antirheumatic drug (bDMARD), or a targeted synthetic disease-modifying antirheumatic drug (tsDMARD), was defined as meeting hepatitis screening completion. The care gap closure for patients starting a bDMARD or tsDMARD alone was defined as meeting both the hepatitis and tuberculosis screening completion. The Chi square method was used for the statistical analysis of the data comparing laboratory screening rates of rheumatologists’ pre-intervention versus rheumatologist-pharmacist co-management post-intervention. Post-intervention, subgroup analysis of laboratory screening rates among rheumatologists alone versus rheumatologist-pharmacist co-management was also performed. Results: During the 30-month period 6/1/2019 to 11/30/2021, hepatitis screening for patients on DMARDs improved from 77% with rheumatologists alone to 82% with co-management post-intervention (P=0.005), whereas hepatitis/tuberculosis screening for patients on bDMARDs/tsDMARDs improved from 75% to 85% respectively (P=0.005). In post-intervention subgroup analysis, hepatitis screening for patients on DMARDs improved from 80% with rheumatologists alone to 95% with co-management(P=0.00), whereas hepatitis/tuberculosis screening for patients on bDMARDs/tsDMARDs improved from 83% to 94% respectively (P=0.033). Conclusion: By integrating clinical pharmacists into our rheumatology clinic, we significantly improved hepatitis and tuberculosis laboratory screening in our immunosuppressed rheumatic population. Implications: Rheumatologists can consider integrating clinical pharmacists into their practices to improve patient safety by closing laboratory screening care gaps in the immunosuppressed rheumatic population.
Aneurysmal Bone Cyst in the Distal Metaphysis of the Right Fibula: A Case Report
Authors: Willians Luis
Published: October 2023

21-year-old female patient, she presented increased volume and pain in the right ankle, imaging studies were carried out, evidencing alteration of the bone structure in the distal metaphysis of the fibula, having as a diagnostic option by clinic, epidemiology and imaging, ANEURISMATIC BONE CYST, due to the location of said lesion, and taking into account the percentage of recurrence of the aforementioned lesion, it was decided to perform in bloc resection of the lesion and reconstruction with ipsilateral fibula autograft, descending it and fixing it with osteosynthesis, to maintain the anatomy of the lesion. the ankle joint.
Obesity, Diastasis Recti, EURO “Incidence & Prevalence of Diastasis Recti, & its Association with Obesity in the Eastern region of the Kingdom of Saudi Arabia”
Authors: HASAN UWAIS , AlMasoud Moath
Published: October 2023

Globally there has been a surge in Physical fitness Centers and as we enter an era of obsession with “Six pack abdomen” never before has the world witnessed such a fascination for Rectus Abdominis muscles as we see today. Diastasis of the rectus (DR) abdomen or divarication of recti muscle abdomen is the midline bulge caused by attenuation of the Linea alba. This attenuation of Diastasis recti (DR), is gradual and is characterized by thinning and widening of the Linea alba [1]. Diastasis recti (DR) is devoid of a true fascial defect, which is what differentiates it from a ventral hernia. Traditionally it has been associated with pregnancy. With the global epidemic of Obesity and the rise of Bariatric Surgery worldwise there is a surge in the prevalence of Diastasis Recti (DR). Perhaps its time to revisit & Analyze the factors associated with this obsession of Diastasis recti (DR).
Incidence and Types of Arrhythmias in Acute Coronary Syndrome: An Observational Study
Authors: Mani Siddhartha , Sen Sujata , Nag Kaushik , Biswas Sobhan
Published: October 2023

their diagnosis is not considered in contemporary acute coronary syndrome patients. This study investigates the incidence and types of arrhythsmias among acute coronary syndrome patients presenting to the emergency department, as well as their association with various factors and patient outcomes. Methods: The current prospective observational study was conducted at a tertiary care center in Kolkata, India. Data were collected from 76 acute coronary syndrome patients admitted between October 2020 and May 2021 to the emergency department. Information was gathered through semi-structured interviews and relevant investigations. Results: The majority of the patients were aged 61-70 years, with three fourth of the study population being male. The incidence of arrhythmia was diagnosed in 77.6% of the patients. The most common arrhythmias were sinus tachycardia, ventricular premature complex, atrial fibrillation, sinus bradycardia, and complete heart block. Arrhythmias were more prevalent among ST-elevation myocardial infarction (62.7%) and unstable angina (8.5%) patients. Patients with Left Ventricular Ejection Fraction ≤ 40% had a higher incidence of arrhythmias (93.5%). The mortality rate during hospital stay was 11.9% among acute coronary syndrome patients with arrhythmias, while all acute coronary syndrome patients without arrhythmia had a 100% survival rate. Conclusion: This study highlights the incidence and types of arrhythmias in acute coronary syndrome patients presenting to the emergency department. It reveals a higher prevalence of arrhythmias in specific subgroups, such as patients with ST-elevation myocardial infarction and those with a reduction in left ventricular function. These findings contribute to our understanding of arrhythmias in acute coronary syndrome and their association with patient outcomes, emphasizing the importance of appropriate management and monitoring in this population.
A A Spiking Model of Cell Assemblies: Short Term and Associative Memory
Authors: Huyck Christian
Published: October 2023

Cell Assemblies are the neural basis of both long and short term memories. Cell Assemblies, whose neurons persistently fire, are active short term memories while the neurons are firing, and the memory ceases to be active when the neurons stop firing. This paper provides simulations of excitatory spiking neurons with small world topologies that persist for several hundred milliseconds. Extending this model to include short term depression allows the Cell Assemblies to persist for several seconds, a reasonable psychological duration. These Cell Assemblies are combined in a simple associative memory so that when three Cell Assemblies are associated, ignition of two causes the third to ignite, while pairs of un-associated Cell Assemblies do not lead to the ignition of other Cell Assemblies. This mechanism has a larger capacity than a Hopfield net. The simulations provide a simple neurally based simulation model of short term and associative memory. A discussion of the current psychological theories, other mechanisms for short term memory, the strengths and weaknesses of the paper's simulated models, and proposed challenges are also provided.