bluuebunny/crossref_metadata_2025 huggingface dataset:
Review Sistem Drainase Parak Jambu Dadok Tunggul Hitam Padang Menggunakan Model EPA-SWMM
Authors: Mera Mas , Februarman Februarman , Aryadwitama Priadi Fandi
Published: January 2025

Flood disasters have been a never-ending problem for humans all over the world from the past to the present. This disaster can be caused by natural events or as a result of human activities and even by both simultaneously. One of the areas that often experiences flooding is the Parak Jambu Area, Dadok Tunggul Hitam Village in Padang City. This research objective is to overcome flooding that occurs in the area by means of numerical simulation using the EPA SWMM v.5.2 model. The existing conditions consist of 6 subcatchments in the Parak Jambu Area plus 28 supporting subcatchments located outside the area. All of them consist of 281 conduits (canals). The results of the simulation of existing conditions show that 32 canals are flooded and 6 canals do not carry any water at all. In dealing with the flooding that occurred, two approaches are taken, namely modifying the dimensions of the existing channels and adding new channels to the edge of the existing catchment. The simulation results of modified conditions show that there are no more canals that experience flooding in the Parak Jambu Area, and canals that previously did not carry water, now carry water.
Strategi Manajemen Lalu Lintas Di Kawasan Pantai Gandoriah Pariaman
Authors: Busnia Adib Isra Mudrah , Purnawan Purnawan
Published: January 2025

The attraction of tourism in Pariaman City is very high for both local and foreign tourists. One of the famous tourism areas in Pariaman City is Gandoriah Beach. Based on data obtained from BPS Pariaman City, the number of tourists visiting in 2020 was 112,278 people. In 2021 the number of tourists increased to 255,561 people. The increase in tourist visits can cause an increase in traffic volume, which can cause congestion, discomfort, and can endanger safety. Therefore, it is necessary to identify what traffic problems occur in the Gandoriah Pariaman Beach tourist area and find the right traffic management solution for the existing problems. The methodology of this study is to analyze traffic performance in the Gandoriah Beach area with indicators of V/C ratio, speed, density, and road service level. The analysis was carried out by analyzing data obtained in the field and grouping existing problems and solving traffic problems appropriately based on existing guidelines. Furthermore, an analysis was also carried out on the capacity of the available parking lot and on-street parking and an analysis of pedestrian facilities. From the analysis results, it can be concluded that the best handling in the Gandoriah Beach area for the problem of road network performance, the right handling is to regulate street vendors, provide no-stop signs, and provide sidewalk barriers. To handle parking problems, namely arranging parking by moving on-street parking and limiting parking hours. While handling the problem of pedestrian facilities is to rebuild and widen the sidewalk and provide decent crossing facilities for pedestrians.
Pengaruh Lebar Lajur Lalu Lintas Terhadap Kecepatan Kendaraan Pada Jalan Perkotaan
Authors: Kurniati Titi
Published: January 2025

The design of the road lane width plays an important role in controlling vehicle speed. Controlled vehicle speed will have an impact on traffic safety. The purpose of this study was to determine the effect of traffic lane width on average operating speed. Traffic lane width and vehicle speed on urban road sections were analyzed using 2019 data collected through recording using a video camera. A total of 12,273 instantaneous vehicle speed data were collected on four road sections with similar facilities and traffic conditions but different lane widths in the urban area of ​​Padang City. Data on the relationship between speed and lane width are presented descriptively statistically. To test the difference in average operating speed of each traffic lane width, the ANOVA approach was used. Meanwhile, to test the operating speed between two (2) lane widths, a hypothesis test was carried out at a 95% confidence level. The results of the ANOVA test concluded that there was a significant difference in operating speed with different traffic lane widths. Likewise, the results of the hypothesis test conclusion showed that there was a significant difference in average operating speed between lane widths of 3.25m, 3.50m, 3.75m and 4.15m.
Pengaruh Luas Lubang Bukaan Dinding Terhadap Energi Disipasi Portal Beton Bertulang
Authors: Marsa Raihan Jetson , Sunaryati Jati , Tanjung Jafril
Published: January 2025

Dinding bata pada struktur portal sering kali dianggap sebagai komponen non struktural atau bagian dari arsitektur akibatnya, pengaruh kekuatan dan kekakuan dinding bata sering tidak diperhitungkan dalam perencanaan suatu bangunan. Pada kenyataannya, dinding bata memiliki nilai kekuatan dan kekakuan tertentu dalam menahan beban lateral. Pada bangunan beton bertulang, struktur portal tidak hanya diisi oleh dinding bata penuh tetapi juga dinding bata ada bukaan (lubang) yang berfungsi sebagai ruang untuk pemasangan jendela, pintu, ventilasi dan lain-lain. Studi ini bertujuan untuk menganalisis pengaruh luas lubang bukaan terhadap kinerja lateral portal beton bertulang dengan pembebanan siklik. Studi ini dilakukan dengan membandingkan 6 buah model spesimen yaitu struktur portal beton bertulang dengan dinding penuh (F-O-0), struktur portal beton bertulang dengan luas lubang bukaan pada dinding sebesar 15% (F-O-15), 25% (F-O-25), 40% (F-O-40), 55% (F-O-55), dan struktur portal beton bertulang tanpa dinding (F-O-100). Penelitian dilakukan secara numerik menggunakan software ATENA V5.9.0 (Demo Version). Output yang didapatkan dengan bantuan software ATENA yang akan dibandingkan yaitu kurva histerisis beban-perpindahan dan pengaruh luas lubang bukaan pada dinding. Dari hasil analisis yang telah dilakukan dapat disimpulkan bahwa terjadinya penurunan energi disipasi seiring bertambahnya luas lubang bukaan pada dinding pengisi.
Analisis Penggunaan Balok Rafter Honeycomb Untuk Struktur Gudang Tahan Gempa Dengan Metode LRFD
Authors: Guci Jeply Murdiaman , Putri Yastari Febi
Published: January 2025

Perencanaan struktur tahan gempa merupakan aspek penting dalam konstruksi bangunan di wilayah rawan gempa. Penelitian ini bertujuan untuk menganalisis balok rafter honeycomb menggunakan metode Load and Resistance Factor Design (LRFD) pada struktur bangunan gudang tahan gempa. Balok honeycomb dipilih karena kemampuannya untuk mengurangi berat struktur tanpa mengorbankan kekuatan dan kekakuan. Studi ini mencakup analisis pembebanan, perancangan elemen struktur, dan evaluasi kinerja struktur terhadap beban gempa sesuai standar SNI 1726:2019. Hasil penelitian menunjukkan bahwa profil HC 900x200x11x17 memadai sebagai rafter atau kuda-kuda dan struktur gudang menggunakan balok rafter honeycomb dinyatakan cukup kokoh dan aman dalam menghadapi potensi beban gempa.
Pengaruh Variasi Mutu Baja Tulangan Pada Penampang Balok Beton Bertulang
Authors: Riza Aryanti
Published: January 2025

Balok beton bertulang merupakan elemen struktur yang penting dalam konstruksi bangunan yang berfungsi menyalurkan beban dari pelat lantai ke kolom penyangga. Pada saat menerima beban, balok beton bertulang mengalami dua kondisi yaitu kondisi tekan dan tarik. Balok beton bertulang pada dasarnya terbuat dari gabungan beton polos yang mampu menahan gaya tekan dan baja tulangan yang mampu menahan gaya tarik. Jumlah baja tulangan yang dipasang pada balok disesuaikan dengan beban yang bekerja sehingga balok tersebut mampu menahan beban. Disamping jumlah tulangan yang digunakan, mutu baja yang digunakan juga berpengaruh terhadap kapasitas balok tersebut. Penelitian ini bertujuan untuk menganalisis variasi mutu baja tulangan terhadap momen-curvature, daktilitas, concrete stress distribution dan neutral axis depth. Analisis dilakukan dengan menggunakan software RCCSA v4.3. Lebar penampang balok adalah 350 mm dan tinggi penampang balok adalah 700 mm. Mutu beton (fc’) yang digunakan adalah 30 MPa. Variasi mutu baja tulangan (fy) berturut-turut adalah 300 MPa, 350 MPa, 400 MPa, 450 MPa, 500 MPa dan 550 MPa. Balok beton bertulang yang dianalisis adalah balok beton bertulangan tunggal. Hasil penelitian menunjukkan bahwa variasi mutu baja tulangan berpengaruh pada moment-curvature, daktilitas, kedalaman blok tegangan tekan beton dan neutral axis depth tetapi tidak berpengaruh pada nilai tegangan tekan beton maksimum pada blok tegangan tekan beton.
Correlation of Stress Level, Nutrient Intake, and Emotional Eating Behavior with Nutritional Status among High School Students
Authors: Hidayat Annisa Tantyana , Sinaga Tiurma , Nurdiani Reisi
Published: January 2025

The aim of the study was to determine the correlation between stress level, nutrient intake and eating behavior with nutritional status among 92 high school students aged 16 to 18 years from the Public High School (SMAN) 1 Kalianda. The Educational Stress Scale for Adolescents (ESSA), Dutch Eating Behavior Questionnaire (DEBQ), and anthropometric measurements were used for data collection. The results showed that the most likely factor to trigger stress was related to the study workload. About 44.6% of the subjects were found to be an emotional eaters. There was significant correlation of stress level, energy, protein, and carbohydrate intake with nutritional status (p<0.05). Based on the result, stress was an important factor that can influence the nutritional status
Nutrition Training for Madrasah Ibtidaiyah Teachers in Semarang Regency
Authors: Widajanti Laksmi , Qothrunnada Alisa , Hidayah Aisyah Nurul
Published: January 2025

The purpose of this study was to analyze the knowledge of Madrasah Ibtidaiyah (MI) teachers in Semarang Regency about nutrition. This study used a quasi-experimental design. Seventeen teachers were provided with training covering four modules in four hours. The data obtained were analyzed using ANOVA. It showed that the understanding of 94% of the teachers about nutrition had a score higher than 60. There was a slight increase in the knowledge of nutrition among the teachers but it was not statistically significant (F=2.395; p=0.173). It is concluded that training on nutrition for MI teachers in Semarang Regency slightly increased their knowledge on nutrition.
Nutrition Adequacy Level and Stunting in Children Aged 48‒59 Months in the Coastal Area of Kendari City, Indonesia
Authors: Jufri Nurnashriana , Marliyati Sri Anna , Anwar Faisal , Ekayanti Ikeu
Published: January 2025

This study aims to explore the relationship between nutritional adequacy and height-for-age z-scores (HAZ) in toddlers in Kendari City's coastal region. This cross-sectional analysis involved 96 children aged 48‒59 months. Height measurements was converted to HAZ, while a 24-hour dietary recall was conducted to assess nutritional intake. Data were analyzed using Pearson product moment test and multiple linear regressions. The study revealed a significant HAZ correlation with calcium, iron, and copper adequacy levels (p<0.05). Notably, in Kendari City's coastal area, stunting is found in toddlers aged 48‒59 months due to nutritional inadequacy.
Burkholderia cepacia complex nosocomial outbreaks in India: A scoping review
Authors: Saran Ankita , Agarwal Amit , Mali Swapna Anandrao , Singhal Lipika , Patil Prabhu B. , Gautam Vikas
Published: January 2025

Burkholderia cepacia complex (Bcc) is an opportunistic pathogen that causes severe infections in immunocompromised individuals. It is a common contaminant of medical drugs, solutions and devices used in healthcare setups. This scoping review aimed to assess Bcc outbreaks in Indian hospital settings and address a wide range of sources to improve outbreak management. As per PRISMA-ScR guidelines, electronic databases ‘Embase’, ‘PubMed’ and ‘Web of Science’ were searched from 1993 to September 2024 to identify studies reporting Burkholderia cepacia complex outbreaks across India. The search identified 22 outbreak reports meeting the inclusion criteria. Bacteremia was the most common presentation in twenty studies, followed by acute-onset post-operative endophthalmitis in two studies. In 14 outbreak studies, B. cepacia was the identified species, whereas five studies had Bcc; one study each had B. cenocepacia, B. multivorans and B. contaminans isolated. Most outbreaks were associated with contaminated pharmaceuticals (45.4%) and medical (18.1%) products in contrast to the environment as a source (13.6%). Multi-locus sequence typing (MLST) was employed to study clonality among isolates in six outbreaks. This review highlights that varied medical products and environmental surfaces/objects can harbour Bcc and act as potential sources of Bcc outbreaks in hospitals. Ensuring immediate identification of Bcc from clinical samples, regular sterility checks, thorough epidemiological investigations, and timely infection control and prevention measures are critical to help manage and prevent these outbreaks and the subsequent mortality.
Post phacoemulsification shine: Iatrogenic foreign body deposition
Authors: Luthra Abhijay , Rehman Obaidur
Published: January 2025

A 55-year-old woman, with a history of phacoemulsification and intraocular lens (IOL) implantation in both eyes, presented for a routine check-up. Slit-lamp examination of the left eye revealed a patch of silver-colored deposits with a metallic sheen at the 2 o’ clock iris position, absent on the conjunctiva or cornea, differentiating this from typical ocular argyrosis. The likely diagnosis was residual phacoemulsification tip deposits consolidated on the iris, an unusual post-surgical manifestation.
Совершенствование приемов разработки техники для семеноводства гибридов сахарной свеклы
Authors: Бартенев И.И. , Гаврин Д.С. , Лысыч М.Н. , Нагайцев В.М. , Воскобойник М.Ю.
Published: January 2025

Решение стратегической задачи по обеспечению страны свекловичным сахаром зависит не только от развития отечественной селекции сахарной свеклы, но и от внедрения в производство современных интенсивных приемов семеноводства с использованием специализированной техники. Проведенный в семеноводстве сахарной свеклы анализ показал отсутствие обеспечения агротехнических приемов выращивания семян отечественными средствами механизации. В рамках нашего проекта представлена программа разработки комплекса машин и оборудования, способного решить проблемы механизации процессов выращивания семян сахарной свеклы в условиях импортозамещения. Приводятся данные о методах проектирования средств механизации с использованием 3D-САПР на примере полуавтоматической высадкопосадочной машины. Результаты ее полевых испытаний подтвердили работоспособность конструкции и приемлемые качественные показатели процесса посадки.

The solution of strategic task of providing the country with beet sugar depends not only on the development of domestic sugar beet breeding, but also on the introduction of modern intensive seed production techniques using specialized equipment. The analysis carried out in seed production of sugar beet showed the lack of provision of agrotechnical methods of growing seeds with domestic means of mechanization. As part of our project, we present a program for the development of a set of machines and equipment capable to solve problems of mechanization of growing sugar beet seeds in the conditions of import substitution. Data on the methods of designing mechanization tools using 3D CAD are presented on the example of a semi-automatic landing machine. The results of its field tests are presented, confirming the performance of the structure and acceptable quality indicators of the planting process.
Predicting Psychological Wellbeing of Iranian Students Based on Attachment Styles and Internet Addiction in the Post-Corona Era
Authors: Qanadan Farzane , Jafarzadeh Mohammad Rahim
Published: January 2025

The purpose of this research was to predict Iranian students' psychological well-being based on attachment styles and Internet addiction. The research design was descriptive and correlational. The current research population included 22131 fourth and fifth-grade students of Dezful City in the academic year–2022-2023. The statistical sample was based on the cluster sampling table of Karjesi and Morgan (1970), resulting in 384 participants. They were administered the Riff psychological well-being questionnaire (short form), the Collins and Reed Adult Attachment Style Questionnaire (RAAS), and the Addiction to Internet Young test. The results showed that there is a direct and significant relationship between psychological well-being and secure attachment, and there is a direct and significant relationship with the variables of avoidant attachment and anxious attachment. Also, the results of the regression test showed that secure attachment, avoidant attachment, and anxious attachment significantly predicted psychological well-being. There is an indirect and significant relationship between Internet addiction and psychological wellbeing. Internet addiction significantly predicts the psychological well-being variable.
Review on the DFT Computation of Bulk Heterojunction and Dye-sensitized Organic Solar Cells Properties
Authors: Rosa Nathalia , Borges Jr Itamar
Published: January 2025

Organic solar cells (OSCs) represent a promising renewable energy technology due to their flexibility, low production cost, and environmental sustainability. To advance OSC efficiency and stability, Density Functional Theory (DFT) has emerged as a powerful computational tool, enabling the prediction and optimization of critical properties at the molecular and device levels. This review highlights the key properties of bulk heterojunction solar (BHJ) solar cells and dye-sensitized solar cells (DSSCs) that can be accurately computed using DFT, including electronic structure properties (HOMO-LUMO energy levels, bandgap energies, and exciton binding energies, which influence charge separation and transport); optical properties (absorption spectra and light-harvesting efficiency, essential for maximizing photon capture); charge transport properties (reorganization energies, electron, and hole mobilities, and charge transfer rates that govern carrier dynamics within devices); interfacial properties (energy alignment at donor-acceptor interfaces, contributing to efficient charge separation and minimizing recombination) and chemical reactivity descriptors (ionization potential, electron affinity, chemical hardness, and electrophilicity, which facilitate material screening for OSC applications). We show how to compute the power conversion efficiency (PCE) of OSCs from DFT. The review also discusses the importance of selecting appropriate exchange-correlation functionals and basis sets to ensure the accuracy of DFT predictions. By providing reliable computational insights, DFT accelerates the rational design of OSC materials, guiding experimental efforts and reducing resource demands. This work underscores DFT’s pivotal role in optimizing OSC performance, fostering the development of next-generation photovoltaic technologies.
Non-Aromatic Fluorescence from Single α-Helical Peptides
Authors: González-González Carmen , Lopez-Blanco Roi , González-Vera Juan A. , D’Ingiullo Sara , Bouzada David , Melle-Franco Manuel , Orte Angel , Vazquez M. Eugenio
Published: January 2025

We describe the first systematic analysis of NAF-emitting peptides in solution and show that short peptides derived from zwitterionic single α-helices (SAHs), formed exclusively by non-aromatic lysine and glutamic acid residues, are UV-active and luminescent at near-UV wavelengths in solution (λexc = 320 nm; λem ≈ 420 nm). We also show that their emission depends on the α helical folding, which favors intramolecular through-space interactions between the Lys/Glu side chains and that conservative mutations, such as the replacement of Lys by Orn or Arg, strongly influence the NAF emission.
Fast photo-deactivation of chloride transport and cytotoxicity mediated by squaramides
Authors: Galmés Bartomeu , Vega Manel , Amine Fatima , Costa Atonio , Rotger Carmen , Martínez-Crespo Luis
Published: January 2025

The ability to control anion transporters with precision is crucial to maximise their therapeutic potential while mitigating collateral damage to healthy cells. Consequently, there is a growing interest in light-regulated anion transporters, which offer the advantage of spatio-temporal control over their activity. We have previously reported that the chloride transport activity of an electron-poor squaramide can be inhibited by UV irradiation (365 nm), probably due to the photo-transformation of the transporter. Herein we present a series of diaryl squaramides containing different electron-withdrawing substituents. Using liposome-based assays, all compounds, with similar chloride affinities, have shown to be active chloride transporters at a relatively low concentration (1:10k transporter-lipid ratio). We have studied the efficiency of the light-induced deactivation process, observing how the nature of the electron-withdrawing groups on the aryl rings has a strong effect on the time of irradiation required to completely inhibit the transport activity of the compounds. Remarkably, efficient deactivations have been observed with cyano-substituted squaramides, which have showed complete loss of activity after only 1-2 s of irradiation. Finally, we have performed cell viability studies that show how the cytotoxicity of squaramides can be reduced by irradiation, which can be attributed to the deactivation of an anion transport process in the cell membrane.
Comparative analysis of Im7 dynamics with polarizable and non-polarizable CHARMM family of force fields
Authors: Prusty Sangram , Bruschweiler Rafael , Cui Qiang
Published: January 2025

Electrostatic interactions are fundamental to biomolecular structure, stability, and function. While these interactions are traditionally modeled using fixed-charge force fields, such approaches are not transferable among different molecular environments. Polarizable force fields, such as DRUDE, address this limitation by explicitly incorporating polarization effect. However, their performance does not uniformly surpass that of nonpolarizable force fields, since multiple factors such as bonded terms, dihedral correction maps, and solvent screening also modulate biomolecular dynamics. In this work, we study the Im7 protein to evaluate the structural and dynamic behaviors of non-polarizable (CHARMM36m) and polarizable (DRUDE2019) force fields relative to NMR experiments. Our simulations show that DRUDE better stabilizes α-helices than CHARMM36m, including shorter ones that contain helix-breaking residues. However, both force fields underestimate loop dynamics, particularly in the loop I region, due mainly to restricted dihedral angle sampling. Moreover, salt bridge population and dynamics reveal that DRUDE and CHARMM36m preferentially stabilize different salt-bridges. This variability arises from the interplay of ionic interactions, charge screening by the environment, and the flexibility of neighboring residues. Additionally, the latest DRUDE2019 variant, featuring updated NBFIX and NBTHOLE parameters for ion-protein interactions, demonstrated improved accuracy in modeling Na+-protein interactions. These findings highlight the need to balance bonded and non-bonded interactions along with dihedral correction maps while incorporating polarization effects to improve the accuracy of force fields to model protein structure and dynamics.
Substrate- and Reagent-Controlled Dimerization of Vinyl para-Quinone Methides
Authors: Porco John , Baker Ryan , Reichl Kyle , Smith Michael , Ricca Michael , Mickelberg Margaret Ann
Published: January 2025

Substrate and reagent-controlled dimerization of vinyl para-quinone methides (VPQMs) is reported. When subjected to Brønsted acidic conditions, VPQM dimerization occurs via a formal 1,8-addition to provide griffipavixanthone (GPX)-type congeners. Under optimized Lewis acidic conditions, a change in regioselectivity affords, limonene-containing dimers by a 1,6-addition/cyclization process. This divergent reactivity has been explored on several substrates of differing complexity, providing access to analogues of the natural product griffipavixanthone (GPX) as well as a range of novel, substituted limonene dimers.
Unveiling the Formation Pathway of Vaterite from Amorphous Calcium Carbonate Using Metadynamics Simulations
Authors: Saito Takumi , Maruyama Ippei , Suda Yuya , Teramoto Atsushi , Kitagaki Ryoma , Ohkubo Takahiro
Published: January 2025

Calcium carbonate is a compound that is widely distributed throughout the Earth as a natural mineral and a material produced by biological activities. The crystal structure of calcium carbonate has three polymorphs: the most thermodynamically stable calcite, followed by aragonite, vaterite, and amorphous \ce{CaCO3} (ACC). Of the three crystalline phases, the most unstable vaterite remains mysterious regarding its formation process and structure. In this study, the pathway of forming the vaterite crystal structure from ACC was reproduced using well-tempered metadynamics molecular dynamics simulations. The structures sampled at multiple minima on the energy landscape were refined through first-principles calculations based on density functional theory. The sampled structures were assigned space groups (SGs) and classified as calcite- and vaterite-like structures according to the arrangement of \ce{CO3^{2-}} and \ce{Ca^{2+}} sheets. The initial crystal structure produced from ACC was a monoclinic crystal with \ce{Ca^{2+}} sheets and \ce{CO3^{2-}} lying in the interlayer; however, it did not exhibit the three-fold symmetry of calcite. Calcite structures with three-fold symmetry, or orthorhombic crystals with rotated \ce{CO3^{2-}} units as found in vaterite, could be derived from this structure. The orthorhombic structure then transitioned to the more stable monoclinic form, which is likely vaterite. The understanding of phase transitions based on the diverse crystal structures of calcium carbonate revealed in this study provides a predictive view of biomineralization and carbonation reactions of cementitious materials.
Electron Holography Characterization of Epitaxial Si(P+)/Si(B-) Substrate Structures
Authors: Sahu Protyush , Wang Yun-yu , Sunder Madhana , Borsari Silvia
Published: January 2025

Epitaxial growth of n-type Silicon is one of the key pathways to enable semiconductor device scaling. Such epitaxial growth requires a crystalline Si atomic template. The interface between Si(P+)/Si(B-) substrate is not very well understood, particularly the stability and effect of the carriers at these interfaces. Si:P epitaxial thin films were grown on top of Si:B- substrate using single-wafer chemical vapor deposition (CVD) technique, with different dopant concentration. Basic interfacial characterization was done using high resolution X-Ray diffraction (HRXRD), dynamic secondary ion mass spectroscopy (D-SIMS) and strain measurements. The characterization showed presence of substitutional doping resulting in tensile lattice strain of the epitaxial Si:P film. Electron holography measurements were used to characterize the overall interfacial charge, indicating the presence of static and dynamic built-in voltage across the stack. We analyze the phase shift closely to understand the contribution of built-in voltage and mean inner potential (MIP) and their respective dependence on Phosphorus doping.
Homochiral versus Racemic 2D Covalent Organic Frameworks
Authors: Monroy José del Refugio , Schlecht Joel , Douglas Clara , Stirling Robbie , Smales Glen , Kochovski Zdravko , Dumele Oliver
Published: January 2025

The synthesis of homochiral two-dimensional Covalent Organic Frameworks (2D COFs) from chiral pi-conjugated building blocks is challenging, as chiral units often lead to misaligned stacking interactions. In this work, we introduce helical chirality into 2D COFs using configurationally stable enantiopure and racemic [5]helicenes as linkers in the backbone of 2D [5]HeliCOFs. Through condensation with 1,3,5-triformylbenzene (TFB) or 1,3,5-triformylphloroglucinol (TFP), our approach enables the efficient formation of a set of homochiral and racemic 2D [5]HeliCOFs. The resulting carbon-based crystalline and porous frameworks exhibit distinct structural features and different properties between homochiral and their racemic counterparts. Propagation of helical chirality into the backbone of the crystalline frameworks leads to the observation of extended chiroptical properties in the far-red visible spectrum, along with a less compact structure compared to the racemic frameworks. The present study offers insight into general chiral framework formation and extends the Liebisch–Wallach rule to 2D COFs.
Izby przemysłowo-handlowe w Niemczech Wschodnich w latach 1945–1953
Authors: Dąbrowski Karol
Published: January 2025

Przedmiot badań: Przedmiotem badań jest sytuacja i działalność izb przemysłowo-handlowych w radzieckiej strefie okupacyjnej w Niemczech oraz Niemieckiej Republice Demokratycznej w okresie stalinizmu.
Cel badawczy: Celem badawczym jest pozyskanie nowej wiedzy na temat sytuacji i zakresu działań instytucji otoczenia biznesu w państwach socjalistycznych Europy Środkowo-Wschodniej w okresie po II wojnie światowej. Wyniki analizy ułatwią w przyszłości prowadzenie badań porównawczych i syntetycznych.
Metoda badawcza: W artykule zastosowano metodę analizy źródeł pierwotnych i wtórnych. Źródłami pierwotnymi są źródła normatywne i archiwalne, zgromadzone w szczególności w Archiwum Państwowym w Lipsku, które do tej pory nie były wykorzystywane w obiegu naukowym, a zachowały się w dużym stopniu kompletności i dobrym stanie fizycznym. Źródłami wtórnymi są publikacje naukowe i popularnonaukowe. Dokonano więc egzemplifikacji badań, dokonując analizy sytuacji i działalności izb przemysłowo-handlowych landu Saksonia, a potem trzech okręgów Niemieckiej Republiki Demokratycznej, tj.: Chemnitz (Karl-Marx-Stadt), Drezno i Lipsk. Wybrano lata 1945–1953, tj. czas stalinizmu, jako istotne dla adaptacji sowieckiego wzorca instytucji otoczenia biznesu w państwach Europy Środkowej i Wschodniej zależnych politycznie od Związku Sowieckiego. Tym bardziej zatem omówiono, celem wprowadzenia czytelnika w tematykę, przemiany polityczne Niemiec Wschodnich po – literacko rzecz ujmując – Stunde Null.
Wyniki: Materiały izb przemysłowo-handlowych z terenów Saksonii z lat 1945–1953 obrazują sposób funkcjonowania instytucji otoczenia biznesu w europejskim państwie totalitarnym modelu sowieckiego, tj. demokracji ludowej, po II wojnie światowej w Europie Środkowo-Wschodniej. W przypadku wschodnio-niemieckich izb przemysłowo-handlowych recypowano sowiecki wzorzec izb handlowych (Торгово-промышленная палата СССР) i wykazywały one podobieństwo do instytucji otoczenia biznesu, które komuniści utrzymali w Czechosłowacji i Polsce.
Redescription and distribution of Acrida indica Dirsh, 1954 (Orthoptera: Acrididae)
Authors: Kumar Hirdesh , Usmani Mohd. Kamil , Chand D. Suresh
Published: January 2025

Genitalia of Acrida indica is still undescribed. Therefore, an opportunity is taken to redescribe this species along with its genitalia. Its distribution in India is also compiled and shown on the map.
Description of two new species of Parzaommomyia Girault (Hymenoptera: Chalcidoidea: Eulopohidae) from India
Authors: Parveen Neha , Zeya Shahid Bin
Published: January 2025

Two new species of the genus Parzaommomyia Girault, P. haziqi Parveen and Zeya, sp. nov. and P. halavarthyensis Parveen and Zeya, sp. nov. are described from India. An identification key to Indian species is also given.
New record of moths (Lepidoptera) from India
Authors: Ahmad Jalil , Shah Suresh Kr. , Mishra Purnendu , Joshi Rahul , Singh Navneet
Published: January 2025

In the present manuscript, we report 13 species in six families of moths (Lepidoptera), i.e., Adrapsa ablualis Walker, 1859 (Noctuidae); Corgatha tornalis Wileman, 1915; Eugoa brunnea Hampson, 1914; Fossia melandra (Černý, 2009); Miltochrista roseogrisea (Rothschild, 1913); Spilosoma howqua Moore, 1877; Oreta loochooana Swinhoe, 1902; Oruza crocodeta (Turner, 1903) (Erebidae); Pingasa chloroides Galsworthy, 1998; Spaniocentra kuniyukii Yazaki, 1994; Syllepta maculalis Leech, 1889 (Crambidae); Theretra rhesus (Boisduval, 1875) (Sphingidae); Xenochroa fulvescens (Warren, 1912) (Nolidae) for the first time from India. All the 13 species are collected from Valmiki Tiger Reserve, Bihar.
First record of Apatania aison Malicky, 1997 (Insecta: Trichoptera) from India
Authors: Pandher Manpreet Singh
Published: January 2025

In this paper, Apatania aison Malick, 1997 is reported for the first time from India (from West Bengal). Earlier this species was only reported and described from Nepal. These species belong to the A. fimbriata group of the genus Apatania of Family Apataniidae. With this addition, the genus is now represented by eight species from India.
New distributional records of fungus feeder Thrips (Thysanoptera) from Odisha, India
Authors: Patidar Abhishek , Pal Shash , Singha Devkant , Kumar Vikas , Tyagi Kaomud
Published: January 2025

Thrips belong to the order Thysanoptera and are known for their diverse feeding habitats from leaf feeders to fungal spore feeders. Till now, Odisha state was poorly surveyed and known by 35 species of order Thysanoptera including two species of subfamily Idolothripinae. Further, to explore the thrips diversity especially the members of the Idolothripinae, multiple field surveys were conducted from 2019 to 2022 in Odisha state of India, and collected 7 species of the subfamily Idolothripinae for the first time. These 7 species of thrips are Dinothrips spinosus (Schmutz), Gastrothrips acuticornis (Hood), Gastrothrips falcatus (Ananthakrishnan), Loyolaia indica Ananthakrishnan, Nesothrips brevicollis (Bagnall), Nesothrips lativentris (Karny) and Nesothrips minor (Bagnall). Species diagnosis, material studied, distribution, and illustrations of these new taxa are also provided.
An updated list of family Scarabaeidae (Coleoptera: Scarabaeoidea) along with new faunistic records from Mizoram, India
Authors: Ghosh Joyjit , Bhunia Debika , Sarkar Subhankar Kumar , Ghosh Priyanka , Gupta Devanshu
Published: January 2025

Altogether, 56 species belonging to 25 genera and 5 subfamilies of the family Scarabaeidae are reported from the state of Mizoram in this paper based on collected materials and historical records. Maladera hmong Ahrens, 2004 previously known from Nepal, Vietnam, and Thailand reported for the first time from India. This study revealed the present status, distribution, and diversity of scarab beetles in Mizoram that will help in the better conservation of scarab beetle diversity in future. This baseline information will help to strengthen the conservation and management strategies which in turn will help to conserve the forests, vegetation, and wildlife of Mizoram state.
Ant (Family: Formicidae) Diversity in Two Urban Landscapes of Kolkata
Authors: Das Priyanka , Chatterjee Arijit , Saroj Sheela
Published: January 2025

Ants are one of the most diverse and abundant organisms of terrestrial ecosystem. This study was carried out between September 2020 to August 2021 in two urban localities of Kolkata i.e., Subhas Sarovar (SS) and Salt-Lake (SL). This study aims to understand how diversity and distribution of ant species vary in different habitat types in an urban set up. Ants were collected along a transect followed by hand picking throughout the year. During the study, a total of 45 ant species under 6-subfamilies were collected which is approximately 11.7% ant diversity of West Bengal; subfamily Myrmicinae contains maximum species. SS consists 36 ant species while SL having 33 species. SS is more species rich and diverse and species dominance is less in this area than SL. SS, having a huge water body and diverse vegetation including plenty of trees, is well maintained in comparison to SL where dominance is more and diversity is less. Dominance of Camponotus compressus, presence of Tapinoma melanocephalum, Paratrechina longicornis indicate human interference and disturbance. This study emphasises the capacity of ants to adapt themselves and flourish in disturbed habitats especially urban areas. Rapid urbanization and climate change put enormous challenge on the ecosystem’s functioning and human wellbeing. This kind of diversity studies help making strategies for maintaining balance between human needs and ecological stability in urban areas.
A New Fish Species of the Genus Garra (Teleostei: Cyprinidae) from the Chalou River, Manipur, India
Authors: Abonmai Thonbamliu , Irengbam Linthoingambi , Ngangbam Catherine , Thoidingjam Kalpana , Rajmani Singh Kh.
Published: January 2025

A new species of the genus Garra is described from the Chalou River in Manipur, northeastern India. The new species, Garra chingaiensis, belongs to the “proboscis with a transverse lobe species group”. It further belongs to the unilobed proboscis group and can be distinguished from its congeners in having a combination of the following characters: a prominent 3-4 unicuspid tubercles on the unilobed proboscis, a transverse lobe with an irregular 11-13 unicuspid tubercles, lateral surface of the snout with 2-3 minute tubercles; a narrow black 5 stripes, laterally more distinct towards caudal peduncle, 3 stripes below the lateral line and 2 stripes above lateral line; black stripes in the middle of caudal fin; chest and belly scaled; 12 circumpeduncular scales; 34-35 lateral scales; 8 ½ branched dorsal fin rays; and 5 ½ branched anal fin rays.
New Record of Sponge from Narara Reef, Gulf of Kutch
Authors: Sivaleela G. , Devakumar S. , Kelly Michelle
Published: January 2025

We report one species of sponge i.e. Haliclona (Reniera) debilis Pulitzer-Finali, 1993 collected from Narara Reef areas of Gulf of Kutch, Gujarat, as a new record to India. The details of the morphometric analysis along with previous distributional details are depicted here. This study also confirms the report of Haliclona (?Reniera) cf. cinerea (Grant, 1826) sensu Dendy (1916) from the aforementioned study area.
First record of Tabanus dorsiger Wiedemann, 1821 (Insecta: Diptera: Tabanidae) from Andaman and Nicobar Islands, India
Authors: Mukherjee Koustav , Naskar Atanu , Banerjee Dhriti
Published: January 2025

The fly Tabanus dorsiger Wiedemann, 1821 belongs to the family Tabanidae, under the infraorder Tabanomorpha and order Diptera, and act as a mechanical vector of various diseases (Maity et al., 2019). While sucking blood from hosts, they transfer numerous pathogens causing vesicular stomatitis, bovine leukosis, anaemia, swine fever, and various species of trypanosomes (Foil, 1989; Krinsky, 1976). “Surra disease” or trypanosomiasis, caused by Trypanosoma evansi (Steel) is one of the most important diseases affecting the health and survival of a number of domestic and wild animals worldwide (Veer et al., 2002). The disease has been categorized under list B diseases by the Office International des Epizooties (OIE, 2014). Tabanus dorsiger has been suspected as a vector of Surra disease from the Indian states of Punjab, Haryana, Rajasthan, and Himachal Pradesh. Maity et al., 2019 recorded this species from Assam, Bihar, Maharashtra, Odisha, and West Bengal. However, the studies are relatively restricted, and comprehensive surveys and collections are required to determine the presence and abundance of the species in other states. As per best of our knowledge, this species has not been recorded from the Island ecosystem of the Andaman & Nicobars. During a survey in 2022 by the Diptera section in the Andaman and Nicobar Islands, 7 male and 16 female specimens of this species were documented and collected. The first report of this species from this island ecosystem is alarming for the livestock. A detailed study is essential to know the distribution pattern and seasonal abundance of Tabanus dorsiger which has been first time recorded from the Andaman and Nicobar Islands, India.
Preliminary observation on the polymorphic forms in three species of the Genus Lepidocephalichthys Bleeker, 1863 of Northeast India
Authors: Velentina Kangjam , Lokeshwor Yumnam
Published: January 2025

The spined loaches under the genus Lepidocephalichthys Bleeker, 1863 under family Cobitidae are colourful freshwater fishes with both ornamental and food values and are characterized by the presence of a sub-orbital spine and pectoral rod formed by the fused last two pectoral-fin rays in males. Out of the 9 valid species of Lepidocephalichthys in the Northeateastern India, three species viz. L. berdmorei, L. guntea, and L. irrorata show great polymorphic features in terms of body morphology, meristic data and colour. In view of this, the current preliminary study has been taken up to contribute in solving the existing taxonomic ambiguities by documenting the various polymorphic forms observed in Lepidocephalichthys of the Northeastern India. Multiple comparisons through morphometry, meristic, anatomy and osteology of the specimens collected from different river systems from different parts of the Northeast India has been employed. The present study is based on the observation of 127 specimens of Lepidocephalichthys collected from various region of the Northeastern India and it has revealed the presence of polymorphism in three species viz. Lepidocephalichthys berdmorei, L. guntea and L. irrorata. Lepidocephalichthys berdmorei has been registered with 6 polymorphs, L. guntea with 5 and L. irrorata with 2. Further understanding on their molecular characterization is suggested to confirm the taxonomic status of these polymorphs.
Revalidation of Schizothorax chivae Arunkumar & Moyon, 2016 from the Chindwin River basin, Northeastern India
Authors: A. Nilibo , Lokeshwor Yumnam , Chinglemba Yengkhom , Rameshwori Yumnam , Ibungo Singh Ningombam
Published: January 2025

Schizothorax chivae Arunkumar & Moyon, a cold-water cyprinid fish under family Cyprinidae, from Chiva River (Chindwin basin), Manipur, needs taxonomic validation as the authors did not registered in the research paper in Zoobank, a mandatory for online publication of journal as per ICZN electronic publication amendment (ICZN 2012: 1–7) in addition to articles 8.1.1–8.1.3 of ICZN (1999). The study on its type species from the museum specimens, the type species were found un-catalogued though mentioned in the research paper and there have been a lot of ambiguities in terms of its meristic and morphometric features. With fresh collection of specimens and the re-examination of type species, Schizothorax chivae” is redescribed here. The redescription is based on its morphological, meristic, and some of the osteological features. A drastic difference in morphometric and meristic data of the type species comparing to data from its original publication have been observed. Erratic representation of data creates more puzzle at the time of identification. Thus proper taxonomic procedure should be maintained at the time of identification and description of a species.
Morpho-Taxonomy and Seasonal Prevalence of Culicoides Latreille, 1809 (Diptera: Ceratopogonidae) in Sonamukhi Protected Forest, Bankura, West Bengal
Authors: Mukhopadhyay Emon , Dutta Supradipta , Das Moubanti , Saha Suman Kumar , Mondal Sudip , Banerjee Dhriti
Published: January 2025

Culicoides (Diptera: Ceratopogonidae), popularly known as ‘biting midges’ play a significant role in transmission of pathogens to vertebrate animals- particularly livestock animals, humans, and birds causing severe diseases like Bluetongue (BT), Epizootic haemorrhagic disease (EHD), African horse sickness (AHS), Equine encephalitis (EE), etc. The present research focuses on morpho-taxonomy, ecological diversity, seasonal prevalence, and species abundance of Culicoides in different cattle farms and pastoral regions of Sonamukhi protected area, Bankura, West Bengal for three seasons (pre-monsoon, monsoon, and post-monsoon) from 2013 to 2015 in sixteen sampling sites. Taxonomic studies show four species under three subgenera - Avaritia: Culicoides actoni, C. imicola; Remmia: C. oxystoma; Hoffmania: C. peregrinus of genus Culicoides for the first time from Sonamukhi area. Ecological analyses show the highest species diversity (H =0.881) and species dominance maximum (D= 0.5179) in the post-monsoon, and species richness-maximum in monsoon (Dmg=0.6). Species relative abundance (pi =0.664), rank abundance curve and seasonal prevalence pattern shows-C. oxystoma as the most dominant species. This study provides a brief idea of the taxonomy, ecology, and seasonal prevalence of Culicoides species in the Sonamukhi Protected area, Bankura. The moderate rainfall and moist weather play an essential role in the development of this vector fly. Despite the area showing extreme weather conditions, the pre- and post-monsoon seasons are the ideal time and the species abundance to reach its highest seasonal peak. This research is a preliminary step which delivers insights into the taxonomy, ecological role, species diversity, seasonal abundance, and factors affecting the growth and survival of Culicoides, for its scientific direction in vector control strategies as well as conservation and management of livestock via proper monitoring and surveillance programs.
Ant Diversity in Forested and Human Disturbed Varying Elevational Habitats of Shendurney Wildlife Sanctuary, Western Ghats, India with Landscape Analysis Using QGIS
Authors: George Merin Elizabeth , Prasad G
Published: January 2025

Shendurney Wildlife Sanctuary is located at Agasthyamalai Hills of Southern Western Ghats, Southern India. Despite being in a biodiversity hotspot, there has been no study of ants from this region to date which makes it difficult to monitor any need for conservation efforts. The present study aims to make a comparison between the Forested and Disturbed Habitats of the Sanctuary. The study was done from March 2021 to February 2022 spanning four seasons. Two Forested and two disturbed habitats were selected in two elevations (500m and 1100 m). Three 20x20 m quadrats were selected in each habitat. The ants were collected using standard protocol. The diversity of the sites was analysed and compared to understand the impact of disturbance on ant assemblages. From all sites, soil samples were collected. The samples were analysed for pH, Organic Carbon, Moisture, and Temperature. It was noticed that forested regions had a better diversity and lesser dominance compared to Disturbed Habitats. In addition, landscape pattern was analysed using QGIS to understand the landscape pattern and disturbance.
Bumble Bee, Bombus haemorrhoidalis Smith, 1852 (Apoidea: Hymenoptera)- A Significant Pollinator and Bio-Indicator Species of the Lower Shiwalik Ranges in the Western Himalayan States of India
Authors: Sharma Shivani , Sharma Gaurav , Josh Namita
Published: January 2025

This study has been carried out to find out the role of the bumble bee, Bombus haemorrhoidalis as a significant pollinator and Bio-indicator speciesin the ecosystems of the lower Shiwalik ranges in the Western Himalayan states of India during 2019-22. The Bombus haemorrhoidalis was the only dominant species of the genus Bombus ranging in the selected study area. This species was recorded as very active and pollinating in the winter period during harsh environmental conditions. The B. haemorrhoidalis has a great role in pollinating the flowers of Solanum melongena, Cajanus cajan, Cucumis sativus, Cucurbita maxima in agricultural fields and Ocimum tenuiflorum, Helianthus annus in cultivated gardens Mesosphaerum suaveolens, Vitex negundo, Eremostachys superba, Justicia adhatoda, Impatiens glandulifera, Tecoma stans, and Lantana camara etc in wild in the study area.