bluuebunny/crossref_metadata_2025 huggingface dataset:
Experimental studies of the influence of a gyroscopic damping system on the aeroelastic characteristics of a large aircraft model with elastic pylon-mounted engines under the wing
Authors: Petrov Y. V. , Semakova M. V. , Medvedeva N. N. , Ugreninov V. G.
Published: January 2025

During production of modern large transport aircraft, engine arrangement mounted on the elastic pylons under the wing is widely used. This arrangement of engines has certain advantages, however, there are also significant dynamic features due to the fact that the partial frequencies of vertical and horizontal (lateral) vibrations of elastic pylon-mounted engines are close to the wing bending and torsional natural frequencies of low modes. It is this frequency spectrum that determines the dynamic response of the aircraft as a whole to external disturbance input, and also significantly affects the dynamic stability of the aircraft. A number of technical solutions have been proposed to damp vibrations of the elastic pylon-mounted engines, including the implementation of the “freed engine” principle. To increase the dissipative parameters of the pylon-mounted engines vibrations, this paper proposes to use special devices – powered gyroscopes, which are the main part of the gyroscopic damping system. Numerous theoretical studies of the possibility of using powered gyroscopes have shown that the stability of a dynamic system can be increased by introducing additional gyroscopic, dissipative and potential forces into it. It is known that a method of direct gyroscopic stabilization is proposed to control aeroelastic oscillations of aircraft structural elements. The article proposes to use powered gyroscopes to damp lightly damped vibrations of pylon-mounted engines of a large aircraft. In order to assess the possibility of practical application of the gyroscopic damping system (GDS), experimental studies were conducted on a dynamically similar flutter model (DSFM) of a large aircraft type An-124 with four pylon-mounted engines under the wing. The studies included two stages: frequency and flutter tests. A gyroscopic device made according to the scheme of a rate gyroscope, which was installed inside the engine nacelle, was used as the GDS. The article presents the results of the experiments to assess the effect of the GDS on the dynamic characteristics of the DPFM. The analysis of the normalized amplitude-frequency characteristics of vertical and horizontal oscillations in the center of mass of the outboard engines shows a significant (by 1.5...5 times) decrease in the peak values of the oscillation amplitudes across the entire frequency range covered. The results of the experimental studies of the effect of the GDS on the flutter characteristics of the aircraft model showed a significant (7...15%) flutter speed enhancement at all levels of aircraft refueling. At the same time, with the gyroscopic damping system powered on, the self-oscillations are sluggish and incoherent, and the flutter modes change from one to another due to the gyroscopic coupling of the longitudinal and lateral motion.
A full-scale simulator for research of navigation and filtering algorithms of a strapdown inertial navigation system using the Matlab-Simulink environment
Authors: Sanko A. A. , Vetoshkin V. A. , Ivanovskaya E. L.
Published: January 2025

Due to the increasing complexity of aircraft navigation equipment and the growing demands placed on them, there is a need to study and improve existing navigation and filtering algorithms by solving problems of developing full-scale research simulators. The article presents the results of work in the field of creating a full-scale simulator for research of navigation and filtering algorithms for a strapdown inertial navigation system (SINS) comprising: primary navigation data sensors made using microelectromechanical system technology (MEMS), servos and a navigation platform with two-degrees-of-freedom in roll and pitch. The article presents the features of the design, hardware and algorithmic implementation of the test rig taking into account the prospects for its development in terms of using the number of degrees of freedom of the platform (pitch, roll and yaw channels). The implemented principle of integrating the Simulink model of the control object is described. The control object consists of a controller based on the Arduino platform, a GPS sensor, a GY-91 sensor with an inertial measurement unit consisting of three orthogonally located: angular velocity meter, accelerometer and the single-channel barometer based on the MP280 MEMS. An algorithm for positional (manual) control of the navigation platform by pitch and roll angles using two servos, through a control stick and a virtual COM port is implemented. A diagram illustrating the logic of interaction of the structural elements of the simulator, a part of the software implementation of the complementary filter used, as well as the function of its calculation and simulation links of the Simulink model are presented. The information exchange between the PC and the Arduino microcontroller is considered. A conclusion was made about the feasibility of creating and using the developed simulator to justify the use of a particular navigation and filtering algorithm for a specific type of aircraft.
Addition of three Ascidian species to Indian waters from Andaman and Nicobar Islands
Authors: Mondal Jhimli , Raghunathan C.
Published: January 2025

Ascidians are exclusively marine, an invertebrate chordate faunal group commonly known as sea-squirt; found worldwide from intertidal to a greater depth of the ocean. Three species of ascidians, Polycarpa reniformis (Sluiter, 1904) and Cnemidocarpa hemprichi Hartmeyer, 1916 belonging to the family Styeidae and Microcosmus bitunicatus Monniot F. and Monniot C. 2001 belonging to the family Pyuridae of order Stolidobranchia under the class Ascidiacea were recorded from the reef environment and shipwreck area of Andaman and Nicobar Islands first time from Indian waters. Taxonomic characteristics along with their previous distributional range are depicted in the present article
Molecular identification of selected crabs from Odisha coast in Eastern India
Authors: Rath Shibananda
Published: January 2025

To identify the selected crab species belonging to three families, the present study standardize the DNA-based investigation protocol. The chelate legs are the most reliable body parts for DNA extraction and subsequent experiments related to DNA barcoding. The HCO-LCO primer pairs are efficient at amplifying the targeted mitochondrial COI region. The generated DNA sequences of Portunus pelagicus (family Portunidae), Uca rosea (family Ocypodidae), and Muradium tetragonum (family Sesarmidae) 99-100 % similarity with the reference GenBank sequences by the nucleotide BLAST search. The molecular investigation was congruent with the taxonomic identification of the studied crab species from the Odisha Coast in eastern India
Pseudonapaeus purii (Ray, 1951), comb. nov., rediscovery of an endemic snail from western Himalaya (Gastropoda: Enidae)
Authors: Tripathy Basudev , Mukhopadhyay Amit , Sajan Sheikh
Published: January 2025

The new combination Pseudonapaeus purii (Ray, 1951) (= Ena purii Ray, 1951) is proposed, based on a morphological re-examination of the type specimen of a land snail housed in the National Zoological Collections of the Zoological Survey of India, and re-discovered after a gap of 67 years from the proximity of the type locality. The occurrence of such a land snail even after 67 years since it was discovered in the landscape indicates the suitability of the habitat for such a climatesensitive organism, however, demands in-situ protection. The illustration of the type series and justification for its transfer are discussed herein.
Amphibians of Anjudiva Archipelago West Coast, Arabian Sea, India
Authors: Hegde Amit , Kadadevaru Girish
Published: January 2025

Anjudiva archipelago in the Arabian Sea is close to the mainland on the west coast of India. It constitutes eight small island patches seen parallel and close to the central Western Ghats. Islands have rocky, laterite, open grasslands and forests. As there are no previous studies on the faunal diversities of these islands, the present study is undertaken to record amphibian species availability within the islands. The present study records two species of dicroglossid frogs through primary surveys and questionnaire methods. Since saltwater is considered a barrier for amphibian dispersal, we hypothesize that these species might have lived in these islands for a long period when all of the islands were connected to the mainland historically, as the wild flora species display a similar pattern to Western Ghats diversity. On the other end, introductions of these two species of frogs could be human-mediated in the process of getting fresh water to the islands.
Faunal Composition of Ramsar Wetlands from India: An Analysis
Authors: Banerjee Dhriti , Bharti Daizy , Kumar Santosh , Mitra Ankush , Joshi Rahul , Gupta Devanshu
Published: January 2025

Ramsar Sites are wetlands of international importance and must meet many criterions before being declared as RamsarWetlands, such as having over 20,000 or more water birds and a large number of local fish species. On the occasion of 75years of independence, the Prime Minister of India announced that the total number of Ramsar Sites in India has increased to 75. Following, the 97th Episode of Mann Ki Baat (on 29.01.2023) by Prime Minister of India, Zoological Survey of India took initiative to compile and document the faunal composition of all the 75 Ramsar Wetlands (RWs) in India. For the first time, it has been found that the faunal diversity of RWs in India accounts for over 7.0% of the total fauna of India, which includes over, 4,538 species of invertebrates, 1,691 species of vertebrates and 562 species of protozoans. Over 2072 species of insects, 672 species of crustaceans, 237 species of arachnids, 187 species of earthworms, polychaetes and leaches are known from these wetlands. There are over 6,791 species of mammals, 739 species of birds, 643 species of fishes, 133 species of reptiles, and 44 species of amphibians. Among vertebrates known from RWs, 26 species are Critically Endangered, 42 Vulnerable and 72 Endangered. This baseline information would be extremely useful for further strengthening the database of each wetland and will be impactful for wetland conservation and management towards its sustainable use.
First record of two species of Xylenini (Lepidoptera: Noctuidae: Noctuinae) from India
Authors: Ahmad Jalil , Singh Navneet , Joshi Rahul
Published: January 2025

In this study, two Himalayan inhabitant Hemiglaea mirabilis Hreblay & Ronkay, 1998 and Agrochola magarorum Benedek, Bebics & Saldaitis, 2013 under tribe Xylenini (Lepidoptera: Noctuidae: Noctuinae) are recorded for the first time from India. Diagnosis and images of habitus and male genitalia are provided.
First record of subfamily Diapriinae (Diaprioidea: Diapriidae) from Odisha, with generic level distribution in rice ecosystems
Authors: P. V. Theertha  , K. Rajmohana  , Patra Sunita
Published: January 2025

The present work investigates the distribution of diapriids in the rice fields of Odisha. About 750 diapriid specimens were collected across 10 rice fields falling under the 10 agroclimatic zones through various surveys conducted from 2018-2021. The study documented nine out of the 14 genera of the subfamily Diapriinae found in India, viz. Aneuropria Kieffer, Basalys Westwood, Calogalesus Kieffer, Coptera Say, Entomacis Foerster, Monelata Foerster, Odontopria Kieffer, Spilomicrus Westwood, and Trichopria Ashmead. The distributional status of diapriids across the agroclimatic zones is presented through GIS mapping. Comments on their abundance and morphological specializations are also mentioned. Diapriids are documented for the first time in Odisha. The present findings indicate that they are abundant and widespread in the rice ecosystems of Odisha.
Pets or predators? climate change and invasion risk of red-eared slider (Trachemys scripta elgans)
Authors: N. A. Aravind  , Mohopatra Pratyush P. , Bhat H. N. Poorna , Narayanan Surya
Published: January 2025

Red-eared slider (Trachemys scripta elegans) is one of the popular turtles in the pet trade worldwide and is known to be the worst invasive species in several countries. Several records of T. s. elegans exist from India, indicating its possible expansion in the natural habitat but lack a comprehensive investigation. Using the ecological niche modelling tools, we here predict the possible expansion with changing climatic scenarios and test the hypothesis of niche conservatism. Our study indicates a significant increase in the suitable areas of RES that also correlates with the high diversity regions of Indian chelonians. We also discuss the gaps in existing laws and policies in India handling exotic/invasive species and recommend policy and management suggestions.
Description of Two New Species of Eulophus Geoffroy, 1762 (Hymenoptera: Chalcidoidea: Eulophidae) from India
Authors: Raza Mohd Tanjeem , Zeya Shahid Bin
Published: January 2025

Two new species of Eulophus Geoffroy (Eulophidae: Eulophinae), namely Eulophus orientalis Raza & Zeya, sp. nov. and E. almoriensis Raza & Zeya, sp. nov. are described from India. A revised key to Indian species of Eulophus is also given.
First Record of a Whitefly, Asialeyrodes euphoriae Takahashi 1942 (Hemiptera: Aleyrodidae) from India
Authors: Dubey Anil Kumar , Kousalya Lakshmi
Published: January 2025

Asialeyrodes euphoriae Takahashi, found infesting an unidentified shrub in the South Andaman, is the first record to the Indian fauna of whitefly. Puparia of the A. euphoriae are broadly oval in shape, have complete submarginal furrow, and found on the both surface of the leaves.
Redescription of a Labeonid Fish Garra nasuta (McClelland, 1838) from its Type Locality in Meghalaya India
Authors: Marngar Ibansiewdor , Lokeshwor Yumnam
Published: January 2025

Garra nasuta (McClelland, 1838) is redescribed based on the specimens collected from two river basins in the Khasi Hills, Meghalaya. It was described as Platycara nasuta by McClelland in 1828 from Kasya mountains, Assam (now Khasi Hills, Meghalaya). The type specimens of G. nasuta do not exist, and its identity is not yet clear. The study has been based on morphological, anatomical, and osteological characteristics. A neotype has been designated to solve the taxonomic ambiguities of Garra nasuta. It is distinguished from other congeners in having a trilobed proboscis, a pit-like crease between nares, 33–34 lateral line scales, 9–10 pre-dorsal scales, and 16 circumpeduncular scales.
Characterization and Morphologically Identification of Scavenger Syrphid (Insecta: Diptera) Pupae Using Scanning Electron Microscopy (SEM) Study
Authors: Roy Bristi , Sengupta Jayita , Naskar Atanu , Mandal G. P. , Banerjee Dhriti
Published: January 2025

The preimaginal stages of hoverflies have a range of feeding habitats benefiting the ecosystem in plenty ways: control aphid population on crop plants, scavenger, and predator in the ant nest, decomposer of organic matter, etc. Indeed, studies on Indian syrphid fauna have long been restricted only to the morpho-taxonomy of the adult stage. The present study has identified, characterize, and elucidate scavenger syrphid pupae collected from the different habitats of Gangetic Plains using a Scanning Electron Microscopic (SEM) study. The ultrastructural morphology of the pupal spiracle (shape, size, surface nature, and extensions from the surface) has been found to hold the diagnostic key to species.
Larval and Adult Taxonomy of Kodomillet Shoot Fly Atherigona simplex (Thomson) (Diptera: Muscidae)
Authors: Ganiger Prabhu , . Muddasar , Madigar Yamanappa R , R Aswini
Published: January 2025

The present study provides a detailed taxonomic note on both adult and maggot stages of Atherigona simplex. The adult males are mainly identified with the genitalia characters i.e., the hypopygial prominence with a characteristic deep notch at the middle; trifoliate process with median piece and lateral plates yellow on basal half and dark brown in apical half. The maggots are identified based on the characters of cephalopharyngeal skeleton, number of digitations in anterior spiracles and shape of the posterior spiracles. Here, the detailed morphology of first, second and third instar maggots is described and illustrated for the first time.
Diversity and Spatial Distribution of Molluscs along the Salinity Gradient in Ashtamudi Lake Ramsar Site, Kerala, India
Authors: Vishwanathan Chinnu , A. Biju Kumar
Published: January 2025

Study of the diversity and spatial distribution of molluscs along salinity gradient in Ashtamudi Lake recorded the presence of 83 species with one polyplacophoran, 41 gastropods, 37 bivalves and four cephalopods. The species diversity in various salinity zones was in the order: saline zone- 80 species > estuarine zone- 28 species > freshwater zone- 14 species. The report includes three species new to the west coast of India: Assiminea woodmasoniana G. Nevill, 1880, Rugalucina vietnamica (Zorina, 1978) and Platevindex martensi (Plate, 1893). Species: such as Chiton granoradiatus Leloup, 1937; Clithon sowerbianum (Récluz, 1843); Littoraria pallescens (Philippi, 1846); Acteocina decorata (Pilsbry, 1904); Alaona ala (Hanley, 1845) and Serratina siamensis (E. von Martens, 1860) are new to Kerala. The paper analyses the alpha and beta diversity of molluscs in the Ashtamudi Lake, Kerala.
Preliminary Assessment of Arthropod Diversity of the Rock-Cut Caves of Satara District, Maharashtra, India
Authors: Kumar Misal Pooja , Sureshchandra Kalawate Aparna
Published: January 2025

Palpeshwar caves are located near Lohare village,Wai in Satara district. These caves are situated in the Northern Western Ghat’s, Maharashtra. These are rock-cut caves and never been explored for their assessment of biodiversity, particularly arthropod fauna. Today, the need of the hour is to document the cave fauna before its extinction due to anthropogenic pressure. Consequently, an attempt has been made to document the preliminary arthropod diversity of the Lohare, Palpeshwar cave. The two exploratory surveys were conducted for two months to investigate arthropod diversity in the study area. The results of the two surveys revealed that a total of six different orders representing 21 species of the phylum Arthropoda were recorded in different microhabitats of rock-cut cave. Among these orders, Lepidoptera shows its dominance over other species of arthropodan fauna. For a proper assessment of the arthropod diversity of the cave, more extensive surveys will be undertaken seasonally.
Taxonomy of the genus Nala Zacher, 1910 (Dermaptera: Labiduridae) from India
Authors: Lekha Dey Shruti , Emiliyamma K. G.
Published: January 2025

Three species of the genus Nala, viz., Nala lividipes (Dufour, 1829), Nala nepalensis (Burr, 1907) and Nala basalis Bey- Bienko, 1970 are known from India. These species are redescribed and illustrated based on detailed morphological characters, the unique male forceps structure and the structures of male genitalia. New additional diagnostic characters, which are more specific to each species are proposed for the identity of these species. A key to the Indian species of the genus Nala is provided, along with a systematic list, geographical distributions, type localities, taxonomic remarks, digital images and point distribution map of each Indian species. This study will be useful for the accurate identification of the species by future researchers.
First record of Chaetonotus (Primochaetus) heideri (Gastrotricha, Chaetonotida) from India
Authors: Krishnan Sreerag , Ghosh Arnab , Bharti Daizy , Todaro M. Antonio , Kumar Santosh
Published: January 2025

This study briefly reports a newly recorded gastrotrich species, Chaetonotus (Primochaetus) heideri Brehm, 1917, which was isolated from the water sample collected from the Ramsar site Khajjiar Lake, Himachal Pradesh, India. A brief description of the Indian population, based on photomicrographs taken from live specimens, is presented here. The species is reported to be common in freshwater habitats in many areas of the world and is also known to exhibit variable morphology.
Bird observations from Pulicate Lake Bird Sanctuary and the adjoining areas in India
Authors: Alam Imran , Majumder Amitava , Naskar Anindya , Maheswaran Gopinathan
Published: January 2025

The present study reports the results of ornithological surveys conducted in Pulicate Lake and its adjoining water bodies in the states of Andhra Pradesh and Tamil Nadu, India conducted from January to April 2021. A total of 161 bird species were recorded, belonging to 19 different orders, 52 families, and 114 genera. Of these, 11 species were classified as Near Threatened, 1 as Vulnerable, and 149 as Least Concern according to the IUCN threatened categories. The results revealed a rich bird diversity in the study area, with several noteworthy observations. Further, the surveys also revealed that 19 species are listed under Schedule I and 141 species are listed under Schedule II, of the Indian Wildlife Protection Act, 1972. In conclusion, this study provides a comprehensive report on the bird diversity in Pulicate Lake and its adjoining water bodies and emphasizes the need for conservation efforts to protect the threatened species and maintain the overall ecological balance. These findings could be of value in formulating conservation strategies for the avifauna in this region and serve as a valuable reference for future studies. The study’s results offer practical insights for habitat management and conservation planning. The species we have identified can act as crucial indicators of the area’s ecological well-being, guiding management choices. This study underscores the importance of ongoing monitoring and conservation initiatives to safeguard the region’s avian diversity.
A new record of Heptagenia (H.) quadripunctata Kluge, 1989 (Heptageniinae: Heptageniidae: Ephemeroptera) from the Western Himalaya, India
Authors: M. Vasanth  , T. Kubendran  , K. A. Subramanian  , Paray Nisar Ahmad , Roy Soumen
Published: January 2025

As part of continued efforts to explore the Ephemeroptera fauna of the streams or rivers of Indian Himalaya, Heptagenia (H.) quadripunctata Kluge, 1989 is newly recorded based on the fresh materials collected from the North Western Himalaya, India. The redescription of this species with morphological characters of larvae based on freshly collected specimens and earlier descriptions is appended. The distribution map of the species localities is also provided.
First record of Acentrogobius nebulosus (Forsskal, 1775) from the coast of Gujarat, India
Authors: Dutta S. , Saren S. C. , Pillai H. U. K. , Sengupta A.
Published: January 2025

The present study reports the occurrence of a gobiid species, Acentrogobius nebulosus (Forsskal, 1775) for the first time from the Gulf of Kutch, Gujarat. Specimens were collected from the Okha and Salaya fish landing centres under the district of Devbhumi Dwaraka in Gujarat.
Lankascincus fallax (Peters, 1860) (Reptilia: Scincidae: Ristellinae) in Kerala with the first report of the genus from India
Authors: Krishna Haree , Ray Sumidh , Arya S. , Jena Sudheer Kumar , Varadaraju  , Mohapatra Pratyush P.
Published: January 2025

Lankascincus fallax (Peters) is reported for the first time from India based on eight specimens collected from Alappuzha, Kerala. This earlier thought Sri Lankan endemic skink is locally abundant in Alappuzha and possibly distributed in the lowlands of the southern Western Ghats. With the addition of L. fallax, the Scincidae diversity of Kerala has increased to 23 species.
Enclaves for the Excluded
Authors: Draper Jamie
Published: January 2025

This paper investigates the claim that immigrants have a moral duty to integrate. I argue that socially excluded immigrant minorities have a moral permission to form enclaves, which means that they have at most only limited duties to integrate. Positively, I argue that enclaves can play an important role in supporting the self-respect of socially excluded immigrants. Negatively, I argue social exclusion makes the putative duty to integrate—when it conflicts with enclave formation—unreasonably burdensome. I also argue that even if integration is a genuine duty, it cannot be permissibly enforced as a social expectation vis-à-vis socially excluded immigrants because members of dominant social groups lack standing to blame socially excluded immigrants for failing to integrate. My argument is pessimistic because it recognizes that integration may nonetheless play an important role in tackling relational inequality. Social exclusion thus means that immigrant minorities have only limited duties to integrate, but it also makes integration particularly valuable.
Support for and likely impacts of endgame measures in the Smokefree Aotearoa Action Plan: findings from the 2020–2021 International Tobacco Control New Zealand (EASE) surveys
Authors: Nip Janine , Stanley James , Zhang Jane , Waa Andrew , Ball Jude , Tautolo El-Shadan , Johnson Ellie , Agar Thomas , Quah Anne , Fong Geoffrey , Edwards Richard
Published: January 2025

aim: In February 2024, the Aotearoa New Zealand Government repealed legislation to mandate very low nicotine cigarettes (VLNCs),
greatly reduce the number of tobacco retailers and disallow sale of tobacco products to people born after 2008 (smokefree generation).
We investigated acceptability and likely impacts of these measures among people who smoke or who recently (≤2 years) quit smoking.
method: We analysed data from 1,230 participants from Wave 3 (conducted in late 2020 and early 2021) and 615 participants from
Wave 3.5 (conducted in June/July 2021) of the New Zealand arm of the International Tobacco Control (ITC) Policy Evaluation Project.
Data were weighted to represent the national population of people who smoke and who recently quit smoking.
results: Support (excluding “Don’t know” responses) was 82.7% (95% confidence interval 77.9, 86.6) for a smokefree generation,
75.0% (95% CI 71.4, 78.3) for mandated VLNCs and 35.2% (95% CI 31.7, 38.9) for retailer reduction. Support was mostly similar by
ethnicity, gender, age and evidence of financial hardship, but was higher among people who had recently quit smoking.
Around half of the participants who smoked anticipated quitting completely, switching to vaping or cutting down the amount they
smoke if mandated VLNCs or substantial retailer reductions were introduced. If VLNCs were mandated, 19% of people who smoked
stated they would carry on smoking like they do now and find a way to get the cigarettes or tobacco they want to smoke.
conclusion: Support for and anticipated actions in response to the smokefree legislation measures call into question the
Government’s decision to repeal them.
Test Deposit; Please Ignore
Authors:   , Atkins Ori
Published: January 2025

Testing
ENHANCING PVT SYSTEM PERFORMANCE WITH HYBRID Grp/Al₂O₃ NANOPARTICLES
Authors: Shaalan Zaid. A. , Hussein Adnan. M. , Abdullah M. Z.
Published: January 2025

The enhancement effect of hybrid nanofluids, especially with Grp/AL2O3 nanoparticles could be considered promising in enhancing the cooling of photovoltaic (PV) panels. Scholars have established that these nanoparticles improve heat transfer and convective heat transfer, therefore increasing the efficiency of solar panels. This work employed CFD analysis to investigate the characteristics of a new hybrid nanofluid, which is (Graphene Nanoplatelets (Grp) and aluminum Oxide (AL2O3). The system used in this study comprises three solar panels with identical specifications but using different cooling methods: air-cooled, water-cooled, and hybrid nanofluid-cooled. The found data demonstrates that the electrical efficiency of the solar cells, cooled by the hybrid nanofluid, is comparatively higher than the air-cooled and water-cooled solar cells: 12.2% and 7.6%, respectively, and the rise in power of the solar cells cooled by the hybrid nanofluid is comparatively higher to the air-cooled and water-cooled solar cells: 12.72% and 6.87 When applying the hybrid nanofluid cooling technique, the maximum surface temperature of the PV cells was reduced by 114% than that in air-cooled cells and 1.9% from water-cooled cells. As for the practical applications, it can be noted that hybrid nanofluids have demonstrated rather promising effects, enhancing the cooling efficacy of photovoltaic panels and, therefore, the efficacy of both overall solar energy systems.
ESMIoTHD: ENHANCED BLOCKCHAIN SECURITY AND MANAGEMENT FOR IOT-BASED HEALTHCARE DATA, A ROBUST FRAMEWORK FOR TRUST AND INTEGRITY
Authors: Chandika Hari Prasad , Raja Kumar Kontham
Published: January 2025

The primary focus of the study, entitled “Enhanced Blockchain Security and Management for IoT-Based Healthcare Data: A Robust Framework for Trust and Integrity”, was to determine the performance of four encryption algorithms, SADBTM, ECSBFQL, HBDMS, and ESMIoTHD, regarding their encryption and decryption times, average latency, and packet delivery ratio on different data sizes. It can be seen that employing blockchain security and management increases the security of IoT-based healthcare data. Consequently, this ensures that healthcare data can be linked to the confidentiality, integrity, and availability that remains central in today’s digitally interconnected world. Since the blockchain is a decentralized medical data-sharing tool that is impossible to alter, it is more secure due to guaranteed no potential unauthorized access to the data. Additionally, as indicated in the results during the performance evaluation of the blockchain systems in IoT healthcare networks, it was possible to improve patient data privacy, make data access easier, and ensure the trustworthiness of the healthcare systems. For instance, according to the study’s results, the encryption and decryption times had been computed in terms of milliseconds. The range of the data size was from 10 kilobytes to 100 kilobytes. When 100 data points had been encrypted, the ESMIoTHD had the lowest encryption time, namely, 12363 m, as compared to its encryption peers which include 13232 m, 13854 m, and 14376 m SADBTM, ECSBFQL, and HBDMS, respectively. Conversely, the results regarding the decryption times revealed a similar pattern to the encryption times. That is there was no significant deviation between the three encryption algorithms with the values being 13232 m, 13854 m, and 14376 m; however, ESMIoTHD had a decryption time of 13232 m. The average latency had been calculated in terms of milliseconds (m), whereby the results showed that ESMIoTHD has equivalent performance and its average latency was closest to its peers, such as 808 m for 100 data points. The packet delivery ratio had been computed in terms of percentages. Both the encryption and decryption algorithms had a similar pattern as they had been assessed based on the three results. However, the results show that ESMIoTHD had the highest PDR values in all data sizes, for example, the PDR was 98.896% for a 100 kb data size, which was far much higher than its peers. Based on the results of ESMIoTHD being the most efficient and reliable, particularly in terms of high throughput and low latency, these outcomes show that it is one of the leading encryption algorithms.
Disfunción Cardiometabólica: bases fisiopatológicas y abordaje interdisciplinario
Authors: Balladares Salazar Manuel Francisco , Hernandez Navarro Marlene Isabel , Ramírez Amaya Josefina Elizabeth , Arteaga Pazmiño Cecilia Liceth , Galvez Celi Jhonny Javier , Balladares Mazzini Manuel Bernardo , Zambrano Manzur Nelly de las Mercedes , Lindao Cañizares Miriam Gisela , Emen Sanchez Janet Paola , Garcia Acuña Liuva Tamara
Published: January 2025

El presente texto tiene un valor científico y académico específico, pero también una relevancia para quienes toman decisiones en las políticas públicas de los países. Ya patologías como la diabesidad (es decir, la interacción básica entre la obesidad y la diabetes) y otras que conforman el complejo denominado Patologías cardiometabólicas, constituyen un motivo de alarma internacional, decretado por las organizaciones internacionales, la OMS en primer término, y se considera como una pandemia la obesidad.
Tal y como se revela en los diferentes estudios, varios de los cuales están contenido en el presente texto, se trata de patologías que resultan de la interacción de complejos procesos a diferentes niveles, desde el molecular, el bioquímico, el microscópico, donde los actores principales son las secreciones y las células del organismo, hasta las conexiones de mayor escala, como los sistemas cardiovascular, digestivo, inmunológico y endocrino, para nombrar los más importantes involucrados en estas patologías.
En su conocimiento y análisis están dedicadas las energías de muchos científicos en todo el mundo, que se afanan en laboratorios, experiencias clínicas, programas de atención, pero también en la labor educativa y social necesaria porque se trata también de cambiar algunos hábitos costumbres, que conforman los estilos de vida y, no solo eso, sino los comportamientos de la vida diaria que se reúnen en estilos de vida, muchas veces moldeados por la publicidad comercial de los alimentos ultraprocesados, los cuales, se ha comprobado, constituyen una amenaza cierta para la salud de las poblaciones. De modo que, dada la complejidad del fenómeno de las enfermedades cardiometabólicas y metabólicas, incluida la diabetes, un texto como el presente exige un esfuerzo y un interés científico importante.
El libro que entregamos hoy a los lectores, recoge en parte la complejidad propia de los temas abordados, pero también la claridad explicativa suficiente como para constituir un material de consulta para estudiantes de las carreras relacionadas con las ciencias de la salud, y para todo aquel que considere necesario adentrarse en estos temas, que son sorprendentes y maravillosos por su intrincada complejidad.
Estimation of Parameters of Lomax Exponential Distribution
Authors: Nayabuddin
Published: January 2025

The concept of p-th upper record value was introduced by Dziubdziela and Kopocinski [5]. Estimation of the location and scale parameters of the Lomax exponential (LE) distribution are obtained based on generalized record values.  The best linear unbiased methods of estimation are used for this purposes.
Undrained monotonic behavior of a dune sand stabilized with porcelain waste and lime
Authors: Silva José Daniel Jales , Santos Júnior Olavo Francisco , Freitas Neto Osvaldo , Silva Romário Stéffano Amaro , Araújo e Farias Manoel Leandro , Lira Bruna Silveira
Published: January 2025

This work uses a new cementitious agent composed of porcelain polishing waste and
hydrated lime in the mitigation of static liquefaction in a loose dune sand. The undrained
behavior of the soil was investigated in 16 triaxial tests under four confining stresses (50,
100, 200 and 400 kPa), on loose samples (relative density of 25%) compacted with two
levels of waste (10% and 30%) and lime contents (3% and 7%) cured at 28 days. Stressstrain
behavior, ultimate strength and critical state parameters were evaluated. The results
showed a brittle response of the stabilized sands, dilatant tendency and low liquefaction
potential, however, the behavior changes with the increase in the confining stress. A
friction angle of up to 42.6° and a cohesion intercept of up to 108.1 kPa were found for
the stabilized sand. When compared to the pure sand, stabilization caused an increase in
strength, of up to 17 times, and in brittleness with a change from contractive to dilatant
behavior. For tests up to 200 kPa, the liquefaction potential reduced to values below zero.
Therefore, the cementation of the grains by using porcelain polishing waste and hydrated
lime was efficient in mitigating the static liquefaction potential of the dune sand.
Fear of Missing Out dan Social Media Addiction: Study Meta Analisis
Authors: Kartikawati Ida Ayu Nyoman , Mulyadi Seto , Rahardjo Wahyu
Published: January 2025

Di era globalisasi ini, jaringan internet menjadi faktor utama dalam mengakses informasi untu menjalankan kehidupan sehari hari seperti untuk pendidikan, bisnis, kesehatan, pemerintahan dan juga juga kegiatan sosial serta hiburan. Jaringan internet yang mudah diakses dapat memberikan pemenuhan kebutuhan terkoneksi dan rasa ingin tahu dengan cepat sehingga berpotensi untuk memunculkan perilaku penggunaan internet bermasalah (problematic internet use / PIU) dan perasaan takut tertinggal karena melewatkan informasi atau peristiwa berharga (fear of missing out / FoMO). Penelitian yang memeriksa hubungan FoMO dan PIU sudah banyak dilakukan, untuk itu perlu diketahui besar effect size dari hasil penelitian yang ada sebelumnya sebagai acuan untuk penelitian lanjutan terkait FoMO dan PIU. Penelitian ini melihatkan 19 artikel publikasi internasional dari tahun 2019-2024. Hasil random effect size menunjukan ukuran efek size yang sedang ( r = 0.461 ; z = 12.368 p = < 0.001; 95% CLI [ 0.388 ; 0.534]). Temuan ini menunjukan perasaan takut tertinggal karena melewatkan informasi dan peristiwa berharga dapat menjadi prediktor bagi munculnya perilaku penggunaan internet yang bermasalah. Menggunakan internet bermasalah terjadi karena individu dengan perasaan takut tertinggal informasi dan peristiwa berharga melakukan koping untuk untuk meredakan perasaan negatif yaitu cemas akibat takut melewatkan informasi atau peristiwa penting dengan menggunakan internet secara berlebihan. Hasil hitung efek size FOMO dan PIU memberikan peluang untuk dilakukan uji moderasi dan mediasi bagi penelitian FoMO dan PIU lebih lanjut.
Validitas dan Reliabilitas Alat Ukur Grit pada Mahasiswa di Indonesia
Authors: Fun Lie Fun , Vivekananda Ni Luh Ayu , Mikarsa Hera Lestari , Putri Dian Kemala
Published: January 2025

Pengukuran kegigihan atau grit pada mahasiswa di Indonesia penting dilakukan mengingat konteks negara Indonesia memiliki ciri khas tertentu bila dibandingkan dengan negara barat. Selama ini para peneliti di Indonesia banyak memakai alat ukur grit dari Duckworth yang terdiri dari dua dimensi. Penelitian ini bertujuan untuk menyusun alat ukur grit pada mahasiswa di Indonesia dengan penambahan satu dimensi, yaitu kemandirian serta melakukan pengujian psikometrik dari alat ukur tersebut. Penyusunan grit berdasarkan tiga dimensi baru dan melakukan pengukuran serta analisis melalui uji validitas isi, uji keterbacaan, uji diskriminasi aitem, uji reliabilitas, dan uji confirmatory analysis. Hasil koefisien Alpha Cronbach sebesar 0,896 dan Omega McDonald sebesar 0,898. Hasil standard loading factor item berkisar antara 0,608-0,816. Hasil pengujian fit indices: CFI 0,928; TLI 0,906; RMSEA 0,08; SRMR 0,043. Hasil analisis menunjukkan bahwa alat ukur grit memiliki koefisien reliabilitas dan uji conformatory analysis yang fit. Hal ini menunjukan bahwa alat ukur ini fit dengan jumlah 12 aitem.
Hubungan antara Efikasi Diri dengan Sikap Pengasuhan Digital: Kajian pada Orang Tua Marginal
Authors: Prihardini Irni , Sahrani Riana , Dewi Fransisca Iriani Roesmala
Published: January 2025

Penggunaan internet dan perangkat digital yang tinggi di kalangan anak-anak di Indonesia umumnya tidak disertai dengan pendampingan dan aturan yang memadai dari orang tua. Hal ini dapat menyebabkan kesenjangan antara pengasuhan yang diberikan dan apa yang diterima oleh anak melalui perangkat digital dan internet. Pengasuhan digital menjadi kebutuhan bagi orang tua untuk menerapkan strategi pola asuh yang sesuai dengan tuntutan peran dan tanggung jawab di era digital. Sikap pengasuhan digital mencakup aspek kognitif dan emosional orang tua terhadap penggunaan perangkat dan media digital oleh anak-anak. Salah satu faktor yang dapat meningkatkan sikap pengasuhan digital adalah efikasi diri orang tua. Merujuk pada keyakinan dan kompetensi orang tua dalam mengelola penggunaan teknologi digital oleh anak-anak. Penelitian ini bertujuan mengetahui peran efikasi diri pengasuhan digital terhadap sikap pengasuhan digital. Metode penelitian yang digunakan adalah kuantitatif non-eksperimental dengan teknik convenience sampling menggunakan analisis korelasi dan regresi. Instrumen yang digunakan adalah Digital Parenting Attitude Scale dan Digital Parenting Self-Efficacy Scale. Jumlah partisipan yang berpartisipasi sebanyak 385 ibu rumah tangga, memiliki anak usia sekolah dasar, tidak bekerja, dan tinggal di wilayah marginal. Hasil penelitian menyimpulkan bahwa efikasi diri dalam pengasuhan digital berperan dalam membentuk sikap pengasuhan digital pada orang tua.
Educação das infâncias
Authors: Elesbão Heloisa , Salva Sueli
Published: January 2025

O artigo tem por objetivo discutir, teoricamente, a temática da educação das infâncias a partir das possibilidades da Teoria do “Brincar e ‘Se-movimentar’”. No artigo, buscamos problematizar uma questão que, ao nosso ver, é de extrema importância e que se refere à especificidade da Educação Infantil e interroga como a Teoria do “Brincar e ‘Se-movimentar’” pode contribuir, positivamente, nesse processo. O caminho metodológico escolhido para o desenvolvimento do estudo foi a revisão narrativa. Com o estudo, observamos que há a necessidade de oferta de espaços e tempos escolares que proporcionem às crianças o desenvolvimento livre e espontâneo de sua criatividade, bem como de momentos para explorarem o mundo ao seu redor, através de seus corpos, e que o conhecimento que as próprias crianças constroem seja reconhecido por meio do “Brincar e ‘Se-movimentar’”. Sustenta-se a importância do brincar como uma necessidade diária das crianças, uma necessidade básica para a sua sobrevivência, não devendo ser utilizado meramente como um recurso para atingir algum objetivo.
SENTIMEN ANALISIS EVALUASI PENGGUNA APLIKASI ORBIT TELKOMSEL PADA ULASAN PLAYSTORE MENGGUNAKAN ALGORITMA NAÏVE BAYES
Authors: Lestari Vika Febri , Arsi Primandani , Subarkah Pungkas
Published: January 2025

Dalam era digital, aplikasi mobile, khususnya aplikasi internet rumah, memainkan peran penting dalam mendukung aktivitas harian pengguna. Studi ini bertujuan untuk melakukan analisis sentimen terhadap aplikasi Telkomsel Orbit, layanan internet rumah serba digital yang menyediakan koneksi melalui modem WiFi dengan jaringan 4G LTE. Metodologi penelitian melibatkan proses scraping data, preprocessing teks, dan penerapan algoritma klasifikasi Naïve Bayes untuk menganalisis ulasan dan peringkat yang diberikan pengguna di Play Store. Telkomsel Orbit menawarkan fitur unggulan seperti pengaturan Wi-Fi melalui aplikasi MyOrbit, WiFi tamu, dan penyesuaian filter website. Hasil penelitian menunjukkan bahwa penerapan metode Naïve Bayes menghasilkan tingkat ketepatan mencapai 79%, dengan presisi sebesar 80% dan recall 79%.Temuan ini menunjukkan bahwa mayoritas ulasan yang diberikan oleh pengguna cenderung positif terhadap aplikasi Telkomsel Orbit. Hal ini mengindikasikan bahwa layanan tersebut dinilai secara positif oleh pengguna, dengan fitur-fiturnya yang dianggap bermanfaat dan kualitas layanannya yang memuaskan. Penelitian ini memberikan wawasan yang berharga bagi Telkomsel Orbit untuk memahami umpan balik pengguna dan terus meningkatkan pengalaman pengguna mereka.
Evaluasi Usability Media Pembelajaran Alfabet Berbasis Augmented Re-ality Menggunakan Metode Addie Dan Human-Centered Design
Authors: Dasuki Moh. , Rahman Miftahur , Saifudin Ilham
Published: January 2025

Penelitian ini bertujuan untuk mengembangkan dan mengevaluasi aplikasi pembelajaran alfabet berbasis Augmented Reality (AR) untuk anak-anak usia 5-6 tahun dengan pendekatan ADDIE dan Human-Centered Design (HCD). Aplikasi ini dikembangkan untuk mengatasi masalah kesulitan anak-anak dalam mengenal huruf dengan cara yang lebih interaktif dan menyenangkan. Model ADDIE digunakan untuk merancang dan mengembangkan aplikasi melalui tahapan analisis, desain, pengembangan, implementasi, dan evaluasi, sedangkan HCD memastikan aplikasi berfokus pada kebutuhan pengguna. Evaluasi usability dilakukan menggunakan User Experience Questionnaire (UEQ), yang mengukur enam dimensi utama: Attractiveness, Perspicuity, Efficiency, Dependability, Stimulation, dan Novelty. Hasil evaluasi menunjukkan bahwa aplikasi memperoleh skor Attractiveness sebesar 1,82, Efficiency sebesar 1,80, dan Dependability sebesar 1,60, yang semuanya tergolong good. Pada dimensi Perspicuity, aplikasi mendapatkan skor 1,53 (above average), menunjukkan bahwa aplikasi cukup mudah digunakan, meskipun masih memerlukan penyederhanaan lebih lanjut. Stimulation dan Novelty mencatat skor tertinggi, masing-masing 1,98 dan 2,05, dikategorikan sebagai excellent, menandakan bahwa aplikasi memberikan pengalaman yang menyenangkan dan inovatif bagi pengguna. Kesimpulannya, aplikasi ini memberikan pengalaman belajar alfabet yang positif, dengan kekuatan pada aspek inovasi dan stimulasi, meskipun perlu dilakukan perbaikan dalam kemudahan penggunaan.
Model Blockchain Untuk Pembayaran Lintas Batas Negara Bagi UMKM
Authors: Putranto Bambang Purnomosidi Dwi , Kartadie Rikie , Astuti Femi Dwi
Published: January 2025

UMKM (Usaha Mikro, Kecil, dan Menengah) memainkan peran krusial dalam perekonomian Indonesia, dengan sekitar 64,2 juta unit usaha yang menyerap 97% tenaga kerja. Di tengah dampak pandemi global, pemerintah meluncurkan Pemulihan Ekonomi Nasional, dengan UMKM sebagai fokus utama. Digitalisasi menjadi penting untuk meningkatkan ekspor dan memudahkan pembayaran lintas batas yang aman dan cepat. Hal ini juga menjadi bagian dari agenda Presidensi G20 Indonesia, yang menekankan pengembangan pembayaran lintas negara. Penelitian ini menggunakan pendekatan metode pencarian solusi (solution-seeking) untuk menghasilkan berbagai artefak desain, termasuk arsitektur menggunakan bahasa pemodelan ArchiMate, algoritma, model, dan peranti lunak untuk pembayaran lintas batas. Kami mengadopsi Blockchain Layer 1 Stellar, yang menawarkan protokol terbuka dan terdesentralisasi untuk transaksi mata uang digital dan fiat dengan biaya rendah. Hasil akhir dari penelitian ini adalah model peranti lunak yang memungkinkan pembayaran lintas negara menggunakan Blockchain Stellar, dengan pengembangan yang mengikuti metodologi Disciplined Agile Delivery (DAD). Dengan demikian, penelitian ini berkontribusi pada upaya digitalisasi UMKM dalam menghadapi tantangan ekonomi dan meningkatkan konektivitas global melalui pembayaran lintas batas yang lebih efisien.
Uncovering User Experience Evaluation in Nursing-English Several platforms Through SUS and PSSUQ
Authors: Natrio Yeyep , Malik Rio Andika , Kasrin Rinawati
Published: January 2025

The demand for English-proficient nurses in global healthcare settings has led to the development of multiple Nursing-English learning platforms. However, the user experience (UX) of these platforms significantly impacts their effectiveness in language learning. This study aims to evaluate the UX of several Nursing-English platforms using two established usability measurement tools: the System Usability Scale (SUS) and the Post-Study System Usability Questionnaire (PSSUQ). The primary objective is to uncover usability strengths and weaknesses across different platforms to improve the learning experience for nursing students. The research adopts a mixed-methods design, combining quantitative and qualitative data collection. A total of 109 nursing students from various universities in Sumatra, Indonesia, participated in this study. They were asked to use the Nursing-English platforms and evaluate them based on ease of use, system functionality, and information quality. The SUS provided an overall usability score for each platform, while the PSSUQ offered a more detailed breakdown across system usefulness, information quality, and interface quality. Results revealed an average SUS score of 84.85 across platforms, indicating a high level of user satisfaction. The PSSUQ scores corroborated these findings, with system usefulness and interface quality receiving the highest evaluations. The interactive content and relevance to nursing-specific language were highlighted as strengths, while areas for improvement included navigation and personalization features. Nursing-English platforms offer a generally positive user experience, with opportunities for optimization in user interface and learning customization. This study provides practical insights for enhancing Nursing-English learning tools to support students in preparing for global nursing careers.