bluuebunny/crossref_metadata_2025 huggingface dataset:
Preliminary study of laser-induced breakdown spectroscopy for Mg/Ca investigation in cultured scallop shells
Authors: Li Yuandong , Wang Yangfan , Wang Shi , Zheng Ronger , Bao Zhenmin , Lu Yuan
Published: March 2023

The element ratio of Mg/Ca is a primary proxy in studying the composition of seashells, and laser-induced breakdown spectroscopy (LIBS) is a practical technique for elemental analysis. In this work, we tried to apply LIBS to investigate the Mg/Ca ratio in cultured seashells of two scallop species (Chlamys farreri and Patinopecten yessoensis). It was found that LIBS was capable of tracking Mg/Ca variation on the cross section of the scallop shell (Chlamys farreri), and the variation trend was well verified by the measurement of SEM-EDS. Based on this, LIBS detection was carried out for Mg/Ca investigation on another species of the scallop shell (Patinopecten yessoensis), and the intensity ratio of Mg/Ca presented a similar variation to δ18O measurement under mass spectroscopy. The result also indicated that the LIBS technique is appropriate in the Mg/Ca investigation for scallop shells, and in cultured scallops, the Mg/Ca ratio would be equally useful for tracking temperature variations. In the future, LIBS is expected to be developed as a diagnostic tool in seashell cultivation, and more elemental compositions would be involved in this kind of investigation.
Compositional breakpoints of freshwater plant communities across continents
Authors: García-Girón Jorge , Heino Jani , Baastrup-Spohr Lars , Clayton John , de Winton Mary , Feldmann Tõnu , Fernández-Aláez Camino , Ecke Frauke , Grillas Patrick , Hoyer Mark V. , Kolada Agnieszka , Kosten Sarian , Lukács Balázs A. , Mjelde Marit , Mormul Roger P. , Rhazi Laila , Rhazi Mouhssine , Sass Laura , Xu Jun , Alahuhta Janne
Published: March 2023

Unravelling patterns and mechanisms of biogeographical transitions is crucial if we are to understand compositional gradients at large spatial extents, but no studies have thus far examined breakpoints in community composition of freshwater plants across continents. Using a dataset of almost 500 observations of lake plant community composition from six continents, we examined, for the first time, if such breakpoints in geographical space exist for freshwater plants and how well a suite of ecological factors (including climatic and local environmental variables) can explain transitions in community composition from the subtropics to the poles. Our combination of multivariate regression tree (MRT) analysis and k-means partitioning suggests that the most abrupt breakpoint exists between temperate to boreal regions on the one hand and freshwater plant communities harbouring mainly subtropical or Mediterranean assemblages on the other. The spatially structured variation in current climatic conditions is the most likely candidate for controlling these latitudinal patterns, although one cannot rule out joint effects of eco-evolutionary constraints in the harsher high-latitude environments and post-glacial migration lags after Pleistocene Ice Ages. Overall, our study supports the foundations of global regionalisation for freshwater plants and anticipates further biogeographical research on freshwater plant communities once datasets have been harmonised for conducting large-scale spatial analyses.
Signatory metabolomics biomarkers of stress, anxiety, and depression: a proof of concept for precision health among university students: A cross-sectional study
Authors: Zaman Nur Izzati Umar , Kek Teh Lay , Ahmad Rohana , Noorizhab Mohd Nur Fakhruzzaman , Rofiee Mohd Salleh , James Richard Johari , Nor Norazmir Md , Mohamed Mawarni , Hoon Teoh Sian , Singh Parmjit Singh Arepar , Janor Roziah Mohd , Bakar Sahol Hamid Abu , Salleh Mohd Zaki
Published: March 2023

Purpose: The highly competitive nature of tertiary education and the pressure to perform academically have increased psychological morbidity like emotional distress. Untargeted metabolomics was used to analyze serum samples of university students for biomarkers and perturbated metabolism due to stress, anxiety, and depression (SAD).Methods: Depression, Anxiety, Stress Scale 21 (DASS-21) was used to assess the severity of SAD in university students. The metabolite fingerprint of each subject was obtained using liquid chromatography-mass spectrometry quadrupole time-of-flight (LC/MS QTOF). The signature metabolites for each trait were determined by projections to latent structures discriminant analysis (PLS-DA) with variable importance for the projection (VIP) score > 1.0 (P<0.05) and subjected to analysis using the area under the receiver operating characteristic curve (AUROC). Potential biomarkers with an area under the curve (AUC) value exceeding 0.65 were identified.Results: Various groups of glycerophospholipids were upregulated in the studied traits. On the other hand, metabolites such as glycocholic acid was upregulated in depression, while hypoxanthine was upregulated in anxiety, and PE-Cer(d14:1(4E)/22:1(13Z)) was upregulated in stress.Conclusion: To our knowledge, this is the first study to assess the relationship of the differentially expressed metabolites in university students of different categories of SAD using the DASS-21 screening tool in Malaysia as we move forward with precision health.
Production of Single Cell Oils from Bacterial Sources
Authors: AAK Masurkar
Published: March 2023

Single Cell Oils (SCO) is of profound interest for a variety of purposes ranging from biofuels to nutritional adjuvants, pharmaceutical applications and biotransformation for valuable products. A number of microorganisms have been shown to produce and accumulate SCO. In the present study a methodical attempt was made to isolate potential SCO producers from Indian water sources. Saltwater samples from the Arabian Sea and freshwater samples from an Indian cold-water river (Pindhari River, Uttarakhand) were collected and studied for the occurrence of lipid producing microbes. Of the several isolates shortlisted as lipid producers three isolates from this study were identified as potential SCO producers based on their lipid producing abilities. The types of fatty acids comprising the SCO from selected isolates were studied by Gas Chromatography (GC) and confirmed by Gas Chromatography/Mass Spectrometry (GC/MS). Lipid profiles from the GC analysis showed that the isolates in this study produced economically and nutritionally valuable Monounsaturated fatty acids (MUFA) like Palmitoleic acid and Oleic acid. Also, two isolates from the Arabian Sea were seen to produce a valuable omega-3 Polyunsaturated Fatty Acid (PUFA) like Eicosapentanoic acid. While a freshwater isolate produced Linoleic acid an omega-6 PUFA. Selected isolates were characterized for their biochemical characteristics and identified molecularly by 16S rRNA sequencing. Ornithinibacillus sp. Marseille-P3601 strain isolated in our study from the cold-water River Pindhari, Uttarakhand is found capable of producing PUFA.
Unification of kinetic and hydrodynamic approaches in the theory of dense gases and liquids far from equilibrium
Authors:   Lviv Polytechnic National University, Tokarchuk M. V. ,   Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine
Published: March 2023

A system of non-Markovian transport equations is obtained for the non-equilibrium one-particle distribution function of particles and the non-equilibrium average value of the density of the potential energy of the interaction of the system particles far from the equilibrium state. Expressions for entropy, the partition function of the non-equilibrium state of the system, as well as non-equilibrium thermodynamic relations were obtained. The generalized structure of transfer nuclei is revealed in detail with the selection of short-range and long-range contributions of interactions between particles. The connection of transport nuclei with generalized diffusion coefficients, friction in the space of coordinates and momentum and the potential part of the thermal conductivity coefficient is established.
The effect of cord clamping time on cord blood gas in term newborn babies delivered by cesarean section
Authors: Tanrıverdi Sema , Pelit Burak , Tekinli İbrahim
Published: March 2023

Objective: Umbilical cord clamping time is a situation that should be planned before delivery. It is recommended that the umbilical cord be clamped for at least 30–60 seconds after birth in healthy preterm and term newborns. There are few studies investigating the effect of umbilical cord clamping time on cord blood gas. If the umbilical cord is clamped before 30 seconds after birth, it is considered early clamping, and if it is clamped after 30 seconds, it is considered late clamping. In this study, we aimed to compare the early or late clamping time of the umbilical cord with the acid-base parameters and lactate values of babies. Methods: A total of 217 term newborn infants who were delivered by cesarean section between December 2020 and December 2021 in our hospital, whose umbilical cord clamping times were recorded and who had cord blood samples, were included in our study retrospectively. pH, pCO2, pO2, HCO3, BE, lactate, Hb and bilirubin values in cord blood gas samples were compared between the two groups. Results: Two hundred seventeen term newborn babies were included in the study. Cord clamping time of infants was delayed in 125 (57.6%) and early in 92 (42.4%) infants. The mean pH in cord blood gas was 7.37±0.07 (7.16–7.57), pCO2 was 39.73 ±8.97 (20.3–65.4) mmHg, pO2 was 53.42±41.95 (14.8–198) mmHg, BE was -2.18±2.90 (-11.9–13.6) mmol/L, lactate was 2.12±0.88 (0.50–5.90) mmol/L, Hb was 14.57± 2.54 (10–23.7) g/dl, and bilirubin was 1.71±1.33 (0–3.7) mg/dl. Conclusion: There was no significant relationship between early and late clamping of the umbilical cord and acid-base parameters, and hemoglobin values in cord blood gas in term newborn babies delivered by cesarean section.
Analysis of the process leading to termination of pregnancy in the third trimester
Authors: Eyisoy Ömer Gökhan , Uygur Lütfiye , Taşdemir Ümit , Özgökçe Çağdaş , Cambaztepe Büşra , Demirci Oya
Published: March 2023

Objective: To evaluate fetal anomalies and processes leading to termination of pregnancy in the third trimester. Methods: The study includes all cases who underwent termination of pregnancy after 28 weeks of gestation due to fetal anomalies between 2017 and 2022. Results: Forty four of third trimester terminations were carried out in our clinic due to fetal anomalies incompatible with life or associated with severe sequelae. Structural anomalies including 35 (79.5%) cases were the most common reason of terminations followed by chromosomal or genetic abnormalities in 8 (18.2%) cases and intrauterine cytomegalovirus infection in 1 (2.3%) case. The processes leading to the third trimester termination were evaluated by dividing 44 patients into 5 groups. (1) Delayed diagnosis due to inadequate prenatal care (25 patients, 56.8%); (2) patients diagnosed with late-onset findings (5 patients, 11.4%); (3) patients with abnormal findings in prenatal care or history but delayed diagnosis (5 patients, 11.4%); (4) patients with abnormal findings requiring further evaluation (4 patients, 9.0%); (5) patients with a definitive diagnosis but latency in the decision of family for termination of pregnancy (5 patients, 11.4%). Conclusion: Termination of pregnancy in the third trimester has an important role in countries where unfollowed pregnancies are common and access to health services is poor due to low socio-economic status.
Examination of Emotional and Spiritual Intelligence of Turkish Language Teaching Students
Authors: Demir Selvi
Published: March 2023

In the research, it was intended to examine emotional intelligence (EQ) and spiritual intelligence (SQ) of Turkish language teaching students in the context of various variables (gender, age, grade level, educational level of parents, number of books read monthly, and number of books owned). For this purpose, the current research was designed with a scanning pattern, which is one of the quantitative research methods. The sample group of the research consisted of 171 prospective teachers studying in the Turkish language teaching program at a state university in the fall semester of the 2022-2023 academic year. According to the research results, it was understood that the emotional and spiritual intelligence of Turkish language teaching students is at a high level. Additionally, statistically significant difference was found in their emotional intelligence by age, grade level, maternal education, and the number of books they have, in their spiritual intelligence, by age and grade level. Therefore, while there was no statistically significant difference on the spiritual intelligence of students according to the mother’s education and the number of books they have, there was no statistically significant difference on both types of intelligence according to gender, father’s education, and the number of books they read. The findings obtained were evaluated in the context of the relevant literature and suggestions were included.
Creating a Market for Technology through Film: Diegetic Prototypes in the Iron Man Trilogy
Authors: Spennemann Rudolf , Orthia Lindy A.
Published: March 2023

Fiction presents a version of reality that can affect an audience’s perceptions and beliefs. This effect is amplified in audio-visual media, where the medium helps convince the viewer that what they are watching is real. Scientists consulting on films have used this effect to promote their own agendas, including using what David Kirby has called ‘diegetic prototypes’ – fictional instances of not-yet realized technologies. These operate like a regular prototype, demonstrating the technology’s function, uses, and implications. They can build anticipation for, and acceptance of, emerging technologies, and can even attract funding to construct those technologies in real life. There has, however, been little scholarship to determine what makes an effective diegetic prototype. We used the Iron Man trilogy of science-fiction films to investigate this. Through a survey and focus groups we explored which futuristic technologies viewers remembered from the films, and whether they anticipated and encouraged those technologies’ development. We found that film-making concerns such as a depicted technology’s relationship to the plot or main characters, and its capacity for spectacle, were more important in fixing the prototype in the audience’s mind than the nature of the technology itself. We also found audiences anticipated and encouraged the development of technologies they saw as morally good. We recommend people wanting to use diegetic prototypes design them to have both a significant on-screen presence and to be depicted as being generally benevolent, the upsides outweighing the downsides.
Racism Issues Delivered in Lupin Film Series (2021)
Authors: Lubis Rabitah Tasya Amaliah , Puspasari Cindenia
Published: March 2023

This study discusses the issue of racism in the Lupine film series on Netflix. Lupine is a two-season series that tells the story of a shrewd thief. This story is based on a famous white people novel in France. However, the director changed the lead character in this series by using black actors. The series was popular on Netflix due to the story and how the director brought a black man as the lead character in a high-level racist country. The main point that tries to be explained in this research is how the issue of racism is distributed through an action film series. The director wants to frame racism in France. This study is a qualitative interpretive study. The data source for this study is a film series titled Lupine, which aired on Netflix in 2021. The data collection method uses documentation studies of the selected sequence. Researchers determined 14 scenes and analyzed the scenes using Charles Sanders Peirce's semiotic model with Peirce's Trichotomy: sign, object, and interpretant. This study indicates an issue of racism that the director wants to represent through scenes showing racist behavior experienced by black people in France. All settings are categorized into indicators of racism which consist of stereotypes based on race, racial discrimination, and racial violence.
CHARACTERISTICS OF COOPERATIVE WORK OF THE PEDAGOGICAL-PSYCHOLOGICAL GROUP IN THE PROCESS OF OVERCOMING ORAL-MOTOR DYSFUNCTION
Authors: Harutyunyan Zaruhi , Babayan Vanuhi
Published: March 2023

The study aimed to describe the characteristics of cooperation among the pedagogical-psychological group members while dealing with the issues of oral-motor dysfunction. The research was conducted using a qualitative methodology. A semi-structured interview method was used for data collection with speech therapists, psychologists and occupational therapists (in total 6 specialists) to highlight the features of group work cooperation in the process of overcoming oral-motor problems. The analysis of the research data was carried out based on the descriptive method.
The results of the research proved that during oral-motor dysfunction, the implementation of joint and mutually agreed activities, preliminary discussions of rehabilitation intervention planning and the ways of its implementation, and synchronizing the main approaches used by different professionals were important prerequisites for the cooperative work among the pedagogical-psychological group members. In addition, the desire of specialists to collaborate, the need to use complementary approaches and the planning of systematic group work discussions also determined the effectiveness of the rehabilitation process and ensured a positive result.
The AliveCor KardiaMobile ECG device allows electrocardiogram assessment in awake bonobos (Pan paniscus)
Authors: Olds June E. , Goldacker Ashley , Huneycutt David , Huneycutt Sarah P. , Taglialatela Jared P. , Ward Jessica L.
Published: March 2023

OBJECTIVE

To determine the diagnostic utility of a smartphone-based ECG device (Alivecor KardiaMobile) in awake bonobos (Pan paniscus).

ANIMALS

7 adult bonobos in human care.

PROCEDURES

Bonobos were trained with positive reinforcement to hold 1 finger from each hand onto the KardiaMobile sensors for 30 seconds to obtain an ECG reading. Ten ECG tracings were recorded from each bonobo and evaluated by a veterinarian, a veterinary cardiologist, and a human cardiologist for tracing quality, tracing length, heart rate, identification of P-waves, and presence and quantification of premature ventricular or atrial contractions.

RESULTS

6 of the 7 bonobos were trained within 21 weeks to allow the collection of 10 diagnostic quality ECG tracings. The average heart rate recorded was 87 bpm (range = 60 to 118 bpm). Potential abnormalities identified by the KardiaMobile included premature ventricular contractions in 2 male bonobos and 1 premature atrial contraction in another male. There was strong agreement by reviewers in all ECG parameters except for the identification of P-waves.

CLINICAL RELEVANCE

The Alivecor KardiaMobile device has diagnostic utility as a screening tool for use in bonobos in human care. The training was accomplished to yield diagnostic ECG readings of acceptable duration in awake bonobos. Given the prevalence of cardiovascular disease in great apes, this technology may identify a subset of great apes who may benefit from early intervention and treatment in an effort to delay the progression of cardiac disease.
Market Analysis of Drones for Civil Use
Authors: Höhrová Paula , Soviar Jakub , Sroka Włodzimierz
Published: March 2023

This paper deals with the topic of market analysis of drones (or UAVs) for civil use. This is an analytical overview study. In the introduction, we offer an overview of the main historical milestones on the topic of drones. We then provide a classification and explanation of the main types of drones. The main part of the article contains structured information about the drone market, its status in terms of market shares and relative market shares. For a structured view of this market, we used the BCG method: we calculated the market growth and relative market shares. This market is dynamic and growing gradually. Established brands forming a strong competitive environment. In the photo-video segment, the Chinese brand DJI has a strong and dominant position. Demand on the consumer side is also growing, as is the reputation of the most used product brands.
THE DISOURSE OF GLORIFYING WATER IN THE BALINESE SCRIPTUAL TRADITION TO SUPPORT THE AGRICUTURAL CULTURE AS THE IMPLEMENTATION OF “NANGUN SAD KRTI LOKA BALI”
Authors: Suardiana I Wayan
Published: March 2023

This current study is intended to investigate the importance of glorifying water especially in agriculture as explicitly mentioned in the Balinese traditional texts. The data used in the study is the qualitative data obtained using the library research method and the observation, translating, and note-taking techniques. The data was analyzed using the descriptive-analytic method and the inductive technique. The data analysis is presented using the informal method and the narrative technique. The results of analysis show that the glorification of water, as one of the important components of the farming life in Bali, has been explicitly mentioned in the traditional texts. The sustainability and cleanliness of water, as an important component of the life of the living creatures on earth should be maintained. To this end, it is firmly mentioned in the texts of Manawa Dharma?astra, Canakya Nitisastra, Artha ??stra, dan ?arasamuccaya that it is important to make every attempt to maintain the sustainability of water to allow life to last forever. The objective fact in the field shows that the quality of the water used for irrigating the wet rice fields is inadequate as it has been polluted by different types of wastes.

Keywords: water, irrigation, strong ideology, polluted
Characteristics of Peel-off Gel Mask Formulated from Jicama (Pachyhizus erosus)
Authors: Thanh Nguyen Nguyen Ngoc , Asben Alfi , Syukri Daimon
Published: March 2023

Food loss is a worldwide concern, especially the losses from the fresh tubers because of their quick rottenness during post-harvest without proper preservation. Meanwhile, the tuber is an excellent source of carbohydrates that can be used in a broad range of food and other industries. Therefore, creating added-value products from crops has been considered an intriguing idea for decades in order to reduce this matter and also can utilize raw materials from agriculture. This research aimed to determine and evaluate the effects of starch addition from Jicama on the characteristic of peel-off gel masks. Five different formulations were made with increased starch concentration at 1%, 2%, 3%, and 4%, and a control sample was formulated without adding starch. Organoleptic, spreadability, homogeneity, irritation, viscosity, pH, peeling time, and antibacterial and antioxidant activity were parameters in evaluating gel formulations. The best formula showed a homogenous consistency, there was no irritating reaction, and it had the highest sensory point from the panellist. The acidic degree and viscosity were 5.53 and 32867 cPs, respectively, which adhered to the Indonesian National Standard (SNI 2007) for facial skin products; the gel had good spreadability, and the peeling time was less than 30 minutes. Moreover, the gel presented an active antibacterial activity against Staphylococcus aureus; and antioxidant activity. According to the results, Jicama is recommended for application in making good quality peel-off gel mask products at 4% concentration.
Listening inside the trees: A novel and simple method to find active nest of stingless bees (Hymenoptera: Apidae, Meliponini) in Dry Chaco forests
Authors: ZELAYA Patricia , ARIAS Ángeles , BRANDÁN Cyntia , MOLINERI Carlos , BRAVO Sandra
Published: March 2023

Forests are essential for human wellbeing since they provide multiple goods and services (of regulation, provision, cultural) that benefit human health. Insect pollinators represent one of the most important components of forest diversity because they have a significant role both in the plant species biodiversity conservation and agricultural production. In a multiannual monitoring of Meliponini wild colonies in a Dry Chaco forest, we have used a simple method to find colonies inside trees, even when conditions prevented foraging-activity of bees (cold, extreme heat). We briefly describe this method here and discuss its utility for ecologists and peasant communities.
Comparison of Stemming Test Results of Tala Algorithms with Nazief Adriani in Abstract Documents and National News
Authors: Pamungkas Natalinda , Udayanti Erika Devi , Indriyono Bonifacius Vicky , Mahmud Wildan , Mintorini Ery , Wahyu Dorroty Arika Norma , Quamila Putri Sanina
Published: March 2023

The existence of information is undeniably needed by many people. This statement describes the increasing importance of information and the corresponding increase in the need for access to relevant documents and literature. The contents of the information derived from these documents are then sorted to make their meaning more understandable. This sorting process is known as stemming. Stemming is a process that is widely applied in basic word searches. Separating meaningless words can make information clearer. It is necessary to pay attention to the appropriate stemming algorithm according to the language used. Many stemming algorithms can be used to perform this basic word search process. Some of them are the Tala and Nazief Adriani algorithms. The two algorithms have differences in their work processes. The Tala algorithm adopts a rule-based Porter algorithm, while the Nazief & Adriani algorithm works based on a dictionary. The two algorithms have their respective advantages in terms of accuracy and speed. Therefore, in this study, an analysis will be carried out by comparing the performance of the two algorithms in the Indonesian language text-stemming process. The trial process uses several different data sources to measure the speed and accuracy of each algorithm. Data sources used in this study included abstracts of student thesis reports or final assignments of 30 students and information from online news as many as 200. From the results of the tests that have been carried out, it can be concluded that the Tala stemming algorithm has a lower accuracy level than Nazief Adriani. The Tala algorithm only has an average accuracy of 65.29%, while Nazief Adriani has an accuracy of 78.47%. Regarding speed, the Tala algorithm has a better speed than Nazief Adriani at 32.19 seconds and Nazief & Adriani at 65.2 seconds.
Measurement of Skin Friction in the University of Texas at Arlington Arcjet
Authors: Raybon Ian , Viganò Davide , Maddalena Luca , Meritt Ryan J. , Molinaro Nicholas J.
Published: March 2023

Arcjet flows are known to have significant uncertainties associated with the fundamental flow quantities. A detailed characterization is critical to augment the current understanding of these complex flows as well as developing, screening, and qualifying thermal protection systems. Classically, estimations of skin friction have been made indirectly using heat flux analogies. These techniques, however, are marred by high levels of measurement uncertainty and require a priori assumptions about the flowfield. Directly measuring the wall shear stress removes the demand for these assumptions. A direct measurement of shear stress in supersonic high-enthalpy flow at the Office of Naval Research/University of Texas at Arlington arcjet facility has been conducted. The measured wall shear stress was [Formula: see text] (average combined calibration uncertainty), which matches well with estimations for laminar flow. Two shear stress sensors separated by a distance of 1.905 cm (0.75 in.) were integrated into a 20 deg half-angle shear-wedge platform. The two sensors tracked together within 10% of each other, implying a uniform flowfield over the region studied. Approximately 1.5 s into the test window, a steady increase in skin friction was observed. The cause of this nonphysically accurate increase in the shear stress measurement is discussed.
Flight-Test Determination of Longitudinal Stability Using System Identification
Authors: Dias Joaquim N.
Published: March 2023

In the present work, system identification methods were applied to the flight data from dynamic maneuvers in order to obtain an aerodynamic model of the longitudinal dynamics of a propeller-driven aircraft, including a model for the elevator hinge moment. As a result, the model allowed numerical computation of elevator deflections and stick forces required to trim the aircraft at different flight conditions, including variations of the center-of-gravity location. From these results, the stick-fixed and stick-free neutral points were computed. When compared to a conventional flight-test technique, the new method provided similar mean values for the neutral point location and reduced the associated uncertainty by about 50%. The data collected for system identification required only a fraction of the flight time used in conventional techniques. Moreover, the aerodynamic modeling revealed nonstandard dependencies, such as the linear influence of the airspeed and thrust coefficients on the aerodynamic coefficients. Therefore, propeller slipstream effects were automatically embedded into the neutral point results obtained.
Vacuum and Hover Tests of a Dihedral–Anhedral Tip Composite Rotor
Authors: Chi Cheng , Datta Anubhav , Panda Brahmananda
Published: March 2023

This paper presents test data from vacuum and hover tests of a 2.8-ft-radius dihedral–anhedral tip composite rotor. The paper describes the blades, their fabrication, properties, instrumentation, the test conditions, and the data acquired. The blades were Mach-scaled to a generic but representative modern rotor. Vacuum chamber tests measured rotating frequencies and strains. Hover tests measured performance, blade loads, pitch-link loads, and strains under steady and cyclic loading conditions. Three-dimensional finite element structural models were developed to ensure completeness and consistency of property definition. The three-dimensional analysis was also used for a preliminary assessment of the test data. The test data revealed that the dihedral–anhedral tip influences the torsional and higher frequencies of a rotor blade significantly. The oscillatory blade loads show patterns consistent with the vertical center-of-gravity offset introduced by the tip. The surface strains reveal interesting higher-harmonic patterns of loading particularly near the dihedral junction.
Movilidad turística entre expectativas, incertidumbres y encuentros. Retrato de un verano pandémico en un pueblo de las Sierras de Córdoba, Argentina
Authors:   Universidad Nacional de Córdoba (Argentina), Trimano Luciana , Abrantes Lucia de ,   Universidad Nacional de San Martín (Argentina)
Published: March 2023

This research analyses “tourist mobility” in the context of the health crisis of COVID‑19 to unravel the meanings that situated actors produce about this practice at an exceptional moment in history. Based on an ethnographic case, the archetype of the Argentine tourist corridor, this article portrays the 2020‑2021 holiday season, investigating the experiences of tourists and permanent residents who received seasonal displacements in their territories. From here, it was possible to recover a series of transformations that allow us to understand how the pandemic disrupted the meanings associated with “summer culture” and its counterpoint, “the local tour‑ ist season”; all this with the purpose of outlining triggering hypotheses about the traces that this atypical season may have left on tourism practice.
All that illuminates on radionuclide imaging is not a metastatic lesion: Role of complementary imaging
Authors: Bonab Hossein Abdolmohammadpour , Iyengar Karthikeyan , Hegde Ganesh , Botchu Rajesh
Published: March 2023

Radionuclide imaging is a non-invasive modality based on tracer physiology widely utilized in the diagnosis, staging, therapeutic evaluation, and monitoring of metastatic disease in a spectrum of malignancies. Calcific tendinopathy is a well-recognized disorder related to the deposition of calcium hydroxyapatite crystals within tendons. We describe a patient with urothelial carcinoma of the bladder revealing increased uptake at the left hip on 99mTc labeled methylene diphosphonate scintigraphy suggesting a metastatic lesion. Cross-sectional imaging with magnetic resonance imaging confirmed the accurate diagnosis of calcific tendinopathy of gluteus maximus insertion. This case report highlights the importance of a thorough clinical evaluation and complementary imaging in assessing benign pathologies which may mimic metastatic bone lesions.
Efficacy of repeat arterial spin labeling for angiogram-negative ruptured micro-arteriovenous malformation: A case report
Authors: Kochi Ryuzaburo , Suzuki Yasuhiro , Yamazaki Hiroshi , Aikawa Takashi , Endo Hidenori , Tominaga Teiji
Published: March 2023

Background:

Diagnosing ruptured micro-arteriovenous malformation (AVM) could be difficult using digital subtraction angiography (DSA) in the acute stage, and a repeat DSA is recommended in DSA-negative cases. Arterial spin labeling (ASL) is a useful noninvasive tool for detecting AVM, but the efficacy of a repeat ASL for DSA and ASL-negative ruptured micro-AVM in the acute stage is unclear. Here, we report a case of ruptured micro-AVM that was not detected in the acute stage by ASL but in the chronic stage by ASL.

Case Description:

A 43-year-old man developed right upper-extremity paralysis, and computed tomography (CT) revealed a left frontal lobe hemorrhage. Magnetic resonance imaging, including ASL, CT angiography, and DSA, showed no abnormal findings associated with hemorrhage in the acute stage. The second ASL 93 days after the hemorrhage showed a high signal on the cortical vein of the left frontal lobe and superior sagittal sinus, and subsequent DSA detected a micro-AVM in the left precentral gyrus.

Conclusion:

Repeat ASL is less invasive and useful for detecting micro-AVMs which showed no findings on ASL and DSA in the acute stage.
ФОРМИРОВАНИЕ СТРУКТУРЫ НАПЛАВЛЕННЫХ ОБРАЗЦОВ В РАЗЛИЧНЫХ ВНЕШНИХ УСЛОВИЯХ ИЗ АУСТЕНИТНОЙ СТАЛИ
Authors: Чинахов Д.А. , Акимов К.О.
Published: March 2023

В работе исследовано влияние формирующих ограничителей (полозьев) на структуру и твердость образов из нержавеющей стали AISI308LSi, полученных послойной электродуговой наплавкой в среде аргона. При экспериментальной наплавке образцов с использованием графитовых ограничителей наблюдается более равномерный рост элементов структуры, без резких переходов между наплавленными слоями, в отличие от двух других типов образцов. Анализ результатов измерения твердости все трех видов образцов показал, что наибольшие значения наблюдаются у образца, полученного с использованием графитовых полозьев, за счет более активной диффузии δ-феррита в аустенит в среднем на 12 %, по сравнению с исследуемыми образцами, несмотря на общий рост размеров дендритов.
Challenges related to determining for VAT purposes the status of the goods and services provider using the platform economy
Authors: Rogowska-Rajda Beata , Tratkiewicz Tomasz
Published: March 2023

Background: The aim of the study was to analyse EU legislation and case law on the VAT status of the provider of goods and services for the platform economy. This issue is becoming increasingly important in the context of a rapidly developing platform economy, using the latest technological developments. The study conducted a comprehensive legal analysis of the issue, at the same time drawing attention to the doubts that exist particularly due to the lack of CJEU judgments on the concept of a taxable person in the platform economy.

Research purpose: The aim of the study was not only to assess the relevant legislation or its interpretation, but above all to draw attention to the need to fill the legislative gap in the area studied, which has led, and may continue to lead, to non-uniform application of VAT rules in the EU Member States.

Methods: The study was carried out predominantly using the empirical-dogmatic method, backed by a historical method and comparative method.

Conclusions: Our analysis demonstrated that the provisions of the VAT Directive do not simply and clearly regulate whether a platform provider is a taxable person. There is also a lack of CJEU jurisprudence addressing this issue; judgments on the ‘traditional’ economy do not seem to ‘fit’ the specifics of the platform economy. In our opinion, legislative changes are needed, especially the VAT Directive, which would take into account the specifics of transactions in the platform economy. We present preliminary proposals that can be taken into account in the legislative work on the European Commission’s recently proposed provisions in this area.
Vylys Tom 2 – A Multilayered Archaeological Site in the Valley of the Izhma River
Authors: Volokitin A. V. ,   Literature and History of FRC Komi Science Centre, UB RAS, Volokitina N. A. ,   Literature and History of FRC Komi Science Centre, UB RAS
Published: March 2023

The first multilayered clearly stratified site Vylys Tom 2 was studied in the valley of the Izhma River, the largest left tributary of the Pechora River (north of the East European Plain). Cultural remains are located in the sediments of the terrace’s promontory, which is 10 m high. The site is discovered in 2003; excavations were done in 2010–2011, 2015, 2017. Four cultural layers are distinguished. The first cultural layer is placed in contemporary forest soil. Badly preserved fragments of ceramic vessels are found in this layer. Nevertheless, typical peculiarities of their forms and ornament allow to date this layer to the end of Ananyino culture of Early Iron Age (VI–III century BC). The second cultural layer is placed in brown loam at 0.3–0.5 m depth from contemporary day surface. Flint artifacts are not numerous. Heat treatment of flint, thin bifaces production, and large burins are typical for the Neolithic with pit-comb ceramics. The third and fourth cultural layers are placed in thin humus sandy loam of alluvial soil strata and found at >2 m depth from contemporary day surface. It is low floodplain alluvium with a high sedimentation rate. The third layer has been dated to 7720±100 BP (GIN-15331), 7800±90 BP (GIN-14593), 8510±70 BP (LU-7289), and 8685±30 BP (IGANams-5991), while the obtained dates for the fourth layer are 8540±70 BP (GIN-14594), 8690±90 BP (LU-7288), and 8700±30 BP (IGANams-5992). The high rate of accumulation of sediments shows that the dates 7720±100 and 7800±90 BP from the third cultural layer are rejuvenated. And there is about 10 years between the existence of camp sites of the third and fourth layers. In these layers, fireplaces, traces of ocher, faunal remains, and stone products are noted, including a set of peckingabrasive stone tools for processing bone, and flakes from large slate polished tools (third layer), as well as large points, cores (including core-burins), polished axes and their fragments (fourth layer). We distinguish similarity the inventories of the third and fourth cultural layers. The used raw materials show the presence of shale and epidosite in both layers. The presence of ocher, the location of the hearths one above the other also confirm the short time interval between the existence of the Mesolithic sites of the third and fourth layers. Some similarities in the stone industry of the Mesolithic layers from the site of Vylys Tom 2 and the sites of Parch Mesolithic culture speak of their interrelations.
Evolution in the Spanish Primary Education Autonomic Curricula and Textbooks. A Geographic Analysis
Authors: Mª Arritokieta Ortuzar-Iragorri , Zamalloa Teresa
Published: March 2023

Evolution by natural selection is a theory that constitutes a powerful paradigm capable of conveying the teaching-learning of multiple concepts in biology. However, it has been controversial from its formulation to the present, which also affects education. For instance, while some of the basic curricula of primary education in Europe are arranged around the concepts that are considered necessary for structuring the scientific model of evolution (i.e., Sweden), other curricula do not contemplate such concepts. The last is the case of the basic curriculum of primary education in Spain. However, in Spain, on the basis of such a curriculum, there are 17 different primary education curricula corresponding to each of the autonomous communities of the state. The objective of this work is to state a detailed geographical picture of the presence of the concepts necessary to articulate the model of evolution through the analysis of the autonomic curricula of Spain. With such an aim, words that represent such concepts (evolution, inheritance, selection, adaptation and biodiversity, etc.) have been searched for in the natural sciences and social sciences areas of the autonomous curricula of primary education. Furthermore, a search for such evolution-related concepts has also been performed in the activities of eighteen Spanish primary education textbooks on natural and social science subjects. For this purpose, two aspects were considered: characterisation and scientific skills. Both the autonomous curricula of primary education and the textbooks hold important gaps when addressing evolution. The texts include activities that prioritise basic cognitive skills over the more demanding ones associated with scientific competence.
THE PRINCIPLE OF THE BEST INTERESTS IMPLEMENTATION OF THE CHILD IN A DECISION TO CANCEL A CHILD'S BIRTH CERTIFICATE
Authors: Mustika Rizky , Dharsana I Made Pria
Published: March 2023

This research aims to provide an understanding of the determination to cancel a child's birth certificate that can potentially violate children's human rights. So that the role of judges as a judicial institution is needed to protect children's rights as it should. Marriage registration is merely an administrative action and does not affect the validity of the marriage. Errors in marriage registration should not necessarily affect the status of the child's position. Because after all, birth certificates are issued by the state to protect and provide legal certainty over the child's status. This research used a typology of research with a prescriptive form and then normative juridical research methods with secondary data derived from laws and regulations relating to child protection. In conclusion, legal action to cancel a child's birth certificate due to legal defects in a marriage can be said to be an action that is contrary to the principle of the best interests of the child, therefore it is fitting that the application for annulment of a child's birth certificate be properly considered by the panel of judges who act as an extension of the state in the judicial field.
A discussion of stronger public policies to protect and promote healthy diets: what can the U.S. learn from other countries?
Authors: Mialon Mélissa , Naik Ashka
Published: March 2023

The aim of this paper is to contribute to global discussion on public health policies for protecting and promoting healthy diets, as it is advancing in the U.S. This discussion assesses specific cases of successful policy making from several countries across the world, often against industry resistance. We discuss five key public policies and interventions: i) food labeling; ii) marketing restrictions and healthy school food policies; iii) fiscal policies; iv)  models for classifying the (un)healthiness of a product; v) interventions to address food industry influence and conflicts of interest in public health policy. The paper also argues how the U.S can adapt or adopt some of these public policies, while also preparing for the challenges from the ultra-processed food industry that may perceive these advances as threats to its business. We conclude the discussion by postulating that the U.S. is primed to advance several of these initiatives that have already been espoused in law and evaluated to be effective in other countries. The U.S. will have unique challenges, as many of the food industry actors have deep political influence on American politics and markets, although these global lessons can enable the legislative, policy, and civil society ecosystems with additional tools and strategies to progress policy movement toward defending people’s health and wellbeing over industry’s influence and profit.
Breast cancer diagnostic delays in pakistan: a looming epidemic threat
Authors: Mashal Shoukat
Published: March 2023

Breast cancer is a major contributing factor to the mortality and morbidity burden among the female population in Asia. In 2020, a total of 1.2 million newly diagnosed breast cancer cases and an estimated 3.5 million deaths due to breast cancer were reported in Asia (International Agency for Research on Cancer, 2020a). In particular, Pakistan notably reported the highest proportion of breast cancer cases in Asia. Research estimates that one out of nine women in Pakistan is at a high risk of suffering from breast cancer in their lifetime. The constant growth in breast cancer rates in Pakistan indicates that breast cancer is rapidly reaching epidemic proportions and poses an urgent challenge to Pakistan's public health system. Due to system-level and patient-level delay factors, Pakistani women often seek medical care for breast carcinoma at an advanced stage of the disease, whereby survival chances are minimal. The key to mitigating the breast cancer burden in Pakistan is to foster early detection programs among Pakistani women. This review aims to examine the root causes of delayed detection of breast cancer in Pakistani women, emphasize the pivotal role of early detection in individuals' and populations' health promotion, and highlight nursing implications in promoting breast cancer early detection programs. A comprehensive literature search was conducted in databases including CINAHL, Google Scholar, and Scopus. The review consists of articles from 2005 to 2020 published in the English language only. Furthermore, the study also highlights the need for context-specific and culturally sensitive early breast cancer detection programs to potentially reduce barriers in the uptake of screening services among Pakistani women.
Women and widow's health
Authors: Meena Ganapathy
Published: March 2023

"Health is Wealth" is a famous saying, and every adult human being knows this. In spite of this common knowledge, women generally neglect their physical, psychological, social, financial, and spiritual health, and this is a fact. Women biologically take on the career role, and this role is additionally reinforced by society for its smooth continuation. However, due to this one-sided role which is not supported by their families, it becomes a burden when women generally lack time for self-care. More so, they become vulnerable when they become widows because their social identity and family support are reduced. It is essential for every woman to understand this lopsided issue and make adequate time for self-care. This paper delves into the health of women and widows.
Biaxial column design using visual basic 6.0
Authors: A. Vinod Kumar , Syed Afzal Basha , C. Bala Hussainy , S. Akhil Tej , C. G. Mohan Babu
Published: March 2023

Computers have been playing an important role in Civil engineering discipline. The aid of programming languages is unfathomable in designing the Civil engineering structures like buildings, hydraulic structures etc. In this paper, the design of biaxial rectangular or square column is performed for three different columns for different ultimate loading and ultimate moments by an educational software written in Visual Basic (VB) 6.0. The user interface of this software gives results of percentage of minimum steel, area of the steel and orientation of steel bars in bi-axial column. The students expressed their improvement after introducing this robust software. The understanding level of subject by students is analyzed before and after using this software is presented in this paper.