Miracle-dz/UniFAR-FTUs huggingface dataset:
Flora visited by Melipona mondury Smith 1863 (Hymenoptera: Apidae: Meliponini) in a fragment of the Atlantic Forest in the state of Bahia, Brazil

Abstract Tropical forests encompass a high diversity of plant species that depend on several pollinator bees, such as Melipona mondury. In the present study, we identified the pollen types in samples of honey, pollen (nest pots) and pollen baskets of M. mondury workers from a meliponary located in the Atlantic Forest of the state of Bahia, north-eastern Brazil. Samples of flowering plants were also collected monthly nearby the meliponary and from trails along the fragment borders. The botanic material was identified and stored as herbarium collections. The samples of honey and pollen from colonies of M. mondury were collected and prepared using the acetolysis method for palynological studies. Using the botanical inventory around the meliponary, palynological slides were prepared and pollen characterised from 43 genera and 46 species within 24 plant families. Asteraceae (23%), Fabaceae (14%), Anacardiaceae (5%), Myrtaceae (5%), and Melastomataceae (4%) were the most common and diverse families around the meliponary. A total of 44 and 54 pollen morphotypes were found in honey and pollen samples, respectively, comprising several plant families, particularly Myrtaceae (15%) and Melastomataceae (10%). The pollen baskets of workers contained 35 pollen morphotypes, with a predominance of Fabaceae-Mimosoideae (16%), Melastomataceae (13%), Sapindaceae (13%), Myrtaceae (10%) and Solanaceae (10%). The flora of the study area proved to be highly diverse and M. mondury utilises a wide variety of plants, albeit with some differences. The conservation of the Atlantic Forest fragments is essential to the maintenance of pollinators such as M. mondury to assure the functionality of local ecosystems.
Heavy Metals and their Effects on Macroinvertebrates Present in the Ojo River, Lagos, Nigeria

Aim: To provide information regarding the presence of heavy metals in the tissues of crab (Potamon fluviatile), prawn (Macrobrachium rosenbergii), and crayfish (Metanephrops australiensis) obtained from the Ojo river of Lagos State, Nigeria. Study Design: Commercially sold marine crustacean samples (crab, prawn, and crayfish) obtained from the Ojo river of Lagos, Nigeria, were assessed for the presence of heavy metals, and also the potential health risks for local consumers. Place and Duration of Study: Ojo river, located close to Ojo local government secretariat, Ojo, Lagos State, Nigeria. Methodology: Live samples of macroinvertebrates such as Metanephrops australiensis, Potamon fluviatile, and Macrobrachium rosenbergii were purchased from the fishermen at the riverside in Ojo and immediately transferred to the laboratory. The samples were oven-dried and ground into a fine powder, then subjected to sample digestion and finally atomic absorption spectrophotometer (AAS), to obtain the various heavy metal concentrations present in each sample. Results: The result indicated variations in the metal body load among species. All the metals were below the FAO/WHO permissible limit for food consumption except for Cd in crayfish which was slightly beyond the set limit. The highest concentration examined were found in crayfish, followed by crab and prawn. Zinc and iron were of higher concentrations in the tissues of the macroinvertebrates while lead was the least concentrated metal present only in the tissues of crayfish and absent in the tissues of both crab and prawn. Conclusion: The human health risk evaluation for the marine organisms indicated that both the crab and the prawn samples examined were safe for consumption, while crayfish may not be considered safe for consumption. Also, the potential health risk from consuming seafood exposed to these metals should not be ignored.
Statistical Characteristics and Security Analysis over Multi-Cascade κ-μ Shadowed Channels

In this paper, the statistical characteristics of the multi-cascade κ-μ shadowed fading channels are investigated and analyzed under the classic Wyner’s eavesdropping model. In particular, the general accurate expressions of the probability density function and the cumulative distribution function for amplitude and signal-to-noise ratio (SNR) are derived for the first time. Moreover, we further utilize the two performance evaluation metrics including outage probability and intercept probability to investigate the impacts of cascade number and channel parameters on reliability and security. Finally, the theoretical results are consistent with the simulations, proving the correctness of the derivation. The interesting conclusion is that when the average SNR is greater than 2 dB, the reliability of the multi-cascade model will decrease as the number of cascade increases; on the contrary, more cascading can lead to stronger anti-eavesdropping ability.
A Scent of Peppermint - A Microwave Spectroscopy Analysis on the Composition of Peppermint Oil

Essential oils have a vast number of applications in different areas of our daily life. Detailed chiral analysis and structural characterization of their constituents remains an important subject in analytical chemistry. Here, we report on a broadband rotational spectroscopy study of peppermint oil in the frequency range 2–8 GHz. We focus on an unambiguous determination of the excess enantiomers of the oil constituents menthone and isomenthone in the oil by applying chirality-sensitive rotational spectroscopy, the so-called microwave three-wave mixing (M3WM) technique. Additionally, a new menthol conformer, not previously characterized, was experimentally observed, and the gas-phase structures of the two conformers of menthol and menthone were determined experimentally based on the assignment of their 13C-isotopologues in natural abundance.
Recent Developments in Biomaterial-Based Hydrogel as the Delivery System for Repairing Endometrial Injury

Endometrial injury caused by intrauterine surgery often leads to pathophysiological changes in the intrauterine environment, resulting in infertility in women of childbearing age. However, clinical treatment strategies, especially for moderate to severe injuries, often fail to provide satisfactory therapeutic effects and pregnancy outcomes. With the development of reproductive medicine and materials engineering, researchers have developed bioactive hydrogel materials, which can be used as a physical anti-adhesion barrier alone or as functional delivery systems for intrauterine injury treatment by loading stem cells or various active substances. Studies have demonstrated that the biomaterial-based hydrogel delivery system can provide sufficient mechanical support and improve the intrauterine microenvironment, enhance the delivery efficiency of therapeutic agents, prolong intrauterine retention time, and perform efficiently targeted repair compared with ordinary drug therapy or stem cell therapy. It shows the promising application prospects of the hydrogel delivery system in reproductive medicine. Herein, we review the recent advances in endometrial repair methods, focusing on the current application status of biomaterial-based hydrogel delivery systems in intrauterine injury repair, including preparation principles, therapeutic efficacy, repair mechanisms, and current limitations and development perspectives.
THE POTENTIAL USE OF SOME MEMBERS BELONG TO APIACEAE AND ASTERACEAE PLANT FAMILY AS IMMUNE BOOSTERS IN LIVESTOCK PRODUCTION

This review was conducted based on two plant families, which are Apiaceae and Asteraceae, to study on their action as immune boosters in livestock production. The review demonstrated the capabilities of plants belong to these two families to improve health of livestock and immune functions as well as reducing the risks of different animal diseases. These plant family groups are collected based on their effects on the mechanisms that affect the immune system of animal which are antioxidant, anti-inflammatory, and antimicrobial activities. Further studies can be conducted on these plant species by identifying their ability and capability to be developed into a new drug or to be used as a medicinal plant in treating immune-mediated diseases in livestock.
The English as a Foreign Language Learners’ Psychological and Emotional Perceptions on Technology Integration in Language Classrooms

Recently, the use of new educational technologies in language teaching development is expanding rapidly. Educational technologies attach new features to the learning environments. The integration of educational technologies in language teaching has been received special attention among language researchers. In so doing, the present study investigated language learners’ perceptions of the integration of innovative educational technologies in their language classrooms. The sample comprised 301 English as a foreign language (EFL) students with different academic qualifications from Shaanxi Province (299) and other provinces (Fujian province = 1, Sichuan province = 1) in China. To gather the necessary data, the researcher conducted a technology integration questionnaire and a focus group interview. The results of obtained data demonstrated that the language learners had positive attitudes toward using technology in their classrooms. However, the findings of the interviews indicated that learners had some problems such as lack of technology literacy and inadequate assess to facilities in participating in technology-based classroom activities.
Impact of Depuration Plants on Nutrient Levels in the North Adriatic Sea

Macronutrients (nitrogen—N; phosphorus—P; silicon—Si) play a crucial role in ocean surface waters stimulating the planktonic primary production; in fact, their concentrations are fundamental for the evaluation of the trophic status of the water body and eutrophication phenomena. Loads of nutrients into the sea are mainly represented by river runoff and depuration plant outflows. For this purpose, in the framework of the AdSWiM project, “Managed use of treated urban wastewater for the quality of the Adriatic Sea” levels of N-NO3, N-NO2, N-NH4, Si-Si(OH)4, P-PO4 (dissolved inorganic phosphorus—DIP) and total dissolved phosphorus (TDP) were determined colorimetrically at two sites in the Gulf of Trieste: Lignano Sabbiadoro and San Giorgio di Nogaro. For each site, during the bathing seasons of 2019 and 2020, a sample from the depuration plant (DP) outflow and another one in the bottom seawater near the discharging pipelines were collected. Results showed a strong dilution effect on nutrient levels passing from DPs to the sea, from one to three orders of magnitude and a low and not harmful concentration in seawater. The outflow composition of the two DPs showed that the main fraction of dissolved inorganic nitrogen (DIN) was represented by N-NO3 for Lignano, while in San Giorgio the major contribution came from N-NH4. Concerning phosphorus, Lignano showed a higher content (about 3 times) of P levels than San Giorgio, but a similar percentage composition, DIP:DOP (77:23), compared to the seawater site one DIP:DOP (2:98). Despite the difference between the DPs, no substantial differences were found in the sea sites, demonstrating the negligible effect of the DP outflows in the nutrient levels in the study area.
Why and when job insecurity hinders employees’ taking charge behavior: The role of flexibility and work-based self-esteem

Job insecurity is negatively associated with employees’ extra-role behavior. Studies of this negative impact often use a social exchange or stress–strain perspective to explain how job insecurity impairs employees’ extra-role behavior. This study offers an alternative account. Based on a conservation of resources perspective, the authors propose that job insecurity denotes a threat of loss of resources, which will motivate individuals to focus on how to protect what they have and reduce further loss. Such conservation of resources will limit one’s flexibility, or the ability to consider alternatives and change a course of action in response to environmental changes, and thus undermine employees’ extra-role behavior for pursuing constructive changes at work (i.e., taking charge). The authors also propose that the impact of job insecurity on flexibility can be more detrimental to employees higher in work-based self-esteem (i.e., domain-specific self-esteem) due to the experience of self-concept dissonance. The results, obtained from 188 employees in 19 teams of a manufacturing company, supported the hypotheses, while mechanisms suggested by a social exchange perspective (i.e., felt obligation to organizations) and a stress–strain perspective (i.e., vigor) were taken into account. This investigation extends understanding of how and why job insecurity influences employees’ work behavior, as well as who is most vulnerable to job insecurity.
xNet: Improving Expressiveness and Granularity for Network Modeling with Graph Neural Networks

Today’s network is notorious for its complexity and uncertainty. Network operators often rely on network models to achieve efficient network planning, operation, and optimization. The network model is responsible for understanding the complex relationships between the network performance metrics (e.g., latency) and the network characteristics (e.g., traffic). However, we still lack a systematic approach to developing accurate and lightweight network models that are aware of the impact of network configurations (i.e., expressiveness) and provide fine-grained flow-level temporal predictions (i.e., granularity). In this paper, we propose xNet, a data-driven network modeling framework based on graph neural networks (GNN). Unlike the previous proposals, xNet is not a dedicated network model designed for specific network scenarios with constraint considerations. On the contrary, xNet provides a general approach to modeling the network characteristics of concern with relation graph representations and configurable GNN blocks. xNet learns the state transition function between time steps and rolls it out to obtain the full fine-grained prediction trajectory. We implement and instantiate xNet with three use cases. The experiment results show that xNet can accurately predict different performance metrics while achieving over two orders of magnitude of speedup compared with the conventional packet-level simulator.
Multi Response Optimization of Face Milling Parameters Using Gray Relation Analysis

This work introduces the application of gray relation analysis as a multi optimization method in optimizing the machining parameters of face milling for hybrid Al-Si/Al 2 O 3 /MWCNTs nanocomposites. The conventional vertical milling machine was used to carry out the experiments based on Taguchi orthogonal L27 array. Spindle speed, feed rate and depth of cut were considered as machining parameters. Surface roughness and flatness error were selected as a process response. The effect of various machining parameters was analyzed and the optimum combination of their levels were determined using both S/N ratio and ANOVA for gray relation grade. The results of this work showed that, the most significant parameter on multi-response was feed rate with contribution 26.34% followed by depth of cut with 19.99%. Also, the optimal levels of machining parameters are determined.
Level of Late Initiation of Antenatal Care Visit and Associated Factors Amongst Antenatal Care Attendant Mothers in Gedo General Hospital, West Shoa Zone, Oromia Region, Ethiopia

Background Antenatal care is a care given for pregnant women and is taken as a key maternal care service in improving and keeping health of both life outcomes for mothers and newborns. Countries with low antenatal care coverage are the countries with very high maternal mortality ratios. Objective Hence, The aim of this study was to determine the level of late initiation of antenatal care visit and associated factors amongst antenatal care follow up in Antenatal care (ANC) services at Gedo General Hospital, Western Oromia Region, Ethiopia, 2021 Methodology A health facility based cross-sectional study design was conducted from July 10–30, 2021 using primary data review and face-to-face interviews among clients receiving ANC. A total of 347 mothers was selected by simple random sampling and were interviewed while they come to antenatal care follow-up in Gedo general hospital. Data were entered into Epi-data version 4.6 and then changed to SPSS version 23 for the analysis purpose. Those Variables which are P < 0.25 in binary logistic regression were selected as a candidate for multiple logistic regressions to determine independently associated factors. The adjusted odds ratio was employed with 95% CI to illustrate the strength of association and P < 0.05 was used to state a statistical significance. Result Among 330 women, about 58.5% of women came for their first ANC visit initiation lately. Being a housewife, having a family size >4, and having a distance from the health facility >1 h were higher odds of late first ANC visit initiation as compared to vice versa. Besides, women aged 20–24 years had 0.18 times and 25–29 years had lower odds of late first ANC visit initiation Conclusion Majority of women began their first antenatal care initiation lately. Therefore, the provision of awareness on the significance of attending the first antenatal care early via health extension workers is recommended
Children and Adolescents' Mental Health Following COVID-19: The Possible Role of Difficulty in Emotional Regulation

The COVID-19 pandemic has shattered routines throughout the world, creating closures and social isolation. Preliminary studies conducted during the pandemic have shown that children and adolescents are mainly affected by social distancing and the lack of a supportive framework. The purpose of the present study was to compare mental health symptoms of 430 children and adolescents who sought mental health services in the community before vs. during the pandemic. The study examined children's perceived burden of the pandemic, reports of emotional and behavioral problems (SDQ) anxiety (SCARED), depressed moods (SMFQ-C), and difficulty in emotional regulation (DERS), as well as intervening variables such as age and gender. Furthermore, the effect of difficulty in emotional regulation on children's mental health symptoms was explored. Findings indicate an increase in all mental health symptoms excluding anxiety, during the pandemic. Boys reported more difficulty in emotional regulation during the pandemic than before, and girls reported more emotional and behavioral problems. Children reported an increase in emotional and behavioral problems and adolescents in peer relationship problems. Difficulty in emotional regulation predicted all mental health symptoms in both samples, more so in girls and adolescents. These initial findings support the need for further studies to examine the long-term mental health effects of COVID-19 pandemic on children and adolescents.
Who Purchases From the Informal Economy and Why?

In recent decades scholars have acknowledged that transactions in the informal economy have not vanished with modernization and industrialization as expected but rather remain an important contemporary aspect of overall production and consumption across the world, in both developing and developed countries. Yet little is known about the profile of the consumers in this realm or what drives them to purchase from the informal economy. A systematic review of the literature investigating consumption in the informal economy reveals a severely underdeveloped area of consumer studies with significant gaps in terms of its theoretical approaches, methods and regional coverage. The findings of the existing literature is that multiple motives are used by consumers for justifying their purchases in the informal economy beyond the dominant simplistic view that they do simply for financial gain or for a lower price (namely, it identifies social ends and failures in formal market provision in terms of availability, speed of provision and quality). The outcome is a recognition that responsibility to reducing this phenomenon with negative effects on governments, businesses, workers and consumers lies not just with public authorities but also practitioners who need to correct the failures in formal market provision. The significant gaps identified in the literature are then used to highlight a comprehensive future research agenda, which includes the need for the development of an institutionalist theoretical perspective when explaining consumers‘ participation in the informal economy and social marketing interventions.
Being vulnerable in a vulnerable activity: women market gardeners of Kinshasa

ABSTRACT Market gardening is an important contributor to food security and to the livelihoods of households in sub-Saharan Africa. Women represent an important share of this activity. Our goal in the present article is to draw attention to an overlooked area of the world that echoes many other situations. What is it like being a woman market gardener in Kinshasa? Using a qualitative methodology, we show that this strongly gendered activity is an important opportunity for women. However, they face a multiplicity of threats, intensified by their gender, regarding access to land, possibilities to organize, gender norms, and rights.
Immunogenicity Evaluating of the Multivalent COVID-19 Inactivated Vaccine against the SARS-CoV-2 Variants

It has been reported that the novel coronavirus (COVID-19) has caused more than 286 million cases and 5.4 million deaths to date. Several strategies have been implemented globally, such as social distancing and the development of the vaccines. Several severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants have appeared, such as Alpha, Beta, Gamma, Delta, and Omicron. With the rapid spread of the novel coronavirus and the rapidly changing mutants, the development of a broad-spectrum multivalent vaccine is considered to be the most effective way to defend against the constantly mutating virus. Here, we evaluated the immunogenicity of the multivalent COVID-19 inactivated vaccine. Mice were immunized by multivalent COVID-19 inactivated vaccine, and the neutralizing antibodies in serum were analyzed. The results show that HB02 + Delta + Omicron trivalent vaccine could provide broad spectrum protection against HB02, Beta, Delta, and Omicron virus. Additionally, the different multivalent COVID-19 inactivated vaccines could enhance cellular immunity. Together, our findings suggest that the multivalent COVID-19 inactivated vaccine can provide broad spectrum protection against HB02 and other virus variants in humoral and cellular immunity, providing new ideas for the development of a broad-spectrum COVID-19 vaccine.