Miracle-dz/UniFAR-FTUs huggingface dataset:
Superspinglass state in functionalized zeolite 5A-maghemite nanoparticles

The structural, vibrational, and magnetic properties of maghemite nanoparticles functionalized with zeolite type 5A and synthesized by coprecipitation were studied in detail. Crystallite and particle sizes were determined and discussed based on the polydispersity index. Its value of 0.4 has suggested the presence of a broad particle distribution with particle sizes between 3 and 20 nm. Three samples were successfully functionalized either before or after the formation of the maghemite nanoparticles. Infrared studies have shown that the functionalization has occurred by hydrated surface groups present in the zeolite type 5A surface, which have favored strong bindings and highly concentrated regions of maghemite nanoparticles. From the temperature dependence of the hyperfine magnetic field obtained by Mossbauer spectroscopy, the effective magnetocrystalline anisotropy constants of the three nanohybrids were determined. They are one order of magnitude higher than for the bulk counterpart, and there is evidence for strong interparticle interactions for the three studied nanohybrids. These strong magnetic interactions of the nanoparticles in the zeolite framework have favored a superspinglass-like behavior for all samples with transition temperatures located at 74 and 208 K, as confirmed by AC susceptibility measurements.
Health-related physical fitness among adolescent school boys in Madinah city, western Saudi Arabia

This study aimed to measure health-related physical fitness components (cardiorespiratory fitness, body fat, muscle strength, flexibility) among adolescent school boys in Madinah, western Saudi Arabia. The participants comprised 36 male students who performed a maximal multistage 20-m shuttle run test to estimate maximal oxygen consumption (VO2max). Body fat percentage (BF%) was determined using the bioelectrical impedance scale; hand grip strength was measured using a hand grip dynamometer; and flexibility was determined using the sit and reach test. The results of the health-related physical fitness tests reveal that the mean (± SD) value of estimated VO2max was 41.1 ± 6.9 (ml.kg.min). The mean (± SD) values of BF%, right-hand grip strength, left-hand grip strength, and flexibility were 18.7 ± 8.6 (%), 33.3 ± 5.6 (kg), 32.8 ± 5.7 (kg), and 15.8 ± 3.9 (cm), respectively. With the exception of flexibility, we conclude that it is necessary to improve health-related physical fitness components, particularly muscle strength, among Saudi adolescent school boys in Madinah city.
Primary Tumor Location is Associated with Prognosis for Women with Breast Cancer

Background: The prognostic impact of tumor location on breast cancer patients is not consistent and still controversial. We aimed to investigate the prognostic role of primary tumor location on the survival of patients with breast cancer. Methods: Using the Surveillance, Epidemiology, and End Results database, we identified 53,905 patients diagnosed with tumors in the lower quadrants (n=11,065), upper quadrants (n=38,974), or central and nipple (n=3,866). Chi-squared test was used to compare categorical variables across the groups. Cox proportional hazard models were applied to estimate the factors associated with prognosis.Results: Compared with the other quadrants, patients with central and nipple lesions showed generally more unfavorable clinicopathologic features and worse breast cancer-specific survival (BCSS) and overall survival (OS). Multivariate Cox analysis showed a higher hazard ratio (HR) for tumor location of central and nipple (BCSS: HR, 1.145, p = 0.036, 95% confidence interval [CI], 1.009-1.299; OS: HR, 1.118, p = 0.024, 95% CI: 1.015-1.232), while lower HR were observed for upper quadrants (BCSS: HR, 0.888, p = 0.004, 95% CI: 0.818-0.964; OS: HR, 0.930, p = 0.023, 95% CI: 0.873-0.990). Multivariate logistic regression indicated that tumors located in central and nipple were more likely to be inoperable disease (HR, 1.460, 95% CI: 1.300-1.640, p < 0.001), while tumors located in upper quadrants tend to be operable disease (HR, 0.895, p = 0.005, 95% CI, 0.829-0.967). Conclusion: Tumors located in central and nipple had negative contact with BCSS and OS, while tumor located in upper quadrants had favorable contact with survival.
A Content Analysis of the Websites of the World’s Top 50 Universities in Medicine

ABSTRACT This study examined the quality of library websites of QS world top-ranked medical libraries’ services, resources, information dissemination tools, and training opportunities to library users. Moreover, this study also explores the medical resources provided by medical universities remotely. The study used web content analysis method. A checklist consisting on nine main categories and 87 indicators have been finalized. The website quality assessment score indicated that none of the university libraries in the discipline of “medicine” gained 100% score. However, two university libraries (University of Cambridge and University of Washington) scored more than 90%. The finding revealed that “patron-driven acquisition” was a least common service (n = 6) and significant number of university libraries (42%) were still not using mobile apps. The most famous five dissemination tools are Facebook, Twitter, Instagram, YouTube, and LinkedIn. While web of science, PubMed, PsycINFO are significantly available databases to most of the libraries. This is an in-depth and first study investigating the web content analysis of world top-ranked medical universities libraries.
The value of OPEC’s spare capacity to the oil market and global economy

We investigate the extent to whichOPEC has succeeded in its self-stated mission of stabilising the oil market and the implications for the world’s economy. We discuss the modelling framework developed by Pierru, Smith and Zamrik (2018) and Pierru, Smith and Almutairi (2020) and update their analyses. Unstabilised monthly oil prices that would have prevailed in the absence of OPEC’s spare capacity policy are determined for the September 2001–June 2020 period. Overall, OPEC’s management of spare capacity has significantly decreased themonthly volatility of the oil price. Three subperiods (commodity boom, market-share campaign, OPEC+) can, however, be distinguished in terms of the impact on price volatility. The annual value of OPEC’s spare capacity to the world’s economy is estimated to be 193.1 billion in 2019 US dollars.
Energy-Aware Coded Caching Strategy Design With Resource Optimization for Satellite-UAV-Vehicle-Integrated Networks

The Internet of Vehicles (IoV) can offer safe and comfortable driving experience, by the enhanced advantages of space–air–ground-integrated networks (SAGINs), i.e., global seamless access, wide-area coverage, and flexible traffic scheduling. However, due to the huge popular traffic volume, limited cache/power resources, and the heterogeneous network infrastructures, the burden of backhaul link will be seriously enlarged, degrading the energy efficiency of IoV in SAGIN. In this article, to implement the popular content severing multiple vehicle users (VUs), we consider a cache-enabled satellite-UAV-vehicle-integrated network (CSUVIN), where the geosynchronous Earth orbit (GEO) satellite is regard as a cloud server, and unmanned aerial vehicles are deployed as edge caching servers. Then, we propose an energy-aware coded caching strategy employed in our system model to provide more multicast opportunities, and to reduce the backhaul transmission volume, considering the effects of file popularity, cache size, request frequency, and mobility in different road sections (RSs). Furthermore, we derive the closed-form expressions of total energy consumption both in single-RS and multi-RSs scenarios with asynchronous and synchronous services schemes, respectively. An optimization problem is formulated to minimize the total energy consumption, and the optimal content placement matrix, power allocation vector, and coverage deployment vector are obtained by well-designed algorithms. We finally show, numerically, our coded caching strategy can greatly improve energy efficient performance in CSUVINs, compared with other benchmarked caching schemes under the heterogeneous network conditions.
Nutritional Evaluation of Sago of Gebang Tree (Corypha utan Lamk) from Different Locations in West Timor - Indonesia for Broilers

Two experiments were conducted to evaluate the nutritional value of sago from different locations in West Timor, Indonesia for broilers. Experiment I aimed at determining the apparent metabolizable energy (AME) and nutrient digestibility of sago from different locations. A total of 120 broilers (unsexed, age 21 d) were randomly distributed to 24 metabolic cages (5 birds/cage). The experimental design was a completely randomized design (CRD) consisting of 6 treatments and 4 replications. The experimental diets were a basal diet (maize-soy) and 5 treatment diets which were a mixture of basal ration (75%) and sago (25%) from different locations. Experiment II was about performance trials. Two different basal diets were formulated, supplemented with synbiotics and fed to 200 birds (unsexed, 10 birds/pen). The experimental design was a 2 x 2 factorial CRD. With the exception of phytate and phenol contents, the results showed that the location affected (p 0.05) ash, crude fat, starch, Ca, P, and gross energy contents of sago. Basal diets affected (p 0.05) the performance of the birds. In conclusion, the nutrient composition and digestibility of sago are affected by locations. Sago is rich in starch and high in AME values, but poor sources of calcium, phosphor, and protein. Sago contains fiber, tannin, phytate, flavonoids, and phenol. Sago diets improved the performance of broilers. Synbiotics did not improve the performance of birds.
Large elastocaloric effect in a Heusler-type Co50V35Ga14Ni1 polycrystalline alloy

Solid state refrigeration technology relies on the high-performance materials with remarkable caloric properties. Here, we demonstrate a large elastocaloric effect through stress-induced martensitic transformation in a Heusler-type Co50V35Ga14Ni1 polycrystalline alloy. By rapidly removing a moderate compressive stress of 400 MPa, a large adiabatic temperature change up to −12.1 K is achieved. Moreover, high cyclability of the elastocaloric effect with more than 4000 loading/unloading cycles is also obtained. With the combination of a large elastocaloric effect and good cyclability, Co-V-Ga based alloys hold great potential for environment-friendly solid-state refrigeration applications.
Catalyst-Mediated Enhancement of Carbon Nanotube Textiles by Laser Irradiation: Nanoparticle Sweating and Bundle Alignment

The photonic post-processing of suspended carbon nanotube (CNT) ribbons made by floating catalyst chemical vapor deposition (FC-CVD) results in selective sorting of the carbon nanotubes present. Defective, thermally non-conductive or unconnected CNTs are burned away, in some cases leaving behind a highly crystalline (as indicated by the Raman G:D ratio), highly conductive network. However, the improvement in crystallinity does not always occur but is dependent on sample composition. Here, we report on fundamental features, which are observed for all samples. Pulse irradiation (not only by laser but also white light camera flashes, as well as thermal processes such as Joule heating) lead to (1) the sweating-out of catalyst nanoparticles resulting in molten catalyst beads of up to several hundreds of nanometres in diameter on the textile surface and (2) a significant improvement in CNT bundle alignment. The behavior of the catalyst beads is material dependent. Here, we show the underlying mechanisms of the photonic post-treatment by modelling the macro- and microstructural changes of the CNT network and show that it is mainly the amount of residual catalyst which determines how much energy these materials can withstand before their complete decomposition.
The external commercialisation of technology in emerging domains – the antecedents, consequences, and dimensions of desorptive capacity

ABSTRACT Desorptive capacity is the organisational ability to transfer internal knowledge to external actors to obtain competitive advantage. We distinguish two forms of desorptive capacity to investigate how organisations active in emerging technology domains explore and exploit opportunities to match internally developed technology to external needs. We also focus on management innovation – the ability to create or revise organisational structures or processes – as a potential antecedent of desorptive capacity. From a study of 84 synthetic biology organisations we found that explorative and exploitative desorptive capacity mediate the relationship between management innovation and external technology commercialisation. The study provides empirical evidence of the existence and interdependence of different managerial and organisational processes required for external technology commercialisation. We underscore how organisations can valorise technological assets strategically through management innovation and by achieving a fit between internal practices and the technological base of potential technology adopters.
Repair and rehabilitation of corroded HDPE100 pipe using a new hybrid composite

The good management of drinking water begins with a supply network, with a low rate of leakage. Currently, the pipes used in the water transport system are mainly made of polymeric materials, such as HDPE. The corrosion degradation of this type of pipe has received a lot of attention from the drinking water supply companies. It is therefore important to understand the effect of pressure on an HDPE pipe with a surface defect. To answer this problem, we will first study the mechanical behavior at failure of HDPE pipes in the presence of a surface defect using a finite element method. For the rehabilitation of pipe in presence of surface defect, we try to use a new composite. This new laminated composite is reinforced with a natural organic load. It is obtained from a laminated composite woven by incorporating a natural non-polluting organic load (granulates of date cores) which becomes hybrid composite. The new economical hybrid composite material is made of an organic matrix containing methyl methacrylate, a woven reinforcement including a reinforcing glass fiber and a fabric perlon having an absorbing role. The textile reinforcement made up of several folds reinforcing laid out according to the orientations (90, 452, and 0). A numerical simulation with the ANSYS Workbench software is carry out to study the behavior of the HDPE pipe with surface defect and with defect repaired by the new hybrid composite material in the form of rings to consolidate the cracked area of ​​the tube. The numerical results will allow us to decide on a real practical use of the new hybrid composite.
Who are the SPAC CEOs?

Our hand-collected sample of 298 U.S. SPACs reveals that the modal SPAC CEO is a 50-year-old male MBA graduate with substantial financial expertise. In accordance with signaling theory, greater reputation gained through prior CEO experience in public companies is linked to larger SPACs. As the IPO process continues, the CEO’s financial expertise becomes important in raising external capital.
Socio-Educational Factors to Promote Educational Inclusion in Higher Education. A Question of Student Achievement

Psychosocial factors have a direct impact on the academic achievement of university students, especially when they belong to diverse human groups. This article shows the results of a project developed in a Colombian university with the aim of finding out the identity traits, situations of discrimination, and risk factors faced by students belonging to diverse groups. The research is qualitative, exploratory, and descriptive, approached from a social and educational perspective. Semi-structured interviews were conducted with 15 students. The high level of identification with the group is visible in stufuigureents with affective-sexual diversity, gender identity and ethnic-cultural diversity, considered to be the most discriminated-against populations. Risks in the labor, educational, social, and family spheres are the most frequent.
Multi-objective optimisation of tool indexing problem: a mathematical model and a modified genetic algorithm

Machining process efficiencies can be improved by minimising the non-machining time, thereby resulting in short operation cycles. In automatic-machining centres, this is realised via optimum cutting tool allocation on turret-magazine indices – the “tool-indexing problem”. Extant literature simplifies TIP as a single-objective optimisation problem by considering minimisation of only the tool-indexing time. In contrast, this study aims to address the multi-objective optimisation tool-indexing problem (MOOTIP) by identifying changes that must be made to current industrial settings as an additional objective. Furthermore, tool duplicates and lifespan have been considered. In addition, a novel mathematical model is proposed for solving MOOTIP. Given the complexity of the problem, the authors suggest the use of a modified strength Pareto evolutionary algorithm combined with a customised environment-selection mechanism. The proposed approach attained a uniform distribution of solutions to realise the above objectives. Additionally, a customised solution representation was developed along with corresponding genetic operators to ensure the feasibility of solutions obtained. Results obtained in this study demonstrate the realization of not only a significant (70%) reduction in non-machining time but also a set of tradeoff solutions for decision makers to manage their tools more efficiently compared to current practices.
Efficiently cogenerating drinkable water and electricity from seawater via flexible MOF nanorod arrays

Although solar vapor desalination via interface water evaporation (SDWIE) from seawater and evaporation-induced electricity generation from pure water or low concentration salt water, respectively, have been realized separately in different systems, cogenerating drinkable water and electricity from seawater via one device simultaneously is more desirable but still challenging. In this work, a flexible Cu-CAT-1 MOF nanorod array membrane with controllable 2D/3D structures is rationally designed via a facile solid conversion process at room temperature. The Cu-CAT-1 nanorod arrays anchor on filter paper via a thin gelatin layer. Due to unique hierarchical architectures, superior solar absorption, good photothermal conversion, high zeta potentials and outstanding hydrophilicity, the resulting membrane constructed 3D SDIWE device simultaneously displays extraordinary solar desalination performance (2.07 kg m−2 h−1 based on the projected area) and nice all-weather electricity output (18.2 mW m−2) using simulated seawater. It can power up small electronic devices such as calculators, timers and light-emitting diodes (LEDs). This provides a novel avenue for the design of drinkable water and electricity cogeneration devices.
Parental Economic Migration and Children’s Outcomes in Romania: The Role of Social Support, Parenting Styles, and Patterns of Migration

Since the fall of communism, approximately 10%–15% of the Romanian population are estimated to have left the country in search of economic opportunities, resulting in a high number of children being left behind (i.e., children of migrant parent; CMP) in Romania. This study explored patterns of parental migration and frequency and correlates of mental health problems among CMP. A total of 889 adolescents, aged 13–18 years, with migrant parent(s) participated in the present study. Results showed a high prevalence of mental health problems, with dysthymia (51%) being the most common. As for parenting styles, “inconsistency” was found to increase the risk for depression and dysthymia. “Higher involvement” from parents significantly decreased the risk for attention deficit hyperactivity disorder, panic, and substance abuse. The findings were discussed in terms of their clinical, training, and political implications.
Solubility improvement of epalrestat by layered structure formation via cocrystallization

Epalrestat, a drug for diabetic neuropathy, was able to form a cocrystal with a pharmaceutically acceptable coformer of caffeine. The cocrystal was characterized using powder X-ray diffraction and infrared spectroscopy, and the structure was determined using single crystal structure analysis. Pharmaceutically relevant physicochemical properties such as solubility, dissolution rate, and physical stability were evaluated. The cocrystal exhibited higher solubility and faster dissolution than the parent drug material. This improvement corresponded to the formation of a layered structure in the cocrystal, wherein a chain consisting of epalrestat molecules is sandwiched between caffeine molecules. The cocrystal also exhibited physical stability during a slurry experiment in most organic solvents, except in dimethylformamide (DMF) and dimethyl sulfoxide (DMSO) solvents. In these solvents, the cocrystals underwent disproportionation into caffeine and epalrestat solvates (DMF and DMSO), and the crystal structures of epalerstat DMF and DMSO solvates are also reported in this study.
Biofortification of wheat with zinc as affected by foliar applications of zinc, pesticides, phosphorus and biostimulants

Abstract. Integrating foliar zinc (Zn) application into common practices, e.g. application of pesticides, phosphorus (P) or biostimulants, is a feasible agronomic strategy of wheat biofortification. However, it remains unclear how this integrated approach affects the efficacy of foliar Zn sprays, especially under unfavourable environmental conditions. Here, two field experiments considering Zn forms (ZnSO4 and zinc-glycine) and applications (alone or combined with pesticides, KH2PO4, and biostimulants amino acids or fulvic acids) were conducted in two seasons (2017 and 2018), and their effects on the magnitude of grain Zn increment and bioavailability were evaluated. The results showed that less precipitation in 2018 caused 11.7–52.2% yield losses than in 2017, which increased grain Zn concentration by 13.4–58.4%. Foliar application of Zn-glycine did not surpass ZnSO4 spray in regarding to grain Zn concentration and bioavailability. Grain Zn concentration substantially decreased in plants sprayed with KH2PO4 irrespective of Zn forms applied, indicating strong antagonistic effects of P supply on grain Zn enrichment. There were no differences in grain Zn density between the applications of amino acids and fulvic acids. However, grain Zn bioavailability significantly increased by 22.3 and 23.4% in the Zn plus pesticides treatment when sprayed with fulvic acids in 2017 and with amino acids in 2018, respectively. Overall, environmental conditions and foliar Zn management considering Zn forms and applications accounted for 35–45% and 20–37% of explained variation in the magnitude of grain Zn increment, respectively. The results demonstrated that management and environment are crucial factors to consider in agronomic biofortification of wheat.
Molecular analyses of confiscated shark fins reveal shortcomings of CITES implementations in Germany

A three‐ton shipment of dry shark fins was examined by German customs in 2017 leading to the confiscation of 405 kg of potential CITES species. We analyzed a subsample of this material (115 specimens) using DNA sequence‐based identification and compared results to morphological screening of CITES species. We found a mixture of CITES regulated (4 of 11 species) and unregulated shark species. Our results demonstrate the difficulties of identifying CITES species morphologically in large fin shipments of mixed species composition. Correct identification of CITES species based on morphology alone may be hindered by missing characters or those altered by drying. We therefore suggest random molecular screening as a uniform approach for German customs authorities to check species composition and identify CITES regulated species in transit shipments.