Miracle-dz/UniFAR-FTUs huggingface dataset:
The relationships between institutionalization and dual commitment: A study on hotel kitchen employees

Long-termed continuance of employees in hotel enterprises, especially in kitchen department where standard production is of utmost importance, is critical for organizational success. At this point, how institutionalization, a phenomenon that is usually associated with standardization, effects the organizational commitment (OC) is an important question. Another important question is how commitment to an impressive supervisor such as the chef mediates the relationship between institutionalization and OC in institutionalized hotels where standards become important instead of personal approaches. In this context, the relationship between institutionalization, OC, and commitment to the supervisor (CS), which has not been studied before, has been examined within the framework of hotel businesses. The data were collected with an online survey. The sample consisted of the kitchen staff of a national hotel chain in Turkey. The findings demonstrated that the effects of institutionalization on OC and CS were significant. CS partially mediates the relationship between institutionalization and OC. When considered within the scope of the dimensions, the CS has a partial mediating effect on the relationship between cultural power and all three dimensions of OC (affective, continuance, normative). The effect of formalization and professionalization on affective and normative commitment is partially mediated by CS.
Effect of Printing Layer Thickness and Postprinting Conditions on the Flexural Strength and Hardness of a 3D-Printed Resin

Background Recently, dentists can utilize three-dimensional printing technology in fabricating dental restoration. However, to date, there is a lack of evidence regarding the effect of printing layer thicknesses and postprinting on the mechanical properties of the 3D-printed temporary restorations with the additive manufacturing technique. So, this study evaluated the mechanical properties of a 3D-printed dental resin material with different printing layer thicknesses and postprinting methods. Methods 210 specimens of a temporary crown material (A2 EVERES TEMPORARY, SISMA, Italy) were 3D-printed with different printing layer thicknesses (25, 50, and 100 μm). Then, specimens were 3D-printed using DLP technology (EVERES ZERO, DLP 3D printer, SISMA, Italy) which received seven different treatment conditions after printing: water storage for 24 h or 1 month, light curing or heat curing for 5 or 15 minutes, and control. Flexural properties were evaluated using a three-point bending test on a universal testing machine (ISO standard 4049). The Vickers hardness test was used to evaluate the microhardness of the material system. The degree of conversion was measured using an FT-IR ATR spectrophotometer. Statistical analysis was performed using two-way analysis of variance (ANOVA) and Tukey's honestly significant difference (HSD) test (p ≤ 0.05). Results The 100 μm printing layer thickness had the highest flexural strength among the other thickness groups. As a combined effect printing thickness and postprinting conditions, the 100 μm with the dry storage group has the highest flexural strength among the tested groups (94.60 MPa). Thus, the group with 100 μm thickness that was heat cured for 5 minutes (HC 5 min 100 μm) has the highest VHN value (VHN = 17.95). Also, the highest mean DC% was reported by 50 μm layer thickness (42.84%). Conclusions The thickness of the 100 μm printing layer had the highest flexural strength compared to the 25 μm and 50 μm groups. Also, the postprinting treatment conditions influenced the flexural strength and hardness of the 3D-printed resin material.
CALCULATION FOR PILE-SOIL STRESS RATIO OF TWO-DIRECTION REINFORCED COMPOSITE FOUNDATION

According with characteristics of interactions of vertical piles, horizontal reinforced mattress and soil, the horizontal reinforced mattress was supposed to be a thin plate, while vertical piles and soils were simplified as spring series with different rigidities respectively. A cylinder composed of a single pile and soils located in its influence area were regarded as the typical element to analyze the two-direction reinforced composite foundation. A function of the horizontal reinforced mattress deflection was deduced based on a circular thin plate on Winkler foundation, and the formula of the pile-soil stress ratio of the composite foundation was also deduced. Finally, an example was given for calculation and analysis. The main influence factors including the embankment loads, residual settlement, area replacement ratio and stiffness ratio of pile and soil are considered systemically. The change rules of pile-soil stress ratio are also investigated. The analysis result shows the good agreement with the test result.
Neurological complications during the course of severe COVID-19: is it just the tip of the iceberg?

1 https://www.accjournal. org Dear Editor: During the coronavirus disease 2019 (COVID-19) pandemic, expanding data on the presence of neurological complications has increased the interest in neurological involvement of COVID-19 and its possible pathophysiological mechanisms. Recently, many studies have been published showing that COVID-19 may cause neurological disorders [1-3]. The incidence of neurological disorders has been reported higher in severe patients requiring intensive care admission [2]. In COVID-19 patients, timely recognition and intervention of neurological disorders is crucial to improve outcomes. For this reason, we aimed to share the characteristics of neurological diseases in critically-ill COVID-19 patients who were admitted to our COVID-intensive care unit (ICU) between March 21, 2020 and March 21, 2021 for 1-year period. In our ICU, 16 (4.9%) of 328 critically ill confirmed COVID-19 patients manifested with severe neurological diseases. Neurological findings were present in half of the patients at hospital admission and in the remaining eight patients, neurological problems were detected after ICU admission, in five of them after failure of awakening from cessation of sedation and in three of them after development of hemiparesis. Patients’ characteristics are shown in Table 1. There were 13 cases (81.3%) with ischemic stroke (IS), 10 of these patients had no previous history of IS. There was one case with Guillain-Barre syndrome, one with intracranial hemorrhage, and one with meningitis. IS was the most common neurological disease in our registry similar to other studies. However, when the risk factors of 13 patients regarding IS were evaluated, there was only one patient who did not have any risk factors for IS. Other patients had at least one risk factor for IS. There was hypertension in six patients, diabetes mellitus in five patients, cardiac disease in four patients, cerebrovascular disease in three patients and a long-term intensive care stay with renal failure and septic shock in one patient. Overall mortality was 37.5% in patients with neurological disease, whereas the 1-year mortality was 32.3% in our COVID-19 cohort. The fact that detailed neurological evaluation could not be performed during a pandemic in the context of ICU, indicates that the incidence of neurological diseases might even be more than that reported, increasing morbidity and mortality. Patients can present with neurological complications before development of respiratory symptoms and signs during the COVID-19 course. Suspicion threshold for neurological complications should be low in cases of encephalopathy even if focal neurological deficits were not detected in COVID-19 Neurological complications during the course of severe COVID-19: is it just the tip of the iceberg?
Structural morphology and modern space structures

The structural morphology focuses on the relationship between structural form and its mechanical behavior, which has extensive research contents and a characteristic of intersection of multi-subject,and it has not formed basic theoretical system till now. The space structure is a kind of form-active structures and always has rich and varied forms. How to realize the harmony between the innovative form and reasonable performance is the key problem for the design of such structures. Therefore the research on structural morphology plays an important significance on theinnovative development of space structures. The research categories and development vein of the structural morphology are discussed firstly,and a relatively cleardefinition of ‘Structural Morphology'is given. Then,with the introduction to the developmentof several categories of modern space structures,such as tensile structures,free-form structures,free-topology structures,a comment on the research process of structural morphology is emphatically made. In addition,some achievements in research and practice by the authors' research team gained in recent years are emphatically introduced.
Dynamic Changes in Uterine NK Cell Subset Frequency and Function Over the Menstrual Cycle and Pregnancy

Uterine Natural Killer cells (uNK) play an important role in promoting successful pregnancy by regulating trophoblast invasion and spiral artery remodelling in the first trimester. Recently, single cell RNA sequencing (scRNAseq) on first trimester decidua showed that uNKs can be divided into three subsets, which may have different roles in pregnancy. Here we present an integration of previously published scRNAseq datasets, together with novel flow cytometry data to interrogate the frequency, phenotype and function of uNK1-3 in seven stages of the reproductive cycle (menstrual, proliferative, secretory phases; first, second, third trimester; and postpartum). We found that uNK1 and −2 peak in the first trimester, but by the third trimester the majority of uNK are uNK3. All three subsets are most able to degranulate and produce cytokines during the secretory phase of the menstrual cycle and express KIR2D molecules, which allow them to interact with HLA-C expressed by placental extravillous trophoblast cells, at the highest frequency during the first trimester. Taken together, our findings suggest that uNK are particularly active and able to interact with placental cells at the time of implantation, and that uNK1 and 2 may be particularly involved in these processes. Our findings are the first to establish how uNK frequency and function changes dynamically across the healthy reproductive cycle. This serves as a platform from which the relationship between uNK function and impaired implantation and placentation can be investigated. This will have important implications for the study of subfertility, recurrent miscarriage, pre-eclampsia and pre-term labour.
Short- and long-term outcome after surgical aortic valve replacement in patients on dialysis

Background There is no consensus on the choice of aortic valve prosthesis for patients with end-stage renal failure. We analyzed short- and long-term complications in dialysis patients who underwent aortic valve replacement (AVR) with either a biological (bAVR) or a mechanical (mAVR) prosthesis. Methods All patients on dialysis who underwent bAVR or mAVR in Sweden from 1995 to 2017 (n=335) were included in a nationwide, population-based, observational, cohort study. Short and long-term complications were compared. Long-term mortality was compared with multivariable Cox regression analysis adjusted for age, sex, comorbidities, and a propensity score-matched model. Median follow-up was 2.8 (range, 0–16) years. Results Biological and mechanical valves were implanted in 253 (75.5%) and 82 (24.5%) patients, respectively. The bAVR patients were older and had more comorbidities. There was no significant difference in early complication rate. Thirty-day mortality was 9.1% in bAVR and 7.3% in mAVR patients (P=0.62). The multivariable Cox regression model did not show significant difference in mortality risk between bAVR and mAVR patients [adjusted hazard ratio (aHR) 1.33; 95% CI: 0.84–2.13; P=0.22]. The results were confirmed in the propensity-score matched model. The rate of aortic valve reoperations did not differ significantly between the bAVR and mAVR group. Conclusions The short- and long-term complication rate is high, and the expected life expectancy limited, in dialysis patients undergoing AVR, without significant difference between biological and mechanical prostheses. The results suggest that biological valve prosthesis, avoiding systemic anticoagulation, is appropriate in most dialysis patients.
A Brief Review of Poly (Butylene Succinate) (PBS) and Its Main Copolymers: Synthesis, Blends, Composites, Biodegradability, and Applications

PBS, an acronym for poly (butylene succinate), is an aliphatic polyester that is attracting increasing attention due to the possibility of bio-based production, as well as its balanced properties, enhanced processability, and excellent biodegradability. This brief review has the aim to provide the status concerning the synthesis, production, thermal, morphological and mechanical properties underlying biodegradation ability, and major applications of PBS and its principal copolymers.
Assessing combined effects of varenicline and N‐acetylcysteine on reducing nicotine seeking in rats

Nicotine addiction is a chronic relapsing brain disorder, and cigarette smoking is the leading cause of preventable death in the United States. Currently, the most effective pharmacotherapy for smoking cessation is Varenicline (VRN), which reduces both positive and negative reinforcement by nicotine. Clinically, VRN attenuates withdrawal symptoms and promotes abstinence, but >50% of smokers relapse within 3 months following a quit attempt. This may indicate that VRN fails to ameliorate components of nicotine‐induced neuroplasticity that promote relapse vulnerability. Animal models reveal that glutamate dysregulation in the nucleus accumbens is associated with nicotine relapse. N‐acetylcysteine (NAC) normalizes glutamate transmission and prolongs cocaine abstinence. Thus, combining VRN and NAC may promote and maintain, respectively, nicotine abstinence. In rats, we found that VRN effectively reduced nicotine self‐administration and seeking in early abstinence, but not seeking later in abstinence. In contrast, NAC reduced seeking only later in abstinence. Because VRN and NAC are sometimes associated with mild adverse effects, we also evaluated a sequential approach combining subthreshold doses of VRN during self‐administration and early abstinence with subthreshold doses of NAC during late abstinence. As expected, subthreshold VRN did not reduce nicotine intake. However, subthreshold VRN and NAC reduced seeking in late abstinence, suggesting a combined effect. Overall, our results suggest that combining subthreshold VRN and NAC is a viable and drug‐specific approach to promote abstinence and reduce relapse while minimizing adverse effects. Our data also suggest that different components and time points in addiction engage the different neurocircuits targeted by VRN and NAC.
Collection of Data on Fire and Collapse, Faculty of Architecture Building, Delft University of Technology

On May 13, 2008 a sizeable portion of the Faculty of Architecture Building at Delft University of Technology (TUD) collapsed following a fire. This is significant in that collapse of reinforced concrete buildings due to fire is rare. In order to facilitate analysis of this fire and collapse, the research team met with TUD personnel, fire fighters, eyewitnesses, and government researchers to collect data of scientific importance, including digital recordings of the event, structural plans, material specifications, architectural layout, data on building systems, information on contents, fire safety management procedures, and response of the occupants and fire fighters. 1. Overview: On the morning of May 13, 2008, a fire that started in a coffee vending machine on the 6 floor of the 13-story Faculty of Architecture Building quickly developed into an extreme loading event. Although all building occupants evacuated safely, the rapid fire spread severely impacted fire department operations, allowing the fire to burn uncontrolled for seven hours, eventually resulting in the structural collapse of a major portion of the building. The damage was significant enough that the building had to be demolished. Collecting and archiving data from this fire is extremely important because structural collapse of high-rise buildings due to fire has historically been quite rare. There are several reasons for this, from the overall infrequency of fire ignition in high-rise buildings, to the combination of structural fire resistance of the frame, fire-rated compartment barriers, automatic fire suppression systems, and fire department suppression activities. This fire offers a unique opportunity to study the performance of a high-rise building in a major fire wherein one or more of these measures were absent or failed to provide the expected performance. Fig. 1. Photograph of Faculty of Architecture building in 1970 [1]. Fig. 2. Photograph of Faculty of Architecture Building, TUD, following fire and partial collapse [2]. NSF GRANT #0840601 NSF PROGRAM NAME: HMSE & IMEE
The Effect of Traditional and Cyclodextrin-Assisted Extraction Methods on Trifolium pratense L. (Red Clover) Extracts Antioxidant Potential

Red clover is the subject of numerous studies because of its antioxidant properties, the positive influence of isoflavones on the health, and its potential use in the prevention and treatment of chronic diseases. The right excipients, such as cyclodextrins, can increase the profile of valuable phenolic compounds in extraction media to obtain rich in antioxidants, extracts that can be used in nutraceuticals production. The aim of this study was to investigate and compare the total phenolic content, flavonoid content, and antioxidant activity of red clover aerial parts, aqueous and ethanolic extracts prepared using traditional and cyclodextrins-assisted methods. The antioxidant activity of the extracts was established using ABTS, DPPH, FRAP, and ABTS-post column methods. It was determined that cyclodextrins significantly increased total phenolic content (compared with control)—using β-cyclodextrin 20.29% (in aqueous samples); γ-cyclodextrin 22.26% (in ethanolic samples). All the samples prepared with excipients demonstrated a strong relationship between total phenolic content and DPPH assay. Study showed that for extraction with water, the highest amounts of phenolic compounds, flavonoids and antioxidant activity will be achieved with β-cyclodextrin, but extractions with ethanol will give the best results with γ-cyclodextrin. Therefore, cyclodextrins are a great and safe tool for obtaining rich, red clover flower extracts that are high in antioxidant activity, which can be used in the pharmaceutical industry for nutraceuticals production.
Sustainability Based Service Quality Approach for Automated Teller Machine Network

The article presents the self-service systems quality management and evaluation framework. The framework describes three groups of imperatives aimed to ensure sustainable service provision for self-service banking clients by increasing quality of the operational, re- source and marketing services. As the outcome of the research, based on principal components analysis, we present three factors for evaluation operational service quality for automated teller machine network: ATM replenishment specifics, ATM service quality delivery and ATM ser- vice delivery structure.
Parabolic Trough Collector Cost Update for the System Advisor Model (SAM)

This report updates the baseline cost for parabolic trough solar fields in the United States within NREL's System Advisor Model (SAM). SAM, available at no cost at https://sam.nrel. gov/, is a performance and financial model designed to facilitate decision making for people involved in the renewable energy industry. SAM is the primary tool used by NREL and the U.S. Department of Energy (DOE) for estimating the performance and cost of concentrating solar power (CSP) technologies and projects. The study performed a bottom-up build and cost estimate for two state-of-the-art parabolic trough designs -- the SkyTrough and the Ultimate Trough. The SkyTrough analysis estimated the potential installed cost for a solar field of 1500 SCAs as $170/m2 +/- $6/m2. The investigation found that SkyTrough installed costs were sensitive to factors such as raw aluminum alloy cost and production volume. For example, in the case of the SkyTrough, the installed cost would rise to nearly $210/m2 if the aluminum alloy cost was $1.70/lb instead of $1.03/lb. Accordingly, one must be aware of fluctuations in the relevant commodities markets to track system cost over time. The estimated installed cost for the Ultimate Trough was only slightly higher at $178/m2, which includes an assembly facilitymore » of $11.6 million amortized over the required production volume. Considering the size and overall cost of a 700 SCA Ultimate Trough solar field, two parallel production lines in a fully covered assembly facility, each with the specific torque box, module and mirror jigs, would be justified for a full CSP plant. « less
Early Markers of Cardiovascular Disease Associated with Clinical Data and Autosomal Ancestry in Patients with Type 1 Diabetes: A Cross-Sectional Study in an Admixed Brazilian Population

Patients with type 1 diabetes (T1D) have a higher risk of developing cardiovascular disease (CVD), which is a major cause of death in this population. This study investigates early markers of CVD associated with clinical data and autosomal ancestry in T1D patients from an admixed Brazilian population. A cross-sectional study was conducted with 99 T1D patients. The mean age of the study sample was 27.6 years and the mean duration of T1D was 14.4 years. The frequencies of abnormalities of the early markers of CVD were 19.6% in the ankle-brachial index (ABI), 4.1% in the coronary artery calcium score (CACS), and 5% in the carotid Doppler. A significant percentage of agreement was observed for the comparison of the frequency of abnormalities between CACS and carotid Doppler (92.2%, p = 0.041). There was no significant association between the level of autosomal ancestry proportions and early markers of CVD. The ABI was useful in the early identification of CVD in asymptomatic young patients with T1D and with a short duration of disease. Although CACS and carotid Doppler are non-invasive tests, carotid Doppler is more cost-effective, and both have limitations in screening for CVD in young patients with a short duration of T1D. We did not find a statistically significant relationship between autosomal ancestry proportions and early CVD markers in an admixed Brazilian population.
Carboxyl-Functionalized Carbon Nanotubes Loaded with Cisplatin Promote the Inhibition of PI3K/Akt Pathway and Suppress the Migration of Breast Cancer Cells

PI3K/Akt signaling is one of the most frequently dysregulated pathways in cancer, including triple-negative breast cancer. With considerable roles in tumor growth and proliferation, this pathway is studied as one of the main targets in controlling the therapies’ efficiency. Nowadays, the development of nanoparticle–drug conjugates attracts a great deal of attention due to the advantages they provide in cancer treatment. Hence, the main purpose of this study was to design a nanoconjugate based on single-walled carbon nanotubes functionalized with carboxyl groups (SWCNT-COOH) and cisplatin (CDDP) and to explore the potential of inhibiting the PI3K/Akt signaling pathway. MDA-MB-231 cells were exposed to various doses (0.01–2 µg/mL SWCNT-COOH and 0.00632–1.26 µg/mL CDDP) of SWCNT-COOH-CDDP and free components for 24 and 48 h. In vitro biological tests revealed that SWCNT-COOH-CDDP had a high cytotoxic effect, as shown by a time-dependent decrease in cell viability and the presence of a significant number of dead cells in MDA-MB-231 cultures at higher doses. Moreover, the nanoconjugates induced the downregulation of PI3K/Akt signaling, as revealed by the decreased expression of PI3K and p-Akt in parallel with PTEN activation, the promotion of Akt protein degradation, and inhibition of tumor cell migration.