bluuebunny/crossref_metadata_2025_split huggingface dataset:
فاعليّة الأمل في أدب الرسائل: الرسالة التشفّعيّة لأبي إسحاق الصابي نموذجًا
Authors: El Bakkali (محمّد سعيد البقالي) Mohammed Said 
Published: March 2023

المستخلص
‫تُعَدّ الرسالة التشفّعيّة نمطًا نثريًّا مؤهّلًا لتوليد الأمل واختبار فاعليّته، وإن لم يكن ظاهرًا فيها، وذلك لدوره البارز في استثارة الحسّ العاطفيّ لكلّ أطراف العمليّة التواصليّة وفي مقدّمتهم المشفوع إليه. يحاول هذا المقال تقصّي مختلف العوامل المسهمة في توليد الأمل في الرسالة التشفّعيّة، بما في ذلك الحجج التي تحمل قيمةً عاطفيّة تناسب المقام، وتركّز على استمالة المتلقّي بمختلف الطرق. ويلفت الانتباه إلى ما أملَتْه ظروف الحياة الخاصّة بالعاملين في فلك السلطة، وهو ما جعل وظائف الرسالة التشفّعيّة نفعيّة وعمليّة بما هي مكاتبات تُرسَل إلى كبار الشخصيّات كالخلفاء والرؤساء والأمراء والوزراء من أجل استعطافهم واستدرار شفقتهم للمشفوع له. وتبدو الرسالة التشفّعيّة بمثابة خيط الأمل الرفيع الذي يتشبّث به كلّ طرف، وتُتيح دراسة نموذجٍ لأبي إسحاق الصابي الوقوف على ذلك، لعنايته بتفاصيل الرسالة عناية خاصّة على مستوى اختيار الألفاظ وصوغ المعاني، وخاصّة صِيَغ الدعاء. فبيّنت أنّ إمكانات التوقّع في هذه الرسائل تكون مرتبطة أشدّ الارتباط بالأمل، أملِ قبول الشفاعة والإذعان للطلب الذي تكفّلت به الرسالة.‬
Investigation into the effects of foaming variables on the cellular structure and expansion ratio of foamed TPU using response surface methodology
Authors: Wang Jiankang , Fa Houjian , Lu Hongwei 
Published: March 2023

Thermoplastic polyurethane elastomer (TPU) foams were prepared using the high-pressure autoclave with supercritical fluid carbon dioxide (SC-CO2). The effects of foaming variables (i.e. saturation temperature, saturation pressure, and depressurization rate) on cellular structure and expansion ratio were investigated. The model between expansion ratio and foaming variables was constructed using the Box-Behnken design (BBD) of response surface methodology (RSM), and analysis of variance (ANOVA) was conducted to evaluate the validity and significance of the model. Finally, the interactive effects of foaming variables on the expansion ratio were investigated, and the expansion ratios of maximum and center point from numerical model were verified by experiment. The result showed higher saturation pressure and depressurization rate resulted in the more uniform cellular structure and higher cell density, however the higher saturation temperature resulted in the bigger cell and nonuniform structure. The ranges of average cell diameter and cell density were 15.26–45.4 μm and 0.32 × 108 to 6.24 × 108 cells/cm3, respectively. The model obtained using BBD of RSM was valid to predict the expansion ratio in the design window. The saturation temperature was the most important factor influencing the expansion ratio. With the increase of saturation temperature, the expansion ratio always increases in the design window. The maximum expansion ratio from numerical optimization was 4.91, which was located at saturation temperature 190°C, saturation pressure 12.51 MPa, and depressurization rate 5 MPa/s, and the corresponding experiment value was 4.56. The error between them was 7.13%.
Greek validation of the user version of the Mobile Application Rating Scale (uMARS)
Authors: Chasiotis Georgios , Stoyanov Stoyan R , Karatzas Anastasios , Gravas Stavros 
Published: March 2023

Objective The original user version of the Mobile Application Rating Scale (uMARS) is an English-language questionnaire that was designed to allow non-expert app users to assess the quality of health apps. We aimed to translate into the Greek language and validate the uMARS. Methods This was a qualitative prospective study. The World Health Organization translation process was followed and a readily available and free-of-charge app was used for the validation process. Internal consistency and reliability were tested twice within one month by 91 Greek medical students. Results The total uMARS score showed excellent internal consistency (Cronbach’s alpha = 0.86). The internal consistencies of its subscales were also very high (engagement alpha = 0.71; functionality alpha = 0.71; aesthetics alpha = 0.67; information alpha = 0.63), with the notable exception of the satisfaction alpha, which was 0.61. The uMARS total score demonstrated almost perfect agreement levels in most of the subscales according to the rWG index from baseline to 1 month. Conclusions The Greek uMARS is a reliable and valid tool for assessing the quality of mobile apps.
Relationship between Helicobacter pylori virulence genes and gastroduodenal disease
Authors: Wattanawongdon Wareeporn , Simawaranon Bartpho Theeraya , Tongtawee Taweesak 
Published: March 2023

Objective This study aimed to identify Helicobacter pylori virulence factors and examine their associations with clinical outcomes in Thai patients. Moreover, the association between these genotypes and gastric mucosa morphological patterns was investigated. Methods This retrospective study enrolled patients who underwent esophagogastroduodenoscopy at Suranaree University of Technology Hospital. The presence of the cagA and vacA genes was investigated by real-time polymerase chain reaction. Results The H. pylori-specific genes ureA and 16S rRNA were detected in all 698 gastric biopsy specimens. In total, 567 (81.23%) patients with H. pylori infection were positive for the cagA gene, 443 (63.46%) were positive for the vacA gene, and 370 (53.0%) were positive for both. The cagA genotype was significantly more common in patients with chronic gastritis and peptic ulcers (78.99% and 79.41%, respectively) than the vacA gene (51.48% and 55.88%, respectively) and combined genotypes (32.34% and 47.05%, respectively). Moreover, the cagA genotype was significantly more common in patients with type 4 or 5 gastric mucosa patterns (69.49% and 76.31%, respectively). Conclusions The cagA genotype is the main cause of serious inflammation of the gastric mucosa. The cagA gene is possibly an important factor explaining gastroduodenal disease outcomes in Thai patients with H. pylori infection.
Cognitive stimulation and activities of daily living for individuals with mild-to-moderate dementia: A scoping review
Authors: Ryan Simone , Brady Orla 
Published: March 2023

Introduction:Dementia is a progressive syndrome that interferes with the individual’s ability to perform activities of daily living (ADL). Cognitive stimulation (CS) is a non-pharmacological approach aimed to mitigate the impact of dementia symptoms. While CS has been shown to provide benefits for cognition and quality of life, the evidence supporting its use in improving ADL outcomes is reduced. The aim of this review was to chart what is known from the literature about the use of CS in improving ADL outcomes.Method:A scoping review of the use of CS in improving ADL outcomes for individuals with mild-to-moderate dementia was conducted, following a scoping review methodological framework. Eight databases were searched, including all articles published up until June 2022.Findings:A three-step search strategy yielded 788 results. Following screening and review, 36 papers met the inclusion criteria for this review. Studies were charted and discussed in the areas of (1) cognitive stimulation therapy; (2) group CS programmes; (3) multi-component CS interventions; (4) individual CS programmes and (5) other types of CS.Conclusion:The review identified a range of CS programmes from across 13 countries worldwide. Multi-component CS interventions involving ADL-focused activities reported the most benefits for ADL outcomes.
The Effects of Arthroscopic Labral Repair on Patient-Reported Outcomes in the Setting of Periacetabular Osteotomy
Authors: Flemig Alison J. Dittmer , Selley Ryan S. , Essilfie Anthony , Robustelli Stacy , Schneider Brandon L. , Ranawat Anil , Nawabi Danyal , Kelly Bryan T. , Sink Ernest L. 
Published: March 2023

Background: It is currently unknown whether the addition of arthroscopic labral repair in the setting of periacetabular osteotomy (PAO) provides any clinical benefit. Purpose/Hypothesis: The purpose of this study was to compare outcomes of patients who underwent arthroscopic labral repair concomitantly with PAO versus patients who underwent PAO alone. We hypothesized that there would be no difference in patient-reported outcome measures (PROMs) between the cohorts. Study Design: Cohort study; Level of evidence, 3. Methods: Patients undergoing PAO from a single-center prospective hip preservation registry were eligible for this study if they completed pre- and postoperative PROMs (minimum, 1 year). PROMs were collected at 1 year, 2 years, and latest follow-up at 6.05 years for PAO group and 4.2 years for scope/PAO group. The study group consisted of 53 patients who underwent arthroscopic labral repair at the time of their PAO, and the comparison group consisted of 170 patients who underwent PAO alone. A subset of the PAO group who had radiologic evidence of a detached labral tear (n = 33) was also compared with the rest of the PAO-alone group. PROMs were compared at every time point for both groups as well as the subset of patients who underwent PAO alone despite a labral tear. Results: The mean follow-up of all patients was 2 years (range, 1-6 years). Overall, 85.2% of the PAO group and 85.7% of the scope/PAO group met the minimal clinically important difference for either the modified Harris Hip Score (mHHS) or the International Hip Outcome Tool (iHOT-33) at the most recent follow-up. There was no difference in improvement between groups (mHHS, P = .670; iHOT-33, P = .944). Patients who had a radiologically diagnosed detached labral tear and underwent PAO alone had no difference in outcomes when compared with the rest of the PAO cohort (mHHS, P = .981; iHOT-33, P = .909). Conclusion: There was no significant benefit measured by PROMs at follow-up for concomitant arthroscopic labral repair in the setting of PAO.
Late ophthalmologic manifestations of monkeypox in a Latin American immunosuppressed patient
Authors: Ayala-Rivera Victor David , Padilla-Pantoja Fabio Daniel 
Published: March 2023

Background The re-emergence of Monkeypox (MPX) and its related ophthalmic disease represent a clinical challenge in the initial stages because of the presence of lesions like those caused by varicella zoster, syphilis, and other infections due to other poxviruses. Human Immunodeficiency Virus (HIV) infection and secondary immunodepression raise the risk of severe and prolonged disease. Purpose We present the case of a young immunosuppressed male patient with MPX, who presented with multiple skin lesions, also including risky ophthalmological manifestations due to extensive eyelid involvement. Conclusions We describe a novel form of late-onset conjunctivitis and eyelid lesions, without active extraocular disease, highlighting the heterogeneous behavior of the new clinical form of MPX, that exhibits a wide spectrum of lesions in different stages of evolution.
Modification of the inverted flap technique compared to conventional internal limiting membrane peeling in complete macular hole surgery
Authors: Carballés M.J. Crespo , Sastre-Ibáñez M. , Cura M. Prieto Del , Hoz R. De , Garcia-Saenz M.C. 
Published: March 2023

Aim To describe the efficacy of a modification of the superior inverted flap technique, with maculorrhexis, in vitrectomy for full-thickness macular hole (MH) surgery compared to internal limiting membrane peeling (ILM). Methods Retrospective and comparative study of patients with MH. In group A, a superior ILM flap is created to cover the macular hole, and in group B conventional ILM peeling was performed. Results A total of 80 eyes were included (44 group A and 36 group B). MH closure occurred in 100% in group A and 91.67% in group B (p = 0.0869). There were more U-type closures in group A(90.91%) than in group B(58.33%), p = 0.0017. Both groups showed Best corrected visual acuity (BCVA) improvement at 3 and 6 months. At 3 months BCVA in group A was significantly better but at 6 months results were similar. Ellipsoid layer (EZ) recovery at 6 months was achieved in 81.82% patients in group A and 52.78% in B (p = 0.005), and external limiting membrane in 81.82% in group A and 69.44% in B (p = 0.1957). Conclusions The superior inverted flap maculorrhexis technique is suitable for idiopathic MH treatment, with better anatomical and non-inferior functional results than the classic ILM peeling. It achieves functional recoveries earlier, better BCVA and greater gains at 3 months compared to the classic ILM peeling. It also obtains a higher number of U-shaped closures and higher EZ restorations.
Biocompatibility and Biofunctionality of a Gelatin Impregnated Polyester Arterial Prosthesis
Authors: Chakfé Nabil , Marois Yves , Guidoin Robert , Deng Xiaoyan , Marois Michel , Roy Raynald , King Martin , Douville Yvan 
Published: March 2023

The gelatin-impregnated vascular graft Gelseal® and its parent Triaxial® graft were evaluated in terms of biocompatibility in rats and in vivo biofunctionality as a thoraco-abdominal bypass in dogs. The biocompatibility study was performed by implantation of small segments of graft in the peritoneal cavity of rats for scheduled periods of upto 4 weeks. Peripheral total T cells (CD3), T helper cells (CD4) and T suppressor cells (CD8) and activated T cells expressing IL-2 receptors were quantified by cytofluorometry. Enzymatic and histopathological analyses of the tissue at the implant site were also performed. In the rat, the Gelseal® graft induced a significant reduction of CD4 cells at 3 days, 1 and 4 weeks post-implantation when compared to the control group (wounded rats without prosthesis). On the other hand, the Triaxial® graft showed similar results to the control group except for a significant reduction of CD4 cells after 1 week. The percentage of CD3, CD8 and activated T cells expressing IL-2 receptors were similar to the control group. There was no statistical difference in acid phosphatase activity in the tissue surrounding the Gelseal® and the Triaxial® grafts. Histological studies of the impregnated graft have revealed an inflammatory reaction with polymorphonuclear cells which lasted slightly longer than the 2 weeks observed for the non-impregnated polyester control. Thereafter, the inflammatory response of both grafts became chronic and moderate. The investigation of in vivo biofunctionality was carried out by implanting the grafts as a thoraco-abdominal bypass in dogs for prescheduled periods of up to 6 months. The grafts were investigated for patency, morphology, healing sequerice, fibrin and platelet uptake and prostaglandin secretion. The healing characteristics of the Gelseal® graft were similar to the preclotted control. All grafts remained patent, and the small differences in platelet and fibrin uptake on the luminal surface between the impregnated and non-impregnated grafts were not statistically significant. The two healing sequences were also similar with the development of a collagenous internal capsule at 2 weeks post-implantation followed by the laying-down of endothelial-like cells at 1 month. The gelatin coating had completely eroded within the first month, at which time the PGI 2/ TXA 2 ratios determined on whole segments of grafts was higher than one. The Gelseal® graft has shown good biocompatibility and excellent healing characteristics as a thoraco-abdominal bypass in dogs and compares favourably with its parent graft the Triaxial® polyester prosthesis.
Blends and Composites Based on Polypropylene and a Thermotropic Liquid Crystalline Polymer
Authors: Heino Markku T. , Vainio Tommi P. , Seppälä Jukka V. 
Published: March 2023

Blends of polypropylene (PP) and liquid crystalline polymer (LCP) processed without melting the LCP were compared with conventional melt processed blends. In a first stage, PP was blended with 20 wt.% of LCP in a twin-screw extruder with the take-up speed varied to achieve blends with different LCP fibre dimensions. In the second stage these blends were processed both below and above the T m of the LCP by extrusion and injection moulding. At lower temperatures (180–200°C), where the material was processed without melting the LCP, a real composite structure was formed with solid LCP fibres in the PP matrix. When processed above the T m of the LCP (280°C) all the material was molten during processing and a composite-like blend morphology was created in-situ during cooling of the oriented melt phase. These blends exhibited a skin/core morphology, whereas the composites contained fibres throughout the sample. Due to this difference the impact strength of the composites was significantly higher than that of the blends. The blends exhibited higher modulus than the composites. Moreover, additional drawing can greatly improve the strength and stiffness of the blends. In composites the solid LCP fibres slightly increased the viscosity of PP, while in blends the molten LCP reduced the matrix viscosity and acted as a processing aid.
FRP Corrosion Resistance: The Role of the Glass Fibre Type
Authors: Santrach Drago , Matzeg Rick 
Published: March 2023

The corrosion resistance studies of glass fibre reinforced plastics (RP) have primarily compared the resins and the surfacing veil materials using the ASTM C581 standard test method. As the corrosion barrier has been shown to delay and not stop the acid attack on the structural layers of the laminate, the more recent papers, by several authors, highlight the importance of the reinforcing fibres. In particular, the use of ECRGLAS® fibres is recommended in RP laminates subjected to the simultaneous stresses of mechanical loading and exposure to dilute material acids. A brief overview of the most pertinent literature related to the present work is given. The experimental data on the resistance of RP laminates to corrosion attack in aqueous solutions of both sodium hydroxide and sulphuric acid is discussed. This work comprises a two level fraction factorial experiment design to study five factors: the glass fibre type (E vs. E-CR), the resin type (isophthalic vs. bisphenol A), the laminate construction (mat/mat/mat vs. mat/woven roving/mat), the exposure media type (sodium hydroxide vs. sulphuric acid) and the acid/base ion concentration (IN vs. 2N). The laminates are compared using mechanical properties, and their retention, after exposure to the corrosive environments for up to 4 years. Analysis of this study shows that E-CR glass offers improved performance compared to E glass in both environments. E-CR glass is significantly more resistant to sulphuric acid attack over long term exposure. In sodium hydroxide, E-CR glass performs better than E glass in the short term of up to 10 months. Neither glass type is able to resist sodium hydroxide attack in the long term. The resin type also plays a significant role in the corrosion resistance but mainly in the long run and primarily insodium hydroxide medium. The ion concentration and the laminate type are much less significant. The two glass types are also compared using C581 methodology. Again, E-CR outperforms E glass in the acidic environment and this effect increases with the increase in the exposure time. ECRGLAS® is a registered trademark of Owens-Corning Fiberglas Corporation. Fiberglas Canada Inc. is a registered user.
Styrene Crosslinked Vinylesters II: Water Sorption, Water Diffusion and Cohesive Properties
Authors: Bellenger V. , Verdu J. , Ganem M. , Mortaigne B. 
Published: March 2023

The sorption characteristics (water equilibrium concentration W m and coefficient of diffusion D) were determined gravimetrically for six styrene crosslinked vinylester networks at 30, 40 and 50°C, 95 % RH. The equilibrium water concentration (0.5 -1.8% by weight) is independent of the temperature and appears to be closely related to the concentration of polar groups (especially hydroxyls) in the polymer. It is an increasing function of the solubility parameter. The water diffusivity is of the same order of magnitude as that of unsaturated polyesters but considerably higher than that of hydrophilic amine crosslinked epoxies. There is no apparent correlation between D and volumetric properties such as the packing density, crosslink density or local mobility determined from viscoelastic spectra. In contrast, the fact that D is a decreasing function of the hydrophilicity for all the systems under consideration (including unsaturated polyesters and epoxies) seems to indicate that water diffusion is kinetically controlled by the strength of polymer-water interactions.
Experimental Verification on Simulating Shrinkage and Warpage of Thin Compression Moulded SMC Parts
Authors: Osswald Tim A. , Sun Esther M. , Tseng Shi-Chang 
Published: March 2023

One of the important issues in designing plastic parts, especially those that are fibre reinforced, is to predict shrinkage and warpage of the moulded parts. Shrinkage and warpage result from material inhomogeneities caused by flow induced fibre orientation, curing, poor thermal mould lay-out, and processing conditions. Shrinkage and warpage are directly related to residual stresses which result from locally varying strain fields that occur during the curing or solidification stage of a manufacturing process. This paper presents research conducted in numerical simulation and experimental investigation of the shrinkage and warpage of compression moulded fibre reinforced composite parts. A coupled temperature and stress simulation program with a three-noded shell element formulation was developed to calculate the residual stress build-up during curing and solidification stages of a compression moulding process. The numerical model also included the spring forward effect present in curved parts. Correlation between experimentally measured and simulated shrinkage and warpage of the moulded composites is presented for various geometries and processing conditions. The simulated results have shown excellent agreement with the experimental data. The results indicated that fibre orientation distributions which vary with different charge locations have a significant effect on the final warpage. Shrinkage and warpage can be substantially reduced by using lower shrinkage polyester matrix or by increasing the fibre content within the charge. Unsymmetric curing caused by uneven mould temperatures leads to a thermal moment which could increase or possibly even reduce warpage of a finished part. Preheating or increasing the fibre content of the charge could also help reduce the final warpage. The spring forward effect was found to be significant in large-curved parts.
Studies on Self-Crosslinking Blend System Based on Polychloroprene and Polyacrylamide: Cure Characteristics, Physical Properties and Degradation
Authors: Kole S. , Tripathy D.K. , De P.P. 
Published: March 2023

Polychloroprene and polyacrylamide form a self-crosslinking blend during mixing and moulding in the temperature range 140 to 190°C and mis inter-crosslinking is revealed by a torque rise in the rheometric studies. The nature of the stress-strain curves of the blend indicates the generation of a bonded structure where one soft matrix is bonded with a rigid phase and the bonding fails after a critical loading. The results of hysteresis measurements are in agreement with a bonded structure. The SEM study shows that the majority of the polyacrylamide particles are covered with a layer of rubber matrix. It also shows the distribution of particles and the extent of breakdown of the particles in various blends. The SEM observations are also in line with interfacial bonding and help in understanding the physical properties of various blends based on the extent of inter-crosslinking reaction. Thermogravimetric analysis of aqueous solutions, cast film, and dry powdered of polyacrylamide confirms the role of moisture in polyacrylamide degradation. It also confirms that although polychloroprene imparts some water resistance to the polyacrylamide component, it still remains degradable by water.