bluuebunny/crossref_metadata_2025 huggingface dataset:
Transition numérique et impacts macroéconomiques
Authors: Aubouin Mathilde
Published: June 2023

Depuis leur développement, les technologies du numérique n’ont eu qu’un impact limité sur la croissance économique. Cet article s’intéresse à ce paradoxe et étudie les impacts de la transition numérique sur l’économie. Après avoir défini les principales caractéristiques de la transition numérique, nous étudions ses similitudes et différences avec la première et seconde révolutions industrielles. Les différentes barrières qui entravent l’impact du numérique sur la croissance économique sont ensuite présentées. Enfin, l’hypothèse selon laquelle l’impact de la transition numérique ne porterait pas sur la croissance économique, mais directement sur le bien-être des individus, est développée.
Économie du travail en prison : enjeux, résultats et recommandations
Authors: Monnery Benjamin , Montagutelli Anna , Souam Saïd
Published: June 2023

En France comme ailleurs, les prisons sont confrontées au défi de préparer la réinsertion des détenus et de prévenir leur récidive. Le travail en détention offre théoriquement un moyen direct d’améliorer les perspectives de réinsertion, mais à peine plus d’un quart des détenus y ont accès aujourd'hui en France, contre 36 % il y a vingt ans. Cet article propose une synthèse des enjeux du travail pénitentiaire et de son fonctionnement. Il passe en revue les principaux travaux théoriques et empiriques sur les impacts des programmes de réinsertion, et discute des effets potentiels du travail pénitentiaire sur le bien-être social. Faisant le constat d’un manque d’offre et d’un sous-investissement public massif en France au regard des externalités en jeu, l’article propose enfin des recommandations de politique publique visant à redonner au travail pénitentiaire tout son potentiel.
Resolving set and exchange property in nanotube
Authors: Koam Ali N. A. , Ali Sikander , Ahmad Ali , Azeem Muhammad , Jamil Muhammad Kamran
Published: June 2023

Give us a linked graph, $ G = (V, E). $ A vertex $ w\in V $ distinguishes between two components (vertices and edges) $ x, y\in E\cup V $ if $ d_G(w, x)\neq d_G (w, y). $ Let $ W_{1} $ and $ W_{2} $ be two resolving sets and $ W_{1} $ $ \neq $ $ W_{2} $. Then, we can say that the graph $ G $ has double resolving set. A nanotube derived from an quadrilateral-octagonal grid belongs to essential and extensively studied compounds in materials science. Nano-structures are very important due to their thickness. In this article, we have discussed the metric dimension of the graphs of nanotubes derived from the quadrilateral-octagonal grid. We proved that the generalized nanotube derived from quadrilateral-octagonal grid have three metric dimension. We also check that the exchange property is also held for this structure.
Use of Smart Learning Resource Management Systems for Sustainable Learning
Authors: Chanyawudhiwan Gan , Mingsiritham Kemmanat
Published: June 2023

Learning resources are very important to all the stakeholders in the world of education. There is a very large number of learning resources today and they are scattered all over the internet. This study was about the development of a new smart learning resource management system called STOU SmartLearnX, which can locate and pull up digital content from the internet and social media. It has integrated technology to support independent learning via digital media. The system passed quality control evaluation by a panel of 15 experts before being tested on bachelor’s degree students enrolled in an online course emphasizing nanolearning style offered by an open university in Thailand. The 65 sample students testing the system came from Humanities and social science, Science and technology and Health science. They were given a pretest before using STOU SmartLearnX in the course and a posttest after using it, and their mean scores were compared using t-test dependent and one-way ANOVA. Mean posttest scores were higher than pretest scores to a statistically significant degree, but there was no significant difference in posttest scores between the students from the group, indicating that the system can be successfully used for learning in different subject areas. In the future the system may be further developed to make it able to deliver more precise results by utilizing advanced searches and images. Searches should take into account the context and should be responsive.
Development and Evaluation of E-Learning Courses
Authors: Dahal Niroj , Pant Binod Prasad , Luitel Bal Chandra , Khadka Jiban , Shrestha Indra Mani , Manandhar Netra Kumar , Rajbanshi Roshani
Published: June 2023

This study attempts to develop a reliable, practical, and efficient process for developing online and distance courses. The study aims to develop e-learning online and distance education courses. ICT and e-Research course development processes have shown significant learning opportunities and outcomes. A substitute for raising these opportunities is the need for innovative research in education while implementing online and distance modes of learning and teaching. Subscribing research and development research methodology, the study aims to produce e-learning instructional materials using a three-stage development model. The course, along with the learning strategy, the learning tools, the assessment tools, and other components, are designed and developed using the Plomp model, a development research model. The research participants were forty-two 2021 Winter Batch MPhil in Educational Studies students and nine lecturers at Nepal Open University (NOU), Nepal. The descriptive analysis uses data analysis to explain the online course's validity, applicability, and effectiveness. Experimental research design was developed using the one-group pre-test post-test design methodology. The most important results are results of preliminary analysis, validity: average material validation is 0.885; average media validation is 0.885 and practicality: more than 71% (very practical). This article proposes a more comprehensive framework to design, develop, and implement online and distance courses in e-learning systems in higher education.
Synthesis, Characterization, Optical and Luminescence Properties of Copper Based Metal Organic Frame Works
Authors: Pai Maya , Adimule Vinayak , Yallur Basappa C. , Batakurki Sheetal
Published: June 2023

Herein, we report synthesis of two new copper metal organic frameworks. The organic linkers were terephthalic acid with 6-Dihydroimidazo[2,1-b]thiazole-2-carbaldehyde and terephthalic acid with 3-benzothiazol-2-yl-malonaldehyde used in the copper nano metal organic framework (MOF). Both the Cu-MOF’s were characterized by XRD, UV-vis spectroscopy and FTIR. XRD crystallographic studies revealed the presence of copper metal at 2θ at 18.4°. Tauc plots were simulated to calculate the band gap of both Cu-MOF’s and result indicated the band gap energy of Cu-MOF 1 at 3.31 eV and for Cu-MOF 2 was at 3.57 eV. The UV-Visible absorption studies indicated two bands for Cu-MOF 1 and Cu-MOF 2 at 326 nm. However, the second band in Cu MOF 1 at 509 nm was slightly shifted to higher wavelength at 516 nm in Cu-MOF 2 due to the extension of π-π* transition. The photoluminescent properties of both Cu-MOF’s indicated a strong band at 505 nm. Thus, the optical properties of both the Cu-MOF’s infers that these can be a promising semiconductor material for various electronic applications.
Cross-cultural adaptation of the Greek version of post-COVID-19 Functional Status Scale: assessment of non-hospitalised post-COVID-19 survivors
Authors: Tsekoura Maria , Fousekis Konstantinos , Billis Evdokia , Dionyssiotis Yannis , Tsepis Elias
Published: June 2023

The objective of the study was to translate and validate into the Greek language and setting the Post-COVID-19 Functional Status (PCFS) scale. Greeks aged ≥18 years who recovered form COVID-19 (≥ 14 days since diagnosis), were invited to participate. This cross-sectional study followed international guidelines regarding the translation process (forward and backward) and the evaluation of the PCFS. Reliability was assessed by test–retest analyses using the intraclass correlation coefficient (ICC) and 95%CI. For the validation, all participants completed the European Quality of Life-5 (EQ-5D-5L), and the Hospital Anxiety and Depression Scale (HADS) questionnaire. 82 adults (49 females, aged 40.2 ± 6.1) participated in the study. The Greek version of the PCFS demonstrated excellent test–retest reliability, with an ICC of 0.9 (95% CI 0.90- 0.95). The Cronbach’s alpha value was 0.9, indicating good internal consistency. The PCFS score was strongly correlated with the EQ-5D-5L (r=0.6, p≤0.001) and weakly correlated with the HADS (r=0.41;p≤0.001). The Greek version of the PCFS was successfully adapted into Greek and is recommended to be used across clinical settings and research.
Choosing the Correct-Sized Adult Double-Lumen Tube: Quest for the Holy Grail
Authors: Shah Shagun Bhatia , Hariharan Uma , Chawla Rajiv
Published: June 2023

Appropriate size selection of double-lumen tubes (DLTs) for one-lung ventilation (OLV) in adults is still a humongous task. Several important factors are to be considered like patient height, gender, tracheal diameter, left main bronchial diameter, and cricoid cartilage transverse diameter. In addition to radiological assessment of the airway diameters, the manufacturing details of the particular DLT being used also play a significant role in size selection. Optimal positioning of the appropriately sized DLT is indispensable to avoid complications like airway trauma, cuff rupture, hypoxemia, and tube displacement. It is imperative to know whether the one-size-fits-all dictum holds for DLT size selection as claimed by certain studies. Further randomized studies are required for crystallizing standard protocols ascertaining the correct DLT size. This systematic review article highlights the various parameters employed for DLT size selection and explores the newer DLTs used for adult OLV.
Atrial Septal Defect Occluder Device Embolization: Experience of a Tertiary Care Cardiac Center
Authors: Garre Sandeep , Gadhinglajkar Shrinivas , Sreedhar Rupa , Krishnamoorthy K.M , Pillai Vivek V.
Published: June 2023

Background:

Percutaneous device closure of atrial septal defect (ASD) has become an increasingly popular procedure as it offers several advantages. However, it is associated with infrequent, but life-threatening complications such as device embolization.

Objective:

To analyze the risk factors, common sites of embolization, associated complications, timing of embolization, and the treatment executed.

Settings and Design:

A retrospective study was performed at a tertiary referral center for cardiac services.

Material and Methods:

Pre-procedure, intra-procedure, and post-procedure data of patients whose ASD device embolized was collected retrospectively and analyzed for risk factors, common sites of embolization, associated complications, timing of embolization, and the treatment executed.

Results:

Thirty devices were embolized, out of which 13 were retrieved percutaneously in the Catheter laboratory, whereas 17 patients underwent surgery. Fourteen patients had an unfavorable septal morphology for device closure. Ten devices were embolized in the catheter laboratory, five in the intensive care unit, and two in the ward. The devices were embolized to almost all chambers of the heart and great vessels. One patient had an inferior vena cava rim tear while attempting percutaneous retrieval. One patient required a short period of total circulatory arrest (TCA) for retrieval of the device from ascending aorta, while another required a lateral position for retrieval from descending aorta. One patient required re-exploration for bleeding, while another had an air embolism and succumbed.

Conclusions:

Once embolization occurs, the risks associated increase manifold. Most of the surgical extractions are uneventful; however, there could be certain complications that may need repair of valvular apparatus, the institution of TCA, or the need for the lateral position. Air embolization though very rare can occur which could be fatal.
Comparison of Hemodynamic Consequences of Hand Ventilation Versus Machine Ventilation for Transportation of Post-Operative Pediatric Cardiac Patients
Authors: Chauhan Ankit , Rajesh Venuthurupalli S. P. , Pujara Jigisha , Singh Guriqbal , Patel Praveen , Patel Kaushal , Pandya Himani
Published: June 2023

Learning Objective:

Hemodynamic monitoring during in-hospital transport of intubated patients is vital; however, no prospective randomized trials have evaluated the hemodynamic consequences of hand versus machine ventilation during transport among pediatric patients’ post-cardiac surgery. The authors hypothesized that manual ventilation after pediatric cardiac surgery would alter hemodynamic and arterial blood gas (ABG) parameters during transport compared to mechanical ventilation.

Design:

A prospective randomized trial.

Setting:

Tertiary cardiac care hospital.

Participants:

Pediatric cardiac surgery patients.

Materials and Methods:

One hundred intubated pediatric patients were randomized to hand or machine ventilation immediately post-cardiac surgery during transport from the operating room to the pediatric post-operative intensive care unit (PICU). Hemodynamic variables, including end-tidal CO2 (ETCO2), oxygen saturation, heart rate, systolic blood pressure (SBP), diastolic blood pressure (DBP), peak airway pressure (Ppeak), and mean airway pressure (Pmean), were measured at origin, during transport, and at the destination. ABG was measured before and upon arrival in the PICU, and adverse events were recorded. The Chi-square test and independent t-test were used for comparison of categorical and continuous parameters, respectively.

Results and Discussion:

The mean transport time was comparable between hand-ventilated (5.77 ± 1.46 min) and machine-ventilated (5.96 ± 1.19 min) groups (P = 0.47). ETCO2 consistently dropped during transport and after shifting in the hand-ventilated group, with significantly higher ETCO2 excursion than in machine-ventilated patients (P < 0.05). SBP and DBP significantly decreased during transport (at 5 and 6 min intervals) and after shifting in hand-ventilated patients than in the other group (P < 0.05). Additionally, after shifting, a significant increase in Ppeak (P < 0.001), Pmean (P < 0.001), and pH (P < 0.001), and a decrease in pCO2 (P = 0.0072) was observed in hand-ventilated patients than machine-ventilated patients. No adverse event was noted during either mode of ventilation.

Conclusion:

Hand ventilation leads to more significant variation in ABG and hemodynamic parameters than machine ventilation in pediatric patients during transport post-cardiac surgery. Therefore, using a mechanical ventilator is the preferred method for transporting post-operative pediatric cardiac patients.
The Effect of Postoperative Hepatic Fibrosis Factors on Morbidity in Mitral Valve Replacement Surgery: A Single Center Ten Years’ Experience
Authors: Yesiltas Mehmet Ali , AK Hulya Yilmaz , Ozsahin Yasemin , Sandal Baris , Salihoglu Ziya , Erkalp Kerem
Published: June 2023

Background:

Previous studies have shown that hepatic fibrosis indices and rates can be used to predict cardiovascular mortality and morbidity. Our aim with this study was to investigate the effect of aspartate aminotransferase/alanine aminotransferase (AST/ALT) ratio and fibrosis-4 (FIB-4) index calculated with ALT, AST, and platelet biomarkers, which are simple, fast, and relatively inexpensive and were used in previous studies to predict cardiovascular disease prognosis, on the prediction of postoperative morbidity and early mortality after mitral valve replacement (MVR) surgery.

Methods:

By scanning the hospital electronic health record system, 116 patients who underwent isolated MVR or MVR + tricuspid valve intervention were identified from 178 patients who underwent MVR with the standard sternotomy procedure between 2011 and 2021. The study was completed with 81 of these patients. Patients were divided into AST/ALT <2 (Group 1) and >2 (Group 2). In addition, the same patients were divided into FIB-4 index <3.25 (Group 3) and >3.25 (Group 4), and a total of four groups were formed.

Results:

The mean age of Group 2 was significantly higher than Group 1 (P = 0.049). In addition, the mean age of Group 4 was significantly higher than Group 3 (P = 0.003). Postoperative complications did not differ between Groups 1 and 2 (P > 0.05). While noninvasive mechanincal ventilation (NIMV) requirements did not differ between Groups 3 and 4 (P > 0.05), MV duration and intensive care unit stay were significantly longer in Group 4 (P < 0.05).

Conclusion:

The AST/ALT ratio, which has been shown to be a predictor of cardiovascular mortality in various studies, was not useful in predicting mortality and morbidity in our study. However, a high FIB-4 index, another hepatic fibrosis index, was found to be associated with increased perioperative bleeding, duration of mechanical ventilation, and cardiac intensive care unit stay, which are important criteria in the prediction of morbidity in cardiovascular surgery.
Effectiveness of Multimodal Care Interventions on Enhanced Recovery among the Patients Undergoing Abdominal Surgery
Authors: Barboza Hezil Reema , Dsilva Fatima , Moosaba MS , Lobo Amar Sunil
Published: June 2023

Background:

The perioperative phase includes a variety of procedures that aim to prepare the patient, physically and psychologically and prevent postoperative complications, thereby reducing the length of hospital stay.

Objectives:

This study includes the application of various measures to encourage active involvement and prompt participation of the patients in the enhanced recovery.

Materials and Methods:

A quasi-experimental design was used to evaluate the effectiveness of interventions on enhanced recovery among patients undergoing abdominal surgery at a tertiary care hospital, Mangaluru. Patients undergoing abdominal surgery between 20 to 60 years were selected as participants.

Results:

The majority of the participants (40%) belonged to the category of normal Body Mass Index (BMI) of 18.5-24.9 Kg/m2 in the experimental group and control group as per BMI categories for Asian populations. There was a significant difference in vital capacity scores between the experimental and control groups (P<0.05) on postoperative days 2 and 3. Thus it proved that deep breathing exercises are effective in improving pulmonary functions. In the experimental group, 60% received oral feed within 6 hours of surgery. The comparison of length of postoperative hospital stays in the experimental and control groups showed a significant difference between the groups (p<0.05) and the average postoperative hospital stay was 4 days in the experimental group.

Conclusion:

The enhanced surgery recovery protocol provides a faster recovery rate and fewer postoperative complications. These multimodal interventions are useful in routine practice for the optimal perioperative care for patients undergoing open abdominal surgery.
An Efficacy of Intermittent Subglottic Irrigation with 3% NaCl on Prevention of Ventilator-Associated Pneumonia
Authors: Jadhav Prerana Prakash , Mohite Vaishali Rajsinh
Published: June 2023

Background:

ventilator-associated pneumonia (VAP) is the leading cause of death associated with healthcare-associated infections, an important cause of morbidity and mortality despite advances in antimicrobial therapy and advanced supportive measures. The accumulation of subglottic secretions above the endotracheal tube (ETT) cuff, as these secretions may leak around the cuff of the ETT resulting in aspiration and an increased risk for infection of VAP.

Objective:

(1) To assess the efficacy of intermittent subglottic irrigation with 3% NaCl for the prevention of VAP. (2) To assess the association between VAP in the experimental and control group with demographic variables.

Materials and Methods:

A quantitative research approach and an experimental research design were used for the present study. Simple random sampling technique using a lottery method was used for the selection of the sample.

Results:

The study revealed that on comparison of VAP for the experimental and control group on days 2nd and 3rd, there is a significant association found. Second day P = 0.003 Significant (S), 3rd day P < 0.0001(S). On 1st day, the experimental group revealed that there is a significant association (P = 0.003) between the duration of the mechanical ventilator and VAP, on the 2nd day, the control group shows the duration of the mechanical ventilator was associated with VAP (P < 0.0001).

Conclusion:

The conclusion drawn from the present study is intermittent subglottic irrigation with 3% NaCl was effective on the prevention of VAP.
Efficacy of Nesting on Physiological Parameters among Preterm Babies Admitted at Tertiary Care Hospital Karad
Authors: Nikam Priyanka Nivas , Naregal Prakash Mallikarjun , Mohite Vaishali Rajsinh , Karale Rajashri Bhagwat
Published: June 2023

Background:

Preterm babies have immature physical growth and unstable physiology. Inability to cope up to external stress. They frequently have improper muscular tone due to infancy, which puts them at risk of having abnormal posture. Nesting provides physiological, cognitive and postural stability, comfort and helps preterm infants maintain their posture.

Objective:

To assess physiological parameters among control group and experimental group, to evaluate the effectiveness of nesting on physiological parameters in preterm babies and to find an association between physiological parameters with selected sociodemographic variables.

Materials and Methods:

An evaluative research approach with a systematic random sampling technique, 60 preterm babies were selected (30 experimental group and 30 control group) from Krishna Hospital and Medical Research Center, Karad. Experimental pretest–posttest control group design was used. Data were collected by using observational checklist.

Results:

Unpaired t-test results revealed that the calculated t value of physiological parameters in posttest comparing between the experimental and control group shows that 5 days of nesting has stabilized the physiological parameters and was found statistically significant at P < 0.05, i.e., temperature t = 4.917, heart rate t = 2.283, respiration t = 2.676 and SpO2 saturation t = 10.940. In weight, the calculated t = 0.8653 and found no statistically significant at P = 0. 3904.

Conclusion:

Study concluded that nesting was effectively stabilizing the physiological parameters of preterm babies (temperature, heart rate, respiration rate, SpO2, and weight).
Use of Critical Care Ultrasound in Saudi Arabia
Authors: Abdelshafey Eslam Elsayed , Abdalkreem Nashwa S. , Altayar Ashraf S.
Published: June 2023

Basic skills and knowledge of critical care ultrasonography (CCUS) are considered mandatory in intensive care unit (ICU) practice. A link for the survey questionnaire [ Appendix 1 rsqb; was distributed to attendees of critical care meetings from different regions in Saudi Arabia about the topics of CCUS availability, use for diagnosis, and intervention. Responses were recorded for 48 h from launching on 1st day. We received 172 full responses, 95% of responders claimed that they have their own ultrasound machines in their units. In the opinion of 85.5% of the responders, the need for CCUS in ICU is mandatory and 14% of responders see it as optional. A significant positive association was found between responders' years of experience and obstacles to use CCUS (P < 0.001), while there was no significant association regarding responders' specialties, work region in Saudi Arabia and type of hospital they are working in (P = 0.509, 0.081, and 0.122, respectively).
Some surfaces with canonical map of degree 4
Authors: Fallucca Federico , Pignatelli Roberto
Published: June 2023

In this note, we construct unbounded families of minimal surfaces of general type whose canonical map has a degree of

4

such that the limits of the slopes

K^2/\chi

assume countably many different values in the closed interval

[6+\frac23 ,8]

.
Eastern Equine Encephalitis Virus Diversity in Massachusetts Patients, 1938–2020
Authors: Langsjoen Rose M. , Key Autum , Shariatzadeh Nima , Jackson Christopher R. , Mahmood Faisal , Arkun Knarik , Alexandrescu Sanda , Solomon Isaac H. , Piantadosi Anne
Published: June 2023

Eastern equine encephalitis virus (EEEV) is a relatively little-studied alphavirus that can cause devastating viral encephalitis, potentially leading to severe neurological sequelae or death. Although case numbers have historically been low, outbreaks have been increasing in frequency and scale since the 2000 s. It is critical to investigate EEEV evolutionary patterns, especially within human hosts, to understand patterns of emergence, host adaptation, and within-host evolution. To this end, we obtained formalin-fixed paraffin-embedded tissue blocks from discrete brain regions from five contemporary (2004–2020) patients from Massachusetts, confirmed the presence of EEEV RNA by in situ hybridization (ISH) staining, and sequenced viral genomes. We additionally sequenced RNA from scrapings of historical slides made from brain sections of a patient in the first documented EEE outbreak in humans in 1938. ISH staining revealed the presence of RNA in all contemporary samples, and quantification loosely correlated with the proportion of EEEV reads in samples. Consensus EEEV sequences were generated for all six patients, including the sample from 1938; phylogenetic analysis using additional publicly available sequences revealed clustering of each study sample with like sequences from a similar region, whereas an intrahost comparison of consensus sequences between discrete brain regions revealed minimal changes. Intrahost single nucleotide variant (iSNV) analysis of four samples from two patients revealed the presence of tightly compartmentalized, mostly nonsynonymous iSNVs. This study contributes critical primary human EEEV sequences, including a historic sequence as well as novel intrahost evolution findings, contributing substantially to our understanding of the natural history of EEEV infection in humans.
Effects of Surface Compound Layer on Bending Fatigue Strength of Nitrided Chromium-Molybdenum Steel
Authors: Kubota Tsuyoshi , Umezawa Osamu
Published: June 2023

Carburized and quenched materials with high fatigue strength are often used for motorcycle engine parts. Nitrided materials exhibit less deformation during heat treatment than carburized and quenched materials, so if the same or higher fatigue strength can be achieved with nitrided materials as with carburized and quenched materials, the geometric precision of parts can be increased and we can reduce engine noise as well as power loss. When the fatigue strengths of a nitrided material with its compound layer surface put into γ’ phase through nitriding potential control (hereafter, G), and a nitrided material put into ε phase (hereafter, E) were measured, the results showed the fatigue strength of the G to be about 11% higher than that of carburized and quenched materials. It was inferred that the strength of the compound layer determines fatigue strength. The reason the fatigue strength of the G is higher is that initial cracks do not readily form, and it can be inferred that when cracks do form, they progress readily and lead to final fracture. In the case of the E, it is thought that when the stress intensity factor, ΔK, due to initial cracks exceeds the threshold of the stress intensity factor range, ΔKth (≃5.9MPam), it leads to fatigue fractures. While the G has higher fatigue strength than carburized and quenched materials, it is likely to have a big effect on microcrack fatigue strength. This is a factor we believe requires consideration when designing engine parts for strength and in planning part manufacturing.
High Efficiency by Miller Valve Timing and Stoichiometric Combustion for a Naturally Aspirated Single Cylinder Gas Engine
Authors: Judith Jörn , Neher Denis , Kettner Maurice , Schwarz Danny , Klaissle Markus
Published: June 2023

Small-scale cogeneration units (Pel < 50 kW) frequently use lean mixture and late ignition timing to comply with current NOx emission limits. Future tightened NOx limits might still be met by means of increased dilution, though both indicated and brake efficiency drop due to further retarded combustion phasing and reduced brake power. As an alternative, when changing the combustion process from lean burn to stoichiometric, a three-way-catalyst allows for a significant reduction of NOx emissions. Combustion timing can be advanced, resulting in enhanced heat release and thus increased engine efficiency.

Based on this approach, this work presents the development of a stoichiometric combustion process for a small naturally aspirated single cylinder gas engine (Pel = 5.5 kW) originally operated with lean mixture. To ensure low NOx emissions, a three-way-catalyst is used. In order to achieve high engine efficiency, measures implemented include Miller valve timing, optimized intake system, reduced engine speed and increased compression ratio. In the first step, a detailed 1D engine cycle simulation model was used to investigate the efficiency benefit of Miller valve timing and increased compression ratio. Within the numerical study, inlet valve closing timing and intake pipe length were varied, yet a closed-loop control was implemented to maintain a constant effective compression ratio of 14.66 by adjusting geometrical compression ratio for each configuration. Subsequently, the most expedient valve timing was designed using multi-body simulation of the inlet valve train, while increased compression ratio was achieved by modifying the series piston bowl geometry.

Engine trials agree with simulation results and show highest efficiency for a Miller valve timing closing +15 °CA later to the series valve timing and geometrical compression ratio of 15.36. Compared to the series lean burn engine, indicated and brake efficiency increase by 3.2 %-points to 39.0 % and by 3.9 %-points to 34.4 %, respectively, while maintaining original brake power of Pe = 6.1 kW. Finally, an experimental study accompanied by 3D-CFD simulations was conducted to investigate the potential of optimized piston geometry to further increase efficiency. However, results reveal only minor effect of piston geometry on efficiency, what is likely stemming from interrelation of combustion efficiency, wall heat losses and heat release rate.
Butyl (IIR) Rubber Phosphate Ester Resistant 65 - 75
Authors:   AMS CE Elastomers Committee
Published: June 2023

This specification covers a butyl (IIR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.
Brake-Stroke Indicator Design Guideline for Cam or Disc Air-Brake Actuators
Authors:   Truck and Bus Brake Actuator Committee
Published: June 2023

This SAE Recommended Practice shall cover mechanical-brake adjustment limit stroke indicators for actuators with visible exposed pushrods and electrical-brake adjustment limit stroke indicators for all air-brake actuators.

This device shall indicate the foundation brake(s) may require adjustment or service when inspected per vehicle manufacturer's procedures. A measurement shall be made to determine actual stroke measurement for any system not factory calibrated.

Stroke indication accuracy of an air-brake actuator can be assured only when all of its components are supplied by the original brake actuator manufacturer.
Strategy Of Professional Zakat Fundraising In Zakat Management Institutions
Authors: Ashfahany Afief El , Savitri Wulan Galuh , Anggraeni Sheila Putri
Published: June 2023

This study aims to analyze the strategy of professional zakat fundraising to increase Muzakki's trust. The research was conducted at zakat management institutions, namely at LAZ Al-Abidin, LAZISMU UMS, and LAZISMU in Solo. The method used in this research is a qualitative approach. Data collection techniques include in-depth interviews with related parties, documentation and literature. The results of this study indicate that professional zakat at LAZ Al-Abidin, LAZISMU UMS, and LAZISMU Solo has increased yearly. However, there is a problem at LAZ Al-Abidin and LAZISMU, namely the low level of public understanding of professional zakat, while for LAZISMU UMS, it is about regional coverage. The fundraising strategy carried out by LAZ Al-Abidin and LAZISMU UMS in increasing Muzakki's trust by carrying out data transparency, and increasing teamwork abilities, while LAZISMU Solo expanded marketing and created attractive reports. The strategy carried out by each zakat management institution can gain the trust of the Muzakki so that it can increase the receipt of professional zakat. This research has implications for developing the theory of professional zakat regarding fundraising strategy.
Tourist Loyalty Antecedents On Halal Tourism In Yogyakarta
Authors: Hendrawan Helmi Maulana , Muslichah Istyakara
Published: June 2023

Halal tourism is being developed to enhance Islamic law-based destinations' social, cultural, and destination values. However, the determinants influencing the antecedents of tourist loyalty to halal tourism have yet to be studied extensively. This study aims to analyze the role of antecedents of traveller loyalty in halal tourism in Yogyakarta. SEM-based quantitative research was used for its analysis. The study involved 200 participants, with the main criteria being that they had visited tourist destinations in Yogyakarta. The participants were selected by purposive sampling and then given an online questionnaire containing statements according to the research variables. All data were analyzed with SEM-AMOS. The findings show that the halal tourism experience, value perception, and satisfaction influence traveller loyalty. In contrast, traveller satisfaction is influenced by the halal tourism experience and value perception. Hence, the better the management of halal tourism in Yogyakarta, the more it contributes to increasing traveller satisfaction, which has implications for traveller loyalty. This research provides perspectives and technical and theoretical implications for entrepreneurs, governments, and managers of halal tourism destinations to increase socialization activities and intensify the concept of halal tourism, which has been proven to have a positive and significant effect on satisfaction and loyalty.
Islamic Consumption Principle And Religiosity Toward Muslim Community Consumption Behavior
Authors: Putriana Putriana
Published: June 2023

Islamic consumption behavior must reflect a Muslim's closeness to Allah, obtained in the right way, reasonable, transparent, not wasteful, not redundant, not excessive, and there are limits on consumption. For this reason, Muslims in consuming must comply with the rules of Islamic teachings. This study aims to analyze and demonstrate the effect of Islamic consumption principles and religiosity on the consumption behavior of Muslim communities. The methodology used is quantitative with the SEM-SmartPLS analysis tool. The population in this study is the entire productive Muslim community in Pekanbaru, whose exact number is unknown. The sampling technique of this study was carried out using random sampling of 107 Muslim communities. The study results show that the principle of Islamic consumption does not affect the consumption behavior of Islamic society. Religiosity positively and significantly affects the consumption behavior of the Islamic community. The principle of Islamic consumption and religiosity can simultaneously explain the consumption behavior of Muslim society by 56.7% and have a strong relationship. This research theoretically can make religiosity a theoretical basis and measure Muslim society's consumption behavior. While practically, it can be a reference in prioritizing beliefs or faith, religious practices, religious knowledge, experiences, and consequences on the consumption behavior of Muslim communities.
Mardin İli Kiraz Üreticilerinin Bitki Koruma Uygulamalarında Bilinç Düzeylerinin Belirlenmesi
Authors: KAPLAN Mehmet , AYAZ Tarkan
Published: June 2023

Bu çalışma 2021 yılında kiraz üretiminin yoğun olarak yapıldığı Mardin ili Ömerli ilçesi kiraz üreticilerinin bitki koruma uygulamalarında bilinç düzeylerini belirlemek amacıyla ele alınmıştır. Örnekleme tesadüfi olarak yapılmıştır. İki ilçede tesadüfi olarak seçilen toplam 10 köyde, 87 adet üreticiyle yüz yüze yapılan 20 soruluk anket metoduyla alınan bilgiler ve sonuçların değerlendirilmesi yüzde oran üzerinde hesaplanmıştır. Kiraz çiftçilerin, eğitim düzeylerinin yüksek ve çoğunluğunun tarımla birlikte başka gelirinin olduğu belirlenmiştir. Kiraz üreticilerinin zirai ilaç seçiminde ve dozunu karar vermede ilaç bayiliklerinden ve Tarım ve Orman İl/İlçe Müdürlüklerinden bilgi almaktadır. İlacın seçiminde marka ve etkili maddenin önemli olduğu, sürekli karşılaştıkları zararlı ve hastalık etmenlerle mücadelede devamlı aynı zirai ilacı uygulamadıkları, kendilerince önceden tedbir amaçlı olarak zararlı ve hastalıklar görülmeden ilaçlamaya başladıkları, ilaçların uygulamasında tavsiye edilen dozda kullandıkları, zirai ilaçların ürünlerde kalıntı bıraktığını, son ilaçlama ile hasat zamanı arasındaki bekleme sürelerine uyduklarını, ilaçların uygulamaları zamanında koruyucu kıyafet ve maske kullandıklarını, boş ilaç kutularını gelişigüzel etrafa atmadıkları, ilaçlama aletlerini yıkadıkları fakat ilaçlama makinalarını kalibrasyon yapmadan kullandıkları, zirai ilaçları karıştırarak uyguladıklarını, zarlı ve hastalık etmenleriyle mücadelede kimyasal savaş yanında kültürel önlemleri de uyguladıklarını fakat Biyopestisit hakkında bilgiye sahip olmadıkları saptanıştır.

Üreticilerin tarımsal üretimde bitki zararlı ve hastalıklarla mücadelede sorunlarının çözümünde genellikle kimyasal mücadeleye yönelmekte, böylece bilinçsizce yapılan kimyasal uygulamaları insan sağlığı ve ekolojik çevre olumsuz etkilenmektedir.
El profetismo en la Carta de Santiago
Authors: García Araya Alfonso
Published: June 2023

La carta de Santiago suele ser presentada por los estudio­ sos como un escrito fuertemente arraigado en la tradición sapiencial de Israel. Pero una mejor comprensión de su mensaje exige ampliar sus claves y perspectivas de lecturas, por ello en el presente trabajo se realiza una aproximación al carácter profètico de la carta y de su mismo autor. Y se muestra que, además de recoger y usar numerosos materiales procedentes de la tradición profètica, el escrito y su autor se sitúan en la senda del mejor profetismo de Israel por los temas que le preocupan y desarrolla, por el gènero literario o la forma de expresión que utiliza, así como por la sensibilidad que evidencia, por la actitud que adopta y la respuesta que da a la problemática realidad que viven los destinatarios de sus palabras.
Sacerdocio radicalmente nuevo. Cristo y su sacerdocio "profético" y misericordioso en la Carta a los Hebreos
Authors: De Burgos Núñez Miguel
Published: June 2023

La cristología de la carta a los Hebreos está determinada por el sacerdocio de Cristo. Esa presentación magistral viene precedida por el principio de “Cristo como kerygma del Padre” (cc. 1-2), en que se pone de manifiesto el papel profético de Jesús, lo que debe ser valorado en su justa medida. Aunque es verdad que el sacerdocio de Cristo, lo más exclusivo de todo el NT, pone de manifiesto una visión particular y original de lo que se quiere afirmar. Es un sacerdocio de solidaridad con sus hermanos; se trata de un sacerdocio misericordioso y, por ello, no estamos simplemente ante un título exótico que el autor rescata exegéticamente de Gn 14; la cristología del sacerdocio de Cristo nos hace asomarnos al papel kenótico de su sacerdocio: compasivo y semejante a sus hermanos. No es un sacerdocio de casta, sino de solidaridad fraternal para acercarnos al misterio de Dios. Se debe entender que estamos ante un sacerdocio compasivo, humano, que es lo que llevará a la exaltación de ese sacerdocio,. La comparación con el himno de Filipenses (Flp 2,5-11) es muy sugerente. Y no menos decisivo es que ese sacerdocio trae para la humanidad un “alianza nueva” que implica para los cristianos una conciencia de salvación y liberación; una nueva concepción de la santidad de Dios y de lo divino; y, en definitiva, se quiere mostrar una religión de absoluta confianza en Dios y en la obra salvífica de Cristo.
Sacerdote y jóvenes: ¿una relación difícil?
Authors: Rojano Martínez Jesús
Published: June 2023

El artículo estudia la relación del sacerdote actual con los jóvenes de cara a la acción pastoral. Se reconocen y se describen enprimer lugar una serie de serias dificultades que hacen más difícil que en otras épocas dicha relación, como son la alarmante disminución de nivel de religiosidad juvenil y la mala imagen que tienen los jóvenes españoles de lo institucional-eclesial, que les aleja especialmente del sacerdote y de los demás ministros ordenados. Para responder a esta situación complicada se dan algunas pistas y propuestas pastorales, tomando como punto de partida algunos elementos de reflexión sacados del Nuevo Testamento y del magisterio papal reciente.
Towards the Links of Cryptanalytic Methods on MPC/FHE/ZK-Friendly Symmetric-Key Primitives
Authors: Chen Shiyao , Guo Chun , Guo Jian , Liu Li , Wang Meiqin , Wei Puwen , Xu Zeyu
Published: June 2023

Symmetric-key primitives designed over the prime field Fp with odd characteristics, rather than the traditional Fn2 , are becoming the most popular choice for MPC/FHE/ZK-protocols for better efficiencies. However, the security of Fp is less understood as there are highly nontrivial gaps when extending the cryptanalysis tools and experiences built on Fn2 in the past few decades to Fp.At CRYPTO 2015, Sun et al. established the links among impossible differential, zero-correlation linear, and integral cryptanalysis over Fn2 from the perspective of distinguishers. In this paper, following the definition of linear correlations over Fp by Baignères, Stern and Vaudenay at SAC 2007, we successfully establish comprehensive links over Fp, by reproducing the proofs and offering alternatives when necessary. Interesting and important differences between Fp and Fn2 are observed.- Zero-correlation linear hulls can not lead to integral distinguishers for some cases over Fp, while this is always possible over Fn2proven by Sun et al..- When the newly established links are applied to GMiMC, its impossible differential, zero-correlation linear hull and integral distinguishers can be increased by up to 3 rounds for most of the cases, and even to an arbitrary number of rounds for some special and limited cases, which only appeared in Fp. It should be noted that all these distinguishers do not invalidate GMiMC’s security claims.The development of the theories over Fp behind these links, and properties identified (be it similar or different) will bring clearer and easier understanding of security of primitives in this emerging Fp field, which we believe will provide useful guides for future cryptanalysis and design.
EFFECTIVE APPROACH FOR FACE RECOGNITION AND ACTIVE SHAPE 3D MODELS USING KERNEL PRINCIPAL COMPONENT ANALYSIS
Authors: Surya Kant Prajapati  , Mrs. C.Navamani
Published: June 2023

Face Recognition is a computer application that is capable of detecting, tracking, identifying or verifying human faces from an image or video captured using a digital camera. Although lot of progress has been made in domain of face detection and recognition for security, identification and surveillance purpose, but still there are issues hindering the progress to reach or surpass human level accuracy. These issues are variations in human facial appearance such as; varying lighting condition, noise in face images, scale, pose etc. Kernel principal component analysis (KPCA) as a powerful nonlinear feature extraction method has proven as a preprocessing step for classification algorithm. A face recognition approach based on KPCA and genetic algorithms (GAs) is proposed. By the use of the polynomial functions as a kernel function in KPCA, the high order relationships can be utilized and the nonlinear principal components can be obtained. After that nonlinear principal components, we use GAs to select the optimal feature set for classification.
Zero Leak in Tractors
Authors: Vinoth G  , Samhitha Pavuluri  , Dr.B.Shridar
Published: June 2023

The concept of zero leak in tractors refers to the achievement of a completely sealed hydraulic system, where there is no fluid leakage from any of the hydraulic components. This can be accomplished by using high-quality seals, ensuring proper installation and maintenance, and incorporating advanced hydraulic technology. The benefits of zero leakage in tractors include increased efficiency, reduced environmental impact, reduce the customer complaints and improved safety. However, achieving zero leakage can be challenging, requiring careful design and manufacturing processes. Nonetheless, it is an important goal for the tractor industry, and ongoing research and development are focused on achieving this objective.
Study of Concrete Frame Structure of Commercial Building with Floating Column
Authors: Bhavani Nithya R  , Ram Prakash M  , Mr.Saravanaraja R  , Dr.Thirumalai Raja K
Published: June 2023

The planning process is the art and science of design with the construction that is economical, robust and durable. This project is primarily based on code Design and Analysis of Frame Buildings. The entire standard planning and design process requires thinking, knowledge, and reflection. Analysis and design of G+2 storey commercial buildings using IS criteria. Analysis and all samples were generated by and analyzed by STAAD Pro. software. All the drawing and detailing was done by AutoCAD, which was also the basis for the conversion of structure to analysis and design in STAAD Pro. Floors, beams, stairs, etc. in this project. It design adopts the IS: 456-2000. Consider the difference between the positions of members pursuant to IS; 875-1987 (Part 1, Part 2, Part 3). Therefore, the construction of buildings has been planned as per the Indian National Building Code.
Ruski svijet kao moralna zajednica i vanjskopolitička doktrina
Authors: Bajt Marko Boris , Buzar Stipe
Published: June 2023

U radu autori tematiziraju pojam ruski svijet kao vrijednosni i civilizacijski koncept u službi ruske vanjske politike. Glavna ideja ruskog svijeta je da postoji odjelita ruska civilizacija koja je dominantna kulturi susjednih država, ali i zapadnoj civilizaciji od koje se bitno razlikuje u kulturnim i moralnim vrijednostima. Pojam ruskog svijeta ima dugu povijest koja počinje 1990-ih godina. Već u prvom desetljeću Putinove vladavine sadržajno se mijenja i promiče među središnje pojmove ruske vanjskopolitičke doktrine i prakse. Pojam ruskog svijeta je fluidan, njegovi su elementi često međusobno proturječni, a uživa značajnu podršku Ruske pravoslavne Crkve koja mu daje duhovni blagoslov i omogućava njegovo šire prihvaćanje. Također je prijeporan jer zemljama u susjedstvu ostavlja tek ograničenu suverenost u donošenju odluka, dok Rusiji služi kao sredstvo opravdanja intervencija u njihove unutrašnje poslove.
Informacije narušenog integriteta
Authors: Milas Ante Josip , Dunđer Ivan
Published: June 2023

U suvremenom informacijskom prostoru izloženi smo mnogobrojnim informacijama među kojima su i informacije narušenog integriteta. Iako manipulacije informacijama u javnom informacijskom prostoru nisu novost, njihova količina i brzina diseminacije putem internetskih društvenih mreža i komunikacijskih operativnih sustava predstavljaju novi izazov i ugrozu za nacionalnu sigurnost demokratskih država. U javnom prostoru se koristi nekoliko različitih termina kojima se nastoji objasniti da je integritet informacije plasirane u javni prostor bitno narušen što za posljedicu ima terminološko i kognitivno nerazumijevanje. Ovaj rad istražuje i teorijski određuje vrste informacija narušenog integriteta kao što su zlonamjerna i pogrešna informacija te dezinformacija. Potom rad prikazuje primjere institucionalnog suzbijanja širenja informacija narušenog integriteta na internetu i prikazuje ugrozu koju one predstavljaju za nacionalnu sigurnost demokratskih društava.