bluuebunny/crossref_metadata_2025 huggingface dataset:
Relationships Among Perceived Value, Satisfaction, and e-Trust: An e-CRM View of Online Restaurant Consumption
Authors: Zhang Gang , Wang Zongshui , Zhao Hong
Published: November 2020

This paper aims to propose a new trend in research which integrates the online customer relationship management through the perspectives of perceived value, satisfaction, and e-trust regarding the online restaurant in Chinese e-CRM business backgrounds. This study constructs a structural equation model to analyze the online restaurant marketing with the research perspective of the relationships among perceived value, satisfaction and e-Trust, corresponding to the cognitive belief, affective experiences and cognitive behavior of e-CRM. This model proposes six hypotheses concerning the relationships among perceived value, satisfaction and e-trust, aiming to demonstrate the predominant factors affecting the online restaurant sales and further to have a better understanding of the customers’ preferences on placing orders and purchases in the online context. The results show that there is a series of connections among perceived value, satisfaction and e-trust, and most of them are important. First, the perceived value has an incentive effect on satisfaction, e-trust, and customers’ commitment to a relationship. Second, satisfaction has a positive impact on e-trust and leads to the commitment to a relationship. Third, e-trust positively affects the consumer commitment to a relationship. In addition, production quality, service quality and price fairness have a significant impact on the perceived value.
Alloying the Melt of Sliding Bearings Based on Babbitt
Authors: Sheleg V. K. , Levantsevich M. A. , Pilipchuk Y. V. , Kravchuk M. A. , Bogdanovich I. A. , Bogdanova T. Ya.
Published: November 2020

Abstract.A device design is proposed that makes it possible to obtain composite castings of sliding bearings based on babbitt by mixing alloying additives from antifriction powders of solid lubricants (graphite, molybdenum disulfide, etc.) into the melt, having a density significantly lower than the density of babbitt itself.  The principle of mixing is based on the use of  numerous turbulent flows resulting from the rotation of a gating rod with a wire pile in the melt material, the packing density coefficient of which is not less than 0.1. Due to the suction effect of these flows, non-metallic particles of solid lubricant powder do not float to the surface of the melt and, after crystallization, remain in the body of the casting. The supply of alloying powder of solid lubricant is carried out simultaneously with the supply of  the babbitt melt through the central and distribution gating channels made in a rotating rod. Under the action of centrifugal forces, powder particles and melt material flow through distribution channels to the walls of the mold (mold), passing through the rotation zone of the metal pile. In this case, intensive mixing of the powder particles with the melt material occurs due to the suction effect of turbulent flows arising behind the moving pile. In addition, as a result of the rotation of the wire pile, dendritic constituents are crushed in babbitt castings.  Metallographic studies of the castings obtained on the developed device have shown that the structure of the casting obtained by traditional technology contains large quantities of solid crystals of intermetallic compounds SnSb and Cu3Sn, while in the structure of the casting obtained using the proposed device, along with the aforementioned intermetallic compounds, particles of solid lubricant C + MoS2powder embedded in the crystallized melt are observed.
Prediction of Penetration Rate for PDC Bits Using Indices of Rock Drillability, Cuttings Removal, and Bit Wear
Authors: Mazen Ahmed Z. , Rahmanian Nejat , Mujtaba Iqbal , Hassanpour Ali
Published: November 2020

Predicting rate of penetration (ROP) has gained considerable interest in the drilling industry because it is the most-effective way to improve the efficiency of drilling and reduce the operating costs. One way to enhance the drilling performance is to optimize the drilling parameters using real-time data. The optimization of the drilling parameters stands on the fact that drilling parameters are interrelated; that is, corrections in one factor affect all the others, positively or negatively.

Analysis of the available models in the literature showed that they did not take into account all factors, and therefore, they might underestimate the ROP. To improve the accuracy of predicting the bit efficiency, a new ROP model is developed to preplan and lower the drilling costs. This approach introduces three parts of the process that were developed to describe the challenge of predicting ROP: aggressiveness or drillability, hole cleaning, and cutters wear, which are interrelated to each other. The approach discusses each process individually, and then the influence of all three factors on ROP is assessed. Taking into account the drilling parameters and formation properties, ROP1 is estimated by use of a new equation. Then, lifting the produced cutting to the surface and evaluating how that affects the bit performance is proposed in the second part of the process (hole cleaning). Finally, wear index is introduced in the third part (wear condition) to predict the reduction of ROP2 caused by cutter/rock friction.

The approach serves and could be considered as a baseline to identify all factors that can affect the bit performance. The developed model equations are applied to estimate ROP in three vertical oil wells with different bit sizes and lithology descriptions in Libya. The results indicate that the driven model provides an effective tool to predict the bit performance. The results are found in good agreement with the actual ROP values and achieve an enhancement of approximately 40% as compared to the previous models.
A Novel Double-Group Crosslinked Hydrogel with High Thixotropy for Water Control in Horizontal Wells
Authors: Li Gang , Chen Lifeng , Fu Meilong , Wang Lei , Chen Yadong , Chen Lei , Zeng Huiyong
Published: November 2020

Horizontal wells that are completed with slotted liners often suffer from a severe water-production problem, which is detrimental to oil recovery. It is because the annulus between the slotted liners and wellbore cannot be fully filled with common hydrogels with poor thixotropy, which determines the ultimate hydrogel filling shape in the annulus. This paper presents a novel hydrogel with high thixotropy to effectively control water production in horizontal wells. This study is aimed at evaluating the thixotropic performance, gelation time, plugging performance, and degradation performance. The thixotropic performance of the new hydrogel was also investigated by measuring its rheological properties and examining its microstructures. It was found that the new hydrogel thickened rapidly after shearing. Its thixotropic recovery coefficient was 1.747, which was much higher than those of traditional hydrogels. The gelation time can be controlled in the range of 2 to 8 hours by properly adjusting the concentrations of the framework material, crosslinker, and initiator. The hydrogel could be customized for mature oil reservoirs, at which it was stable for more than 90 days. A series of laboratory physical modeling tests showed that the breakthrough pressure gradient and the plugging ratio of the hydrogel in sandpacks were higher than 9.5 MPa/m and 99%, respectively. At the same time, it was found that the hydrogel has good degradation properties; the viscosity of the hydrogel breaking solution was 4.22 mPa·s. Freeze-etching scanning-electron-microscopy examinations indicated that the hydrogel had a uniform grid structure, which can be broken easily by shear and restored quickly. This led to the remarkable thixotropic performance. The formation of a metastable structure caused by the electrostatic interaction and coordination effect was considered to be the primary reason for the high thixotropy. The successful development of the new thixotropic hydrogel not only helps to control water production from the horizontal wells, but also furthers the thixotropic theory of hydrogel. This study also provides technical guidelines for further increasing the thixotropies of drilling fluids, fracturing fluids, and other enhanced-oil-recovery polymers that are commonly used in the petroleum industry.
Feasibility Study of Dual-Function Chemical in Reducing Surfactant Adsorption and Interfacial Tension for Chemical Enhanced Oil Recovery Application
Authors: Md Akhir Nur Asyraf , Hamid Afif Izwan , Saaid Ismail Mohd , Idris Ahmad Kamal , Nik Norizam Nik Nor , Yusof Nik Kamarulzaman
Published: November 2020

The performance of a low-cost and biodegradable dual-function chemical was evaluated based on its attainment in reducing the interfacial tension (IFT) and surfactant adsorption in synthetic seawater at a temperature of more than 90°C. The phase behavior, interfacial tension, and static adsorption tests were conducted for the feasibility study of a dual-function chemical for a chemical enhanced oil recovery application. The experimental matrices were constructed using Design Expert (Stat-Ease, Minneapolis, Minnesota, USA). Alkyl ether carboxylate (AEC) and amido propyl betaine (APB) were identified for the study to be tested with the dual-function chemical at a temperature of more than 90°C in synthetic seawater. In the phase behavior study, the volume ratio of the aqueous phase to the Malaysian crude oil was kept 1:1. The interfacial tension between the surfactant and dual-function chemical system against the crude oil was performed by using a spinning drop method. Meanwhile, the static adsorption was conducted by using the crushed core at room temperature for up to 30 days, and the analysis was conducted using a high-performance liquid chromatography method. In comparison with two types of surfactants, the dual-function chemical works best with the AEC surfactant in order to reach an ultralow interfacial tension (less than 10−3 mN/m) within 60 minutes. An ultralow interfacial tension for APB surfactant can only be obtained at an earlier time. In contrast, the phase behavior study for AEC and APB surfactants and dual-function chemical obtained was a Type II(−) microemulsion. In the static adsorption study, the dual-function chemical (>0.5 wt%) significantly helped in reducing the adsorption of AEC and APB surfactants by up to 73%. Based on the obtained results, the dual-function chemical worked more efficiently when compounded with AEC than APB surfactant at the same surfactant concentration and reservoir conditions. The findings of this feasibility study are worthwhile for the potential application of dual-function chemical for chemical enhanced oil recovery.
SARS-CoV-2 infection leads to cardiac pericyte loss, fibrosis, cardiomyocyte hypertrophy, and diastolic dysfunction
Authors: Daems Margo , Liesenborghs Laurens , Cuijpers Ilona , Boudewijns Robbert , Raman Jana , Simmonds Steven , Geuens Nadèche , Lox Marleen , Verhamme Peter , Linthout Sophie Van , Heymans Stephane , Tschoepe Carsten , Neyts Johan , Jones Elizabeth
Published: November 2020

Recovered COVID19 patients often display cardiac dysfunction, even after a relatively mild infection. Here, we present the first histological description of cardiac SARS-CoV-2 infection. Within the heart, the ACE2 receptor is mostly expressed by pericytes. Using a COVID19 hamster model, we demonstrate SARS-CoV-2 is replicating in pericytes, and reduced pericyte density is present after infection. In healthy animals, pericytes recover; however, when metabolic comorbidities are present, they fail to recover. These latter animals present with cardiac fibrosis, cardiomyocyte hypertrophy, and early signs of diastolic dysfunction, resembling HFpEF. Biopsies from recovered COVID19 patients showed similar results, with pericyte loss being present.
Excess deaths in the fragility fracture population during the first wave of the COVID-19 pandemic due to altered care pathways
Authors: Norrish Alan , Ikram Adeel , Ollivere Luke , Nightingale Jessica , Valdes Ana , Ollivere Benjamin
Published: November 2020

This study of fragility fracture patients demonstrated non-COVID-19 related mortality was significantly higher during the pandemic period (14.7% n=728) than in controls (10.2%; HR=1.86; 95%CI 1.41-2.45; p<0.0001 n=1014). This is associated with a significant decrease in length of stay, both for the whole group and for the hip fracture subgroup. Altered care-pathways and aggressive discharge criteria during the pandemic are likely responsible for the increase in excess deaths.
Prevalence And Risk Factors Of Internet Addiction Among Hungarian High School Teachers
Authors: Toth Gabor , Kapus Krisztian , Hesszenberger David , Pohl Marietta , Kosa Gabor , Kiss Julianna , Pusch Gabriella , Fejes Eva , Tibold Antal , Feher Gergely
Published: November 2020

The extensive availability of internet has led to the the recognition of problematic internet use (so called internet addiction, IA) mostly involving adolescents. There is insufficient data about the prevalence of IA in adults. Here we present a study focusing on the prevalence and risk factors of internet addiction among high school teachers.Overall 2500 paper-based questionnaires were successfully delivered and 1817 responses received (response rate of 72.7%). 1194 females (65.7%) and 623 males (34.3%) participated in our study.In a multivariate analysis including of all factors (demographic data, internet habits, comorbidity etc) age < 35 years (OR: 6.098, CI: 5.09-7.08, p<0.001), male gender (OR=5.413, CI: 4.39-6.18, p=0.002), surfing on the internet > 5 hours daily (OR 2.568, CI: 2.03-3.39, p<0.001), having no children (OR: 1.353, CI: 1.13-1.99, p=0.0248), and having secondary employment (OR=11.377, CI: 8.67-13.07, p=0.001) were significantly associated with internet addiction.This is the first study from Hungary showing the prevalence and risk factors of internet addiction among high school teachers. A small, but significant proportion suffered from IA. Our study also draws attention to the risk factors of IA such as younger age, family status and working type.
Assessing the relationship self-medication with chronic condition self-medication: analytic-descriptive study.
Authors: Varpaei Hesam Alidn , Onsori Pariya , Esmaeili Faeze , Abachi Saba , Nouroozi Pedram , Farahani Amir Mahdi , Miremami Mohammad Mahdi , Kazami Ali
Published: November 2020

Background: Chronic disease is a stable condition of human health that refers to the disease or its effects or the effects that occur over time. Lack of awareness in chronic patients can be challenging, as it provides the basis for self-medication. This study was performed to investigate the prevalence of self-medication in people with chronic disease and the factors affecting it.Materials and Methods: A cross-sectional study was conducted in Tehran from January to March 2020 and targeted people living in Tehran.Results: The prevalence of self-medication in healthy individuals was 64% and in chronic patients was 90%. The most important reason for self-medication in patients was having an old prescription and easy availability in healthy individuals. Analgesics and cold medications were the most commonly used. Headache, muscle aches, and runny nose were the most common symptoms / illnesses of self-medication. Self-medication was significantly associated with chronic illness, duration of disease, number of chronic disease medications, and study of medication instructions (P <0.05).Conclusion: The prevalence of self-medication among people with chronic diseases is significantly higher due to having a previous prescription or for economic reasons such as the high price of doctor visits and this is a health problem that needs to be addressed. Income, smoking, duration of chronic illness, number of medications taken by the patient and reading medication instructions (drug catalog or brochure) are some of the factors affecting self-medication. One of the simple steps for health promotion in chronic conditions is to educate chronic patients properly that might mitigate the complications of self-medication and prevent dire consequences of inappropriate medication use.
Higher serum lactate dehydrogenase level predicts poor outcome of aneurysmal subarachnoid hemorrhage after microsurgery
Authors: Zheng Shu-Fa , Wang Hao-Jie , Chen Guo-Rong , Shang-Guan Huang-Cheng , Yu Liang-Hong , Lin Yuan-Xiang , Lin Zhang-Ya , Yao Pei-Sen , Kang De-Zhi
Published: November 2020

We explored the clinical significance of serum LDH level in aSAH patients after microsurgical clipping in our single institution, to test the hypothesis that higher serum LDH level predicts the outcome of aSAH patients at 3 months. A total of 2054 aSAH patients were collected, and 874 patients treated by microsurgical clipping were enrolled. And the serum LDH level within 24 hours after aSAH were recorded. The median serum LDH level (U/L) in the good outcome group (180.096±50.237) was obviously lower than that in the poor outcome group (227.554±83.002)(p=0.000). The area under the receiver operating characteristic (ROC) curve was 0.702(95% confidence interval [CI], 0.650 - 0.754; p=0.000). The optimal cutoff value for serum LDH level as a predictor for 3-month poor outcome (mRS>2) was determined as 201.5U/L in the ROC curve. Our finding showed that that higher serum LDH level correlated with Hunt & Hess grade, Fisher grade and neurological functional outcome, and predicted the outcome of aSAH at 3 months, which was involved in the related mechanisms of early brain injury and showed its great clinical significance in aSAH patients.
Heterotrophic Euglenid Rhabdomonas Costata Resembles Its Phototrophic Relatives in Many Aspects of Molecular and Cell Biology
Authors: Soukal Petr , Hrdá Štěpánka , Karnkowska Anna , Milanowski Rafał , Szabová Jana , Hradilová Miluše , Strnad Hynek , Vlček Čestmír , Čepička Ivan , Hampl Vladimir
Published: November 2020

Euglenids represent a group of protists with diverse modes of feeding. To date, only a partial genomic sequence of Euglena gracilis and transcriptomes of several phototrophic and secondarily osmotrophic species are available, while primarily heterotrophic euglenids are seriously undersampled. In this work, we begin to fill this gap by presenting genomic and transcriptomic drafts of a primary osmotroph, Rhabdomonas costata. The current genomic assembly length of 100 Mbp is 14× smaller than that of E. gracilis. Despite being too fragmented for comprehensive gene prediction, comparison of the transcriptomic and genomic data revealed features of its introns, including several candidates for nonconventional introns. 16 % of transcripts bear a recognizable partial splice leader sequence. A set of 39,585 putative R. costata proteins were predicted from the transcriptome. Annotation of the mitochondrial core metabolism provides the first data on the facultatively anaerobic mitochondrion of R. costata, which in most respects resembles the mitochondrion of E. gracilis with certain level of streamlining. R. costata synthesises heme by a mitochondrial-cytoplasmatic C4 pathway with enzymes orthologous to those found in E. gracilis. The low percentage of green algae-affiliated genes, supports the ancestrally osmotrophic status of this species.
Synthetic Observational Health Data with GANs: from slow adoption to a boom in medical research and ultimately digital twins?
Authors: Geogres-Filteau Jeremy , Cirillo Elisa
Published: November 2020

After being collected for patient care, Observational Health Data (OHD) can further benefit patient well-being by sustaining the development of health informatics and medical research. Vast potential is unexploited because of the fiercely private nature of patient-related data and regulations to protect it. Generative Adversarial Networks (GANs) have recently emerged as a groundbreaking way to learn generative models that produce realistic synthetic data. They have revolutionized practices in multiple domains such as self-driving cars, fraud detection, digital twin simulations in industrial sectors, and medical imaging. The digital twin concept could readily apply to modelling and quantifying disease progression. In addition, GANs posses many capabilities relevant to common problems in healthcare: lack of data, class imbalance, rare diseases, and preserving privacy. Unlocking open access to privacy-preserving OHD could be transformative for scientific research. In the midst of COVID-19, the healthcare system is facing unprecedented challenges, many of which of are data related for the reasons stated above. Considering these facts, publications concerning GAN applied to OHD seemed to be severely lacking. To uncover the reasons for this slow adoption, we broadly reviewed the published literature on the subject. Our findings show that the properties of OHD were initially challenging for the existing GAN algorithms (unlike medical imaging, for which state-of-the-art model were directly transferable) and the evaluation synthetic data lacked clear metrics. We find more publications on the subject than expected, starting slowly in 2017, and since then at an increasing rate. The difficulties of OHD remain, and we discuss issues relating to evaluation, consistency, benchmarking, data modelling, and reproducibility.
Determining the different mechanisms used by Pseudomonas species to cope with minimal inhibitory concentrations of zinc via comparative transcriptomic analyses
Authors: Lei Lei , Chen Jiahui , Liao Weifang , Liu Pulin
Published: November 2020

Pseudomonas is one of the most diverse bacterial genera identified in the environment. Genome sequence analysis has indicated that this genus can be clustered into three lineages and ten groups. Each group can adopt different mechanisms to thrive under zinc-depleted or high-zinc conditions, two environments that are frequently encountered during their environmental propagation. The response of three prominent Pseudomonas strains (Pseudomonas aeruginosa PAO1, Pseudomonas putida KT2440, and Pseudomonas fluorescens ATCC 13525T) to minimal inhibitory concentrations of zinc were compared using RNA-seq and ultra-performance liquid chromatography–tandem mass spectrometry analysis. Results demonstrated that the three strains shared only minimal similarity at the transcriptional level. Only four genes responsible for zinc efflux were commonly upregulated. P. aeruginosa PAO1 specifically downregulated the operons involved in siderophore synthesis and the genes that encode ribosomal protein, while upregulated the genes associated with antibiotic efflux and cell envelope biosynthesis. The membrane transporters in P. putida KT2440 were globally downregulated, indicating changes in cell permeability. Compared with P. aeruginosa PAO1 and P. putida KT2440, the most remarkable transcriptional variation in P. fluorescens ATCC 13525T is the significant downregulation of the type Ⅵ secretion system. Metabolite quantitative analysis showed that low concentrations of the metabolites involved in central carbon metabolism and amino acid synthesis were detected in the three strains. In summary, the cellular responses of the three strains under high-zinc condition is quite divergent. Although similar metal efflux systems were upregulated, the three strains employed different pathways to reduce zinc intrusion. In addition, zinc treatment can increase the difficulties of scavenging P. aeruginosa from its colonisation area, and reduce the competitiveness of P. fluorescens in microbiota.
ISLAMIC POPULISM IN POST-TRUTH INDONESIA
Authors: Rubaidi Rubaidi
Published: November 2020

This article examines the rise of Islamic populism in post-truth Indonesia. It particularly discusses the proliferation of Islamic populism narratives in social media that lead to hoaxes and hate speeches which appeared in series of political elections. This article argues that there has been a similar pattern of Indonesian form of populism to that of other parts of western countries, particularly the US and the UK. Like populism in the latter two countries, the issue of “indigeneity” has generated the reproduction of post-truth narrates, ranging from false-news, hoaxes, and hate-speeches, blaiming the so-called “foreign” elements of the country. Islamist mobilisation is central to explain the proliferation of post-truth politics which cultivates tensions and divisions among society and reserves as a threat to democratic consolidation in contemporary Indonesia.
MODIFIED APPROACH OF FORCE APPLICATION IN IZC MINI-IMPLANT FOR ARCH DISTALIZATION BY ELASTOMERIC CHAIN
Authors: Mukesh Kumar  , Manish Goyal  , Ashish Kushwah  , Shashank Soni
Published: November 2020

Distalization of whole arch required an appropriate force of application along with sound knowledge of biomechanics. After development of mini-implants it became quite easy because it doesn't need patient compliance which was a problem in olden days with conventional extraoral appliances. Introduction of extra-radicular mini-implant (IZC mini-implant) in orthodontics makes complete arch distalization single step procedure in comparison to intra-radicular mini-implants (conventional TADs) which we have to reposition due to root approximation. This article represents a modified approach of Elastomeric chain application in IZC mini-implant for whole arch distalization.
ENDOSCOPIC ASSISTED APPROACH TO FACIAL FRACTURES
Authors: Vikas K. Singh  , Ruchika Tiwari  , Gaurang Thanvi  , Chalana Ashish , Anuj Mathur  , Alankrita Sisodia
Published: November 2020

Endoscopic exploration and repair of sub-condylar and ramal fractures of the mandible is technically feasible, and, though there is a steep learning curve, once experience is gained, it can be performed in a reasonable amount of time. There have been no permanent facial nerve injuries to date, and the functional results seem to be satisfactory. Of the 5 sub-condylar and ramal fractures, plate fixation was achieved at primary endoscopic repair in all the patients. It remains for prospective studies to determine the relative safety and effectiveness of this procedure.
COURSE-KEEPING CONTROL FOR DIRECTIONALLY UNSTABLE LARGE TANKERS USING THE MIRROR-MAPPING TECHNIQUE
Authors:   Navigation College, Dalian Maritime University, Dalian 116026, China, Chunjiang Bai , Hui Wang , Tingting Ju , Hanwen Shi
Published: November 2020

This study examines the course-keeping control of directionally unstable large oil tankers involving a pole in the right half plane. Treated as an unstable plant in control engineering, tankers are theoretically and experimentally investigated during the controller design process. First, the unstable plant is mirror-mapped to its corresponding stable minimum phase plant using the mirror-mapping technique, which enables an easy controller design. Then, a linear proportional-differential and a first-order filter controller is designed based on the closed-loop gain shaping algorithm, which requires only one controller parameter to be properly selected based on the system’s characteristics. Numerical simulation results confirmed that the designed controller can successfully stabilise an unstable plant subjected to external wind and wave disturbances. The controller designed with the proposed method is suitable for course-keeping control of directionally unstable large tankers. The controller design method is simple with an uncomplicated structure that can easily be implemented in engineering endeavours. Moreover, the rudder motion is small and soft.
PREVENTION OF RESPIRATORY MUSCLE DYSFUNCTION DUE TO DIAPHRAGM ATROPHY IN CHILDREN WITH RESPIRATORY FAILURE
Authors: Filyk Olha
Published: November 2020

The aim of the study was to determine whether diaphragm-protective mechanical ventilation can prevent diaphragm atrophy in children with respiratory failure. Materials and methods. We complete the prospective single-center cohort study. Data analysis included 82 patients 1 month - 18 years old, divided into I group (lung-protective MV) and II group (diaphragm-protective in addition to lung-protective MV). Patients were divided into age subgroups. Stages of the study: 1st day (d1), 3rd (d3), 5th (d5), 7th (d7), 9th (d9), 28th (d28). We studied changes in diaphragm thickness at the end of exhalation and compared them with these indicators at patient`s admission to the study (baseline). Primary endpoint was length of stay in ICU, secondary endpoints were complications (prolonged MV). Results are described as arithmetic mean (X) and standard deviation (σ) with level of significance p. Results. There were significant differences in length of stay in ICU among patients of the 1st and 5th age subgroups: in 1st age subgroup this data was in 1.3 times lower in II group, compared with I group (p <0,05); in 5th age subgroup the situation was the opposite - length of stay in ICU was in 1.4 times higher in II group, compared with I group (p<0.05). There were no patients who required lifelong mechanical ventilation in any of the groups. Changes in the thickness of the diaphragm, which indicate its atrophy, were the most significant among patients of the first, second, third and fourth age subgroups and the severity of atrophy was higher among patients of group I, compared with patients of group II. Conclusions. Diaphragm-protective mechanical ventilation significantly prevents diaphragm atrophy in children with respiratory failure in 2nd, 4th, and 5th age subgroups. Providing goal-directed diaphragm-protective MV might reduce the length of stay in ICU among patients of 1st and 5th age subgroups. There were no observed complications like lifelong mechanical ventilation in both patient`s group.
Implicitni stavovi prema posvojenoj djeci – treba li budućim stručnjacima (dodatna) edukacija o temi posvojenja?
Authors:   Dječji vrtić Vrbik, Zagreb, Vučković Josipa , Modić Stanke Koraljka ,   Filozofski fakultet, Sveučilište u Zagrebu, Zagreb
Published: November 2020

Prema National Adoption Attitudes Survey (2002) polovina Amerikanaca za posvojenu djecu smatra da će vjerojatnije imati probleme u ponašanju i školovanju, a trećina da će vjerojatnije imati medicinske probleme i probleme s drogom/alkoholom te manje vjerojatno biti sretna, samopouzdana i dobro prilagođena. Slični rezultati dobiveni su i na stručnjacima – školskim savjetnicima, socijalnim radnicima i obiteljskim terapeutima, što upozorava na mogućnost stigmatizacije posvojene djece, čak i kod profesionalaca koji (im) pružaju podršku i pomoć. S ciljem istraživanja te teme u Hrvatskoj ispitivali smo implicitne stavove prema posvojenoj djeci kod budućih stručnjakinja (psihologinja, socijalnih radnica i učiteljica) te ispitali njihovu informiranost i potrebu za edukacijom o posvojenju. Studentice (N = 255) su po slučaju pridijeljene jednoj od četiri skupine. Nakon čitanja jedne od četiri vinjete (biološko/posvojeno dijete × 1/2 roditelja) trebale su procijeniti osobine, potrebu za stručnom pomoći te potencijalne buduće probleme opisanog djeteta. Studentice su osobine i buduće probleme djeteta procjenjivale neovisno o načinu formiranja obitelji, ali su ipak potrebu za stručnom pomoći u slučaju posvojenog djeteta procijenile većom. Vlastitu informiranost buduće stručnjakinje procjenjuju slabijom – pri čemu kao glavne izvore informacija o posvojenju uglavnom navode televiziju/dnevne novine, internet te obitelj i prijatelje, dok istovremeno takve sadržaje smatraju dosta korisnima za buduću profesiju. Rezultati sugeriraju potrebu za dodatnom edukacijom na temu posvojenja u sklopu fakultetskog obrazovanja – u svrhu osiguravanja većeg znanja i osviještenosti budućih stručnjaka te prevencije stigmatizacije posvojene djece. Ključne riječi: implicitni stavovi, informiranost o posvojenju, posvojena djeca, posvojiteljske obitelji, studenti pomagačkih struka
Roditeljsko zadovoljstvo, generativnost i uspješno starenje
Authors:   Odjel za psihologiju, Sveučilište u Zadru, Zadar, Tucak Junaković Ivana , Nekić Marina ,   Odjel za psihologiju, Sveučilište u Zadru, Zadar, Ambrosi-Randić Neala ,   Odjel za interdisciplinarne, talijanske i kulturološke studije, Sveučilište Jurja Dobrile u Puli, Pula
Published: November 2020

Uspješno starenje je višedimenzionalan konstrukt, ali konsenzus u pogledu njegovih komponenti i operacionalne definicije još nije postignut. U ranijim su istraživanjima ispitane njegove brojne determinante i korelati, ali istraživanja roditeljstva i generativnosti ili brige za dobrobit mlađih generacija u kontekstu uspješnog starenja zasada su vrlo rijetka. Stoga je provedeno istraživanje s ciljem ispitivanja povezanosti i doprinosa roditeljskog zadovoljstva i generativnosti starijih osoba njihovu uspješnom starenju. U istraživanju su sudjelovala 444 starija roditelja u dobi od 60 do 95 godina iz različitih dijelova Hrvatske. Tri dimenzije roditeljskog zadovoljstva (zadovoljstvo sobom kao roditeljem, svojom djecom i odnosima s njima) ispitane su po jednim pitanjem za svaku. Generativnost je ispitana adaptiranom Loyola skalom generativnosti, a uspješno starenje Skalom samoprocjene uspješnog starenja. Rezultati su pokazali da sudionici daju visoke procjene na sve tri dimenzije roditeljskog zadovoljstva. Rezultati na skali uspješnog starenja bili su značajno povezani s ispitanim dimenzijama roditeljskog zadovoljstva i s generativnošću. Nadalje, pokazalo se da, nakon kontrole sociodemografskih varijabli, generativnost, zadovoljstvo sobom kao roditeljem i odnosima s vlastitom odraslom djecom značajno doprinose uspješnom starenju sudionika istraživanja. Rezultati ovoga istraživanja upućuju na važnost brige za mlađe generacije i vlastite doprinose društvu te roditeljskog zadovoljstva i u starijoj dobi za uspješno nošenje s promjenama povezanima sa starenjem. Ključne riječi: roditeljsko zadovoljstvo, generativnost, uspješno starenje
Kvaliteta bliskih odnosa kod vlasnika pasa i aspekti privrženosti kućnom ljubimcu
Authors:   Odjel za psihologiju, Sveučilište u Zadru, Zadar, Ombla Jelena , Vidaković Marina ,   Odjel za psihologiju, Sveučilište u Zadru, Zadar
Published: November 2020

Odnos između vlasnika i njihovih kućnih ljubimaca nema eksplicitno definiranu svrhu, ipak čini se da poprima obilježja obostranog afektivnog odnosa. Ovo je posebice istaknuto kada je riječ o psima kao kućnim ljubimcima, koji osim što su najpopularnija vrsta ljubimaca, ujedno su i vrsta za koju se čovjek snažno emocionalno veže. Istraživanja pokazuju kako u nekim slučajevima kućni ljubimci zamjenjuju manjak veza privrženosti s ljudima, dok u drugima proširuju raspon veza i socijalnih kontakata koji doprinose općem životnom zadovoljstvu te pružaju osjećaj ugode i potpore u težim trenucima. Cilj ovog istraživanja bio je pokušati utvrditi razlikuju li se dvije skupine vlasnika pasa u nekim odrednicama kvalitete bliskih interpersonalnih odnosa uzevši pritom u obzir aspekte privrženosti koje ostvaruju u odnosu sa svojim ljubimcem. Rezultati potvrđuju očekivanja; uzorak vlasnika pasa do kojeg se došlo tehnikom tzv. snježne grude realizira kvalitetnije bliske interpersonalne odnose i iskazuje veće životno zadovoljstvo, dok tzv. samoregrutirani uzorak vlasnika pasa slabije funkcionira u odnosima sa značajnim drugima, a uz to su i manje zadovoljni životom. Nadalje, skupina vlasnika pasa koja je lošija na interpersonalnom planu, privrženija je svom ljubimcu. Njihova motivacija za socijalnim kontaktom istaknuta je u potrebi za pažnjom i samouzdizanjem koje proizlazi iz te pažnje, što upućuje na moguće faktore unutar ličnosti koji bi mogli biti važni za interpersonalno funkcioniranje. Ključne riječi: privrženost, usamljenost, interpersonalni odnosi, kućni ljubimci
Stilovi vožnje i rizik od prometnih prekršaja i nezgoda
Authors:   Odjel za psihologiju, Sveučilište u Zadru, Zadar, Tokić Andrea , Dragaš Diana , Gregov Ljiljana ,   Odjel za psihologiju, Sveučilište u Zadru, Zadar
Published: November 2020

Stil vožnje je relativno stabilan način kako osoba uobičajeno vozi. On uključuje izbor brzine vožnje, opću razinu pozornosti i asertivnosti, a pod utjecajem je stavova i uvjerenja o vožnji, ali i općenitih stavova. Stilovi vožnje mogu biti ključni faktori u objašnjenju nastanka nezgoda ili mogu biti medijatorske varijable između nekih sociodemografske karakteristika i osobina ličnosti na nastanak nezgoda. Svrha rada bila je utvrditi, na uzorku od 302 vozača i vozačice, međusobne odnose stilova vožnje, demografskih karakteristika i sudjelovanja u prometnim nezgodama i prekršajima. Ispitivanje je provedeno on-line, a prikupljani su podaci o osnovnim sociodemografskim značajkama, broju prekršaja i nezgoda u posljednjih pet godina, duljini vozačkog staža i stilovima vožnje. Rezultati pokazuju da su muškarci češći počinitelji prometnih nezgoda i prekršaja nego žene. Žene više preferiraju siguran i strpljivi, anksiozan i disocijativan stil vožnje, a muškarci rizični i ljutiti stil vožnje. S duljinom vozačkog staža opada preferencija ljutitog i rizičnog stila vožnje. Osobe s više prometnih prekršaja više preferiraju rizičan stil vožnje nego vozači bez prekršaja ili samo s jednim prekršajem. Rezultati ovog istraživanje mogu imati svoje praktične implikacije kroz razvoj edukacijskih programa i treninga (sa svrhom općeg povećanja sigurnosti u prometu), koji bi mogli biti ponešto različite za različite spolove s obzirom na to da su utvrđene značajne razlike između muškaraca i žena u svim stilovima vožnje. Ključne riječi: prometni prekršaji i nezgode, spol, stil vožnje, vozački staž
Modeli logopedske terapije: komparativna analiza hrvatskog i europskog konteksta
Authors:   Poliklinika za rehabilitaciju slušanja i govora SUVAG, Zagreb, Hrvatska, Pavičić Dokoza Katarina , Matić Ana ,   Odsjek za logopediju Edukacijsko-rehabilitacijskog fakulteta Sveučilišta u Zagrebu, Zagreb, Hrvatska, Kuvač Kraljević Jelena ,   Odsjek za logopediju Edukacijsko-rehabilitacijskog fakulteta Sveučilišta u Zagrebu, Zagreb, Hrvatska
Published: November 2020

Logopedsku terapiju čini niz aktivnosti o kojima je potrebno unaprijed promišljati, a terapijski bi pristupi i modeli trebali počivati na teorijskim činjenicama i znanstveno utemeljenim dokazima. U Hrvatskoj još uvijek manjka istraživanja o načinima rada logopeda, metodama podrške koje primjenjuju i čimbenicima koji određuju strukturu terapije. U skladu s time, svrha je ovoga rada bila prikupiti spoznaje o terapijskim modelima koji se primjenjuju u radu s djecom s razvojnim jezičnim poremećajem (RJP), a cilj je ispitati zastupljenost izravne i neizravne terapije u logopedskom radu te provesti korelacijsko ispitivanje radi utvrđivanja čimbenika koji utječu na odluku o primjeni određenoga modela. Rezultati su pokazali da u Hrvatskoj i dalje prevladava izravan model rada te da manji dio logopeda u svoj rad uključuje treću stranu, najčešće roditelje. U tom se smislu logopedi u Hrvatskoj ne razlikuju od onih u Europi. Nije dobivena povezanost između sustava rada i modela pružanja usluga, ali je dobivena granično značajna negativna povezanost između većeg radnog iskustva i odabira kombiniranih modela. Nije utvrđena ni povezanost djetetove dobi, vrste i jakosti poremećaja s načinom rada. Podatci o niskoj zastupljenosti neizravne terapije upućuju na potrebu dodatne edukacije logopeda o njezinim prednostima i nedostatcima te načinima njezine implementacije. Nepotvrđivanje povezanosti između niza ispitanih varijabli upućuje na potrebu za dodatnim promišljanjem o čimbenicima koji usmjeravaju logopedski rad. Ključne riječi: logopedska terapija, izravni i neizravni modeli, Upitnik za logopede, komparativna analiza
Uloga prilagođene slikovnice u poticanju pripovijedanja
Authors:   Edukacijsko-rehabilitacijski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska, Rosandić Monika , Alviž Sara ,   Centar za rehabilitaciju Stančić, Dugo Selo, Hrvatska, Ivšac Pavliša Jasmina ,   Edukacijsko-rehabilitacijski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Published: November 2020

Zajedničko čitanje slikovnica prirodna je aktivnost kojom se potiču vještine rane pismenosti, a prediktivno je i za kasnije vještine čitanja i pisanja. Zbog širokog raspona mogućnosti u obliku tehničkih, sadržajnih i jezičnih prilagodbi prilagođene slikovnice pružaju mogućnost interaktivnog sudjelovanja djeci s različitim odstupanjima od urednog komunikacijsko-jezično-govornog razvoja, a pozitivni učinci pojavljuju se i kod populacije urednog razvoja. Cilj je ovog istraživanja bio ispitati uspješnost pripovijedanja nakon čitanja prilagođene slikovnice u odnosu na standardnu slikovnicu. Pripovjedne sposobnosti, promatrane na makrostrukturalnoj razini, ispitane su na uzorku od 30 djece kronološke dobi između 5;07 i 6;07 godina, urednog kognitivnog i jezičnog razvoja. Za potrebe istraživanja korištene su dvije priče, Mačka i Pas, koje su dio instrumenta MAIN - hrvatska inačica: Višejezični instrument za ispitivanje pripovijedanja. Rezultati su pokazali kako se statistički značajne razlike pojavljuju u području razumijevanja sadržaja te uporabi riječi kojima se izražavaju unutarnja stanja likova. Nisu pronađene značajne razlike u cjelokupnoj strukturi priče i na većini razina strukturalne složenosti. Dobiveni rezultati upućuju na potrebu za daljnjim istraživanjima u ovom području kako bi se stvorili temelji za logopedsku praksu utemeljenu na dokazima. Ključne riječi: prilagođena slikovnica, pripovjedne sposobnosti, složene komunikacijske potrebe, MAIN - hrvatska inačica: Višejezični instrument za ispitivanje pripovijedanja
Procjena problematičnog kockanja mladih – usporedba i podudarnost South Oaks skale kockanja za adolescente (SOGS-RA) i Kanadskog upitnika kockanja adolescenata (CAGI-GPSS subskala)
Authors:   Edukacijsko-rehabilitacijski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska, Dodig Hundrić Dora
Published: November 2020

Problemi povezani s kockanjem mladih predmet su interesa brojnih studija, no područje procjene problema još je nedovoljno istraženo. Stoga je cilj ovog rada usporediti i provjeriti podudarnost, u istraživanjima najčešće korištenog instrumenta, South Oaks skale kockanja mladih (SOGS-RA) s Kanadskim upitnikom kockanja adolescenata, tj. njegovom mjerom opće razine problema (CAGI-GPSS), prvim instrumentom ciljano konstruiranim za primjenu u populaciji adolescenata. U istraživanju je sudjelovao prigodni uzorak od N = 572 muških srednjoškolaca iz Zagreba i Splita (Mdob = 16,17 godina; SD = 1,22) svih triju vrsta obrazovnih programa, od prvog do završnog razreda srednje škole. Uz spomenute instrumente procjene, korišten je i Upitnik o osnovnim osobnim i sociodemografskim obilježjima. Dobiveni rezultati pokazuju da značajan udio mladića zadovoljava kriterije za skupinu onih s ozbiljnim problemima povezanim s kockanjem i na SOGS-RA instrumentu (13,8%) i na CAGI-GPSS subskali (16.4%). Klasifikacijska podudarnost instrumenata je umjerena (Kappa = ,574), tj. udio mladića koji su na oba instrumenta svrstani u istu skupinu problema iznosi oko 57%. Rezultati su analizirani u odnosu na relevantne empirijske pokazatelje, te su raspravljene njihove praktične implikacije i potencijalni doprinos razvoju pouzdanog instrumenta procjene ovog kompleksnog problema u ponašanju mladih. Ključne riječi: problematično kockanje mladih, procjena, SOGS-RA, CAGI-GPSS, klasifikacija, podudarnost
Djevojčice i žene s poremećajem iz spektra autizma
Authors:   Edukacijsko-rehabilitacijski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska, Stošić Jasmina , Begić Matea ,   Edukacijsko-rehabilitacijski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska, Soldan Marina ,   Agencija za zapošljavanje Smartflex, Zagreb, Hrvatska
Published: November 2020

Poremećaj iz spektra autizma uključuje različitosti i teškoće na području socijalne komunikacije te na području ponašanja, interesa i aktivnosti. Iako je smatran dominantno “muškim” poremećajem, novija istraživanja upućuju na to da je broj djevojčica i žena s PSA-om podcijenjen, da kasnije dobivaju dijagnozu i da je potrebno da izražavaju puno više težih simptoma da bi je dobile. U ovom će radu biti prikazana obilježja djevojčica i žena s poremećajem iz spektra autizma u kojima se one razlikuju od dječaka i muškaraca. Prema dosadašnjim istraživanjima, djevojčice i žene izražavaju manje teškoća u socijalnoj komunikaciji, u većoj mjeri upotrebljavaju socijalno maskiranje, češće imaju tipične interese te su kod njih manje prisutna ograničena i repetitivna ponašanja nego u dječaka i muškaraca s poremećajem iz spektra autizma. Potrebno je provesti daljnja istraživanja prevalencije, iskustava žena i djevojčica te njihova različitog izražavanja PSA-a. To će omogućiti bolje prepoznavanje i dijagnostiku, a samim time omogućiti i pravovremeno dobivanje podrške te kreiranje usluga koje su iskrojene prema njihovim specifičnostima. Ključne riječi: autizam, žene s poremećajem iz spektra autizma, socijalno maskiranje
Spontano generirani pokreti kao prediktori neurorazvojnih poremećaja
Authors:   Edukacijsko-rehabilitacijski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska, Jandroković Ivana , Stošić Jasmina ,   Edukacijsko-rehabilitacijski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Published: November 2020

U ovom radu prikazane su dosadašnje spoznaje o spontano generiranim pokretima (SGP) te njihova moguća ulogu prediktora neurorazvojnih poremećaja. Prema najnovijim podacima, jedno od šestero djece tijekom rane dobi razvije neki od neurorazvojih poremećaja. Metode i tehnike predviđanja i probira rizične djece za mogućnost razvoja nekog od neurorazvojnih poremećaja dosta su ograničene. Spontano generirani pokreti (SGP) u neonatalnom periodu indikator su spontane neuralne aktivnosti, te time i dobar pokazatelj oštećenja mozga. Danas je dobro poznato kako je procjena SGP-a visoko prediktivna za razvoj cerebralne paralize, no manje je poznata njena vrijednost kao prediktora za druge poremećaje koji nisu motorički. Mnoga istraživanja pokazala su da su atipični SGP indikator oštećenja mozga ili disfunkcije subplate zone, što posljedično može voditi disfunkciji u mnogim vještinama koje su posljedica optimalnog funkcioniranja kompleksnih kortiko-subkortikalnih neuralnih krugova. Na taj način procjena spontano generiranih pokreta može biti prediktivna za neurorazvojne poremećaje te omogućiti pravovremeno uključivanje u programe rane stimulacije i rane intervencije. Ključne riječi: spontano generirani pokreti, procjena spontano generiranih pokreta, neurorazvojni poremećaj, poremećaj iz spektra autizma
Free vibration analysis of structural-acoustic coupled system using hybrid impedance and mobility approach
Authors: Nalawade Amogh , S Y Veerabhadra Reddy , B Venkatesham
Published: November 2020

The present paper discusses impedance and mobility approach integrated with finite element method (FEM) for free vibration analysis of structural-acoustic coupled systems for irregular geometry. In this method, coupled natural frequencies of any irregular geometry with flexible surfaces with different boundary conditions can be estimated. The proposed hybrid method helps to understand the underlying physics of structural-acoustic coupling in complex geometries. The formulation being in impedance and mobility form, gives more insight in understanding coupled modes of the complex geometries. It is for three dimensional irregular geometries, so it can be used in most of the practical applications where coupled natural frequencies play a vital role. The proposed method is demonstrated for regular and irregular geometry with one wall flexible configuration. The results are corroborated with existing literature data for regular geometry and numerical models for irregular geometry.