bluuebunny/crossref_metadata_2025_split huggingface dataset:
Digitalization of Small and Medium-Sized Hotels in Vietnam: Interdependent Critical Factors
Authors: Tung Pham Thanh , Lin Chien-Pang 
Published: May 2024

People responsible for managing digitalization must clarify the role of its critical factors. Many studies have already identified these factors, assuming that they are independent. These factors, however, are likely to interact since digitalization is a multi-stakeholder and multi-dimensional transformation. Ignoring their interactions is likely to cause biases in measurement and analysis. Therefore, this study explores the influential weight and interactions of the critical factors behind the digitalization of Vietnam’s small and medium-sized hotels. According to the technology-organization-environment (TOE) framework, the results of a combined analytical hierarchy process (AHP) and the decision-making trial and evaluation laboratory (DEMATEL) analysis present four key findings: 1) technological context is a cause, but organizational context is an effect, while environmental context is neutral; 2) technological context has influence than others; 3) among the 12 critical factors identified, marketing benefits, financial resources, usage barriers, and cross-technology compatibility are the most important; and 4) marketing benefits, cross-technology compatibility, financial resources, organizational characteristics, and competitor pressure are causes. The findings show that contexts (factors) interact. Cause context (factor) directly and indirectly influences digitalization through other contexts (factors). In addition, there are no dominant contexts and factors. Accordingly, to be effective, digitalization needs to take all critical factors into account. Prioritizing the primary context (factors) and improving the core cause context (factors) are therefore appropriate.
FAKTOR PELINDUNG RESILIENSI AKADEMIK SISWA SEKOLAH MENENGAH ATAS SEMINARI MENENGAH DI INDONESIA
Authors: Sembiring Mimpin , Tarigan Thomas 
Published: May 2024

Abstrak
Penelitian tentang resiliensi akademik telah banyak dilakukan di seluruh dunia. Banyak faktor pelindung dan faktor risiko resiliensi akademik yang telah diteliti. Namun, penelitian resiliensi akademik terhadap siswa Sekolah Menengah Atas (SMA) seminari menengah masih merupakan hal yang baru. Penelitian ini bertujuan untuk menggali sejumlah faktor pelindung resiliensi akademik siswa SMA seminari menengah, yaitu: iklim sekolah dan kesejahteraan rohani. Ini penting, mengingat bahwa SMA seminari menengah merupakan institusi pendidikan yang spesifik, dan sangat penting bagi Gereja Katolik. Penelitian ini dirancang dengan pendekatan kuantitatif. Subjek penelitian ini berjumlah 664 siswa yang berasal dari 3 SMA seminari menengah di Indonesia. Angket penelitian disebar dengan dua cara, online dan ofline. Pengumpulan data terhadap dua SMA seminari dilakukan secara ofline, sedangkan terhadap satu SMA seminari lainnya secara online melalui google form. Data dianalisis dengan menggunakan aplikasi AMOS. Hasil uji model teoretis menunjukkan bahwa model resiliensi akademik siswa SMA Seminari Menengah ditinjau dari iklim sekolah dan Kkesejahteraan rohani sesuai dengan model empiris. Selain itu dari iklim sekolah dan kesejahteraan rohani berkorelasi signifikan dan positif terhadap resiliensi akademik, Dengan demikian temuan penelitian ini ialah bahwa iklim sekolah dan kesejahteraan rohani adalah faktor pelindung resiliensi akademik bagi siswa SMA seminari menengah,
Kata kunci: resiliensi akademik, SMA Seminari Menengah, iklim sekolah, kesejahteraan rohani, faktor pelindung.
Nanoindentation of a Pseudoelastic NiTiFe Shape Memory Alloy
Authors: Pfetzing‐Micklich Janine , Wagner Martin Franz‐Xaver , Zarnetta Robert , Frenzel Jan , Eggeler Gunther , Markaki Athina Emmanuel , Wheeler Jeff , Clyne Trevor William 
Published: February 2010

AbstractNanoindentation is a suitable tool for characterizing the local mechanical properties of shape memory alloys (SMA) and to study their pseudoelastic behavior. There is a special interest in indenting with different indenter tips (as not all tips are associated with strain states that predominantly induce the martensitic transformation) and in indenting at different temperatures, where different phases are present. In this study, we perform nanoindentation on a ternary NiTiFe SMA with different indenter tips and at various testing temperatures. For nanoindentation with spherical tips, load–displacement hystereses clearly indicate pseudoelastic behavior, whereas indentation with Berkovich tips results in more pronounced plastic deformation. Testing at different temperatures is associated with different volume fractions of austenite, martensite, and R‐phase. The corresponding nanoindentation responses differ considerably in terms of pseudoelastic behavior. Best pseudoelastic recovery is found at testing temperatures close to the R‐phase start temperature, even though this temperature is below the austenite finish temperature, which is a well‐known lower temperature bound for full recovery in macroscopic tests. Our results are discussed considering micromechanical aspects and the interaction between stress‐induced phase transformation and dislocation plasticity.
Lightweight Porcelain Stoneware by Engineered CeO2 Addition
Authors: Bernardo Enrico , De Lazzari Marco , Colombo Paolo , Llaudis Alejandro Saburit , Garcìa‐Ten Francisco Javier 
Published: February 2010

AbstractThe use of porcelain stoneware in innovative applications such as the covering of internal walls or the manufacturing of ventilated facades may be limited by its relatively high density. In this paper, we discuss the achievement of a reduction in density of about 30%, coupled to a limited water absorption (about 2%), by the addition of CeO2 to the raw materials. This additive provides some porosity due to the evolution of oxygen, in turn caused by the high temperature reduction to Ce2O3. This gas formation depends both on sintering temperature, holding time, and is obviously affected by the concentration of additive. Two different processing strategies were found to match the density and water absorption requirements for the application of stoneware tiles. One involved the the control of the CeO2 content together with processing at high temperature for a limited holding time; the other one corresponded to the fabrication of a graded material, comprising a highly porous core (produced using a high content of CeO2) sandwiched between two external compact surface layers.
Photopolymerizable Hydrogels Made from Polymer‐Conjugated Albumin for Affinity‐Based Drug Delivery
Authors: Oss‐Ronen Liat , Seliktar Dror 
Published: February 2010

AbstractAs a drug delivery vehicle, biodegradable albumin hydrogels can combine the high binding capacity of albumin with the structural stability of a polymeric hydrogel network to enable controlled release of small molecules based on both binding affinity and physical interactions. In the present study, we report on the development of a hybrid hydrogel composed of albumin conjugated to poly(ethylene glycol) (PEG) for drug delivery applications where controlled release is accomplished using the natural affinity of the drugs to the serum albumin. Bovine serum albumin was conjugated to PEG‐diacrylate having a molecular weight of 1.5, 4, or 10 kDa to form a PEGylated albumin macromolecule (mono‐PEGylated or multi‐PEGylated). Biodegradable hydrogels were formed from the PEGylated albumin using photopolymerization. Two model drugs, Warfarin and Naproxen, were used for equilibrium dialysis and release experiments from the hydrogels, both having relatively low molecular weights and a known high affinity for albumin. Equilibrium dialysis experiments showed that multi‐PEGylation of albumin significantly decreased the drug affinity to the protein compared to non‐PEGylated controls, irrespective of the PEG molecular weight. However, the results from drug release experiments showed that mono‐PEGylation of albumin did not change its natural affinity to the drug. Comparing the release profiles with a Fickian diffusion model provided strong evidence that hydrogels containing mono‐PEGylated albumin exhibited sub‐diffusive drug release properties based on the affinity of the drug to the tethered protein.
Electrolytic Deposition of Hydroxyapatite Coating on CoNiCrMo Substrates
Authors: Lin Dong‐Yang , Jiang Yong , Wang Xiao‐Xiang 
Published: February 2010

AbstractHydroxyapatite (HA) coating was fabricated on CoNiCrMo alloy by electrolytic deposition (ELD). Different kinds of uncharged substrates were placed close to the cathode separately during the ELD process. Both CoNiCrMo and uncharged substrates were covered with uniform HA coatings composed of hexagonal prism crystals after 60 min deposition. The pH value of the bulk solution changed hardly while the local pH had a sharp increase after ELD. The results demonstrate the local pH plays a crucial role in the ELD process.
Computational Methods for the Development of Polymeric Biomaterials
Authors: Costache Aurora D. , Ghosh Jayeeta , Knight Doyle D. , Kohn Joachim 
Published: February 2010

AbstractThis review focuses on polymeric biomaterials and provides a selective overview of the computational modeling approaches used to predict their properties and biological responses. Also, a short overview of existing databases and software packages for the biomaterials field is presented. The review summarizes the research in this area since the year 2000.
Bovine Serum Albumin and Lysozyme Adsorption on Calcium Phosphate Particles
Authors: Mueller Berit , Zacharias Martin , Rezwan Kurosch 
Published: February 2010

AbstractTwo model proteins that are oppositely charged at neutral pH – bovine serum albumin (BSA) and lysozyme, with acidic and alkaline isoelectric points, respectively – are used to investigate the protein adsorption behaviour of hydroxyapatite and beta‐tricalcium phosphate (β‐TCP) particles. Both calcium phosphate based particles are highly relevant for the fabrication of bioactive and resorbable bone implants. The investigations are carried out by combining zeta potential and Vis spectroscopy measurements. The changes of zeta potential and isoelectric point are determined as a function of added protein. Both proteins form a monolayer on β‐TCP, while on hydroxyapatite only semi‐monolayers were measured. For BSA, a side‐on adsorption mode is suggested, whereas end‐on adsorption appears to be most likely for lysozyme. The zeta potential curves as a function of adsorbed protein show that plateaus of the protein amounts adsorbed increase with charge saturation. In addition, the spatial charge distribution of both proteins is modelled to get a further understanding of the initial adsorption orientation of the biomolecules, supporting the findings from the experimental data. The reported findings can be transferred to the adsorption behaviour of a variety of proteins on calcium phosphate surfaces and are helpful for the fabrication of bone‐analogous calcium phosphate/protein nanocomposites.
Preparation of Uniform, Water‐Soluble, and Multifunctional Nanocomposites with Tunable Sizes
Authors: Niu Dechao , Li Yongsheng , Ma Zhi , Diao Hua , Gu Jinlou , Chen Hangrong , Zhao Wenru , Ruan Meiling , Zhang Yonglian , Shi Jianlin 
Published: February 2010

AbstractNovel, thiol‐functionalized, and superparamagnetic, silica composite nanospheres (SH‐SSCNs) with diameters smaller than 100 nm are successfully fabricated through the self‐assembly of Fe3O4 nanoparticles and polystyrene100‐block‐poly(acrylic acid)16 and a subsequent sol‐gel process. The size and magnetic properties of the SH‐SSCNs can be easily tuned by simply varying the initial concentrations of the magnetite nanoparticles in the oil phase. By incorporating fluorescent dye molecules into the silica network, the composite nanospheres can be further fluorescent‐functionalized. The toxicity of the SH‐SSCNs is evaluated by choosing three typical cell lines (HUVEC, RAW264.7, and A549) as model cells, and no toxic effects are observed. It is also demonstrated that SH‐SSCNs can be used as a new class of magnetic resonance imaging (MRI) probes, having a remarkably high spin–spin (T2) relaxivity (r2* = 176.1 mM−1 S−1). The combination of the sub‐100‐nm particle size, monodispersity in aqueous solution, superparamagnetism, and fluorescent properties of the SH‐SSCNs, as well as the non‐cytotoxicity in vitro, provides a novel and potential candidate for an earlier MRI diagnostic method of cancer.
Immunohistochemical Localization of Substance P And Cholecystokinin in the Dorsal Root Ganglia and Spinal Cord of the Bottlenose Dolphin (Tursiops truncatus)
Authors: Bombardi Cristiano , Grandis Annamaria , Nenzi Alice , Giurisato Maristella , Cozzi Bruno 
Published: February 2010

AbstractThe presence of substance P (SP) and cholecystokinin (CCK) immunoreactive neurons was examined in the bottlenose dolphin dorsal root ganglia (DRGs) and spinal cord by immunohistochemical techniques. SP‐positive and CCK‐immunoreactive neurons were respectively ∼50% and 1% of the total number of ganglion cells examined and especially belonged to small and medium‐sized cell populations. Using double labeling techniques we observed that SP‐ and CCK‐immunoreactivity coexisted in a very low number of primary afferent neurons (2.7%). Few SP‐immunoreactive (IR) neurons (2.7%) were also CCK‐positive. On the contrary, 65% of CCK‐immunoreactive neurons contained SP. Interestingly, we observed CCK‐immunoreactive satellite glial cells located around large cell class somata. Virtually no SP‐IR and CCK‐positive neurons were surrounded by peripheral CCK‐immunoreactive satellite glial cells. The SP‐IR and CCK‐positive nerve fibers were particularly conspicuous in the superficial layers of the spinal cord. The present study indicates that SP and CCK only partially overlap in the thoracic, lumbar, and caudal DRGs of the bottlenose dolphin, suggesting that the majority of SP‐IR ganglion neurons are lacking in CCK‐immunoreactivity. The role of SP‐containing DRG neurons is discussed also in relation to the huge vascular spinalretia mirabiliatypical of cetaceans. Anat Rec, 293:477–484, 2010. © 2010 Wiley‐Liss, Inc.
Desmosomes in the Uterine Epithelium of Noninvasive Skink Placentae
Authors: Biazik Joanna M. , Thompson Michael B. , Murphy Christopher R. 
Published: February 2010

AbstractAustralian species of viviparous skinks have noninvasive epitheliochorial placentation where there is no breeching or interruption of the uterine epithelial cell barrier. This is contrary to some African and South American species of skinks which exhibit invading chorionic cells and a localized endotheliochorial placenta. The desmosomes, which maintain the adhesive properties of the junctional complex between uterine epithelial cells, were found to decrease as gestation progressed in the uterus of two highly placentotrophic Australian skinks, but no changes in desmosomal numbers were present in the uterus of two Australian oviparous skinks or viviparous skinks with a simple placenta. In mammals, desmosomes decrease in the uterine epithelium of species with invasive hemochorial placentation, where less chemical and mechanical adhesion between cells assists the invading trophoblast at the time of implantation. However, Australian viviparous skinks do not have an invasive trophoblast; yet, similarities in decreasing lateral cellular adhesion exist in the uterus of both invasive and noninvasive placental types. This similarity in cellular mechanisms suggests a conservation of plasma membrane changes across placentation irrespective of reptilian or mammalian origin. Anat Rec, 293:502–512, 2010. © 2010 Wiley‐Liss, Inc.
Emotion and reason in everyday risk perception
Authors: Hogarth Robin M. , Portell Mariona , Cuxart Anna , Kolev Gueorgui I. 
Published: February 2010

AbstractAlthough research has documented the importance of emotion in risk perception, little is known about it in the context of everyday life. Using the Experience Sampling Method (ESM), 94 part‐time students were prompted at random—via cellular telephones—to report on mood state and three emotions and to assess risk on thirty occasions during their working hours. The emotions—valence, arousal, and dominance—were measured using self‐assessment manikins (SAMs) (Bradley & Lang, 1994). Hierarchical linear models (HLM) revealed that mood state and emotions explained significant variance in risk perception. In addition, valence and arousal accounted for variance over and above “reason” (measured by severity and possibility of risks). Six risks were re‐assessed in a post‐experimental session and found to be lower than their real‐time counterparts. The study demonstrates the feasibility and value of collecting representative samples of data with simple technology. Evidence is also provided to demonstrate the statistical consistency of the HLM estimates. Copyright © 2010 John Wiley & Sons, Ltd.
Pre‐outcome regret: Widespread and overlooked
Authors: Kirkebøen Geir , Teigen Karl Halvor 
Published: February 2010

AbstractMany real‐life decisions (e.g. promises, plans and agreements) involve a time interval between when the decision is made and the main outcome is revealed. Nearly all regret studies focus on anticipated or experienced post‐outcome regret. We argue that regret is also frequently experienced in the pre‐outcome period, and that this ‘pre‐outcome regret’ has other sources than regret experienced after the outcome is known. Regret experienced in the pre‐outcome period has an important function post‐outcome regret (usually) cannot have, namely to motivate the decision maker to reconsider the ongoing decision process and reverse the initial decision. Pre‐outcome regret should for these reasons be distinguished from post‐outcome regret, and studied separately. In two scenario studies, participants were asked to imagine their regret after agreeing to perform an inconvenient task. In both, more regret was reported before than after the event, even when they had imagined a ‘worst case’ outcome. In the third study, participants described a difficult choice from their own life. Again, regret was perceived as higher in the pre‐outcome period than afterwards. In a fourth study, participants reported regret ‘online’ during an economic game (a version of the ultimatum game). They regretted their decisions more before than after they knew the outcome. We conclude that experienced pre‐outcome regret is often stronger than post‐outcome regret, and typically increases during the pre‐outcome period. We suspect that the absence of JDM studies of pre‐outcome regret is a legacy of the dominant gambling metaphor within decision research. Copyright © 2010 John Wiley & Sons, Ltd.
Optimal treatment of cervical necrotizing fasciitis associated with descending necrotizing mediastinitis
Authors: Karkas A , Chahine K , Schmerber S , Brichon P-Y , Righini C A 
Published: February 2010

Abstract

Background
Cervical necrotizing fasciitis (CNF) associated with descending necrotizing mediastinitis (DNM) is a rapidly evolving and life-threatening condition. The aim of this retrospective study was to describe a treatment strategy for CNF with DNM and present a management algorithm for mediastinal extensions of CNF.

Methods
Patients diagnosed and treated for CNF with DNM over 14 years in a tertiary referral centre were included.

Results
Seventeen adult patients were included. The origin of infection was mainly oropharyngeal. The diagnosis of CNF/DNM was based on clinical and computed tomography findings. All patients underwent cervicotomy for CNF. In ten patients, DNM was located above the carina and could be accessed by a cervical approach. In seven patients, DNM was below the carina, and necessitated sternotomy for anteroinferior mediastinal involvement and posterolateral thoracotomy for posteroinferior mediastinal involvement. All patients received broad-spectrum antibiotics. One patient died 3 days after surgery. The median hospital stay was 30 days. There was no recurrence during long-term follow-up.

Conclusion
Prompt diagnosis and early surgical treatment are essential for reducing mortality in CNF/DNM. All patients should undergo extensive cervicotomy. The surgical approach to the mediastinum depends on the supracarinal or infracarinal location of the disease.
Screened individuals' preferences in the delivery of abdominal aortic aneurysm repair
Authors: Holt P J E , Gogalniceanu P , Murray S , Poloniecki J D , Loftus I M , Thompson M M 
Published: February 2010

Abstract

Background
This study aimed to determine preferences for service attributes in a population screened for abdominal aortic aneurysm.

Methods
A questionnaire was designed to encompass various aspects of service provision. Questions were calibrated against the time an individual was willing to travel to access specific attributes. Subjects attending an aneurysm screening programme were asked to complete a questionnaire before their screening ultrasound scan. Statistical analysis was through pairwise analysis of the median travel times with the signed rank test. The Wilcoxon rank sum, analysed by the Kruskal–Wallis test, was used to compare preference ratings.

Results
A total of 262 individuals were asked to complete the questionnaire; the response rate was 98·5 per cent. Approximately 92 per cent of individuals stated a willingness to travel for at least 1 h beyond their nearest hospital in order to access services with a 5 per cent lower perioperative mortality rate, a 2 per cent lower amputation or stroke rate, a high annual caseload of aneurysm repairs, and routine availability of endovascular repair.

Conclusion
Patients attending aneurysm screening were willing to travel beyond their nearest hospital to access a service with better outcomes, higher surgical volumes and endovascular surgery.
Value of specimen radiographs in diagnosing multifocality of thyroid cancer
Authors: Kwak J Y , Kim E-K , Hong S W , Kim M J , Moon H J , Park C S 
Published: February 2010

Abstract

Background
Specimen radiography has been used widely to evaluate the complete excision of calcified breast lesions but has not been evaluated for thyroid cancer.

Methods
Specimen radiographs were evaluated retrospectively to identify additional cancers that were demonstrated only as calcifications. Receiver operating characteristic curve analysis was performed to compare the combination of specimen radiography and ultrasonography versus ultrasonography alone for detecting multifocality.

Results
Some 122 thyroid cancer specimens were obtained from 122 patients between January and April 2008. Specimen radiography detected 27 cancers (18·5 per cent) not detected by ultrasonography. Diagnoses were changed after evaluation of specimen radiographs in three of these patients. The area under the curve of the combination of specimen radiography and ultrasonography was significantly higher than that of ultrasonography alone (P = 0·005).

Conclusion
Specimen radiography is a potentially useful tool for diagnosing cancer type and predicting the extent of thyroid cancer.