bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dielectric relaxation in vinylidene fluoride–hexafluoropropylene copolymers
Authors: Kochervinskii Valentin V. , Malyshkina Inna A. , Markin Grigory V. , Gavrilova Nadezhda D. , Bessonova Natalia P. 
Published: April 2007

AbstractThe molecular mobility in copolymers of vinylidene fluoride–hexafluoropropylene VDF/HFP of 93/7 and 86/14 ratios has been investigated by means of broadband dielectric relaxation spectroscopy (10−1–107Hz), differential scanning calorimetry DSC (−100 to 150°C), and of wide angle X‐ray diffraction WAXS. Four relaxation processes and one ferroelectric‐paraelectric phase transition have been detected. The process of the local mobility β‐ (at temperatures below glass transition point) is not affected by chemical composition of the copolymer and the formed structure. Parameters of segmental mobility in the region of glass transition (αa‐relaxation) depend on the ratio of comonomer with lower kinetic flexibility. αc‐relaxation is clearly observed only in VDF/HFP 93/7 copolymer, which is characterized by a higher crystallinity and a higher perfection of crystals of α‐ (αp‐) phase. Diffuse order–disorder relaxor type ferroelectric transition connected with the destruction of the domains in low‐perfect ferroelectric phase in the amorphous regions has been detected for both copolymers. An intensive relaxation process (α‐process) was observed for both copolymers in high‐temperature region. DSC data shows that it falls on the broad temperature region of α‐phase crystals melting. It is considered to be connected with the space charge relaxation. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
Studies of chitosan. I. Preparation and characterization of chitosan/poly(vinyl alcohol) blend films
Authors: Chen Cheng‐Ho , Wang Fang‐Yu , Mao Ching‐Feng , Yang Chien‐Hsin 
Published: April 2007

AbstractVarious blending ratios of chitosan/poly (vinyl alcohol) (CS/PVA) blend films were prepared by solution blend method in this study. The thermal properties and chemical structure characterization of the CS/PVA blend films were examined by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), dynamic mechanical analysis (DMA), and Fourier transform infrared (FTIR). Based upon the observation on the DSC thermal analysis, the melting point of PVA is decreased when the amount of CS in the blend film is increased. The FTIR absorption characteristic is changed when the amount of CS in the blend film is varied. Results of X‐ray diffraction (XRD) analysis indicate that the intensity of diffraction peak at 19° of PVA becomes lower and broader with increasing the amount of CS in the CS/PVA blend film. This trend illustrates that the existence of CS decreases the crystallinity of PVA. Although both PVA and CS are hydrophilic biodegradable polymers, the results of water contact angle measurement are still shown as high as 68° and 83° for PVA and for CS films, respectively. A minimum water contact angle (56°) was observed when the blend film contains 50 wt % CS. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007
Optimal thermotolerance of Bifidobacterium bifidum in gellan–alginate microparticles
Authors: Chen Ming‐Ju , Chen Kun‐Nan , Kuo Yi‐Tzu 
Published: April 2007

AbstractThe purpose of this research was to encapsulate Bifidobacterium bifidum using gellan, sodium alginate and prebiotics as coating materials, and to maximize the thermotolerance of the probiotics with an optimal combination of the coating materials. The optimal ratio of the coating materials for the microparticles under heat treatments (75°C, 1 min) was obtained by using the response surface method and the sequential quadratic programming technique. Optimization results indicated that 2% sodium alginate mixed with 1% gellan gum as coating materials would produce the highest thermotolerance in terms of B. bifidum count. The verification experiment yielded a result close to the predicted values, with no significant difference (P > 0.05). The results of heat treatments also demonstrated that the addition of gellan gum in the walls of probiotic microcapsules provided improved protection for B. bifidum. These probiotic counts remained at 105–106 CFU/g for the microcapsules stored for 2 months, then treated in heat and in simulated gastric fluid. Biotechnol. Bioeng. 2007;98: 411–419. © 2007 Wiley Periodicals, Inc.
Effect of doxycycline‐regulated protein disulfide isomerase expression on the specific productivity of recombinant CHO cells: Thrombopoietin and antibody
Authors: Mohan Chaya , Park Soon Hye , Chung Joo Young , Lee Gyun Min 
Published: April 2007

AbstractProtein disulfide isomerase (PDI), one of the ER‐resident molecular chaperones, forms and isomerizes disulfide bonds. This study attempts to investigate the effect of PDI expression level on specific productivity (q) of recombinant Chinese hamster ovary (rCHO) cells producing thrombopoietin (TPO) and antibody (Ab). To regulate the PDI expression level, the Tet‐Off system was introduced in TPO and Ab producing CHO cells, and stable Tet‐Off cells (TPO‐Tet‐Off and Ab‐Tet‐Off) were screened using the luciferase assay. The doxycycline‐regulated PDI expression system in Tet‐Off rCHO cells (Tet‐TPO‐PDI and Tet‐Ab‐PDI) was established by the cotransfection of pTRE‐PDI and pTK‐Hyg expression vector into TPO‐Tet‐Off and Ab‐Tet‐Off cells, respectively. Subsequent screening was done by Western blot analysis of PDI and an enzyme‐linked immunosorbent assay of the secreted TPO and antibody. We cultured two Tet‐TPO‐PDI and two Tet‐Ab‐PDI clones, and all these clones showed an average of 2.5‐fold increase in PDI expression when compared to the basal level. In both these cell lines the PDI expression was tightly controlled by various concentrations of doxycycline. The q of TPO (qTPO) was unaffected but that of antibody producing cells was increased by 15–27% due to the PDI expression level. Biotechnol. Bioeng. 2007;98:611–615. © 2007 Wiley Periodicals, Inc.
Tracer measurements reveal experimental evidence of biofilm consolidation
Authors: Casey Eoin 
Published: April 2007

AbstractThe ability to simultaneously measure both biofilm thickness and the mass transfer coefficient of an inert tracer through it provides a powerful method to study biofilm development. In this communication previously published data has been collated to interpret global trends in biofilm structure during the transition towards steady‐state. It appears that sudden changes in biofilm structure (directly related to the rate of change of biofilm mass transfer resistance) may occur following transitions in rate of biomass production. These observations are consistent with the concept of consolidation, recently introduced into spatially structured biofilm mathematical models to account for structural realignment of the biofilm under dynamic conditions. Biotechnol. Bioeng. 2007;98: 920–925. © 2007 Wiley Periodicals, Inc.
Organizational learning to manage sustainable development
Authors: Siebenhüner Bernd , Arnold Marlen 
Published: April 2007

AbstractCombating global warming, safeguarding ecological support systems and reducing energy and resource use as well as maintaining functioning societies are key challenges for many businesses today and in the near future. These problems have been addressed under the integrating concept of sustainable development. Implementing sustainable development in corporations, however, necessitates organizational learning. In light of a wide variation in corporate behaviour in accepting these challenges or not, the question arises of when and why companies pursue processes of learning and change to integrate sustainability, what effects these innovations have, and to what extent, and what factors promote or inhibit learning. This article addresses these questions on the basis of an empirical analysis of six companies. The study analyses internal and external explanatory factors for the occurrence of sustainability‐oriented learning and change processes in medium‐sized and large companies. Our findings highlight the role of learning mechanisms, leadership styles, internal networks and change agents. In terms of company‐external factors, the study focused on the pressure applied by stakeholders and governmental regulation. Copyright © 2007 John Wiley & Sons, Ltd and ERP Environment.
A step‐wise incremented Fourier series model for chemical reactivity prediction
Authors: Saidane Saloua , Al‐fozan Eman A. 
Published: April 2007

AbstractIn this paper, chemical reactivity is modeled as a time series of events defined by a reactant's concentration decay measured at consecutive discrete time periods. Since traditional time series techniques such as ARIMA and current Artificial Neural Networks require large data sets that are typically not available for chemical reactions, we developed a Step Wise Incremented Fourier Series (SWIFS) algorithm to model and predict nonlinear short time series. The application of SWIFS to experimental data from first‐ and second‐order reactions produced a significant improvement in prediction accuracy over traditional integrated rate laws. In forward‐time prediction, SWIFS has achieved significantly higher prediction accuracy with first‐ and second‐order chemical reactions data. SWIFS also proved more robust in terms of error propagation caused by the effect of the size of the estimation set. The proposed SWIFS model also outperformed rate law models in backwards‐time prediction. The ability of SWIFS to provide high accuracy in predicting chemical reactions may have beneficial implications on the efficiency of industrial production of chemicals as well as on the effective control of hazardous materials degradation. Copyright © 2007 John Wiley & Sons, Ltd.
Ultrasound‐guided transcutaneous Tru‐Cut biopsy to diagnose laryngopharyngeal masses
Authors: Ansarin Mohssen , De Fiori Elvio , Preda Lorenzo , Maffini Fausto , Bruschini Roberto , Calabrese Luca , Jereczek‐Fossa Barbara A. , Chiesa Fausto , Bellomi Massimo 
Published: April 2007

AbstractBACKGROUND.Patients with bulky laryngopharyngeal masses and a relative or absolute contraindication to general anesthesia present diagnostic difficulties. In the current study, the authors assessed the utility of transcutaneous ultrasound‐guided Tru‐Cut biopsy (USGTCB) under local anesthesia in such individuals.METHODS.The current report was a prospective, nonrandomized study. Patients meeting the inclusion criteria underwent USGTCB as outpatients.RESULTS.Ten patients were recruited, 4 of whom had an untreated mass obstructing the laryngeal lumen and 6 of whom were previously treated for laryngeal cancer. All tolerated the procedure well. The only adverse event noted was spontaneously resolving near‒syncope in 1 patient. In 9 patients the biopsy was diagnostic: invasive squamous cell carcinoma in 7 patients and chondronecrosis in 2 patients. In the remaining patient, radiologically suspected cricoid chondrosarcoma was confirmed based on the surgical specimen.CONCLUSIONS.The results of this pilot study are encouraging. USGTCB of laryngopharyngeal masses was found to produce no local morbidity, was diagnostic in each of the 5 patients with suspected disease recurrence after radiotherapy, was feasible in the outpatient setting, and had high sensitivity and specificity. The procedure is particularly useful for patients contraindicated for general anesthesia or those with a risk of tracheotomy due to intubation difficulties. Cancer 2007. © 2007 American Cancer Society.
Designing a CBT service for an acute inpatient setting: A pilot evaluation study
Authors: Durrant Caroline , Clarke Isabel , Tolland Abigail , Wilson Hannah 
Published: April 2007

AbstractA frequent complaint by service‐users of psychiatric inpatient units is the unavailability of talking therapy at precisely the time when they need to make sense of their situation. However, conventional models of cognitive–behavioural therapy (CBT) delivery, with set numbers of sessions and diagnostic specificity, are not well suited to the conditions of the acute ward, with variable and unpredictable lengths of stay and multiple and indistinct presentations. This pilot study describes a modification of CBT designed to deliver an effective, brief therapy in these conditions. The approach is grounded on the cognitive science‐based model, interacting cognitive subsystems, and draws on dialectical behaviour therapy and other recent, mindfulness‐based CBT approaches to provide a combination of simple formulation and skills‐based treatment. Evaluation in the inpatient setting also presents challenges, and these have been met by choosing measures that tap into self‐efficacy and confidence in the management of emotions rather than symptomatic change. The evaluation data on a small number of cases suggest the effectiveness of the approach and the need for wider testing of the model. Copyright © 2007 John Wiley & Sons, Ltd.
Specific relationships between core beliefs and personality disorder symptoms in a non‐clinical sample
Authors: Reeves Mark , Taylor Jeanette 
Published: April 2007

AbstractThe current study examined the relationship of clinically relevant core beliefs measured by the Young Schema Questionnaire‐Short Form (YSQ‐SF) to personality disorder (PD) symptoms in a large non‐clinical sample (N = 804). Results indicated that the 15 YSQ‐SF scales added sizeable explained variance (4% to 13%) to self‐reported symptoms of 12 PDs, above variance explained by gender and symptoms of other PDs. In addition, several specific core beliefs related uniquely to individual PDs after controlling for the other core beliefs. Given that core beliefs related to personality disorder symptoms in a non‐clinical sample of people at the typical onset age of PDs, it is possible that such beliefs might be important to understanding the development of PDs. Copyright © 2007 John Wiley & Sons, Ltd.
Can prevention of marital distress improve well‐being? A 1 year longitudinal study
Authors: Pihet Sandrine , Bodenmann Guy , Cina Annette , Widmer Kathrin , Shantinath Shachi 
Published: April 2007

AbstractThis study investigates the effectiveness of a marital distress prevention program for couples with low marital satisfaction with regard to a possible improvement of physical and psychological well‐being. Fifty‐nine couples, composing the intervention group, participated in a prevention program lasting 18 hours and focusing on the enhancement of coping resources (Couples Coping Enhancement Training). These couples were matched with 59 couples receiving no intervention (comparison group). The results reveal that the prevention program is able to improve psychological well‐being among both genders and life satisfaction among women. It seems that these effects are stable over 1 year. On the other hand, no significant effects could be observed on physical well‐being. Copyright © 2007 John Wiley & Sons, Ltd.
A new self‐report measure of emotion regulation in adolescents: The Regulation of Emotions Questionnaire
Authors: Phillips K. F. V. , Power M. J. 
Published: April 2007

AbstractEmotion regulation is an emerging field in psychology concerned with the processes involved in recognizing, monitoring, evaluating and modifying emotional reactions. Few measures have been developed specifically to assess individual differences in the use of emotion regulation strategies. This paper reports on a new self‐report instrument designed to assess the frequency with which adolescents use both functional and dysfunctional emotion regulation strategies, which draw on both internal (intrapersonal) and external (interpersonal) resources to regulate emotions. The new measure was used in a cross‐sectional survey of 225 adolescents. Factor analyses supported the structure of the measure, which has four scales: ‘internal‐functional’, ‘internal‐dysfunctional’, ‘external‐functional’ and ‘external‐dysfunctional’ emotion regulation. The new measure demonstrated good psychometric properties. Frequent use of dysfunctional emotion regulation was significantly positively correlated with parent reports of level of emotional and behavioural problems, and also with self‐reported level of psychosomatic health problems. Frequent use of functional emotion regulation was significantly positively correlated with self‐reported quality of life across a number of different dimensions. These results provide evidence for the validity of the measure. The results also highlight that assessment of both functional and dysfunctional emotion regulation is important. Copyright © 2007 John Wiley & Sons, Ltd.
The human immunodeficiency virus epidemic: A race against time for millions and the role of flow cytometry: A Caribbean and resource‐constrained country perspective
Authors: Abayomi Akin 
Published: April 2007

AbstractThere is a race against time for millions in the world today. Both the technology and the manpower are currently available to deliver the services that are required to meet the needs of the 40 million people currently living with HIV/AIDS, but at what price? The reality is therefore that we are a long shot away from this realization. What are the facts and why have we not achieved even the simplest deadlines set by the World Health Organization (WHO)? Are these objectives realistic? What role does hard science have to play in the search for cost‐effective solutions and futuristic effective options? To stem this unrelenting epidemic and convert the natural history of the disorder in those already living with the virus into one of chronicity, rather than one characterized by a dehumanizing and stigmatized death, requires a global commitment at all levels. This discussion examines the reality and offers a snapshot of capacity and experiences in the developing world. Crucially, it looks at the immediate and long term role of flow cytometry in the expanded care and treatment programs for developing nations. © 2007 Clinical Cytometry Society
Fine‐needle aspiration cytology of apocrine adenosis of the breast: Report on three cases
Authors: Watanabe Kazuo , Nomura Mizuko , Hashimoto Yuko , Hanzawa Miyoko , Hoshi Toshiyuki 
Published: April 2007

AbstractApocrine adenosis is a distinctive breast lesion, which can sometimes be misdiagnosed as malignant histologically. Although its histological characteristics have been well established, there are limited descriptions of its cytological features. We report fine‐needle aspiration (FNA) cytology of three cases of apocrine adenosis. There were diverse cytological features between cases, and in two cases, FNA smears were highly cellular. Naked nuclei were present in all cases, and were numerous in one. Enlarged nucleoli and anisonucleosis were common. Apocrine metaplasia with nuclear atypia mimicking apocrine carcinoma was prominent in one case, whereas one case lacked definite apocrine features. Regardless of their various atypical FNA cytologies, the nuclei were consistently less hyperchromatic in all cases. Although FNA cytology of apocrine adenosis has the potential to be misinterpreted as malignant, the naked nuclei of background and less hyperchromatic nuclear features may be useful in distinguishing apocrine adenosis from carcinoma. Being familiar with these distinctive breast lesions is also important in decreasing false positives. Diagn. Cytopathol. 2007;35:296–299. © 2007 Wiley‐Liss, Inc.
Cell blocks of breast FNAs frequently allow diagnosis of invasion or histological classification of proliferative changes
Authors: Istvanic Smiljana , Fischer Andrew H. , Banner Barbara F. , Eaton Donna M. , Larkin Anne C. , Khan Ashraf 
Published: April 2007

AbstractTwo major limitations of breast fine needle aspiration (FNA) compared with core needle biopsies (CNB) are the inability to determine whether a cancer is invasive and to classify proliferative lesions. We studied 40 consecutive “rapid cell blocks” from breast FNAs with surgical pathology follow‐up to test whether cell blocks can overcome these limitations. Of 25 carcinomas, invasion could be identified in the cell block sections in 11 (44%). One cystosarcoma phyllodes was suspected based on the cell block sections. Cell blocks from 12 of 14 benign breast FNAs showed sufficient cells to assign a histologic diagnosis of no hyperplasia (1 case, confirmed on follow‐up) and usual hyperplasia (11 cases; confirmed in eight of 11 on follow‐up). Specific histologic diagnoses included intraductal papilloma (2 cases), and in situ lobular neoplasia (2 cases). Cell blocks complement smears and monolayers and appear to overcome major limitations of breast FNA. Diagn. Cytopathol. 2007;35:263–269. © 2007 Wiley‐Liss, Inc.
Summary of ‘Hepatitis B immunisation for newborn infants of hepatitis B surface antigen‐positive mothers’
Authors: Milne Andrea 
Published: April 2007

AbstractThis is a commentary on a Cochrane review, published in this issue of EBCH, published as: Lee C, Gong Y, Brok J, Boxall EH, Gluud C. Hepatitis B immunisation for newborn infants of hepatitis B surface antigen‐positive mothers. Cochrane Database of Systematic Reviews 2006, Issue 2. Art. No.: CD004790. DOI: 10.1002/14651858.CD004790.pub2; and as a shorterned version as: Lee C, Gong Y, Brok J, Boxall EH, Gluud C. Effect of hepatitis B immunisation in newborn infants of mothers positive for hepatitis B surface antigen: systematic review and meta‐analysis. BMJ. 2006 Feb 11; 332: 328–36. DOI: 10.1136/bmj.38719.435833.7C.Further information for this Cochrane review is available in this issue of EBCH in the accompanying Commentary and Characteristics and Key Findings Tables articles. Copyright © 2007 John Wiley & Sons, Ltd.
Commentary on ‘Hepatitis B immunisation for newborn infants of hepatitis B surface antigen‐positive mothers’
Authors: van Rheenen Patrick F. , Verkade Henkjan J. 
Published: April 2007

AbstractThis is a commentary on a Cochrane review, published in this issue of EBCH, published as: Lee C, Gong Y, Brok J, Boxall EH, Gluud C. Hepatitis B immunisation for newborn infants of hepatitis B surface antigen‐positive mothers. Cochrane Database of Systematic Reviews 2006, Issue 2. Art. No.: CD004790. DOI: 10.1002/14651858.CD004790.pub2; and as a shorterned version as: Lee C, Gong Y, Brok J, Boxall EH, Gluud C. Effect of hepatitis B immunisation in newborn infants of mothers positive for hepatitis B surface antigen: systematic review and meta‐analysis. BMJ. 2006 Feb 11; 332: 328–36. DOI: 10.1136/bmj.38719.435833.7C.Further information for this Cochrane review is available in this issue of EBCH in the accompanying EBCH Summary and Characteristics and Key Findings Tables articles. Copyright © 2007 John Wiley & Sons, Ltd.
Summary of ‘Late erythropoietin for preventing red blood cell transfusion in preterm and/or low birth weight infants’
Authors: Milne Andrea 
Published: April 2007

AbstractThis is a summary of a Cochrane review, published in this issue of EBCH, first published as: Aher S, Ohlsson A. Late erythropoietin for preventing red blood cell transfusion in preterm and/or low birth weight infants. Cochrane Database of Systematic Reviews 2006, Issue 3. Art. No.: CD004868. DOI: 10.1002/14651858.CD004868.pub2.Further information for this Cochrane review is available in this issue of EBCH in the accompanying Commentary and Characteristics and Key Findings Tables articles. Copyright © 2007 John Wiley & Sons, Ltd.
Commentary on ‘Conjugate vaccines for preventing meningococcal C meningitis and septicaemia’, with comment from EBCH editor
Authors: McCoy Andrea C. S. , Aronoff Stephen C. 
Published: April 2007

AbstractThis is a commentary on a Cochrane review, published in this issue of EBCH, first published as: Conterno LO, Silva Filho CR, Rüggeberg JU, Heath PT. Conjugate vaccines for preventing meningococcal C meningitis and septicaemia. Cochrane Database of Systematic Reviews 2006, Issue 3. Art. No.: CD001834. DOI: 10.1002/14651858.CD001834.pub2.Further information for this Cochrane review is available in this issue of EBCH in the accompanying EBCH Summary and Characteristics and Key Findings Tables articles. Copyright © 2007 John Wiley & Sons, Ltd.