bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preparation and Photoluminescence Properties of Eu3+‐Doped BaZrO3 Nanotube Arrays
Authors: Guo Limin , Wang Xiaohui , Zhong Caifu , Li Longtu 
Published: July 2011

The BaZrO3:Eu hybrid nanotube arrays with different Eu3+‐doped contents are synthesized by hydrothermal method using ZrO2 nanotube layers as template. XRD, SEM, and TEM analysis reveal that the BaZrO3:Eu nanotubes have a cubic perovskite structure with uniform diameter (about 150 nm) and tubular wall. Photoluminescence property of the hybrid nanotube arrays are studied at room temperature. PL spectra, excited at 283 nm, consist of 4f→4f emission transitions from the 5D0 excited level of the Eu3+ ions to the 7FJ (J = 0˜4) levels. The intense 5D0–7F0,2 transition suggests the local defects and distortion of EuO6 octahedra in the BaZrO3:Eu host lattice. In addition, the dependence of luminescence intensity on the Eu3+ concentration in the nanotube arrays is studied.
Temperature Stability in Dy‐Doped (Ba0.99Ca0.01)(Ti0.98Zr0.02)O3 Lead‐Free Ceramics with High Piezoelectric Coefficient
Authors: Li Wei , Xu Zhijun , Chu Ruiqing , Fu Peng , Zang Guozhong 
Published: July 2011

We report on excellent temperature stability of the Dy‐doped (Ba0.99Ca0.01)(Ti0.98Zr0.02)O3 (BCZT‐D) ceramics with high piezoelectric coefficient of d33 = 366 pC/N and planar electromechanical coupling factor of kp = 43.0%. Meanwhile, Curie temperature of the BCZT‐D ceramics is found to be 125°C. Greatly improved temperature stability of the electromechanical coupling coefficients is found over a common usage temperature range between 20°C and 100°C, in which the BCZT‐D ceramics exhibit pure tetragonal phase. The results indicate that the BCZT‐D ceramics are promising lead‐free materials for practical applications.
La administración y financiación de la licencia remunerada por enfermedad
Authors: SCHLIWEN Anke , EARLE Alison , HAYES Jeff , HEYMANN S. Jody 
Published: July 2011

Resumen.Es necesario que los poderes públicos nacionales que acarician la posibilidad de implantar o reformar la licencia remunerada por enfermedad conozcan los métodos que se usan para costear esta prestación. Basándose en datos mundiales sobre la legislación al respecto, los autores infieren que el tipo de régimen vigente—responsabilidad del empresario, seguro social, asistencia social o una mezcla de ellos—influye mucho en la duración y cuantía de la prestación. Sin embargo, no hallan ninguna relación estrecha de la duración y la generosidad de la licencia por enfermedad con indicadores económicos como el PIB por habitante, la tasa de desempleo o la competitividad nacional. Por último, los autores estudian los instrumentos capaces de garantizar una licencia eficaz y un rendimiento económico óptimo.
Pensiones públicas y envejecimiento de la sociedad. ¿Los inmigrantes son la solución?
Authors: SERRANO Felipe , EGUÍA Begoña , FERREIRO Jesús 
Published: July 2011

Resumen.El envejecimiento de la población genera problemas de viabilidad financiera a los sistemas de pensiones de muchos países desarrollados que se basan en el método de reparto. Un posible remedio del que se habla a menudo es la inmigración, sobre todo en los países que reciben a muchos trabajadores extranjeros. Los autores proponen un modelo para analizar el impacto de los flujos de inmigración en la sostenibilidad financiera del citado sistema, sirviéndose de España como ejemplo práctico. Muestran que, a pesar de su magnitud, estas corrientes no resuelven el problema, por lo que deben hacerse reformas paramétricas. Los autores exponen también la intensidad de los cambios necesarios para mantener el equilibrio financiero del sistema.
Seguridad social para los trabajadores migrantes chinos
Authors: WANG Zhikai 
Published: July 2011

Resumen.La dispersión de las políticas sociales y laborales de China es un problema cada vez más grave que amenaza con socavar las relaciones entre el trabajo y el capital y la liberalización económica del país. El desarrollo del sector privado tropieza con la ausencia de un sistema integral de protección social para quienes migran del campo a las ciudades. Estos trabajadores son fundamentales para las nuevas empresas, pero muchos de ellos no gozan de los mismos derechos de seguridad social que la población tradicional urbana. Si bien el Gobierno ha empezado a intensificar la vigilancia del cumplimiento de la normativa vigente, para resolver el problema tal vez sean necesarias algunas reformas institucionales.
The number of missing teeth in people of the Edo period in Japan in the 17th to 19th centuries
Authors: Fujita Hisashi 
Published: July 2011

doi: 10.1111/j.1741‐2358.2011.00511.xThe number of missing teeth in people of the Edo period in Japan in the 17th to 19th centuriesObjective:  The aims of this study were to examine the number of missing teeth in the people of the Edo period (or number of remaining teeth) and to contribute to the 8020 movement proposed in Japan to help people retain 20 or more of their own teeth until the age of 80.Background:  The study of dentition in ancient skeletal remains of our ancestors from multiple perspectives can yield information that can contribute to the study of physical anthropology and the leading edge of modern dental research.Materials and methods:  The materials were 82 excavated individuals (52 males and 30 females) from 1603 to 1868 whose maxillas and mandibles were both examinable. The age and sex were estimated by anthropological methods, and the individuals were divided into five groups. The status of missing teeth was compared between groups, and a chi‐square test was used to test significant differences between groups. The rates of tooth loss were examined in the maxillas and mandibles.Results:  In the people of the Edo period, many teeth remained in good condition until early to late middle age. There were more remaining teeth in these individuals than in modern‐day individuals. However, the Edo people clearly showed increased tooth loss with age. There were no differences in tooth loss by sex. The tooth type with a high rate of tooth loss was posterior teeth, but incisor loss also occurred with ageing. Mandibular canines were most likely to be remaining.Conclusion:  The Edo people had more remaining teeth than modern‐day society. This finding was unexpected. The notion that “people of long past ages lost more teeth more quickly” does not seem to apply to people in the Edo period in Japan.
Correlation between residual ridge resorption and radiomorphometric indices
Authors: Imirzalioglu Pervin , Yuzugullu Bulem , Gulsahi Ayse 
Published: July 2011

doi: 10.1111/j.1741‐2358.2011.00514.xCorrelation between residual ridge resorption and radiomorphometric indicesObjectives:  The study evaluated the relationship between residual ridge resorption (RRR) and radiomorphometric indices, including mandibular cortical index (MCI), mandibular cortical width (MCW) and panoramic mandibular index (PMI), along with demographic factors.Material and methods:  Panoramic radiographs of 1863 patients over 20 years of age were assessed. Gender, age and dental status of each patient were recorded. Relationships between RRR and demographic factors and radiomorphometric indices were evaluated using chi‐square and Fisher’s exact tests with level of significance of p = 0.05.Results:  Residual ridge resorption was not affected by gender (p > 0.05), but was more frequently seen in patients over the age of 50 compared with those below 49 years of age (p < 0.001). RRR was significantly associated with edentulism (p < 0.001) and with severe erosions of endosteal margin of mandible (p < 0.05). RRR was more frequently seen in patients with PMI below 0.30 (p < 0.001) and with MCW below 3 mm in 50‐ to 69‐year‐old age group (p < 0.001).Conclusions:  Patients younger than 50 years of age who demonstrate severe erosions of endosteal margin of mandible and have MCW < 3 mm and PMI < 0.30 appear to be suitable candidates for early implant placement or for maintaining roots or natural teeth to preserve bone, regardless of gender.
Flexural and bond strengths of relined denture polymers assessed by four‐point bending tests and Weibull analysis
Authors: Polyzois Gregory L. , Lagouvardos Panagiotis E. , Frangou Maria J. 
Published: July 2011

doi: 10.1111/j.1741‐2358.2011.00515.xFlexural and bond strengths of relined denture polymers assessed by four‐point bending tests and Weibull analysisObjectives:  The aim of this study was to (1) investigate the flexural strengths of three denture resins i.e. heat, photopolymerised and microwaved and how it was affected by relining with auto‐ and visible light–polymerised hard reliners, (2) investigate the bond strengths between denture resins and hard reliners and (3) interpret the results of both tests by utilising Weibull analysis.Materials and methods:  Specimens (65 × 10 × 2.5 mm) from denture resins, relined and bonded combinations were tested using a four‐point bending test in a universal testing machine and a crosshead speed of 5 mm/min. Ten specimens for each bulk resin and denture resin–reliner combination for a total of 150 were tested.Results:  Statistical analysis indicated significant differences between bulk materials (p < 0.001) and between reliners (p < 0.001) for flexural and bond strength tests.Conclusion:  It was concluded that (1) the four‐point flexural strength was different between the denture base materials, (2) flexure strength between bulk and relined or between relined with autopolymerised and photopolymerised bases was different, (3) flexural strength among relined denture bases was different and (4) bond strengths among relined denture bases were different.
Relationship between nutritional status and tooth loss in an older population from Sri Lanka
Authors: Perera R. , Ekanayake L. 
Published: July 2011

doi: 10.1111/j.1741‐2358.2011.00518.xRelationship between nutritional status and tooth loss in an older population from Sri LankaObjective:  To determine the relationship between tooth loss and nutritional status in older individuals in Sri Lanka.Background:  In developing countries, both the prevalence of malnutrition and oral disease are high among older individuals.Materials and methods:  Four hundred and eighty subjects aged 60 years and above were selected to be included in the sample, of which 437 responded giving an overall response rate of 91%. Data were collected by means of an interviewer administered questionnaire, an oral examination and a physical examination to determine height and weight to calculate the body mass index (BMI).Results:  Based on the WHO cut‐offs for BMI, 62, 20 and 18% of the sample were normal, under‐ and over‐weight, respectively. A multinomial logistic regression analysis with normal weight as the reference category revealed that missing teeth and denture status were associated with being underweight but not with being overweight.Conclusion:  In older individuals, tooth loss is significantly associated with being underweight.
The effect of long‐term disinfection procedures on hardness property of resin denture teeth
Authors: Campanha Nara Hellen , Pavarina Ana Cláudia , Jorge Janaina Habib , Vergani Carlos Eduardo , Machado Ana Lucia , Giampaolo Eunice Teresinha 
Published: July 2011

doi: 10.1111/j.1741‐2358.2011.00520.xThe effect of long‐term disinfection procedures on hardness property of resin denture teethObjective:  The aim of the study was to evaluate the effect of long‐term disinfection procedures on the Vickers hardness (VHN) of acrylic resin denture teeth.Material and methods:  Five acrylic resin denture teeth (Vipi Dent Plus‐V, Trilux–T, Biolux‐B, Postaris‐P and Artiplus‐A) and one composite resin denture teeth (SR‐Orthosit‐O) were embedded in heat‐polymerised acrylic resin within polyvinylchloride tubes. Specimens were stored in distilled water at 37°C for 48 h. Measurements of hardness were taken after the following disinfection procedures: immersion for 7 days in 4% chlorhexidine gluconate or in 1% sodium hypochlorite (CIm and HIm group, respectively) and seven daily cycles of microwave sterilisation at 650 W for 6 min (MwS group). In the WIm group, specimens were maintained in water during the time used to perform the disinfection procedures (7 days). Data were analysed with anova followed by the Bonferroni procedure (α = 0.01).Results:  Microwave disinfection decreased the hardness of all acrylic resin denture teeth (p < 0.001). Immersion for 7 days in 4% chlorhexidine gluconate or distilled water had significant effect on the hardness of the acrylic resin denture teeth A (p < 0.01), and 1% sodium hypochlorite on teeth T (p < 0.01). All disinfection procedures decrease the hardness of the composite resin denture teeth (p < 0.01). Teeth O exhibited the highest and teeth V the lowest hardness values in the control group (p < 0.01).Conclusions:  Disinfection procedures changed the hardness of resin denture teeth.
The Effectiveness of an Internet-Based Psychological Treatment Program for Female Sexual Dysfunction
Authors: Jones L. M. , McCabe M. P. 
Published: July 2011

Abstract

Introduction
There has been limited evaluation of the effectiveness of psychological interventions for female sexual dysfunction (FSD). Furthermore, none of these studies have evaluated the effectiveness of these programs delivered over the Internet.

Aim
The current study evaluated an Internet-based psychological treatment program for FSD. Revive consisted of three well-established and validated treatment components: communication skills training, sensate focus exercises, and regular contact with a therapist.

Main Outcome Measures
Outcome measures included: the Female Sexual Function Index; the Depression, Anxiety, Stress Scale; the Sexual Function Scale; and the Personal Assessment of Intimacy in Relationships.

Methods
In total, 39 women (17 in treatment group and 22 in control group) completed the program. The mean age for the treatment group was 34.91 (standard deviation [SD] = 10.27) and 33.30 years (SD = 9.34) for the control group.

Results
The results demonstrated that women who completed treatment reported improved sexual and relationship functioning in comparison with those who received no treatment.

Conclusions
These findings highlight the suitability of the Internet for providing psychological treatment for FSD and for targeting the individual and relationship factors often associated with these disorders.
Efficacy and Safety of Vardenafil for the Treatment of Erectile Dysfunction in Men with Metabolic Syndrome: Results of a Randomized, Placebo-Controlled Trial
Authors: Schneider T. , Gleißner J. , Merfort F. , Hermanns M. , Beneke M. , Ulbrich E. 
Published: July 2011

AbstractIntroductionThe prevalence of erectile dysfunction (ED) is increased in men with metabolic syndrome compared with the general population.AimThe aim of this study was to evaluate the efficacy and safety of vardenafil vs. placebo in men who had ED and metabolic syndrome.MethodsThis was a 12-week, double-blind, randomized, multicenter, parallel-group, placebo-controlled prospective study in men with ED and metabolic syndrome (assessed by the International Diabetes Federation criteria). Vardenafil was administered at a starting dose of 10 mg, which could be titrated to 5 mg or 20 mg after 4 weeks, depending on efficacy and tolerability.Main Outcome MeasuresPrimary efficacy measures were the erectile function domain of the International Index of Erectile Function (IIEF-EF) and Sexual Encounter Profile (SEP) diary questions 2/3. Secondary efficacy measures included SEP1, a diary question assessing ejaculation, the percentage of men achieving “return-to-normal” erectile function, and the percentage of men who titrated to a different dose. Adverse events (AEs) were recorded throughout the study.ResultsThe intent-to-treat population included 145 men (vardenafil, N = 75; placebo, N = 70). Baseline least squares IIEF-EF domain scores were low (vardenafil: 12.0; placebo: 12.7), indicative of moderate-to-severe ED. Vardenafil was statistically significantly superior to placebo for all primary efficacy measures (P &lt; 0.0001) and showed nominally statistically significant superiority compared with placebo for SEP1/ejaculation success rates (P = 0.0003 and P &lt; 0.0001, respectively) and the percentage of subjects reporting “return-to-normal” erectile function (P = 0.0004). Treatment-emergent AEs were mild-to-moderate in severity and consistent with the known AE profile of phosphodiesterase type 5 inhibitors.ConclusionsThis is the first study to assess the efficacy and safety of vardenafil, taken alone, for ED therapy in a population of men who all had metabolic syndrome. Although baseline erectile function in these patients was low, vardenafil treatment was associated with significant improvements in erectile function and rates of successful intercourse, and was well tolerated.
Does the Female Sexual Distress Scale-Revised Cover the Feelings of Women with HSDD?
Authors: DeRogatis L. , Pyke R. , McCormack J. , Hunter A. , Harding G. 
Published: July 2011

Abstract

Introduction
Distress associated with low sexual desire is a key feature of hypoactive sexual desire disorder (HSDD). Accurate, reliable, and easy-to-use diagnostic tools to measure such distress are required. The Female Sexual Distress Scale-Revised (FSDS-R) has been shown to have good discriminant validity, test–retest reliability, and internal consistency in measuring sex-related personal distress in women with HSDD. However, the content validity (relevance, clarity, comprehensiveness) of the scale must also be established.

Aim
The aim of this study was to assess the content validity of the FSDS-R and to examine the potential of Item 13 as a stand-alone measure of distress associated with decreased sexual desire.

Methods
A single-visit content validation study was conducted in three centers in the United States. Women were screened for HSDD; those with HSDD completed the FSDS-R and then underwent debriefing to capture information on their perceptions of the instrument. Participants also rated the relevancy of every FSDS-R item, from 0 (“not at all relevant”) to 4 (“extremely relevant”).

Main Outcome Measures
Female HSDD patients' ratings of the relevance and ease of understanding of the 13 items of the FSDS-R.

Results
Twenty-five women with HSDD were interviewed. Mean relevancy ratings ranged from 1.96 (Item 9) to 3.33 (Item 13). Most participants (76–100%) found every item clear and easy to understand. Item 13 alone demonstrated good content validity, and 56% of participants felt that it covered all of their feelings about their low sexual desire.

Conclusions
This study established the content validity of the FSDS-R and demonstrated that the FSDS-R total score is a relevant endpoint for women with HSDD. The tool's one item specific to low sexual desire (Item 13) was given the highest score and highest relevancy of all items, and over half the sample felt that it covered all of their feelings about their low sexual desire.
Oral Agents for the Treatment of Premature Ejaculation: Review of Efficacy and Safety in the Context of the Recent International Society for Sexual Medicine Criteria for Lifelong Premature Ejaculation
Authors: McMahon C. G. , Porst H. 
Published: July 2011

Abstract

Introduction
New diagnostic criteria for lifelong premature ejaculation (PE) have been proposed by the International Society of Sexual Medicine (ISSM), including an intravaginal ejaculatory latency time (IELT) of less than about 1 minute, lack of control over ejaculation, and PE-related distress or bother.

Aim
The aim of this study was to review evidence supporting the efficacy and safety of oral agents for the treatment of PE in the context of the new ISSM criteria.

Methods
The PubMed database was searched for randomized, double-blind, placebo-controlled studies of oral agents in PE that included stopwatch measurements of IELT.

Main Outcome Measures
The main outcome measure used for this study was a review of the efficacy and safety data of oral agents for PE aligned with ISSM criteria.

Results
Since the latest meta-analyses using similar criteria (conducted in 2004 and 2005 for selective serotonin reuptake inhibitors [SSRIs] and phosphodiesterase type 5 [PDE-5] inhibitors, respectively), eight studies evaluated SSRIs vs. placebo, one compared SSRIs, two evaluated PDE-5 inhibitors, and one evaluated an SSRI/PDE-5 inhibitor combination. New agents included dapoxetine (five studies) and tramadol (one study). Six studies enrolled men who met an approximation of the ISSM criteria. Although evidence suggests that most SSRIs, tramadol, and dapoxetine increase IELT to varying degrees, few studies included control over ejaculation and PE-related distress or bother as enrollment criteria or used validated patient-reported outcome instruments to evaluate these parameters. Among studies that provided comprehensive adverse event data, safety and tolerability observations in men with PE were generally similar to those observed in other populations; however, with the exception of dapoxetine, known SSRI-class effects (e.g., withdrawal syndrome) were not evaluated in men with PE.

Conclusions
This systematic review of well-controlled clinical trials in PE has demonstrated that while many oral agents, particularly SSRIs, tramadol, and dapoxetine, have proven effective and safe for the treatment of men with PE, few have been evaluated for their effects on the specific elements of the ISSM criteria.
Factors Predicting Early and Late Phase Decline of Sexual Health-Related Quality of Life Following Radical Prostatectomy
Authors: Kimura M. , Bañez L. L. , Schroeck F. R. , Gerber L. , Qi J. , Satoh T. , Baba S. , Robertson C. N. , Walther P. J. , Donatucci C. F. , Moul J. W. , Polascik T. J. 
Published: July 2011

Abstract

Introduction
The association between early and late phase sexual health-related quality of life (HRQoL) following radical prostatectomy (RP) is unclear. Moreover, factors that predict either early or late sexual HRQoL decline have not been fully investigated.

Aim
The aim of this study was to evaluate the correlation between early and late phase sexual HRQoL decline, and identify clinical parameters that predict substantial sexual HRQoL decline after surgery in the early phase (3 months) and late phase (20 months) following RP.

Methods
We analyzed data on 2,345 consecutive patients who underwent radical retropubic prostatectomy, radical perineal prostatectomy, or robotic-assisted laparoscopic prostatectomy between 2001 and 2009 from the Duke Prostate Center database.

Main Outcome Measure
Sexual HRQoL was assessed using the Expanded Prostate Cancer Index Composite instrument at baseline, early and late phase after surgery. The Spearman rank test was used to calculate correlation coefficients between early and late phase sexual HRQoL decline. Logistic regression analysis was performed to identify factors associated with substantial sexual HRQoL decline during both phases.

Results
Of 406 men who met our criteria, 217 (53.5%) men had normal erectile function, whereas 189 (46.5%) men had erectile dysfunction at baseline. Declines of sexual HRQoL during early phase had a significant association with that of a decline during late phase (r = 0.48, P &lt; 0.001). In logistic regression, older age at surgery (odds ratio [OR], 1.06; P = 0.007 and OR, 1.08; P = 0.001), African-American race (OR, 4.32; P = 0.001 and OR, 3.13; P = 0.017), and overall comorbidity (OR, 1.43; P = 0.072 and OR, 1.72; P = 0.010) were consistently associated with substantial decline of sexual HRQoL in both early and late phases.

Conclusions
Sexual HRQoL at early and late phases after RP were strongly correlated. Additionally, several factors were identified to be a predictor for decline of sexual HRQoL. Our findings may be used to advise patients who possess aforementioned risk factors during both phases.