Search results for "IAP"
showing 10 items of 554 documents
Progressive femoral cortical and cancellous bone density loss after uncemented tapered-design stem fixation
2010
Background Aseptic implant loosening and periprosthetic bone loss are major problems after total hip arthroplasty (THA). We present an in vivo method of computed tomography (CT) assisted osteodensitometry after THA that differentiates between cortical and cancellous bone density (BD) and area around the femoral component.Method Cortical and cancellous periprosthetic femoral BD (mg CaHA/mL), area (mm2) and contact area between the prothesis and cortical bone were determined prospectively in 31 patients 10 days, 1 year, and 6 years after uncemented THA (mean age at implantation: 55 years) using CT-osteodensitometry.Results 6 years postoperatively, cancellous BD had decreased by as much as 41%…
Survey based assessment of diagnosis through periapical radiograph and CBCT and treatment of root resorption with Brazilian and American dentists and…
2020
Background This study assesses and compares the knowledge level of endodontists (ENDs) and general dental practitioners (GPs) from Brazil and United States of America (USA) in the diagnosis and treatment of internal and external inflammatory root resorptions through periapical radiographic (PA) and cone beam computed tomography (CBCT) examinations. Material and Methods A cross-sectional online questionnaire-based survey was presented to the volunteers containing questions regarding personal and professional profile, as well as three clinical cases of internal and external inflammatory root resorption. A series of multiple-choice questions about the diagnosis and treatment options were surve…
Aldo Tollini, La cultura del Tè in Giappone e la ricerca della perfezione, Piccola Biblioteca Einaudi, Torino 2014, 240 pp., € 22.00
2014
La recensione sottolinea i caratteri di collegamento tra la cultura cinese e la cultura giapponese a partire dallo spunto della cerimonia del tè. The review underlines the elements of continuity between the Chinese culture and the Japanese one starting from the tea ceremony tradition.
Structure and Photochemical Behavior of the Cyclodextrin Inclusion Complexes of the Benzoylthiophene-Derived Drugs Tiaprofenic Acid (=5-Benzoyl-α-met…
2001
The effect of β-cyclodextrin (β-CD) on the excited-state reactivity of the two benzoylthiophene derivatives, tiaprofenic acid (TPA; 2) and suprofen (SPF; 3) in their carboxylate forms is studied. The presence of β-cyclodextrin does not affect the nature of the photoproduced transients and the photoproducts, but increases the photodegradation quantum yields of both drugs. The efficiency of the photodecarboxylation process is enhanced. This effect is rationalized in the light of the inclusion of 2 and 3 in the β-CD cavity, affecting the energy of the lowest excited states of the drugs. The structure of the complexes is determined by induced circular dichroism, and molecular-mechanics and dyna…
Novel Terphenyls and 3,5-Diaryl Isoxazole Derivatives Endowed with Growth Supporting and Antiapoptotic Properties
2008
A new study on terphenyl and diaryl-isoxazole and -isoxazoline derivatives, maintaining a common 3-adamantyl-4-hydroxyphenyl moiety, has been conducted to find compounds with growth supporting and antiapoptotic properties. Unexpectedly, diphenyisoxazole derivatives bearing a nitro group replacing the carboxylic function have been found with the highest cell protective activity within the series, in complete and in serum-free conditions. Inhibition of apoptosis induced by daunorubicin has also been observed for the most active compound.
Use of reversed-phase C18 Sep-Pak cartridges for the purification and concentration of sepiapterin and other pteridines
1985
Abstract Several pteridines have been tested for their ability to bind to C 18 Sep-Pak. Riboflavin, sepiapterin, deoxysepiapterin, 6-acetyl-7,8-dihydropterin, 6-acetyldihydrohomopterin and 3′-hydroxysepiapterin were strongly retained and all but 6-acetyldihydrohomopterin quantitatively recovered upon elution with 2 ml of methanol. The effect of the concentration and volume of the sample, pH and salt concentration on the retention of sepiapterin have been studied. The procedure was very useful for the purification, desalting, solvent exchange and concentration of pteridines having high affinity for the cartridge. C 18 Sep-Pak has been applied succesfully to sample clean-up prior to high-perf…
Mechanisms of photosensitization by drugs: Involvement of tyrosines in the photomodification of proteins mediated by tiaprofenic acid in vitro
1997
The photosensitizing potential of drugs must be related to their photoreactivity towards the target biomolecules. In this context, a representative photosensitizing drug (tiaprofenic acid) was co-irradiated with a model protein, bovine serum albumin (BSA). This led to a significant degree of protein crosslinking and to the formation of trace amounts of drug-BSA photoadducts. Amino acid analysis of the hydrolysed (HC1) protein showed that His and Tyr undergo a dramatic decrease (approx. 90%) as a consequence of drug-mediated photodynamic processes. When the drug was irradiated in the presence of the pure amino acids, extensive phototransformation of the latter was observed. Other photosensit…
Estudio de la velocidad de curación ósea tras la realización de la cirugía periapical mediante la tomografía computarizada de haz cónico
2022
Introducción: el objetivo de este estudio fue evaluar, tras la realización de la cirugía periapical, la velocidad de curación (por mes) del hueso apical y el resultado final de la curación ósea, desde el punto de vista de la tomografía computarizada de haz cónico (TCHC). También se tuvieron en cuenta la relación entre la velocidad y la calidad de curación ósea con los factores clínicos preoperatorios. Métodos: se buscó en una base de datos clínica los pacientes que habían recibido cirugía periapical y además disponían de una THCH antes y después de la operación. Se realizó un análisis volumétrico de las imágenes pre y postoperatorias, para ello se utilizó el programa de software Planmeca (P…
Northward range expansion requires synchronization of both overwintering behaviour and physiology with photoperiod in the invasive Colorado potato be…
2014
Abstract. Photoperiodic phenological adaptations are prevalent in many organisms living in seasonal environments. As both photoperiod and growth season length change with latitude, species undergoing latitudinal range expansion often need to synchronize their life cycle with a changing photoperiod and growth season length. Since adaptive synchronization often involves a large number of time-consuming genetic changes, behavioural plasticity might be a faster way to adjust to novel conditions. We compared behavioural and physiological traits in overwintering (diapause) preparation in three latitudinally different European Colorado potato beetle (Leptinotarsa decemlineata) populations reared u…
La Justicia del Corazón-O'tan. Armonía y derechos indígenas desde la sabiduría tseltal en Chiapas. Descolonizando los derechos humanos, tejiendo inte…
2016
La interculturalidad es uno de los grandes retos del siglo XXI y pone en crisis el paradigma eurocéntrico y hegemónico de los derechos humanos, basado en la centralidad del Estado y en el carácter jurídico-normativo de los mismos. La teoría crítica de derechos humanos, desarrollada por Joaquín Herrera y David Sánchez (entre otros) complejiza los derechos humanos para entenderlos como procesos sociales, normativos e institucionales encaminados a defender la vida digna de ser vivida. La presente tesis a través de una metodología de colabor con el Centro de Derechos Indígenas de Chilón (Chiapas) intenta conocer cómo se reapropian los derechos humanos desde un contexto socio-político, cultural …