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Search Results: 1 - 10 of 8319 matches for " Catherine Vidal "
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Instrumental Rotation for Persistent Fetal Occiput Posterior Position: A Way to Decrease Maternal and Neonatal Injury?
Fabien Vidal, Caroline Simon, Christelle Cristini, Catherine Arnaud, Olivier Parant
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0078124
Abstract: Objective To evaluate immediate perineal and neonatal morbidity associated with instrumental rotations performed with Thierry’s spatulas for the management of persistent posterior occiput (OP) positions. Methods Retrospective study including all persistent occiput posterior positions with vaginal OP delivery, from August 2006 to September 2007. Occiput anterior deliveries following successful instrumental rotation were included as well. We compared maternal and neonatal immediate outcomes between spontaneous deliveries, rotational and non rotational assisted deliveries, using χ2 and Anova tests. Results 157 patients were enrolled, comprising 46 OP spontaneous deliveries, 58 assisted OP deliveries and 53 deliveries after rotational procedure. Instrumental rotation failed in 9 cases. Mean age and parity were significantly higher in the spontaneous delivery group, while labor duration was shorter. There were no significant differences in the rate of severe perineal tears and neonatal adverse outcomes between the 3 groups. Conclusion Instrumental rotation using Thierry’s spatulas was not associated with a reduced risk of maternal and neonatal morbidity for persistent OP deliveries. Further studies are required to define the true interest of such procedure in modern obstetrics.
Oestrogen deficiency modulates particle-induced osteolysis
Christophe Nich, Jean Langlois, Arnaud Marchadier, Catherine Vidal, Martine Cohen-Solal, Hervé Petite, Moussa Hamadouche
Arthritis Research & Therapy , 2011, DOI: 10.1186/ar3381
Abstract: Polyethylene (PE) particles were implanted onto the calvaria of normal controls, sham-ovariectomized (OVX), OVX mice and OVX mice supplemented with oestrogen (OVX+E). After 14 days, seven skulls per group were analyzed using a high-resolution micro-computed tomography (micro-CT) and histomorphometry, and for tartrate-specific alkaline phosphatase. Five calvariae per group were cultured for the assay of IL-1β, IL-6, TNF-α and receptor activator of the nuclear factor κB (RANKL) secretion using quantitative ELISA. Serum IL-6 concentrations were obtained. The expression of RANKL and osteoprotegerin (OPG) mRNA were evaluated using real-time PCR.As assessed by μCT and by histomorphometry, PE particles induced extensive bone resorption and an intense inflammatory reaction in normal controls, sham-OVX and OVX+E mice, but not in the OVX mice group. In normal controls, sham-OVX and OVX+E mice, PE particles induced an increase in serum IL-6, in TNF-α and RANKL local concentrations, and resulted in a significant increase in RANKL/OPG messenger RNA (mRNA) ratio. Conversely, these parameters remained unchanged in OVX mice after PE implantation.Oestrogen privation in the osteolysis murine model ultimately attenuated osteolytic response to PE particles, suggesting a protective effect. This paradoxical phenomenon was associated with a down-regulation of pro-resorptive cytokines. It is hypothesized that excessive inflammatory response was controlled, illustrated by the absence of increase of serum IL-6 in OVX mice after PE implantation.Aseptic loosening of total joint replacements develops as a consequence of periprosthetic osteolysis, caused by a macrophage-mediated inflammatory reaction [1,2]. Although it is well established that generation of polyethylene (PE) particles by the bearing couple is correlated with the risk for revision due to aseptic loosening [3], great variations in the degree of osteolysis are sometimes observed in clinical practice. This suggests that patient-rela
The Relationship between Energy Literacy and Environmental Sustainability  [PDF]
Catherine Dwyer
Low Carbon Economy (LCE) , 2011, DOI: 10.4236/lce.2011.23016
Abstract: Sustainability, first identified as a characteristic of eco-systems, is the capacity to maintain a process indefinitely. Environmental sustainability receives significant public and government attention, triggered by concerns about climate change, decreasing energy supplies, and increasing food costs. Colleges and universities receive positive notice for their greening efforts, and the academy is expected to be a leader in efforts to improve sustainability. Therefore coursework and curricula must be developed to train students about sustainable resource consumption processes. This paper describes curricula materials related to energy literacy, defined as conceptual fluency with the economic and social components of energy use. These materials were developed and piloted over a three year period, and were tested with a pre- and post-course survey administered with questions based on the New Environmental Paradigm (NEP) and Environmentally Responsible Behavior (ERB). The findings of this study suggest that discussion of sustainability with disaster themes triggers anxiety that interferes with the development of ERB. In contrast, materials emphasizing the pragmatic necessity and benefits derived from sustainable practices relate to improvements in ERB. This suggests sustainability curricula should mitigate anxiety aroused by the topic, and instead emphasize pragmatic motivations for changing energy consumption patterns.
Film Subtitles as a Successful Vocabulary Learning Tool  [PDF]
Catherine Kanellopoulou
Open Journal of Modern Linguistics (OJML) , 2019, DOI: 10.4236/ojml.2019.92014
Abstract: Films are a valuable source of authentic language material, but what makes them superior to other types of authentic materials is the existence of a full storyline which leads to the increased engagement of the viewer. Despite the fact that teachers intuitively know this particular activity which may enhance language learning there is little research that has sought to thoroughly examine its potential impact on vocabulary acquisition and retention. While most studies conclude that the type of subtitling is an important factor influencing vocabulary learning; defining which particular type of subtitling is most effective seems difficult to determine and results in this area are somewhat inconclusive. Further research is, therefore, necessary to determine which type of subtitling would lead to optimum results in vocabulary acquisition and retention.
Temperature-Pressure Profile of the hot Jupiter HD 189733b from HST Sodium Observations: Detection of Upper Atmospheric Heating
Catherine M. Huitson,David K. Sing,Alfred Vidal-Madjar,Gilda E. Ballester,Alain Lecavelier des Etangs,Jean-Michel Désert,Frédéric Pont
Physics , 2012, DOI: 10.1111/j.1365-2966.2012.20805.x
Abstract: We present transmission spectra of the hot Jupiter HD 189733b taken with the Space Telescope Imaging Spectrograph aboard HST. The spectra cover the wavelength range 5808-6380 Ang with a resolving power of R=5000. We detect absorption from the NaI doublet within the exoplanet's atmosphere at the 9 sigma confidence level within a 5 Ang band (absorption depth 0.09 +/- 0.01%) and use the data to measure the doublet's spectral absorption profile. We detect only the narrow cores of the doublet. The narrowness of the feature could be due to an obscuring high-altitude haze of an unknown composition or a significantly sub-solar NaI abundance hiding the line wings beneath a H2 Rayleigh signature. We compare the spectral absorption profile over 5.5 scale heights with model spectral absorption profiles and constrain the temperature at different atmospheric regions, allowing us to construct a vertical temperature profile. We identify two temperature regimes; a 1280 +/- 240 K region derived from the NaI doublet line wings corresponding to altitudes below ~ 500 km, and a 2800 +/- 400 K region derived from the NaI doublet line cores corresponding to altitudes from ~ 500-4000 km. The zero altitude is defined by the white-light radius of Rp/Rstar=0.15628 +/- 0.00009. The temperature rises with altitude, which is likely evidence of a thermosphere. The absolute pressure scale depends on the species responsible for the Rayleigh signature and its abundance. We discuss a plausible scenario for this species, a high-altitude silicate haze, and the atmospheric temperature-pressure profile that results. In this case, the high altitude temperature rise for HD 189733b occurs at pressures of 10^-5 to 10^-8 bar.
Sustainable Happiness and Well-Being: Future Directions for Positive Psychology  [PDF]
Catherine O’Brien
Psychology (PSYCH) , 2012, DOI: 10.4236/psych.2012.312A177
Abstract:

Positive psychology has influenced many disciplines in a very short span of time. This paper argues that positive psychology will realize its most significant and far reaching impact when it is applied to sustainability efforts, locally, nationally and internationally. Such application may accelerate shifts in attitudes, policies, practice and behavior. Specifically, opportunities for integrating positive psychology with sustainability education are discussed including work in the area of sustainable happiness, Education for Sustainable Development (ESD) and positive education. Sustainable happiness underscores the interrelationship between human flourishing and ecological resilience. Thus sustainable happiness and well-being are integral to building sustainable futures, and positive psychology could be increasingly influential in leading research and education that heralds a new era of understanding and political will to embrace sustainability.

Epilepsy versus non-epileptic attack disorder: A diagnostic and therapeutic challenge  [PDF]
Catherine Smith, Jason Ramtahal
Case Reports in Clinical Medicine (CRCM) , 2013, DOI: 10.4236/crcm.2013.21001
Abstract:

Epilepsy and non-epileptic attack disorder (NEAD) share a vast number of clinical features, however the aetiology and management are very different. Video-EEG is the gold standard diagnostic tool and relies on the occurrence of seizure activity during assessment to make a diagnosis. Added complexity arises from the co-existence of epilepsy and NEAD, occurring in a significant proportion of patients. Comprehensive assessment and investigation is therefore required to prevent gross mistreatment in this diagnostically difficult subgroup. We present a case of NEAD with co-existing epilepsy and the challenges that this may present in clinical practice.

Reduced Fasting Protocol for Endoscopic Percutaneous Gastrostomy in Intubated Patients  [PDF]
Catherine Ho, John Culhane
International Journal of Clinical Medicine (IJCM) , 2013, DOI: 10.4236/ijcm.2013.48066
Abstract:

Background: Previous studies have shown that ICU patients receive only a fraction of their calculated nutritional goals, and that cumulative caloric deficit in the ICU has been correlated with poor outcome. One reason for this underfeeding is the frequent interruption of enteral nutrition. Many ICU patients receive enteral feeding formula via a nasogastric (NG) tube. Feeding is typically held for several hours prior to procedures due to the theoretical risk of aspiration. An alternative is to continue feeding up until the procedure begins, then stop the feeding and place the NG to suction. This evacuates the contents of the stomach and minimizes the risk of aspiration, while reducing the interruption of feeding that can result in malnutrition. Methods: This study is a review of prospectively gathered data including 55 sequential patients who underwent bedside percutaneous endoscopic gastrostomy (PEG) placement in a mixed ICU under a reduced fasting protocol. This was compared with a historical cohort of 33 critically ill trauma patients who fasted for at least 8 hours prior to the procedure. Under the reduced fasting protocol, enteral feeding via NG was continued up until the time of the procedure. The NG was then placed to suction, and sedation was given. The NG was left in place until the esophagus was cannulated, then it was removed. The PEG was placed in standard fashion, and feeding was resumed via the PEG immediately following the procedure. Results: We have documented no peri-procedural vomiting or aspiration. New diagnosis of pneumonia within 3

English and Malay Text Messages and What They Say about Texts and Cultures  [PDF]
Ernisa Marzuki, Catherine Walter
Open Journal of Modern Linguistics (OJML) , 2013, DOI: 10.4236/ojml.2013.34037
Abstract: This study of the pragmatics of cross-cultural text messages throws light on the evolution of new hybrid forms of literacy and on the complex ways that culture is expressed and mediated in second language/ second culture contexts. An investigation was carried out into the pragmatics of apology in first-language (L1) and second-language (L2) short messaging service text messages of adult Malay speakers who are proficient users of English, living and studying in an English-speaking university environment; and into L1 English users’ text apologies in the same context. Research questions included whether these proficient L2 English users would perform differently from L1 English users in this high-stakes speech act, and from their own L1 Malay use; and whether apologies in what has been called a hybrid medium would differ from those previously studied in writing, in speech and in other electronic media. Twenty-six native speakers of English and 26 native speakers of Malay responded via text messages to discourse completion tests (DCTs) in L1; the DCTs represented either high or low levels of offence calling for apologies. The Malay native speakers also responded to apology situations in L2 English. Data were coded using an adapted version of Cohen and Olshtain’s (1981) coding scheme. Analysis of the messages sent by participants revealed clear signs of a hybrid type of text that is differently conceptualised by the two communities. It also showed that the Malay users’ second language literacy was shaped in a complex way that sometimes accommodated the second language/second culture and sometimes retained first language/first culture values.
Case Report: Propriospinal Myoclonus  [PDF]
Catherine Smith, Jason Ramtahal
Case Reports in Clinical Medicine (CRCM) , 2014, DOI: 10.4236/crcm.2014.36081
Abstract:

This report presents a case of propriospinal myoclonus (PSM) in a previously fit and well female patient who presented with truncal jerking movements when relaxed. Propriospinal myoclonus is a rare condition, of which 80% of the aetiology is idiopathic. It is characterised by involuntary jerking movements of the trunk due to spreading activity via intrinsic propriospinal pathways along the spinal cord. Polymyography is mandatory in the diagnosis of priopriospinal myoclonus however in discerning the differential diagnoses it is inferior to magnetic resonance diffusion tensor imaging. The management of propriospinal myoclonus is dependent on aetiology. Clonazepam has been shown to be effective in the treatment of idiopathic PSM for symptomatic relief.

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