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Search Results: 1 - 10 of 10454 matches for " Jonathan Lisinski "
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Neuroimaging Strategies Addressing Challenges in Using fMRI for the Children with Cerebral Palsy  [PDF]
Juniper J. Lee-Park, Harshawardhan Deshpande, Jonathan Lisinski, Stephen LaConte, Sharon Ramey, Stephanie DeLuca
Journal of Behavioral and Brain Science (JBBS) , 2018, DOI: 10.4236/jbbs.2018.85019
Abstract: Aim: This study sought to develop a process and methodology that could be a useful clinical and research tool for successfully completing functional magnetic resonance imaging (fMRI) scanning in children with Cerebral Palsy. Method: Six children with CP (mean age of 8.83 years; five with spastic hemiplegia, one with spastic quadriplegia) and three children with typical development (mean age of 9.33 years) completed an fMRI scanning protocol that used real-time motion feedback as a means of minimizing head and trunk motion. Anatomical, resting-state, and motor-task scans were sequentially obtained from each subject. Precentral “hand-knob” regions were identified on the anatomical scan and served as seed regions to reveal the functional connectivity of each subject’s brain as associated with hand movement. Results: Real-time motion feedback aided children in successful completion of resting state scans. Functional connectivity and brain activity mapping were obtained based on anatomical landmarks, and laterality indices were developed based on the obtained functional-connectivity map to specify a dominant side of brain activity that was matched to a clinical profile, despite anatomical variations that occur with Cerebral Palsy. Interpretation: Real-time motion feedback and the development of laterality indices can improve the clinical and research utility of fMRI scanning. What this paper adds: 1) Presents a real-time imaging protocol for fMRI to help children complete scanning; 2) Presents an fMRI methodology to obtain laterality indices in the presence of abnormal anatomy; 3) Provides findings of LI that match clinical diagnosis.
Colour schemes and fa ade work at Drottningholm and Stockholm palaces Les couleurs des fa ades des palais royaux de Drottningholm et de Stockholm
Jan Lisinski
Bulletin du Centre de recherche du chateau de Versailles , 2008, DOI: 10.4000/crcv.1763
Abstract: Jan Lisinski présente les couleurs des fa ades des palais royaux de Drottningholm et de Stockholm. Les deux palais furent construits au xviie siècle mais firent l’objet de modifications par la suite. La présentation commence par un bref rappel historique centré sur les différentes couleurs utilisées pour les fa ades puis aborde la fa on dont doivent être traitées les fa ades aujourd’hui. Il sera question en particulier du traitement des pierres, des platres, des ma onneries, des aciers et des cuivres... Les fa ades des deux palais sont actuellement en restauration mais les solutions mises en uvre sont différentes. Au palais Royal de Stockholm, le platre est simplement nettoyé alors qu’au palais Drottningholm on refait les platres puis les peintures à la chaux. Jan Lisinski presents the colours of the fa ades of the royal palaces of Drottningholm and of Stockholm. The two palaces were constructed in the seventeenth century, but have undergone successive modifications. The presentation begins with a brief historical overview of the different colours used for the fa ades, then discusses the way the treatments are to be carried out. In particular, the treatment of stone, plaster, masonry, steel and copper will be examined. The fa ades of the two palaces are currently being restored, but the solutions for each are quite different. For the Royal Palace of Stockholm, the plaster is simply being cleaned, while at Drottningholm Palace, the plaster will be redone, then painted with lime paint.
Sol-Gel Derived Ferroelectric Nanoparticles Investigated by Piezoresponse Force Microscopy
F. Johann,T. Jungk,S. Lisinski,á. Hoffmann,L. Ratke,E. Soergel
Physics , 2010, DOI: 10.1063/1.3264052
Abstract: Piezoresponse force microscopy (PFM) was used to investigate the ferroelectric properties of sol-gel derived LiNbO$_3$ nanoparticles. To determine the degree of ferroelectricity we took large-area images and performed statistical image-analysis. The ferroelectric behavior of single nanoparticles was verified by poling experiments using the PFM tip. Finally we carried out simultaneous measurements of the in-plane and the out-of-plane piezoresponse of the nanoparticles, followed by measurements of the same area after rotation of the sample by 90$^{\circ}$ and 180$^{\circ}$. Such measurements basically allow to determine the direction of polarization of every single particle.
Under the Flag of Blue and White: Mary as an A-NationalSymbol in the Greek-Orthodox Community in Israel  [PDF]
Jonathan Ventura
Sociology Mind (SM) , 2011, DOI: 10.4236/sm.2011.14029
Abstract: Marian devotion and rituals have been the apex of Christian believers’ journey for centuries. In spite of its importance in many disciplines, Marian devotion and rituals in Israel have been neglected. In this article I will outline several social and religious aspects of Marian devotion in the Greek-Orthodox community in Israel. Using several case-studies of Marian devotion around the world I will address the question is Mary a national symbol in Israel? Since one of the most important Marian devotion sites is located in Israel and centered in Mary’s place of ascension in Gethsemane, addressing this site directly is crucial. I will express a new concept more fitting to the Israeli case—Mary as an a-national symbol. This research is based upon a combination of two main methodologies: participant observations and in-depth interviews with believers (local Greek and Palestinian residents as well as pilgrims) and clergymen. The research focuses on a procession taking place in the Old City of Jerusalem in the end of August, celebrating Mary’s legacy and resurrection.
On the Robustness of Strategic Experimentation to Persuasive Cheap Talk  [PDF]
Jonathan Rosborough
Theoretical Economics Letters (TEL) , 2012, DOI: 10.4236/tel.2012.25097
Abstract: This paper develops a model in which a privately informed seller attempts to indirectly influence the experimentation strategy of a buyer by sending costless signals. The question under consideration is whether there is any credible way in which this single rational seller could influence the buyer’s decisions. We provide bounds on information transmission in equilibrium, and show that there exists no reporting strategy for the seller which changes the experimentation strategy of the buyer. These results demonstrate the robustness of a class of learning models to coercion.
Investor Na?veté and Asset Prices  [PDF]
Jonathan Cook
Journal of Mathematical Finance (JMF) , 2013, DOI: 10.4236/jmf.2013.34047
Abstract:

This paper describes strategic behavior in a nonequilibrium model of asset pricing with heterogeneous sophistication. Both risk and return are increasing in the na?veté of investors in the market. Optimal investment involves in considering the effect that na?e investors have on the market. Further, we derive a simple characterization of the asset price dynamics that results from an arbitrary combination of a countably infinite set of investor types.

Surgery for Acute Stanford Type A Aortic Dissection in an Inner City Community Hospital: Single Surgeon’s Experience  [PDF]
Jonathan Nwiloh
World Journal of Cardiovascular Surgery (WJCS) , 2016, DOI: 10.4236/wjcs.2016.62005
Abstract: Objective: An inverse relationship between volume and mortality in some cardiothoracic surgical procedures has been previously established, leading to suggestions that acute aortic dissection should not be operated in community or low volume heart centers. We therefore reviewed our experience to compare with published data. Methods: Retrospective review of 27 patients who underwent proximal aortic surgery by a single surgeon at an inner city community hospital between May 2004 and April 2015. 16 patients, mean age 51.7 ± 13.6 years old, 75.0% males underwent emergency surgery for acute Stanford type A aortic dissection, while 9 with root or ascending aortic aneurysm, mean age 50.3 ± 15.0 years old, 88.9% males had elective proximal aortic surgery. 2 patients with arch aneurysm were excluded. Results: Four (25.0%) patients with acute dissection were in Penn class A, 3 (18.7%) Penn B, 3 (18.7%) Penn C and 6 (37.5%) Penn B+C. 10 (62.5%) patients underwent emergency root replacement with 60.0% (6/10) mortality all related to malperfusion including 2 patients with bloody stools, while 6 (37.5%) underwent supracoronary graft replacement with 16.6% (1/6) mortality from cardiac tamponade. The 5-year survival was 89.0%. In patients with aortic aneurysm, 8 (88.9%) underwent elective root replacement and 1 (11.1%) supracoronary graft replacement with zero mortality. Conclusion: Supracoronary graft replacement is performed for the majority of uncomplicated acute type A dissections and can be undertaken by the average general cardiac surgeon with acceptable results. Visceral malperfusion especially when associated with bloody stools portends a poor prognosis, and aortic dissection should be excluded in any Marfan patient presenting with acute abdomen. Delaying intervention in attempting transfer to a tertiary hospital can potentially increase preoperative mortality, known to rise with each passing hour from onset of acute dissection. Patients presenting therefore to community hospitals should probably undergo surgery there to avoid complications associated with delay.
Further Properties of Reproducing Graphs  [PDF]
Jonathan Jordan, Richard Southwell
Applied Mathematics (AM) , 2010, DOI: 10.4236/am.2010.15045
Abstract: Many real world networks grow because their elements get replicated. Previously Southwell and Cannings introduced a class of models within which networks change because the vertices within them reproduce. This happens deterministically so each vertex simultaneously produces an offspring every update. These offspring could represent individuals, companies, proteins or websites. The connections given to these offspring depend upon their parent’s connectivity much as a child is likely to interact with their parent’s friends or a new website may copy the links of pre-existing one. In this paper we further investigate one particular model, ‘model 3’, where offspring connect to their parent and parent’s neighbours. This model has some particularly interesting features, including a degree distribution with an interesting fractal-like form, and was introduced independently under the name Iterated Local Transitivity by Bonato et al. In particular we show connections between this degree distribution and the theory of integer partitions and show that this can be used to explain some of the features of the degree distribution; we give exact formulae for the number of complete subgraphs and the global clustering coefficient and we show how to calculate the minimal cycle basis.
Assessing outcomes after fast track surgical management of corpus cancer  [PDF]
Jonathan Carter, Shannon Philp
Open Journal of Obstetrics and Gynecology (OJOG) , 2011, DOI: 10.4236/ojog.2011.13026
Abstract: Objective: The aim of the study was to audit the outcomes of patients with corpus cancer managed with a fast track surgery (FTS) program. Design: Clinical audit of outcomes after laparotomy for corpus cancer and managed by FTS principles. Setting: Tertiary hospital, University based subspecialty gynaecological oncology practice. Population or Sample: Consecutive patients with uterine corpus cancer. There were no exclusions. Methods: Three year audit of FTS Database. Main Outcome Measures: Ability to tolerate early oral feeding (EOF), length of stay (LOS), perioperative complication rate and readmission rate. Results: Sixty six patients were operated upon whose median age was 59.5 years. Forty six (70%) had stage I disease, 7 (11%) stage II, 9 (14%) stage III and 4 (6%) had stage IV disease. Twenty seven (41%) had lymph node sampling performed. Median operating time was 2.5 hours. Mean BMI was 30 kg/m2 (Range: 18 - 47). Fifty patients (76%) were classified as over-weight or obese. Twenty four patients (36%) had a “non-zero” performance status. Mean intraoperative EBL was 227 ml. Median LOS was 3.0 days. There were 3 (5%) intraoperative complications. There were no intraoperative ureteric, bowel or vascular injuries. Postoperatively, 13 (20%) patients experienced a total of 24 adverse events. Only 2 (3%) patients experienced complications greater than grade 2. Conclusion: This audit shows that in an unselected group of patients undergoing laparotomy as management for their uterine malignancy and managed by a FTS protocol, overall excellent results can be achieved.
Using Nursery Rhymes to Foster Phonological and Musical Processing Skills in Kindergarteners  [PDF]
Jonathan Bolduc, Pascal Lefebvre
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.34075
Abstract: The aim of this study was to assess the efficiency of four learning conditions to develop phonological and musical processing skills through a set of 10 nursery rhymes. According to the analysis of the teachers’ practices, eight kindergarten classes (n = 100 kindergarteners) were paired and assigned to one of the following conditions: 1) music, 2) language, 3) combined [music and language], and 4) passive listening (control classes). Participants in conditions 1, 2, and 3 were met for 40 minutes per week over a ten-week period. In condition 1, the nursery rhymes were supplemented by musical activities and in condition 2 by language activities. Condition 3 was a combination of activities from conditions 1 and 2. In condition 4, children listened to a recording of the same nursery rhymes for 15 minutes daily during free exploration periods. No intervention was proposed for this control condition. All participants were evaluated using the same phonological and musical processing measures prior to and after the implementation of the program. Results indicated that children in conditions 1, 2 and 3 significantly improved their phonological awareness and their invented spelling skills at post-test. However, only the two conditions in which the music component was integrated enhanced significantly their results at the verbal memory task. Children in conditions 1, 3 and 4 enhanced tonal and rhythm perception skills. This study demonstrated that supplementing nursery rhymes with language activities is an efficient manner to develop emergent literacy skills, but the addition of musical activities could also boost phonological processing skills.
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