NOViSE: a virtual natural orifice transluminal endoscopic surgery simulator

Purpose: Natural Orifice Transluminal Endoscopic Surgery (NOTES) is a novel technique in minimally invasive surgery whereby a flexible endoscope is inserted via a natural orifice to gain access to the abdominal cavity, leaving no external scars. This innovative use of flexible endoscopy creates many new challenges and is associated with a steep learning curve for clinicians. Methods: We developed NOViSE - the first force-feedback enabled virtual reality simulator for NOTES training supporting a flexible endoscope. The haptic device is custom built and the behaviour of the virtual flexible endoscope is based on an established theoretical framework – the Cosserat Theory of Elastic Rods. Results: We present the application of NOViSE to the simulation of a hybrid trans-gastric cholecystectomy procedure. Preliminary results of face, content and construct validation have previously shown that NOViSE delivers the required level of realism for training of endoscopic manipulation skills specific to NOTES Conclusions: VR simulation of NOTES procedures can contribute to surgical training and improve the educational experience without putting patients at risk, raising ethical issues or requiring expensive animal or cadaver facilities. In the context of an experimental technique, NOViSE could potentially facilitate NOTES development and contribute to its wider use by keeping practitioners up to date with this novel surgical technique. NOViSE is a first prototype and the initial results indicate that it provides promising foundations for further development

MENINGKATKAN KEMAMPUAN MOTORIK KASAR ANAK MELALUI PEMBELAJARAN TARI KREASI BALI

Penelitian ini dilakukan berdasarkan permasalahan kemampuan motorik kasar anak kelompok B-1 PAUD Kasih Sayang Bunda yang belum optimal. Kemampuan motorik kasar anak berkembang dengan optimal melalui stimulasi diluar tingkat yang dicapai hanya melalui kematangan. Tujuan dari penelitian ini yaitu untuk mengetahui apakah pembelajaran tari kreasi Bali dapat meningkatkan kemampuan motorik kasar anak kelompok B-1 PAUD Kasih Sayang Bunda. Metode yang digunakan adalah Penelitian Tindakan Kelas (PTK). Partisipan penelitian ini adalah anak-anak kelompok B-1 PAUD Kasih Sayang Bunda berusia 5-6 tahun yang berjumlah 15 anak. Hasil penelitian menunjukan peningkatan di setiap siklus setelah diterapkannya pembelajaran tari kreasi Bali. Terlihat dari pra siklus tidak ada anak yang berada pada kategori Berkembang Sesuai Harapan (BSH), pada akhir siklus I mengalami sedikit peningkatan dan diakhir siklus II tidak ada anak yang berada pada kategori Belum Berkembang (BB). Sehingga dapat disimpulkan bahwa pembelajaran tari kreasi Bali dapat meningkatkan kemampuan motorik kasar anak di Kelompok B-1 PAUD Kasih Sayang Bunda. Hal ini terlihat dari anak dapat menggerakan lengan, kaki, leher dalam melakukan gerakan yang berpindah tempat, keseimbangan dan menggunkan alat, dari gerakan yang sederhana ke gerakan yang kompleks dengan iringan tari kreasi Bali. Dengan adanya hasil dari penelitian tersebut, maka pembelajaran tari kreasi Bali dapat direkomendasikan untuk guru dalam kegiatan pembelajaran di Taman Kanak-kanak.;---This research is made based on problem of children’s rough motor ability of group B-1 PAUD Kasih Sayang Bunda that is not optimal yet. The ability of children’s rough motor develops optimally through stimulation out of the achieved level is only through maturity. The aim of this research is to find the objective’s condition, application of Bali creation dance learning, and improvement of children’s rough motor ability of group B-1 PAUD Kasih Sayang Bunda. The method used is Classroom Action Research (CAR). The participant of this research is fifteen children aged 5-6 years of group B-1 PAUD Kasih Sayang Bunda. The result of this research shows improvement in every cycle after the application of Bali creation dance learning. It can be seen from pre-cycle that there is no children in category Developed as Expected (DAE), and there is some improvement at the end of cycle I and no children in category Undeveloped (U) at the end of cycle II. Therefore, it can be concluded that Bali creation dance learning able to improve children’s rough motor ability of group B-1 PAUD Kasih Sayang Bunda. This can be seen from children that are able to move their hands, feet, and necks in performing movement, balance, and using tools from simple movement to complex movement with Bali creation dance offbeat. With the result of this research, it can be recommended for teachers in learning activity in preschool

Oceanic heat advection to the Arctic in the last Millennium

EGU2011-8738 At present, the Arctic is responding faster to global warming than most other areas on earth, as indicated by rising air temperatures, melting glaciers and ice sheets and a decline of the sea ice cover. As part of the meridional overturning circulation which connects all ocean basins and influences global climate, northward flowing Atlantic Water is the major means of heat and salt advection towards the Arctic where it strongly affects the sea ice distribution. Records of its natural variability are critical for the understanding of feedback mechanisms and the future of the Arctic climate system, but continuous historical records reach back only ca. 150 years. To reconstruct the history of temperature variations in the Fram Strait Branch of the Atlantic Current we analyzed a marine sediment core from the western Svalbard margin. In multidecadal resolution the Atlantic Water temperature record derived from planktic foraminifer associations and Mg/Ca measurements shows variations corresponding to the well-known climatic periods of the last millennium (Medieval Climate Anomaly, Little Ice Age, Modern/Industrial Period). We find that prior to the beginning of atmospheric CO2 rise at ca. 1850 A.D. average summer temperatures in the uppermost Atlantic Water entering the Arctic Ocean were in the range of 3-4.5°C. Within the 20th century, however, temperatures rose by ca. 2°C and eventually reached the modern level of ca. 6°C. Such values are unprecedented in the 1000 years before and are presumably linked to the Arctic Amplification of global warming. Taking into account the ongoing rise of global temperatures, further warming of inflowing Atlantic Water is expected to have a profound influence on sea ice and air temperatures in the Arctic

Use of Fly Screens to Reduce Campylobacter spp. Introduction in Broiler Houses

Fly screens that prevented influx of flies in 20 broiler houses during the summer of 2006 in Denmark caused a decrease in Campylobacter spp.–positive flocks from 51.4% in control houses to 15.4% in case houses. A proportional reduction in the incidence of chicken-borne campylobacteriosis can be expected by comprehensive intervention against flies in broiler production houses

Modelling preparation and consumption of pork products

This poster describes the retail and consumer phase of the EFSA Salmonella in Pork Quantitative Microbiological Risk Assessment (QMRA), which was funded under an Article 36 grant to support the scientific opinion required by the EC from the European Food Safety Authority (EFSA) and andopted by the BIOHAZ panel

Three-dimensional theory for interaction between atomic ensembles and free-space light

Atomic ensembles have shown to be a promising candidate for implementations of quantum information processing by many recently-discovered schemes. All these schemes are based on the interaction between optical beams and atomic ensembles. For description of these interactions, one assumed either a cavity-QED model or a one-dimensional light propagation model, which is still inadequate for a full prediction and understanding of most of the current experimental efforts which are actually taken in the three-dimensional free space. Here, we propose a perturbative theory to describe the three-dimensional effects in interaction between atomic ensembles and free-space light with a level configuration important for several applications. The calculations reveal some significant effects which are not known before from the other approaches, such as the inherent mode-mismatching noise and the optimal mode-matching conditions. The three-dimensional theory confirms the collective enhancement of the signal-to-noise ratio which is believed to be one of the main advantage of the ensemble-based quantum information processing schemes, however, it also shows that this enhancement need to be understood in a more subtle way with an appropriate mode matching method.Comment: 16 pages, 9 figure