scholarly journals Hybrid handheld gamma-ultrasound prototype for radioguided surgery: initial results

2021 ◽  
Vol 7 (2) ◽  
pp. 140-142
Author(s):  
Ali Pashazadeh ◽  
Nana Fomanka Lauretta ◽  
Axel Boese ◽  
Michael Friebe
Keyword(s):  
Initial Result ◽  
Current Paper ◽  
Preoperative Imaging ◽  
Radioguided Surgery ◽  
Imaging Capability ◽  
Anatomical Imaging ◽  
Further Development ◽  
Initial Results ◽  
Ultrasound Scanner

Abstract We have witnessed impressive advances in preoperative imaging of cancer and the development of dualmodality scanners. However, there is a need for a scanner with functional and anatomical imaging capability suitable for surgical settings and radioguided surgery. The current paper introduces a handheld gamma-ultrasound scanner prototype and illustrates the initial result of testing its very first version. The result of the testing was promising and encouraging in continuing the further development of the prototype.

Ontology-based Approach for Klungkung Royal Family

2020 ◽  
Vol 8 (4) ◽  
pp. 497
Author(s):  
Putu Ryan Ganeswara ◽  
Cokorda Rai Adi Pramartha
Keyword(s):  
Positive Feedback ◽  
Family Relations ◽  
Initial Result ◽  
Search Method ◽  
Structured Data ◽  
Family Tree ◽  
Royal Family ◽  
Ontology Evaluation ◽  
The Family ◽  
Further Development

Kawitan genealogies form to strengthen family relations by staying in line with their ties. Today, there are many Balinese Hindu searches their heritance. This due to no explicit documentation about the family tree and the Balinese Hindu relies on people memories. To overcome this problem, we develop the ontology of the Family Tree Naritan Kawarya Narem Dalem Benculuk Tegeh Kori with Forward Chaining and Backward Chaining Search Method can overcome problems related to marriage lineage. By using the structured data in the form of an ontology, the computer agents and human will be able to find information related to their genealogy easily, so that there are no more people who are confused with their heritance. The ontology evaluation was conducted on the Nararya Dalem Benculuk Tegeh Kori's family tree. The initial result gave positive feedback toward further development of this ontology. Keywords : Ontology, Family Tree, Methontology

Gamifying Everyday Activities using Mobile Sensing

2013 ◽  
pp. 98-114 ◽  
Author(s):  
Zachary Fitz-Walter ◽  
Dian Tjondronegoro ◽  
Peta Wyeth
Keyword(s):  
University Students ◽  
Mobile Technology ◽  
Game Design ◽  
Mobile Sensing ◽  
Physical Activities ◽  
Design Elements ◽  
Surrounding Environment ◽  
Game Elements ◽  
Further Development ◽  
Initial Results

The addition of game design elements to non-game contexts has become known as gamification. Previous research has suggested that framing tedious and non-motivating tasks as game-like can make them enjoyable and motivating (e.g., de Oliveira, et al., 2010; Fujiki, et al., 2007; Chiu, et al., 2009). Smartphone applications lend themselves to being gamified as the underlying mobile technology has the ability to sense user activities and their surrounding environment. These sensed activities can be used to implement and enforce game-like rules based around many physical activities (e.g., exercise, travel, or eating). If researchers wish to investigate this area, they first need an existing gamified application to study. However if an appropriate application does not exist then the researcher may need to create their own gamified prototype to study. Unfortunately, there is little previous research that details or explains the design and integration of game elements to non-game mobile applications. This chapter explores this gap and shares a framework that was used to add videogame-like achievements to an orientation mobile application developed for new university students. The framework proved useful and initial results are discussed from two studies. However, further development of the framework is needed, including further consideration of what makes an effective gamified experience.

scholarly journals Initial result of uniportal non-intubated thoracoscopic surgery to manage the thoracic diseases at Vietduc University Hospital

2019 ◽  
Vol 9 (4) ◽  
Author(s):  
Lu Pham Huu ◽  
Keyword(s):  
Thoracoscopic Surgery ◽  
Wedge Resection ◽  
Tumor Resection ◽  
Surgical Techniques ◽  
Initial Result ◽  
University Hospital ◽  
Drainage Time ◽  
Thoracic Diseases ◽  
Average Operative Time ◽  
Initial Results

Abstract Introduction: The study aimed to evaluate the initial results of uniportal non-intubated thoracoscopic surgery for treatment of thoracic diseases at the VietDuc University Hospital. Material and Methods:A descriptive study of 17 patients with intrathoracic diseases were treated with uniportal non-intubated thoracoscopic surgery from 02/2019 to 07/2019. The data of pre-peri and post – operative were recorded. Results: There were 04 men and 13 women, mean age was 49,2 ± 20,5 (06 – 71). The average BMI: 21,48 ± 2,14 kg/ m2(15,39 – 23,93). Surgical techniques: GGO (Wedge resection): 03 (17,6%); Bullous lung disease (Wedge resection): 01 (5,9%); Mediastinal tumor (resection): 08 (47,1%); NSLC (lobectomy + dissection node): 05 (29,4%). The average operative time: 108,6 ± 28,17 minutes (60 – 160). The average drainage time was 3,7 ± 1,18 days (2 – 8). The average hospitalization time was 4,9 ± 1,76 days (3 – 12). No mortality and major complications after operation was recorded. Conclusion: Treatment of thoracic diseases with uniportal non-intubated thoracoscopic surgery is a safe, feasible, and well-tolerated .

99mTc-MIBI Radioguided Surgery for Limited Invasive Parathyroidectomy

2000 ◽  
Vol 86 (4) ◽  
pp. 370-371 ◽  
Author(s):  
Dario Casara ◽  
Domenico Rubello ◽  
Andrea Piotto ◽  
Elena Carretto ◽  
Maria Rosa Pelizzo
Keyword(s):  
Parathyroid Carcinoma ◽  
Gamma Probe ◽  
Preoperative Imaging ◽  
Radioguided Surgery ◽  
Parathyroid Surgery ◽  
Imaging Protocol ◽  
Invasive Parathyroidectomy ◽  
Wide Variability ◽  
99Mtc Mibi ◽  
Ratio Range

We report the preliminary results obtained with the intraoperative MIBI-guided gamma probe in a group of 9 patients with primary hyperparathyroidism (pHPT). These patients were selected for limited invasive parathyroid surgery on the basis of a preoperative imaging protocol consisting of a pertechnetate & perchlorate/MIBI scan combined with neck ultrasonography (US). In the operating room 50–70 MBq MIBI was injected 30 to 45 min before parathyroidectomy. The radioactivity was measured intraoperatively at three sites: parathyroid (P), thyroid (T), and background (B). The P/B, P/T, and T/B ratios were calculated. The T/B ratio was relatively constant (range, 1.5–1.8; mean, 1.6), while a wide variability was observed both for P/T ratio (range, 1.2–2.3; mean, 1.7) and P/B ratio (range, 2.1–4.0; mean, 2.9). At surgery single enlarged parathyroid glands were easily identified by means of intraoperative MIBI-guided gamma probe. Moreover, the gamma probe allowed us to perform a limited 2–2.5 cm neck incision in eight patients affected by parathyroid adenoma. In the remaining patient a parathyroid carcinoma was diagnosed and a bilateral neck exploration was performed. The intraoperative MIBI gamma probe seems to be a useful aid when limited invasive parathyroid surgery is performed.

Further Development of an Advanced Low-NOx Combustion System and its Potential Application to Coal-Fired Utility Boilers

1980 ◽  
Vol 102 (3) ◽  
pp. 684-691 ◽  
Author(s):  
T. M. Sommer ◽  
S. A. Johnson ◽  
G. D. Lindstrom
Keyword(s):  
Kinetic Mechanism ◽  
Design Parameters ◽  
Small Scale ◽  
Prototype System ◽  
Combustion System ◽  
Design Considerations ◽  
Utility Boilers ◽  
Low Nox Combustion ◽  
Further Development ◽  
Initial Results

The Babcock & Wilcox Company (B&W), under contract with the Electric Power Research Institute (EPRI), has designed and tested an advanced staged combustion system on a four million Btu/hr (4.2-million kJ/hr) scale. Results of these tests showed the potential to limit the emission of nitrogen oxides from coal-fired boilers to 100–150 ppm and identified a new kinetic mechanism for NO destruction. Subsequently, the correlations and initial design parameters derived from the small-scale tests were applied to a conceptual commercial system to ensure that this concept was indeed commercially feasible. These design considerations and the favored preliminary arrangement of a low-NOx combustion system will be discussed herein. Before commercializing this concept, however, further research is necessary. Testing on a nominal 50-million Btu/hr (53-million kJ/hr) prototype system is now in progress. Initial results indicate that NOx emission correlations and design parameters will need only slight revisions before the concept is ready for a field demonstration.

scholarly journals Potential Imaging Capability of Optical Coherence Tomography as Dental Optical Probe: A Mini-Review

2021 ◽  
Vol 11 (22) ◽  
pp. 11025
Author(s):  
Ramadhan Hardani Putra ◽  
Nobuhiro Yoda ◽  
Eha Renwi Astuti ◽  
Keiichi Sasaki
Keyword(s):  
Optical Coherence Tomography ◽  
Soft Tissues ◽  
Optical Probe ◽  
Periodontal Pocket ◽  
Optical Coherence ◽  
Imaging Capability ◽  
Online Searches ◽  
Imaging Performance ◽  
Clinical Experiments ◽  
Further Development

Optical coherence tomography (OCT) has been emerging in the dental field as an alternative diagnostic imaging for “optical probes” owing to its micro-meter resolution and non-invasiveness. This review aims to answer the following question: what is the imaging capability of OCT to visualize the subgingival area? Online searches were performed on PubMed and SPIE digital library databases, followed by a manual screening of references listed in relevant studies. The feasibility and imaging performance of OCT to visualize the subgingival area, including the periodontal, peri-implant, and crown margins, are discussed. All of the literature reviewed in this study demonstrated that OCT has the ability to visualize periodontal, including hard and soft tissues, and peri-implant conditions with high resolution. Gingival sulcus depth, periodontal pocket, and calculus deposition can also be depicted. However, clinical evidence that support the imaging capability of OCT as a dental optical probe to visualize subgingival area is lacking. Limited availability, portability, and usability of OCT for clinical experiments in dentistry, particularly for the subgingival area, might be contributed to its limitations. Hence, further development of handheld OCT systems and controlled clinical trials are needed to confirm the imaging capability of OCT reported in this review.

Application of TEM to Deformation, Wear, and Fracture of Ceramics

1974 ◽  
Vol 32 ◽  
pp. 472-473
Author(s):  
B. J. Hockey
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Mechanical Behavior ◽  
Brittle Materials ◽  
High Temperature Strength ◽  
Wide Range ◽  
Corrosive Environments ◽  
Further Development

Ceramics, such as Al2O3 and SiC have numerous current and potential uses in applications where high temperature strength, hardness, and wear resistance are required often in corrosive environments. These materials are, however, highly anisotropic and brittle, so that their mechanical behavior is often unpredictable. The further development of these materials will require a better understanding of the basic mechanisms controlling deformation, wear, and fracture.The purpose of this talk is to describe applications of TEM to the study of the deformation, wear, and fracture of Al2O3. Similar studies are currently being conducted on SiC and the techniques involved should be applicable to a wide range of hard, brittle materials.

Electron Probe Analysis of Vertebrate Smooth Muscle: Distribution of Ca and Ci

1976 ◽  
Vol 34 ◽  
pp. 334-335 ◽  
Author(s):  
Avril V. Somlyo ◽  
H. Shuman ◽  
A.P. Somlyo
Keyword(s):  
Smooth Muscle ◽  
Electron Probe ◽  
Preliminary Report ◽  
Cell Damage ◽  
Electron Probe Analysis ◽  
Perinuclear Space ◽  
Probe Analysis ◽  
High K ◽  
Low K ◽  
Initial Results

This is a preliminary report of electron probe analysis of rabbit portal-anterior mesenteric vein (PAMV) smooth muscle cryosectioned without fixation or cryoprotection. The instrumentation and method of electron probe quantitation used (1) and our initial results with cardiac (2) and skeletal (3) muscle have been presented elsewhere.In preparations depolarized with high K (K2SO4) solution, significant calcium peaks were detected over the sarcoplasmic reticulum (Fig 1 and 2) and the continuous perinuclear space. In some of the fibers there were also significant (up to 200 mM/kg dry wt) calcium peaks over the mitochondria. However, in smooth muscle that was not depolarized, high mitochondrial Ca was found in fibers that also contained elevated Na and low K (Fig 3). Therefore, the possibility that these Ca-loaded mitochondria are indicative of cell damage remains to be ruled out.

The stability of dislocation networks under various oxygen-doping conditions in superconducting Bi2Sr2CaCu2Oy single crystals and their influence on the flux pinning properties

1994 ◽  
Vol 52 ◽  
pp. 802-803
Author(s):  
Y. Feng ◽  
X. Y. Cai ◽  
R. J. Kelley ◽  
D. C. Larbalestier
Keyword(s):  
Single Crystals ◽  
Oxygen Content ◽  
Basal Plane ◽  
Flux Pinning ◽  
Pinning Centers ◽  
Before And After ◽  
Anomalous Peak ◽  
Basal Plane Dislocation ◽  
The Stability ◽  
Further Development

The issue of strong flux pinning is crucial to the further development of high critical current density Bi-Sr-Ca-Cu-O (BSCCO) superconductors in conductor-like applications, yet the pinning mechanisms are still much debated. Anomalous peaks in the M-H (magnetization vs. magnetic field) loops are commonly observed in Bi2Sr2CaCu2Oy (Bi-2212) single crystals. Oxygen vacancies may be effective flux pinning centers in BSCCO, as has been found in YBCO. However, it has also been proposed that basal-plane dislocation networks also act as effective pinning centers. Yang et al. proposed that the characteristic scale of the basal-plane dislocation networksmay strongly depend on oxygen content and the anomalous peak in the M-H loop at ˜20-30K may be due tothe flux pinning of decoupled two-dimensional pancake vortices by the dislocation networks. In light of this, we have performed an insitu observation on the dislocation networks precisely at the same region before and after annealing in air, vacuumand oxygen, in order to verify whether the dislocation networks change with varying oxygen content Inall cases, we have not found any noticeable changes in dislocation structure, regardless of the drastic changes in Tc and the anomalous magnetization. Therefore, it does not appear that the anomalous peak in the M-H loops is controlled by the basal-plane dislocation networks.

Zero Marking of Past Tense in Child African American English

2014 ◽  
Vol 21 (4) ◽  
pp. 173-181 ◽  
Author(s):  
Ryan Lee ◽  
Janna B. Oetting
Keyword(s):  
African American ◽  
American English ◽  
African American English ◽  
Current Paper ◽  
Past Tense ◽  
Typically Developing ◽  
Grammatical Function

Zero marking of the simple past is often listed as a common feature of child African American English (AAE). In the current paper, we review the literature and present new data to help clinicians better understand zero marking of the simple past in child AAE. Specifically, we provide information to support the following statements: (a) By six years of age, the simple past is infrequently zero marked by typically developing AAE-speaking children; (b) There are important differences between the simple past and participle morphemes that affect AAE-speaking children's marking options; and (c) In addition to a verb's grammatical function, its phonetic properties help determine whether an AAE-speaking child will produce a zero marked form.

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