Learning System on Surgical Technique of Laparoscopic Cholecystectomy

2016 ◽  
Author(s):  
Hisanori Shiomi ◽  
Kazuaki Yamashiro ◽  
Yuka Takai ◽  
Akihiko Goto ◽  
Hiroyuki Hamada
Keyword(s):  
Laparoscopic Cholecystectomy ◽  
Surgical Technique ◽  
Numerical Method ◽  
Eye Movement ◽  
Working Hours ◽  
Learning System ◽  
Years Of Experience ◽  
Advanced Technique ◽  
The Subject ◽  
The Difference

In this research, eye movement measurement was performed for the process of the operation under laparoscopy to two or more persons. The knack of advanced technique was understood through numerical method and the difference in technology were evaluated, and it aimed at showing the influence of years of experience on eye movement by comparing the operation for the operators with different level of skill. The target operation was laparoscopic cholecystectomy. We decided to carry out under the same conditions using a simulator, and the subject was taken as two experts and one unskilled operator from which years of experience differ so that comparison between two or more subjects might be attained. According to the procedure in which it is most worked by the whole operation by actual laparoscopic cholecystectomy, it classified into nine items and measured the factor about working hours and a view at each process.

scholarly journals A comparative study of intra-peritoneal instillation of lignocaine versus placebo on operative site in laparoscopic cholecystectomy

2018 ◽  
Vol 5 (3) ◽  
pp. 997
Author(s):  
Mukund Mundra ◽  
Vinod Kumar
Keyword(s):  
Laparoscopic Cholecystectomy ◽  
Placebo Group ◽  
Rescue Analgesia ◽  
Operative Morbidity ◽  
Post Operative Pain ◽  
Significant Difference ◽  
Analgesia Requirement ◽  
The Subject ◽  
The Difference ◽  
Post Operative Nausea

Background: Visceral nociception is a significant source of the post-operative morbidity in Laparoscopic cholecystectomy and thus the idea of intraperitoneal local anaesthetic (IPLA) instillation was promulgated. The aim of the study was to evaluate the role of intra-peritoneal lignocaine instillation on post-operative morbidity in terms of post-operative pain and post-operative nausea and vomiting and also to establish if there is any difference exists between the timing of instillation of intra-peritoneal lignocaine (before and after completing the gall bladder dissection).Methods: Eighty patients randomized into two groups lignocaine group (lignocaine instilled in gallbladder bed) and placebo group (saline instilled in gallbladder bed). Lignocaine group further divided into subgroups i.e. pre-dissection lignocaine group (lignocaine instilled before gallbladder dissection) and post-dissection lignocaine group (lignocaine instilled after gallbladder dissection).Results: Post-operative pain was measured in terms of the VAS score. The score was less in lignocaine group. The difference was statistically significant (p<0.05) at 1, 2, 4, 6, 12 and 24hours between lignocaine group and placebo Group. No statistically significant difference between the mean of VAS scores of pre-dissections lignocaine and post-dissection lignocaine subgroups. In lignocaine group, 27.8%, 75%, 41% and 25% of the subject required rescue analgesia in 1st hr, next 1-8 hr, 8-16 hr and 16-24 hr respectively. In placebo group 33.3%, 97.2%, 83.3 % and 63.9% of the subject required rescue analgesia in 1st hr, next 1-8 hr, 8-16 hr and 16-24hr respectively. The difference was found to be statistically significant (p<0.05) except at 1st hour. Post operatively nausea perception, seemed to be slightly higher in placebo group as compared to lignocaine group but difference was statistically insignificant (p>0.05).Conclusions: Intraperitoneal lignocaine instillation is an effective method to alleviate post-operative pain in patients undergoing laparoscopic cholecystectomy, whether used as pre-emptive analgesia or instilled at the end of surgery. Intraperitoneal lignocaine instillation decreases post-operative analgesia requirement, especially after the 1st post-operative hour.

scholarly journals HEURISTICS AND NUMERICAL METHOD FOR NORMALIZING THE EMPIRICAL CONTEXT IN ONTOLOGICAL DATA ANALYSIS

2021 ◽  
pp. 61-69
Author(s):  
Валентина Андреевна Семенова
Keyword(s):  
Data Analysis ◽  
Numerical Method ◽  
Research Field ◽  
Heuristic Approach ◽  
Formal Concept ◽  
Binary Relations ◽  
Formal Ontologies ◽  
The Subject ◽  
The Difference ◽  
Empirical Context

Областью исследования является онтологический анализ данных, заключающийся в построении формальных онтологий на основе эмпирических данных о слабоструктурированных предметных областях. Предметом исследования является нормализация эмпирического V -контекста - нестрогого соответствия «объекты-свойства» - при ограничениях существования свойств. Задача исследования состоит в разработке численного метода, который реализует эвристический подход к нормализации эмпирических контекстов. В работе используются методы теории множеств и бинарных отношений, модели и методы анализа формальных понятий, а также существующая методология применения ограничений существования свойств для построения формальных онтологий. Отличие и новизна предложенного метода заключаются в более эффективной реализации эвристического подхода за счёт представления системы измеряемых свойств - множества фиксируемых у объектов исследуемой предметной области свойств с заданными на нём ограничениями существования - в виде совокупности субструктур, однородных по виду экзистенциального сопряжения свойств-членов. The research field is ontological data analysis, which consists in the construction of formal ontologies based on empirical data on semi-structured subject domains. The subject of the research is the normalization of the empirical V -context - a non-strict correspondence "objects-properties" - with properties existence constraints. The research objective is to develop a numerical method that implements a heuristic approach to the normalization of empirical contexts. The work uses the methods of the theory of sets and binary relations, models and methods of formal concept analysis, as well as the existing methodology for applying the properties existence constraints to construct formal ontologies. The difference and novelty of the proposed method consists in the more efficient implementation of the heuristic approach by representing the system of measured properties - the set of properties fixed in the objects of the studied subject domain with the existence constraints on it - as a set of substructures that are homogeneous in the form of existential relation of member properties.

Age Differences in Eye Movements During Reading: Degenerative Problems or Compensatory Strategy?

2019 ◽  
Vol 24 (4) ◽  
pp. 297-311
Author(s):  
José David Moreno ◽  
José A. León ◽  
Lorena A. M. Arnal ◽  
Juan Botella
Keyword(s):  
Eye Movements ◽  
Eye Movement ◽  
Meta Analysis ◽  
Age Groups ◽  
Behavioral Changes ◽  
Aging Effects ◽  
Movement Data ◽  
Sentence Reading ◽  
The Difference ◽  
Eye Movements During Reading

Abstract. We report the results of a meta-analysis of 22 experiments comparing the eye movement data obtained from young ( Mage = 21 years) and old ( Mage = 73 years) readers. The data included six eye movement measures (mean gaze duration, mean fixation duration, total sentence reading time, mean number of fixations, mean number of regressions, and mean length of progressive saccade eye movements). Estimates were obtained of the typified mean difference, d, between the age groups in all six measures. The results showed positive combined effect size estimates in favor of the young adult group (between 0.54 and 3.66 in all measures), although the difference for the mean number of fixations was not significant. Young adults make in a systematic way, shorter gazes, fewer regressions, and shorter saccadic movements during reading than older adults, and they also read faster. The meta-analysis results confirm statistically the most common patterns observed in previous research; therefore, eye movements seem to be a useful tool to measure behavioral changes due to the aging process. Moreover, these results do not allow us to discard either of the two main hypotheses assessed for explaining the observed aging effects, namely neural degenerative problems and the adoption of compensatory strategies.

An Adaptive and Learning System for Feedback-Controlled Evoked Response Studies

1981 ◽  
Vol 20 (03) ◽  
pp. 169-173
Author(s):  
J. Wagner ◽  
G. Pfurtscheixer
Keyword(s):  
Brain Activity ◽  
Evoked Response ◽  
Learning System ◽  
Time Interval ◽  
Electrical Brain Activity ◽  
Long Time ◽  
The Subject ◽  
Eeg Power ◽  
Stimulation System ◽  
Background Eeg

The shape, latency and amplitude of changes in electrical brain activity related to a stimulus (Evoked Potential) depend both on the stimulus parameters and on the background EEG at the time of stimulation. An adaptive, learnable stimulation system is introduced, whereby the subject is stimulated (e.g. with light), whenever the EEG power is subthreshold and minimal. Additionally, the system is conceived in such a way that a certain number of stimuli could be given within a particular time interval. Related to this time criterion, the threshold specific for each subject is calculated at the beginning of the experiment (preprocessing) and adapted to the EEG power during the processing mode because of long-time fluctuations and trends in the EEG. The process of adaptation is directed by a table which contains the necessary correction numbers for the threshold. Experiences of the stimulation system are reflected in an automatic correction of this table. Because the corrected and improved table is stored after each experiment and is used as the starting table for the next experiment, the system >learns<. The system introduced here can be used both for evoked response studies and for alpha-feedback experiments.

Learning Language Levels in Students Accurate with a History Academic Achievement History

2017 ◽  
Vol 1 (2) ◽  
pp. 137
Author(s):  
Noorlela Binti Noordin ◽  
Abdul Razaq Ahmad ◽  
Anuar Ahmad
Keyword(s):  
Academic Achievement ◽  
Statistical Inference ◽  
Quantitative Data ◽  
Quantitative Methods ◽  
Descriptive Statistics ◽  
Language Test ◽  
The Subject ◽  
The Difference ◽  
Learning Language ◽  
The Relationship

This study was aimed to evaluate the Malay proficiency among students in Form Two especially non-Malay students and its relationship to academic achievement History. To achieve the purpose of the study there are two objectives, the first is to look at the difference between mean of Malay Language test influences min of academic achievement of History subject among non-Malay students in Form Two and the second is the relationship between the level of Malay proficiency and their academic achievement for History. This study used quantitative methods, which involved 100 people of Form Two non-Malay students in one of the schools in Klang, Selangor. This study used quantitative data were analyzed using descriptive statistics and statistical inference with IBM SPSS Statistics v22 software. This study found that there was a relationship between the proficiency of Malay language among non-Malay students with achievements in the subject of History. The implications of this study are discussed in this article.

The Idea of a Meaningful Synthesis of Marxist and Non-Marxist Systems of Political Economy as a Mirror of Intellectual Turmoil (About V.T. Ryazanov’s Book «Modern Political Economy: Prospects of Neo-Marxist Synthesis»)

2019 ◽  
pp. 74-98
Author(s):  
A.B. Lyubinin
Keyword(s):  
Economic Theory ◽  
Political Economy ◽  
Economic Status ◽  
Economic Science ◽  
Objective Reality ◽  
Commodity Production ◽  
Subjective Assessments ◽  
The Subject ◽  
The Difference ◽  
Political Economic

Review of the monograph indicated in the subtitle V.T. Ryazanov. The reviewer is critical of the position of the author of the book, believing that it is possible and even necessary (to increase the effectiveness of General economic theory and bring it closer to practice) substantial (and not just formal-conventional) synthesis of the Marxist system of political economy with its non-Marxist systems. The article emphasizes the difference between the subject and the method of the classical, including Marxist, school of political economy with its characteristic objective perception of the subject from the neoclassical school with its reduction of objective reality to subjective assessments; this excludes their meaningful synthesis as part of a single «modern political economy». V.T. Ryazanov’s interpretation of commodity production in the economic system of «Capital» of K. Marx as a purely mental abstraction, in fact — a fiction, myth is also counter-argued. On the issue of identification of the discipline «national economy», the reviewer, unlike the author of the book, takes the position that it is a concrete economic science that does not have a political economic status.

Possible application of approximate models for calculation of selectivity of consecutive reactions under the effect of mass transfer

1982 ◽  
Vol 47 (5) ◽  
pp. 1301-1309 ◽  
Author(s):  
František Kaštánek ◽  
Marie Fialová
Keyword(s):  
Mass Transfer ◽  
Numerical Method ◽  
Analytical Method ◽  
Approximate Analytical Method ◽  
Approximate Models ◽  
Consecutive Reactions ◽  
The Difference

The possibility of use of approximate models for calculation of selectivity of consecutive reactions is critically analysed. Simple empirical criteria are proposed which enable safer application of approximate analytical reactions. A more universal modification has been formulated by use of which the difference of selectivity calculated by the exact numerical method and by the approximate analytical method is at maximum 12%.

Rhythm

2018 ◽  
Author(s):  
Lexi Eikelboom
Keyword(s):  
Social Sciences ◽  
Twentieth Century ◽  
Human Existence ◽  
Embodied Experience ◽  
Giorgio Agamben ◽  
The Social ◽  
Contemporary Philosopher ◽  
The Subject ◽  
The Difference ◽  
Theoretical Category

This book argues that, as a pervasive dimension of human existence with theological implications, rhythm ought to be considered a category of theological significance. Philosophers and theologians have drawn on rhythm—patterned movements of repetition and variation—to describe reality, however, the ways in which rhythm is used and understood differ based on a variety of metaphysical commitments with varying theological implications. This book brings those implications into the open, using resources from phenomenology, prosody, and the social sciences to analyse and evaluate uses of rhythm in metaphysical and theological accounts of reality. The analysis relies on a distinction from prosody between a synchronic approach to rhythm—observing the whole at once and considering how various dimensions of a rhythm hold together harmoniously—and a diachronic approach—focusing on the ways in which time unfolds as the subject experiences it. The text engages with the twentieth-century Jesuit theologian Erich Przywara alongside thinkers as diverse as Augustine and the contemporary philosopher Giorgio Agamben, and proposes an approach to rhythm that serves the concerns of theological conversation. It demonstrates the difference that including rhythm in theological conversation makes to how we think about questions such as “what is creation?” and “what is the nature of the God–creature relationship?” from the perspective of rhythm. As a theoretical category, capable of expressing metaphysical commitments, yet shaped by the cultural rhythms in which those expressing such commitments are embedded, rhythm is particularly significant for theology as a phenomenon through which culture and embodied experience influence doctrine.

Improved Intraoperative Communication after Utilization of Navigational Grids during Laparoscopic Cholecystectomies

2018 ◽  
Vol 84 (5) ◽  
pp. 727-731
Author(s):  
Tyler Goff ◽  
John D. Cull
Keyword(s):  
Laparoscopic Cholecystectomy ◽  
Years Of Experience ◽  
Question Survey

Efficient intraoperative communication (IC) between an attending and resident during surgery is highly valuable. Few tools, however, have been developed to improve IC. This study evaluates IC between residents and attendings after utilization of a navigational grid (NG) during laparoscopic cholecystectomies. Attendings and surgery residents completed a 10-question survey after performing a laparoscopic cholecystectomy. Surveys were collected for 12 weeks: six weeks before use of NGs and six weeks with use of NGs. The NGs were constructed to fit our 26”-surgical monitors and allowed the monitors to be divided into a 7 x 4 grid. Hunderd and fifteen surveys were collected: 50 from attendings (pre-NG: 31 vs NG: 19) and 65 from residents (42 vs 23). Before NGs, attendings were less likely than residents to perceive attending instructions to be clear (64.5 vs 93.0%, P = 0.0001) and less likely to believe IC left little room for confusion during the procedure (64.5 vs 90.5%, P = 0.007). After NGs, attendings believed intraoperative directional guidance was more concise and clear (64.5 vs 89.5%, P = 0.062); they also reported that NGs left little room for IC confusion during the procedure (64.5 vs 94.7%, P = 0.039). Surveys showed the grid's utility to be inversely correlated with years of experience. Residents (<two years) and attendings (<10 years) with less experience had the highest median in reported usefulness (7 out of 10). Our findings show that NGs can be a useful tool for improving IC, especially in residents and attendings with less experience.

scholarly journals A retrospective analysis and literature review of neoplastic appendiceal mucinous lesions

BMC Surgery ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Belén Matias-García ◽  
Fernando Mendoza-Moreno ◽  
Ana Blasco-Martínez ◽  
José Ignacio Busteros-Moraza ◽  
Manuel Diez-Alonso ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Abdominal Pain ◽  
Surgical Technique ◽  
Clinical Status ◽  
Chronic Abdominal Pain ◽  
Tumour Type ◽  
Appendiceal Neoplasm ◽  
Appendiceal Neoplasms ◽  
Statistical Program ◽  
The Subject

Abstract Background At present, the term mucocele is outdated, and mucinous appendiceal neoplasm is preferred. Mucinous appendiceal neoplasm is an uncommon pathology that occurs predominantly in middle-aged women. Its classification and management have been the subject of debate in recent decades. The aim of this study was to analyse the incidence, clinical management and survival of these tumours diagnosed in our centre in the last 10 years. Methods This was a retrospective observational study of patients with a diagnosis of appendiceal neoplasms between 2009 and 2018 in our centre. Variables such as sex, age, tumour type, clinical status, diagnosis, treatment and survival were collected. All data were analysed using the statistical program IBM SPSS Statistic® version 25. Results Twenty-nine patients with a diagnosis of appendiceal neoplasm were identified, and 24 corresponded to neoplastic appendiceal mucinous lesions (85.7%). The average age was 59.7 ± 17.6 years. Most patients were women (15 cases; 62.5%). Most of them presented with chronic abdominal pain (37.5%), and the diagnosis was performed by computed tomography (CT) (50%). The treatment was surgical in all cases. The surgical technique depended on the findings and histology of the tumour. Conclusion Mucinous appendiceal neoplasms are an uncommon entity, and their pathological classification and management have recently changed.

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