Investigating a Super-Bear

2019 ◽  
Vol 24 (7) ◽  
pp. 406-412
Author(s):  
Clayton M. Edwards ◽  
Rebecca R. Robichaux-Davis ◽  
Brian E. Townsend
Keyword(s):  
Classroom Discourse ◽  
Positive Results

Three inquiry-based tasks highlight the planning, classroom discourse, positive results, and growth in one class's journey.

Dynamic Scintigraphy of the Oesophagus in the Evaluation of Reflux Oesophagitis

1990 ◽  
Vol 29 (05) ◽  
pp. 204-209
Author(s):  
B. Ugarković ◽  
D. Ivančević ◽  
D. Babić ◽  
Ž. Babić
Keyword(s):  
Reflux Oesophagitis ◽  
Oesophageal Reflux ◽  
Low Grade ◽  
Time Activity ◽  
The Difference ◽  
Asymptomatic Subjects ◽  
Oesophageal Transit ◽  
Dynamic Scintigraphy ◽  
Positive Results ◽  
Reflux Œsophagitis

A method is presented which combines gastro-oesophageal reflux quantification and oesophageal transit measurement so as to differentiate true reflux from residual oesophageal activity. A group of 33 subjects with gastro-oesophageal reflux symptoms and endoscopically confirmed reflux oesophagitis and a group of 21 asymptomatic subjects with normal oesophageal, gastric and duodenal endoscopic findings were examined. The subjects were given 37 MBq 99mTc-Sn-colloid in saline orally and then scintiscanned dynamically. The gastro-oesophageal quantification was done after transit measurement and after the oesophageal time activity (to detect residual oesophageal activity) reached its minimum. The difference in the reflux indices between the two groups was highly significant. In low-grade oesophagitis measured reflux was lower than in higher grades of disease. Only 4.7% false-positive results were observed with a specificity of 95%, indicating that this method may be superior to methods published earlier.

Critical Evaluation of Impedance Phlebography for the Diagnosis of Deep Vein Thrombosis

1974 ◽  
Vol 31 (02) ◽  
pp. 273-278
Author(s):  
Kenneth K Wu ◽  
John C Hoak ◽  
Robert W Barnes ◽  
Stuart L Frankel
Keyword(s):  
Deep Vein Thrombosis ◽  
False Positive ◽  
False Negative ◽  
Critical Evaluation ◽  
Original Method ◽  
Vein Thrombosis ◽  
Negative Results ◽  
False Negative Results ◽  
Deep Vein ◽  
Positive Results

SummaryIn order to evaluate its daily variability and reliability, impedance phlebography was performed daily or on alternate days on 61 patients with deep vein thrombosis, of whom 47 also had 125I-fibrinogen uptake tests and 22 had radiographic venography. The results showed that impedance phlebography was highly variable and poorly reliable. False positive results were noted in 8 limbs (18%) and false negative results in 3 limbs (7%). Despite its being simple, rapid and noninvasive, its clinical usefulness is doubtful when performed according to the original method.

Diagnosis of helicobacter pylori infection: problems and prospects

2020 ◽  
pp. 54-59
Author(s):  
A. S. Molostova ◽  
N. S. Gladyshev ◽  
A. V. Svarval ◽  
R. S. Ferman ◽  
A. B. Karasyova ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Urease Activity ◽  
Diagnostic Methods ◽  
Study Group ◽  
Biochemical Method ◽  
Antimicrobial Drugs ◽  
Non Invasive ◽  
Number Of Patients ◽  
Pcr Method ◽  
Positive Results

(HP) infection was performed using invasive and non-invasive methods. The study group consisted of 95 patients with dyspepsia. HP infection was detected in 47 patients (49.4 %). The expediency of using a set of diagnostic methods for detecting HP (PCR, immunochromatographic, bacteriological and method for determining urease activity) is proved. Most often (100 %) in patients HP infection was detected in biopsies using the PCR method. Somewhat less frequently it was detected when examining biopsies with an invasive biochemical method (AMA RUT Reader) (82 %) and fecal immunochromatographic method (83 %). Despite the fact that helicobacteriosis was detected bacteriologically in a small number of patients (24 %), this method is of particular value, since it allows you to assess the sensitivity to antimicrobial drugs and probiotics, and does not give false positive results.

Polycaprolactone based membranes for the degradation of diclofenac present in water samples using ZnO nanoparticles as the active agent

MRS Advances ◽  
2020 ◽  
Vol 5 (61) ◽  
pp. 3153-3161
Author(s):  
Marco Antonio Juárez Sánchez ◽  
Miguel Ángel Meléndez Lira ◽  
Celestino Odín Rodríguez Nava
Keyword(s):  
Zno Nanoparticles ◽  
Wastewater Treatment Plants ◽  
Active Agent ◽  
Heterogeneous Photocatalysis ◽  
Nano Particles ◽  
Electrical Characteristics ◽  
Unit Operation ◽  
Fields Of Study ◽  
Drug Contamination ◽  
Positive Results

AbstractDrug contamination in water is one of the current fields of study. Since 1990, the presence of drugs in drinking water has been a concern to scientists and public. In Mexico, these organic compounds are not efficiently removed in wastewater treatment plants; therefore, alternative methodologies have been studied that allow these compounds to have a high percentage of degradation or be completely degraded. One example of these techniques is heterogeneous photocatalysis which has obtained positive results in the degradation of drugs using ZnO nanoparticles. These are commonly selected for their electrical characteristics, even though they disperse in water and an additional unit operation is required to separate them from the liquid medium. To eliminate drugs with nano particles in a single stage, polycaprolactone-based membranes with adhered ZnO nanoparticles, by means of electrospinning, were prepared to degrade drugs such as diclofenac. The technique used has shown to efficiently break down diclofenac in 4 hours according to the capillary electrophoresis readings.

Classroom Discourse Structure in MTs Negeri Rantauprapat

2016 ◽  
Vol 13 (1) ◽  
Author(s):  
Jupriaman Jupriaman ◽  
Sri Minda Murni
Keyword(s):  
Classroom Discourse ◽  
Tape Recorder ◽  
The Other ◽  
Discourse Structure ◽  
Video Tape ◽  
English Teacher ◽  
Video Tape Recorder ◽  
Field Note

The objectives of this study were to describe the classroom discourse structure, to describe how the classroom discourse is realized by teacher and students and the reasons for the realizations of the ways they are. The source of the data was English teacher and the students while the data are verbal and non verbal utterances of students and teachers. The instruments for collecting data were video tape recorder and researcher’s field note. The data were collected by observing and recording the utterances uttered by the teacher and students. The findings showed that the classroom discourse structures were dominantly realized by Initiation and Response (IR) structure. It was reflected in teacher direct, elicit and information exchanges was found that the classroom discourse structures. The other exchanges occur are boundary (framing and focusing move), directive, informing, check, accept, react, reply, nomination, marker, bid and conclusion acts. The reasons why the realization as the ways they are (1) teacher as a centre of interaction, (2) teacher gives some questions without any caring to the evaluation, appreciation and feedback without any feedback to make dialogue, (3) students have been disciplined not to speak in classes without a teacher’s direction, and most of them are unwilling to speak English.   Keywords: Classroom Discourse Structures, Initiation and Response, Sinclair and Coulthard Theory

PHASAL REALIZATIONS IN CLASSROOM DISCOURSE A Systemic-Functional Analysis

TABULARASA ◽  
2014 ◽  
Vol 11 (2) ◽  
Author(s):  
Lasyuli Simbolon
Keyword(s):  
Functional Analysis ◽  
Strong Evidence ◽  
Classroom Discourse ◽  
Social Values ◽  
Classroom Interactions ◽  
Classification Schemes ◽  
Complementary Method ◽  
Academic Knowledge ◽  
Primary Instrument

This article examines the phasal realizations characteristic of the classroom discourse. The data are collected by means of audio-visual recordings and transcriptions, and they are analyzed by employing a complementary method of analysis of Young’s model. The primary instrument of this study is the researcher herself, whereas the secondary instruments are (1) classification schemes of the semiotic aspect in focus, (2) data sheets that contain 4 classroom discourse-in-texts, and (3) notes on each classroom discourse-in-text. The findings reveal that the CD-in-text as a whole is typically realized and characterized by the following: (1) Substantiation (SU) as the most prominent macro-function and the Conclusion (CO) as the least prominent, (2) the Interchange (IC) as the most prominent micro-function and the Apology (AP) as the least prominent. Based on the main findings, there is strong evidence to suggest that the ‘semiotic behavior’ of the CD-in-text as a whole is motivated by the goal-oriented need, and the goal to achieve has tended to be more academic-oriented than social-oriented. In this, the teachers as the primary speakers of the classroom interactions have tended to focus on the transformation of intellectual values (academic knowledge/skills) with the least social values involved therein. The most prominently occurring SU macro-function and IC micro-function are clear indicators of this endeavor. The scope and the objectives of this study have been delimited to investigate CD phenomena at the levels of phase and sub-phase.

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