scholarly journals Epilepsy and electroencephalographic features: comparative study of Down syndrome and non-syndromic mental retardation

2012 ◽  
Vol 18 (1) ◽  
pp. 7-11
Author(s):  
Karyn Regina Jordão Koladicz ◽  
Paulo Breno Noronha Liberalesso ◽  
Bianca Simone Zeigelboim ◽  
Jair Mendes Marques ◽  
Ari Leon Jurkiewicz
Keyword(s):  
Down Syndrome ◽  
Mental Retardation ◽  
Descriptive Statistics ◽  
Electrode Placement ◽  
Epileptiform Discharges ◽  
Focal Pattern ◽  
The Difference ◽  
Student’S T ◽  
First Descriptions ◽  
Student’S T Test

INTRODUCTION: Down syndrome (DS) is the most common chromosomal abnormality causing mental retardation and its association with epilepsy is highly variable in childhood. Although the first descriptions of the syndrome did not report seizures, their association with epilepsy is relatively common. METHODS: were evaluated 68 individuals with DS and 83 with non-syndromic mental retardation (N-SMR). All patients underwent digital EEG, lasting at least 30 minutes and electrodes positioned according to the International 10-20 System of Electrode Placement. Data were analyzed using descriptive statistics and proportions were compared with Student's t-test and test of Differences between Proportions with p<0.05 considered statistically significant. RESULTS: DS: 27.9% had epilepsy (first seizure with 2.2±3.7 years). Fifteen (22.1%) patients had epileptiform discharges, 5 (7.4%) hypsarrhythmia, 5 (7.4%) focal pattern, 3 (4.4%) generalized pattern and 2 (2.9%) multifocal pattern. N-SMR: 33.7% patients had epilepsy (first seizure with 1.2±4.5 years). Twenty-three (27.7%) patients had epileptiform discharges, 10 (12.0%) focal pattern, 5 (6.0%) generalized pattern and 8 (9.6%) multifocal pattern. CONCLUSION: The difference between the occurrence of epilepsy in DS and N-SMR was not statistically significant, as well as between normal EEG, EEGs with focal pattern, generalized pattern and multifocal pattern. In SD group 7.4% have shown hypsarrhythmia.The comparison with N-SMR was not possible because none of these has shown this EEG abnormality.

scholarly journals Nurses' leadership styles in the icu: association with personal and professional profile and workload

2009 ◽  
Vol 17 (1) ◽  
pp. 28-33 ◽  
Author(s):  
Alexandre Pazetto Balsanelli ◽  
Isabel Cristina Kowal Olm Cunha ◽  
Iveth Yamaguchi Whitaker
Keyword(s):  
Leadership Styles ◽  
Leadership Style ◽  
T Test ◽  
Descriptive Statistics ◽  
Nursing Workload ◽  
Comparison Test ◽  
Multiple Comparison Test ◽  
Professional Profile ◽  
Student’S T ◽  
Student’S T Test

This study aims to explore the association between nurses' leadership styles and personal and professional nursing profile and workload. The sample consisted of seven nurses and seven nursing technicians who were grouped into pairs. At the end of three months, nurses were queried regarding what leadership style would be adopted when the nursing technician under their evaluation delivered care to patients admitted to the ICU. Relevant data was analyzed by applying descriptive statistics, Tukey's multiple comparison test and Student's t-test (p< 0.05). Nursing workload reached 80.1% on average. The personal and professional profile variables did not show any relation with the leadership styles chosen by nurses (p>0.05). The determine, persuade, and share leadership styles prevailed. However, whenever the nursing workload peaked, the determine and persuade styles were used (p<0.05).

scholarly journals Knowledge of the nursing team on pressure ulcer prevention

2017 ◽  
Vol 70 (2) ◽  
pp. 294-300 ◽  
Author(s):  
Nariani Souza Galvão ◽  
Maria Alice Barbosa Serique ◽  
Vera Lúcia Conceição de Gouveia Santos ◽  
Paula Cristina Nogueira
Keyword(s):  
Ethics Committee ◽  
Descriptive Statistics ◽  
Pressure Ulcer Prevention ◽  
Staff Members ◽  
Nursing Team ◽  
Classification Evaluation ◽  
Student’S T ◽  
The City ◽  
Validated Instrument ◽  
Student’S T Test

ABSTRACT Objective: describe and analyze the nursing team's knowledge about classification, evaluation and measures to prevent pressure ulcers (PU) in patients hospitalized in the ICU of a teaching hospital in the city of Manaus. Method: a descriptive and exploratory study was conducted after approval by a research ethics committee. Data were collected using a validated instrument. The study sample was made up of 40 nursing staff members, of whom 14 were nurses and 26 were nursing technicians/aides. Data were analyzed through descriptive statistics and Student's t-test, with value of p<0.05. Results: the overall mean of hits was 63.4% for technicians/aides and 51.4% for nurses, with statistically significant differences between the groups only for the PU prevention category (p<0.001). Conclusion: a deficit of knowledge on PU prevention was found among nurses and nursing technicians/aides, demanding the training of these professionals.

Correlates of Ageism Among Health Care Professionals Working With Older Adults

2018 ◽  
Vol 30 (3) ◽  
pp. 303-312 ◽  
Author(s):  
Ziyafet Uğurlu ◽  
Sultan Kav ◽  
Azize Karahan ◽  
Ebru Akgün Çıtak
Keyword(s):  
Older Adults ◽  
Health Care ◽  
Data Analysis ◽  
Health Care Professionals ◽  
Educational Status ◽  
Descriptive Study ◽  
Descriptive Statistics ◽  
The Mean ◽  
Student’S T ◽  
Student’S T Test

Introduction: The changing proportion of older adults in society necessitates the need to determine the attitudes of health care professionals toward older adults. The purpose of this study was to explore attitudes of ageism and its correlates among health care professionals working with older adults. Method: This descriptive study was conducted in seven hospitals in five cities in Turkey. A total of 628 health care professionals participated in this study. The Fraboni Scale of Ageism (FSA) was used to collect data. Descriptive statistics, student’s t test, one-way analysis of variance and multivariate linear regression were used for data analysis. Results: The mean total score from the FSA was 56.9 ( SD = 8.0). Education (β = −.18, p < .001) and difficulty with the care of older adults (β = −.10, p < .05) were statistically significant predictors of the FSA score. Conclusions: The attitudes of health care professionals toward older adults were generally positive and affected by difficulty in providing care and the educational status of the health care professionals.

Alterations in post-movement beta event related synchronization throughout the migraine cycle: A controlled, longitudinal study

Cephalalgia ◽  
2017 ◽  
Vol 38 (4) ◽  
pp. 718-729 ◽  
Author(s):  
Martin Syvertsen Mykland ◽  
Marte Helene Bjørk ◽  
Marit Stjern ◽  
Trond Sand
Keyword(s):  
Sensorimotor Cortex ◽  
Repeated Measures ◽  
Cortical Excitability ◽  
T Test ◽  
The Difference ◽  
Student’S T ◽  
The Right ◽  
Cyclic Changes ◽  
Student’S T Test

Background The migraine brain is believed to have altered cortical excitability compared to controls and between migraine cycle phases. Our aim was to evaluate post-activation excitability through post-movement beta event related synchronization (PMBS) in sensorimotor cortices with and without sensory discrimination. Subjects and methods We recorded EEG of 41 migraine patients and 31 healthy controls on three different days with classification of days in relation to migraine phases. During each recording, subjects performed one motor and one sensorimotor task with the right wrist. Controls and migraine patients in the interictal phase were compared with repeated measures (R-) ANOVA and two sample Student’s t-test. Migraine phases were compared to the interictal phase with R-ANOVA and paired Student’s t-test. Results The difference between PMBS at the contralateral and ipsilateral sensorimotor cortex was altered throughout the migraine cycle. Compared to the interictal phase, we found decreased PMBS at the ipsilateral sensorimotor cortex in the ictal phase and increased PMBS in the preictal phase. Lower ictal PMBS was found in bilateral sensorimotor cortices in patients with right side headache predominance. Conclusion The cyclic changes of PMBS in migraine patients may indicate that a dysfunction in deactivation and interhemispheric inhibition of the sensorimotor cortex is involved in the migraine attack cascade.

scholarly journals Characteristics of Down syndrome subjects in a Saudi sample

2013 ◽  
Vol 84 (1) ◽  
pp. 30-37 ◽  
Author(s):  
Mohammed A. Korayem ◽  
Eman A. AlKofide
Keyword(s):  
Down Syndrome ◽  
Normal Subjects ◽  
Cranial Base ◽  
Effective Length ◽  
Categorical Variables ◽  
Mean Values ◽  
Nasolabial Angle ◽  
The Mean ◽  
Student’S T ◽  
Student’S T Test

ABSTRACT Objective: To compare the cephalometric characteristics of Down syndrome (DS) subjects with those of normal subjects. Materials and Methods: Cephalometric radiographs of 60 Saudi DS subjects and 60 controls with specific inclusion criteria were used. Descriptive statistics were used to describe the quantitative and categorical variables, and the Student's t-test for two independent samples was used to compare the mean values of quantitative variables. Results: SBa and SN were higher in controls than in DS subjects, whereas the NSBa was significantly higher in DS subjects than in controls. SNA, Co-A, ANB, and A-Na perp of controls were higher than the DS subjects. However, SN-MP, PP-MP, ANS-Me/N-Me, Y-axis, and Ar-Go-Me of the DS subjects were higher than those of the controls. In addition, U1-NA, U1-NA mm, L1-NB, and L1-NB mm of the DS subjects were also higher than the controls with a more acute U1-L1 angle in DS. NLA was larger in controls than in DS, whereas LL-E and UL-E of the DS subjects were higher than the controls. Conclusions: Differences between DS subjects and controls can be found when examining cephalometric radiographs. Anterior and posterior cranial base lengths are shorter with a backward inclination of the posterior cranial base in DS subjects. DS subjects present with a retrognathic maxilla and shorter effective length, with an increased LFH and a hyperdivergent mandible. Bimaxillary dental protrusion can also be expected in DS subjects with prominent lips and a reduced nasolabial angle.

scholarly journals A systematic approach to the formation of general professional competencies during the specialists’ training in the field of aquaculture

2020 ◽  
Vol 210 ◽  
pp. 22023
Author(s):  
Anna Neydorf ◽  
Elena Egorova
Keyword(s):  
Natural Science ◽  
Basic Knowledge ◽  
First Year ◽  
Science Knowledge ◽  
Research Goal ◽  
Methodological Approaches ◽  
The Difference ◽  
Student’S T ◽  
Definition Of ◽  
Student’S T Test

Basing on the assumption that the basic foundations of the natural science knowledge which should be developed in the process of mastering the disciplines of the educational program should be laid for the successful formation of General professional and universal competencies of future specialists in the field of aquaculture, the research goal was chosen: to study the degree of formation of the natural science knowledge among students of the specialty "Water bioresources and aquaculture”. In the written survey took part future specialists in the field of aquaculture of the first year of study (N0=60) and fourth-year students (N1=38). For statistical assessment of the results were used Fisher's φ-test and Student's t-test (p ≤ 0.01). The results showed that there were no significant differences between basic knowledge in the field of natural Sciences for the 1st-yaer and 4th-year students. The significant differences were identified in students' definition of the difference between natural science and parascientific fields of knowledge, but the best result was shown by 1st-year students. It can be concluded that pedagogical technologies used for the formation of General professional and universal competencies need to be modernized, and further research and development of new methodological approaches to teaching disciplines related to basic natural science knowledge will be promising.

scholarly journals Measurement of loosening torque of prosthetic components in Morse taper connection implants

2014 ◽  
Vol 2 (4) ◽  
pp. 335
Author(s):  
Dimas João Rodrigues Neto ◽  
Giordano Maciel Silva ◽  
Daiane Cerutti-Kopplin ◽  
Jefferson Ricardo Pereira ◽  
Keila Cristina Raush ◽  
...  
Keyword(s):  
Mechanical Resistance ◽  
Significance Level ◽  
Significant Difference ◽  
Steel Base ◽  
Different Types ◽  
Minute Interval ◽  
The Difference ◽  
Student’S T ◽  
Torque Values ◽  
Student’S T Test

AIM: The aim of this study was to verify two different types of interfaces in Morse taper connection implants, relating the mechanical resistance to a loosening torque that is required to separate or move the prosthetic abutment. MATERIAL AND METHODS: Ten Morse taper connection implants and their respective abutments were divided into two groups (n = 5), DH (double hexagon) interface and OI (octagonal implant) interface. A standard insertion of implants was performed in a stainless steel base, where each abutment received a sequence of two consecutive tightening torques at a 10-minute interval, followed by a loosening torque, which was measured using a digital torque gauge. The Student’s t-test with a 5% significance level was used for data analysis. RESULTS: The results showed a statistically significant difference in the loosening torque values compared with DH torque values (p < 0.05). However, the difference between tightening and loosening torque values was not statistically significant in the OI group (p = 0.465). CONCLUSION: The study concluded that there was a difference in the torque required to loosen the abutment screws between the DH group and the OI group, with the latter showing better results.

scholarly journals ACUTE APPENDICITIS

2015 ◽  
Vol 22 (09) ◽  
pp. 1212-1216
Author(s):  
Abdul Salam Memon ◽  
Shahida Khatoon ◽  
Riaz Ahmed Memon ◽  
Afzal Junejo
Keyword(s):  
Acute Appendicitis ◽  
Mean Platelet Volume ◽  
P Value ◽  
Platelet Volume ◽  
Chi Square ◽  
Chi Square Test ◽  
The Difference ◽  
Student’S T ◽  
Control Study ◽  
Student’S T Test

Objectives: To study mean platelet volume (MPV) in acute appendicitis andits correlation with leukocyte count. Study Design: Case control study Place and Duration:Department of Surgery, Liaquat University of Medical and Health Sciences Jamshoro/Hyderabadfrom January 2013 to February 2014. Subjects and Methods: Subjects with clinical suspicionof acute appendicitis were selected according inclusion and exclusion criteria. A sample of 49acute appendicitis patients and 37 controls were studied. The Blood samples were collected insodium citrate vacutainers and processed on Sysmex KX 21 analyzers. The main analysis wasthe comparison of the difference of MPV between acute appendicitis and controls. Data wasanalyzed on SPSS version 21.0 by student’s t-test, Chi-square test and Pearson’s correlation (r)was used to evaluate association of MPV with platelet counts and leukocytes. A p-value of ≤0.05was taken significant. Results: The mean platelet volume and leukocytes were significantlyelevated in patients with acute appendicitis. MPV and leukocytosis in controls and cases werenoted as 7.93±2.1 vs. 9.10±2.9fl (p=0.0001) and 6980±120 vs. 13980±340 μL-1 respectively.MPV was positively correlated with leukocytosis (r=0.419) (p=0.0001), while Platelets showeda negative correlation. Conclusion: Elevated MPV and leukocytosis are observed in acuteappendicitis. MPV may be exploited for clinical diagnosis of acute appendicitis but in a properclinical context along with leukocytosis.

The results of self-etching self-adhesive flowable composite application for primary molars fissure sealing in children

2021 ◽  
Vol 21 (2) ◽  
pp. 113-117
Author(s):  
A. A. Shkhagosheva ◽  
E. E. Maslak ◽  
D. I. Fursik
Keyword(s):  
Complete Loss ◽  
Primary Molars ◽  
Occlusal Caries ◽  
Non Invasive ◽  
Flowable Composite ◽  
The Difference ◽  
Student’S T ◽  
Flowable Composites ◽  
Fissure Sealing ◽  
Student’S T Test

Relevance. The use of light-cure sealants and flowable composites for fissure sealing in children is difficult due to the complexity of the procedure. The research aimed to study the efficiency of self-etching self-adhesive flowable composite for fissure sealing in primary molars in children.Materials and methods. The Local Ethical Committee permission and written informed voluntary consents from the parents were obtained before the study. Non-invasive fissure sealing with self-etching self-adhesive flowable composite (Constic, DMG, Germany) was performed in 48 primary molars in 48 children aged 2-5 years (mean 41.2 ± 1.3 months). After 6, 12, 18 and 24 months, the sealant’s retention (%) and frequency (%) of occlusal caries development, and 95% confidence intervals (CI) were calculated. The significance of the difference was assessed by the Student’s t-test.Results. After 6 and 12 months, complete sealant’s retention was revealed in 75.0% (CI 61.2-85.1%) and 60.4% (CI 46.3-73.0%) molars, p > 0.05; it decreased to 27.1% (CI 16.6-41.0%) and 18.7% (CI 10.2-31.9%), p > 0.05, after 18 and 24 months. Complete loss of the sealant was noted in 8.3-18.7% cases. The first caries lesion (2.1%, CI 0.4-10.9%) on the surface with the lost sealant was revealed after 12 months, after 24 months – 4.2% (CI 1.1-14.0%).Conclusions. In primary molars after non-invasive fissure sealing with self-etching self-adhesive flowable composite, complete loss of the sealant was from 8.3% to 18.7% after 6-24 months post-op, partial loss was from 8.3% to 31.3%. Occlusal caries was revealed in 6.3% cases after the sealant loss.

Differences in production and type trait selection differentials between bulls used in official and owner/sampler dairy herds

1992 ◽  
Vol 72 (4) ◽  
pp. 783-789
Author(s):  
T. P. Brown ◽  
R. I. Cue
Keyword(s):  
Key Words ◽  
Dairy Herd ◽  
Dairy Herds ◽  
Production Traits ◽  
Selection Differential ◽  
The Difference ◽  
Student’S T ◽  
Selection Differentials ◽  
Student’S T Test ◽  
General Appearance

Differences in the emphasis placed on type and production traits between bulls used in official herds and those used in owner/sampler (O/S) herds registered at the Quebec Dairy Herd Analysis Service were calculated. For 543 881 Holsteins and 41 955 Ayrshires, service records (containing the cow and service sire identification and the service sire's production and type proofs) were used to calculate selection differentials (SD) for the bulls used in official and O/S herds for each 6-mo period between 1980 and 1983. An SD was calculated as the difference between a bull's proofs in a service record and the average proof of all bulls available in the same period. Selection differential means and variances were calculated within each herd, and the average and variance of these means were determined for each 6-mo period. Differences in SD between bulls used in official and O/S herds were determined using the Student's t-test for differences between means. Within Holsteins, SD for final class, general appearance, fore udder, rear udder, size and stature of bulls used in official herds were significantly higher in O/S herds. Within Ayrshires, no significant differences in type-trait SD were found because a very small number of prominent bulls were used extensively throughout both official and O/S Ayrshire herds. Although not significant, in all periods production trait SD tended to be higher for bulls used in O/S herds than for bulls used in official herds for both Holsteins and Ayrshires. Key words: Dairy cattle, bull selection, official, owner/sampler

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