scholarly journals STATISTICAL ANALYSIS OF MARINE ACCIDENTS IN THE STRAIT OF İSTANBUL USING CHI-SQUARE TEST

2021 ◽  
Author(s):  
Nur Jale ECE
Keyword(s):  
Statistical Analysis ◽  
Chi Square ◽  
Chi Square Test ◽  
Marine Accidents

Association Between Positive Occipital Sharp Transients of Sleep and Lambda Waves

2018 ◽  
Vol 50 (3) ◽  
pp. 219-221
Author(s):  
Ushtar Amin ◽  
Lucy Sullivan ◽  
Pat Trudeau ◽  
Selim R. Benbadis
Keyword(s):  
Statistical Analysis ◽  
Chi Square ◽  
High Association ◽  
Similar Morphology ◽  
Strong Similarity ◽  
Continuity Correction ◽  
Chi Square Test

Positive occipital sharp transients of sleep (POSTS) and lambda waves have similar morphology and location. We studied a possible association between these 2 normal EEG patterns. We reviewed a series of consecutive unselected ambulatory EEGs during a 3-month period (October 16, 2017 to January 19, 2018) and identified records with POSTS and records with lambda waves. Statistical analysis was performed using a chi-square test. A total of 140 ambulatory EEGs were reviewed. Duration of EEGs ranged from 24 to 168 hours (mean 76 hours). The population was 34% males, with ages ranging from 3 to 93 years (mean 48 years). Of the 140 records, 30 were abnormal, including 20 with epileptiform abnormalities. A chi-square test for independence (with Yates continuity correction) indicated a significant association between POSTS and lambda waves, χ2(1, n = 140) = 69.208, p < .001, φ = 0.72. In addition, 100% of records with lambda waves had POSTS, and 72% of records with POSTS had lambda waves. There is a high association between lambda waves and POSTS. This suggests a strong similarity between the 2 waveforms, and possibly a common occipital generator.

scholarly journals A Study on the impact of Coping Strategies over Stress Management – An Empirical Study

2021 ◽  
Vol 12 (3) ◽  
pp. 5566-5573
Author(s):  
Ch.Narahari Et. al.
Keyword(s):  
Statistical Analysis ◽  
Empirical Study ◽  
Stress Management ◽  
Emotional Support ◽  
Positive Emotion ◽  
Software Industry ◽  
Total Sample ◽  
Chi Square ◽  
Chi Square Test ◽  
The Impact

In the present study we analyze the employees’ perception towards coping measures adopted byfirms in software industry. The considered coping constructs adopted for the study in stress abatement areVenting of Emotions,Problem Focused, Seeking Information and emotional support, Positive Emotion-Focused, were, employee perception was acquired by a systematic survey.A total sample of 800 employees’perceptions have been collected through simple random technique and out of which survey respondents, irregular responses are eliminated finally 756 samples are determined for statistical analysis. Chi-square test was performed to determine the association between perceptions and model constructs. Results are reported and discussions are made as per the results and in correlation between results of previous literature.Finally, suggestions and future indication for extension of the study are proposed.

Prevalence of Premature Eruption and Agenesis of Premolars in Turkish Children: A Retrospective Study

2021 ◽  
Vol 45 (1) ◽  
pp. 58-62
Author(s):  
Nagihan Koc ◽  
Elif Ballikaya ◽  
Zafer Cavit Cehreli
Keyword(s):  
Retrospective Study ◽  
Statistical Analysis ◽  
Sex Difference ◽  
Chi Square ◽  
Turkish Children ◽  
Panoramic Radiographs ◽  
Chi Square Test ◽  
Demirjian’S Method ◽  
Clinical Problems ◽  
Stage D

Objective: To determine the prevalence and distribution of premature eruption and agenesis of premolars in a sample of Turkish children. Study design: A sample of 1715 patients aged 5 to 11 years was selected. Panoramic radiographs were used to assess premature eruption and agenesis of premolars. Developmental stage of erupted premolars was assessed using Demirjian’s method and selecting prematurely erupted premolars on the basis of clinical eruption with a root length less than half of their final expected root lengths. Statistical analysis was performed using chi-square test (p &lt;.05). Results: One hundred fifteen (6.7%) of 1715 patients presented at least one premolar agenesis with no significant sex difference (56 boys, 59 girls). Mandibular second premolars were the most absent teeth. Multiple agenesis of premolars (3.4%) was more common than single agenesis (3.3%). A total of 85 (5.0%) patients (51 boys, 34 girls; no significant sex difference) had at least one prematurely erupted premolar, and maxillary first premolars were most commonly affected. Early erupted premolars were in stage D or E based on Demirjian’s dental formation scale. Conclusions: The prevalence of premature eruption and agenesis of premolars in Turkish children were 5.0% and 6.7%, respectively. Both conditions are not uncommon and may highlight the need for early diagnosis to prevent subsequent clinical problems.

Seasonality of births in affective disorder in an Irish population

1998 ◽  
Vol 13 (7) ◽  
pp. 353-358 ◽  
Author(s):  
M Clarke ◽  
F Keogh ◽  
PT Murphy ◽  
M Morris ◽  
C Larkin ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Statistical Analysis ◽  
General Population ◽  
Affective Disorder ◽  
Fourth Quarter ◽  
Season Of Birth ◽  
Irish Population ◽  
Chi Square ◽  
Chi Square Test ◽  
Seasonality Of Births

SummarySeasonal variation in the births of patients with schizophrenia is a consistently replicated epidemiological finding. Few studies have investigated this phenomenon among patients with a diagnosis of affective disorder. The majority of season of birth studies have employed the chi square test for statistical analysis, a method that has been subject to some criticism. Using a Kolgomorov-Smirnov type statistic, the quarterly birth distribution of 6,646 patients with an ICD 9/10 diagnosis of affective disorder were compared to the general population. Only the births of those individuals with unipolar forms of affective disorder (n = 4,393) differed significantly from the general population, with significant excesses and deficits in the second quarter and fourth quarter respectively. These results were not altered by application of the displacement test. © 1998 Elsevier, Paris

scholarly journals Palatal Rugae Pattern in Nepalese Subjects

2013 ◽  
Vol 3 (2) ◽  
pp. 36-39 ◽  
Author(s):  
Dipshikha Bajracharya ◽  
Anisha Vaidya ◽  
Sunaina Thapa ◽  
Sujita Shrestha
Keyword(s):  
Statistical Analysis ◽  
Population Differentiation ◽  
Forensic Odontology ◽  
Chi Square ◽  
Statistical Significant Difference ◽  
Palatal Rugae ◽  
Significant Difference ◽  
Chi Square Test ◽  
The Mean ◽  
Gender Groups

Objective: To determine the number and pattern of palatal rugae in Nepalese subjects and to find the association of gender with the number and pattern of palatal rugae. Materials & Method: 200 Nepalese subjects comprising of 100 male and 100 female were randomly selected and their maxillary casts were examined for the palatal rugae length applying the classification proposed by Thomas and Kotze and palatal rugae pattern was recorded using the classification given by Kapali. Statistical analysis using Student t-test was applied for comparing the number of palatal rugae between right and left sides. Chi square test was used to find the association between gender and number of rugae as well as the pattern. Result: The study demonstrated that the mean number of primary palatal rugae on left side was predominant, similarly wavy pattern was the most predominant in Nepalese subjects. No statistical significant difference was noticed in the palatal rugae number and pattern between the gender groups. Conclusion: The study found predominant palatal form in Nepalese subjects which might have superior effectiveness in population differentiation and may be used as an effective tool in forensic odontology identification.  

scholarly journals Relationship between Undescended Testis Position and Prevalence of Testicular Appendices, Epididymal Anomalies, and Patency of Processus Vaginalis

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Luciano A. Favorito ◽  
Helce Riberio Julio-Junior ◽  
Francisco J. Sampaio
Keyword(s):  
Statistical Analysis ◽  
Undescended Testis ◽  
Inguinal Canal ◽  
Human Fetuses ◽  
Processus Vaginalis ◽  
Chi Square ◽  
Chi Square Test

Objectives. To assess the incidence of testicular appendices (Tas), epididymal anomalies (EAs), and processus vaginalis (PV) patency in patients with undescended testis (UT) according to testicular position and to compare them with human fetuses. Methods. We studied 85 patients (108 testes) with cryptorchidism and compared the features with those of 15 fetuses (30 testes) with scrotal testes. We analyzed the relationships among the testis and epididymis, patency of PV, and the presence of TAs. We used the Chi-square test for statistical analysis (p<0.05). Results. In 108 UT, 72 (66.66%) had PV patent, 67 (62.03%) had TAs, and 39 (36.12%) had EAs. Of the 108 UT, 14 were abdominal (12.96%; 14 had PV patency, 9 TAs, and 7 EAs); 81 were inguinal (75%; 52 had PV patency, 45 TAs, and 31 EAs), and 13 were suprascrotal (12.03%; 6 had PV patency, 13 TAs, and 1 EAs). The patency of PV was more frequently associated with EAs (p=0.00364). The EAs had a higher prevalence in UT compared with fetuses (p=0.0005). Conclusions. Undescended testis has a higher risk of anatomical anomalies and the testes situated in abdomen and inguinal canal have a higher risk of presenting patency of PV and EAs.

scholarly journals Evaluation of Clinical Students' Perspectives and Satisfaction Levels on Practical Practices at the Faculty of Dentistry of Tokat Gaziosmanpaşa University in the Covid-19 Pandemic

2021 ◽  
pp. 20-22
Author(s):  
Işıl Sarıkaya
Keyword(s):  
Statistical Analysis ◽  
Online Survey ◽  
Practical Training ◽  
Dental Practice ◽  
Chi Square ◽  
Face To Face ◽  
Chi Square Test ◽  
Survey Results ◽  
5Th Grade ◽  
Academic Year

Aim: It was aimed to reveal the perspectives and satisfaction levels of 4th and 5th grade-clinical students who go on practice education at Tokat Gaziosmanpaşa University Faculty of Dentistry in the 2020-2021 Academic Year. Methods: Within the scope of the study, 146 students in total, who did their face-to-face internship between October 5 and December 11, 2020, were asked to participate in an online survey with 10 questions. Clinical students were asked about their perspective on Covid-19 infection, whether they felt safe in their dental practice, their families' level of anxiety about their internship, and whether they voluntarily chose dentistry. Results: According to the survey results; 15.1% of the students agree (TA), 27.4% agree (A), 37% partially agree (PA), 13% disagree (D) with the statement “I am pleased to have internships since the beginning of the term” 7.5% of them answered, “Strongly disagree” (SD). Pearson’s chi-square test was used in the statistical analysis of the answers given by 4th and 5th-grade students to the first 9 questions of the questionnaire consisting of the same questions. According to the survey results, it was also observed that most students chose the dentistry profession of their own will (TA 39%, A 36.3%, PA 13.7%). The number of students who think they feel safe in terms of infection control during their internship is 60% in total (TA 5.5%, A 17.1%, PA 37.7%). Conclusion: Despite the increasing number of cases until today, it is thought that the process has been successfully managed and that the students have gained experience in practical training, albeit limited.

scholarly journals PENGARUH SUBSTITUSI BUAH SUKUN (ARTOCARPUS COMMUNIS) DAN KACANG HIJAU (VIGNA RADIATA) TERHADAP DAYA TERIMA DAN KANDUNGAN PROTEIN FLAKES

2017 ◽  
Vol 11 (1) ◽  
pp. 77
Author(s):  
Alzha Adila Harisina ◽  
Annis Catur Adi ◽  
Farapti Farapti
Keyword(s):  
Statistical Analysis ◽  
Protein Content ◽  
Mean Value ◽  
Supplementary Feeding ◽  
Acceptance Test ◽  
School Students ◽  
Chi Square ◽  
Carbohydrate Source ◽  
Randomized Design ◽  
Chi Square Test

Breadfruit is staple food of carbohydrate source alternative, while the mung beans is source of vegetable protein that potential to be processed as fl akes for supplementary feeding of schoolchild. This research aims to determine the effect of breadfruit and mung beans substitution toward the acceptance and protein content, as well as determine the best formula to produce a quality fl akes. Type of research is true experimental design with completely randomized design with 3 times replicating. Untrained panelists were used 34 2nd elementary school students. Product acceptance was tested using statistical analysis Chi square (α ≤ 0.005). The result of product acceptance test shown the most preferred panelist is fl akes F1 (breadfruit 50g, mung beans 50 g, and tapioca fl our 50 g) which have mean value of the highest rank in the aroma characteristic (87.00), texture (95.00) and taste (89.50), while the color values meanrank (77.5) under the color of the basic formula (83.5). F1 has 9.8 g protein content per serving. Statistical analysis of acceptance differences using chi square test on the assessment of the color, aroma, texture and fl avor showed signifi cant differences (α ≤ 0.05) on each characteristic between F0 to F2, F0 to F3, F1 with F2 and F1 to F3, whereas there wasno signifi cant difference (α ≥ 0.05) for the acceptance of color, aroma, texture and fl avor fl akes F0 to F1 and F2 to F3. The best composition, acceptability, and nutritional value was found in F1 (breadfruit 50 g, mung beans 50 g, and tapioca fl our 50 g) and can be used as alternative of supplementary feeding for school students.Keywords: Breadfruit, acceptance, fl akes, mung beans, protein

scholarly journals Association of Snoring and Cardiovascular Symptoms - A Survey

2020 ◽  
Vol 11 (SPL3) ◽  
pp. 653-658
Author(s):  
Malavika Pradeep ◽  
Sridevi G ◽  
Kavitha S
Keyword(s):  
Statistical Analysis ◽  
Chest Pain ◽  
Health Problems ◽  
Chi Square ◽  
Statistical Software ◽  
Loud Sound ◽  
Respiratory Disorders ◽  
Online Platform ◽  
Chi Square Test ◽  
Sleep Posture

Snoring is a loud sound that can be produced when air across the relaxed tissues of the throat. The causes of snoring include age, being overweight or out of shape, the way you are built, nasal and sinus problems, sleep posture, alcohol, smoking and medications. The present study was performed to find the association between the habit of snoring and health problems like hypertension, breathlessness, fatigue and chest pain among genders. A self-developed questionnaire to assess the snoring habits of the participants with their underlying health problems. The study was conducted on an online platform and the responses were collected. The datas were collected and analysed with the help of statistical software SPSS version 22 and chi-square test was used as a statistical analysis to find how snoring habit affects the participants based on the gender. The results revealed that male respondents who have the habit of snoring are more related to problems like breathlessness, hypertension, fatigue and chest pain compared to females. This result can be justified by the fact that females have strong hormonal support offered by estrogen that protects them from cardiovascular and respiratory disorders.

scholarly journals HUBUNGAN TINGKAT KEBERSIHAN DIRI DAN FAKTOR PREDISPOSISI PADA ANAK DI PANTI ASUHAN AL-AMAL SURABAYA

2021 ◽  
Vol 5 (1) ◽  
pp. 19-27
Author(s):  
Astri Nur Amalia
Keyword(s):  
Statistical Analysis ◽  
Infectious Diseases ◽  
Total Population ◽  
Predisposing Factors ◽  
Personal Hygiene ◽  
P Value ◽  
Chi Square ◽  
Cross Sectional ◽  
Chi Square Test ◽  
Research Type

ABSTRACT The incidence of infectious diseases due to personal hygiene in orphanages children often occurs. a factor that has an influence is predisposing factors. The purpose of this study is to known the correlation between the level of personal hygiene and predisposing factors in children at Panti Asuhan Al Amal Surabaya. The research type was observation research with cross sectional approach. The research subject’s samples used 67 children from 80 children of total population. Statistical analysis to obtain correlation used chi-square test. The results showed that there is  relationship between age (p value = 0.002), knowledge (p value = 0.039), and facility (p value = 0,001) to the level of personal hygiene. there is no relationship bentween gender (p value = 0.084) and attitude (p value = 0.225) to the level of personal hygiene. So it can be concluded that age and knowledge as predisposing factors are dominant to influence person's behavior. Keywords: personal hygiene, knowledge, predisposing factors, children   ABSTRAK Kejadian penyakit menular karena kurangnya kebersihan diri pada anak di panti asuhan sering terjadi. Salah satu faktor yang memiliki pengaruh yaitu faktor predisposisi. Tujuan dari penelitian ini adalah mengetahui hubungan antara tingkat kebersihan diri dan faktor predisposisi pada anak di Panti Asuhan Al Amal Surabaya. Jenis penelitian ini adalah penelitian obseravional dengan pendekatan cross sectional. Jumlah sampel yang digunakan sebesar 67 anak dari total populasi 80 anak. Analisa statistik untuk mendapatkan hubungan menggunakan uji chi-square. Hasil menunjukkan bahwa ada hubungan usia (p value = 0,002), pengetahuan ( p value = 0,039), dan fasilitas (p value = 0,001) terhadap tingkat kebersihan diri. Jenis kelamin (p value = 0,084) dan sikap (p value = 0,225) tidak ada hubungan terhadap tingkat kebersihan diri. Sehingga dapat disimpulkan bahwa usia, pengetahuan, dan fasilitas sebagai faktor predisposisi yang  dominan dalam mempengaruhi perilaku seseorang. Kata Kunci: kebersihan diri, pengetahuan, faktor predisposisi, anak

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