WEED SPECIES ASSOCIATION IN ARABLE FIELDS: OLD APPROACH, NEW APPLICATION

2018 ◽  
Vol 55 (3) ◽  
pp. 359-370
Author(s):  
G. CONCENÇO ◽  
A. ANDRES ◽  
F. SCHREIBER ◽  
I. S. MOISINHO ◽  
M. C. CORADINI ◽  
...  
Keyword(s):  
Winter Season ◽  
Point Of View ◽  
Plant Association ◽  
Weed Species ◽  
Chi Square ◽  
Species Association ◽  
Arable Fields ◽  
Species Area ◽  
Chi Square Test

SUMMARYWe aimed to assess the potential of the characterization of association among weed species as a tool to understand weed occurrence for further supporting long-term management programs. After a sequence of summer crops, which included irrigated rice and sorghum, the experimental area was submitted to subsoiling, limestone was applied, and ryegrass was planted in the winter season. Six months later, an ACCase-inhibitor herbicide was used to select only non-grassweed species. Field survey was carried out on 100 quadrats with 0.5-m width that were randomly sampled. Plant species were organized in 2 × 2 contingency tables. The results of the calculated chi-squares were compared to the respective tables, and results were presented as a paired chi-square matrix. The species–area curve was also obtained. The relative occurrence of species was determined by its frequency and presented as a wordcloud. The network analysis was obtained by using the Fruchterman–Reingold layout. The hypothesis of plant association aiming survival in arable fields was validated. The methodology of plant association based on the chi-square test was applicable to arable fields, where weed species (usually competitor plant types) occur in clusters. From a practical point of view, preference should be given to herbicides that are efficient on most species within a given cluster.

scholarly journals The perception of COVID-19 among Italian dental patients: an orthodontic point of view

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Stefano Martina ◽  
Alessandra Amato ◽  
Paolo Faccioni ◽  
Alfredo Iandolo ◽  
Massimo Amato ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Point Of View ◽  
Dental Practice ◽  
Online Questionnaire ◽  
Chi Square ◽  
Dental Patients ◽  
Patient Health ◽  
Chi Square Test ◽  
Orthodontic Patients ◽  
Level Of Significance

Abstract Background The present study aimed to investigate the patients’ perception of the dental practice during the COVID-19 outbreak, and whether the pandemic will affect the attendance of orthodontic patients at the dental practice. An online questionnaire, including the Patient Health Questionnaire-4 (PHQ-4), was submitted to Italian dental patients with items about their perceived risks when going to the dentist, concerns about continuing orthodontic treatment, and the onset of temporomandibular disorders (TMD). Data were analyzed with a chi-square test and logistic regression analysis. The level of significance was set at P < 0.05. Results A total of 1566 subjects completed the survey, including 486 who were under orthodontic treatment or who had a child in orthodontic treatment. A total of 866 participants (55.3%) thought the risk of contracting the COVID-19 infection was higher in a dental practice; this perception was associated with gender (women more than man), age (over 60 years old) and high levels of distress (P<0.001). However, 894 patients (57.1%) felt comfortable going back to the dentist. Most of the orthodontic patients (84%) would continue their treatment. After the lockdown, there was a slight increase in the frequency of TMD pain (356 versus 334). Conclusions Most of the participants believed that the dental practice is a place at greater risk of contracting COVID-19, even if they continue to go to the dentist. Gender, age, and the level of distress were associated with the increase in the fear of going to the dentist due to COVID-19. Because of the pandemic, 16% of patients undergoing orthodontic treatment would not return to the dental practice to continue their orthodontic treatment after the lockdown. The prevalence of TMD pain in the population increased due to the pandemic.

scholarly journals Assessment of Poverty by Municipalities in the Context of Population Ageing—The Case of Małopolskie Voivodeship

2021 ◽  
Vol 13 (5) ◽  
pp. 2563
Author(s):  
Małgorzata Ćwiek ◽  
Katarzyna Maj-Waśniowska ◽  
Katarzyna Stabryła-Chudzio
Keyword(s):  
The Elderly ◽  
Research Problem ◽  
Point Of View ◽  
Computer Assisted ◽  
Chi Square ◽  
Social Challenge ◽  
Depth Analysis ◽  
Qualitative Variables ◽  
Chi Square Test ◽  
Research Gap

This article undertakes the research problem of the assessment of the significance of poverty as a social challenge for local self-government units, and the differences in the assessment of the incidence of this phenomenon depending on the type of municipality. The authors also analyse the relationships between the ageing of the population and the assessment of the extent of poverty by municipalities. It must be pointed out that the undertaken problem has not been a subject of in-depth analysis thus far. Hence, this article fills the identified research gap in this field. The empirical part is based on the results of our own research, conducted using the Computer-Assisted Web Interview (CAWI) method on a sample of 144 municipalities of the Małopolskie Voivodship (Poland). In order to verify whether there is a relationship between the researched qualitative variables, the chi-square test of independence was used. In order to determine the relationships occurring between the categories of variables characterising the scale of the incidence of poverty and the remaining variables, a correspondence analysis was conducted. The research enabled us to find the issue of poverty to be one of the most important social problems from the point of view of municipalities. It is also worth noting that the degree of ageing in the population has an impact on the assessment of poverty among the elderly.

scholarly journals Quality of Life of People with Disabilities from Sport Participation Point of View

2016 ◽  
Vol 56 (2) ◽  
pp. 77-92 ◽  
Author(s):  
Dagmar Nemček
Keyword(s):  
Quality Of Life ◽  
Sport Participation ◽  
Sport Activity ◽  
People With Disabilities ◽  
Point Of View ◽  
Subjective Quality Of Life ◽  
Chi Square ◽  
Chi Square Test ◽  
People With Physical Disabilities

SummaryThe aim of the study was to compare the satisfaction with quality of life indicators (QoLI) and quality of life domains (QoLD) scores between people with physical disabilities (PPD) and people who are deaf or hard of hearing (PD/HH) from sport participation point of view. The study included 315 individuals with PPD (n = 150; male = 76) and PD/HH (n = 165; male = 85) divided into two groups of those who are regularly participating in sport and those who are not participating in any sport activity in their leisure. The second part of the Subjective Quality of Life Analysis (S.QUA.L.A.) was used. The Pearson chi-square test was used to determine the differences in 23 QoLI and 5 QoLD between PPD and PD/HH from sport participation point of view and student’s two-sample t-test was used to compare overall quality of life (QoL). We found that PD/HH who are participating regularly in sport presented significantly higher satisfaction with 7 evaluated QoLI and with all 5 QoLD. Overall QoL score was significantly higher (p < .01) in PD/HH. In the group of people who are not participating in sport we found significantly higher satisfaction with 13 QoLI in PD/HH and with 8 QoLI in PPD. Satisfaction with 4 QoLD was significantly higher in PD/HH and only with domain (physical health) were significantly higher satisfied PPD (p < .01). Overall QoL score did not show significant differences between groups of people with disabilities who are not participating in any sport. The results of our study confirmed that PD/HH have significantly higher QoL comparing PPD no matter if they participating in sport or not. This evaluation measured by S.QUA.L.A shows that it is a suitable tool to asses QoL in people with different kinds of disabilities.

scholarly journals An Analysis of the Condition of the Tourist Brand and Tourist Attractiveness of the Podkarpackie Region Based on the Brand Asset Valuator Model

2019 ◽  
Vol 26 (2) ◽  
pp. 34-39
Author(s):  
Beata Gierczak-Korzeniowska
Keyword(s):  
Applied Research ◽  
Rank Correlation ◽  
Point Of View ◽  
Chi Square ◽  
Spearman’S Rank Correlation ◽  
Spearman’S Rank Correlation Coefficient ◽  
Ecological Aspects ◽  
Historical Heritage ◽  
Term Management

AbstractIntroduction. There are many factors which determine the attractiveness of a region for tourists. However, such assessments are, relatively rarely, a result of the analysis of the presence and condition of regional tourist brands and their perception among visitors. The analysis and assessment of the condition of a brand can be carried out using the BAV (Brand Asset Valuator). This is an extremely interesting and useful tool which explains the dynamics of behaviour of brands on the market and diagnoses their “health”, supporting the process of their long-term management.Materials and methods. On the basis of the results of a pilot study, an attempt is made to measure the tourist attractiveness of the Podkarpackie region through the assessment of regional tourist brands and their features which are important from the point of view of the inhabitants of the region. The BAV model was used to analyse 32 tourist products. The applied research methods include the Mann-Whitney test, Spearman’s rank correlation coefficient, and the chi-square independence test.Results. The mapped data analysis based on the BAV model showed that 16 out of 32 products assessed were located in the leadership quadrant. The majority of the remaining products were in the development or decline phases.Conclusions. The presence of branded tourist products and their number have an impact on the tourist attractiveness of the region. The following aspects of the region were considered the most attractive: nature (natural surroundings, natural values, and ecological aspects), heritage (historical heritage and monuments and presentation of important past events), and tourism (tourism and recreation offerings).

Evaluation of the Teaching Performance of Baghdad University and Salahaddin University From The Point of View of Their Department Heads ( Comparative Study )

2021 ◽  
Vol 8 (1) ◽  
pp. 398-432
Author(s):  
Shawbo Shamsaldeen Sulayman ◽  
Thiqa Ali Abdulwahid
Keyword(s):  
Comparative Study ◽  
Point Of View ◽  
Faculty Members ◽  
Future Research ◽  
Teaching Staff ◽  
Teaching Performance ◽  
Department Heads ◽  
Validity And Reliability ◽  
Chi Square ◽  
Chi Square Test

The objective of the research was to evaluate the performance of the teaching staff of the Baghdad and Salahaddin University-Erbil from the point of view of the heads of their departments in a number of different colleges as a comparative study. The research community was (247) individuals from the heads of departments in the above universities, and a sample size was chosen randomly was(197) unit, and (134) individuals from the department heads at the University of Baghdad, and (63) unit from the department heads at Salahaddin University-Erbil. To achieve the research objectives, a (closed — open) questionnaire was prepared consisting of (49) paragraphs distributed into six specific fields of alternatives. To answer it and one open question in the questionnaire, the validity and reliability of the questionnaire was verified. The data was analyzed using the (weighted mean equation, the percentage weight equation and the chi-square test). The results showed there was no differences between the responses of department heads in evaluating the teaching performance of faculty members in the research sample in two universities. In addition, a number of proposals were presented to develop the performance of faculty members from the point of view of department heads in both universities. The two researchers made a number of recommendations as well, as well as a number of proposals to conduct future research for researchers in this field.

THE RELATIONS BETWEEN WORKING POSITION WITH NON-SPECIFIC NECK PAIN ON LAUNDRY WORKERS IN DENPASAR CITY

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Ni Made Wahyuni Dewi ◽  
Nila Wahyuni ◽  
Luh Putu Ratna Sundari
Keyword(s):  
Neck Pain ◽  
Hypothesis Test ◽  
Neck Disability Index ◽  
P Value ◽  
Chi Square ◽  
Cross Sectional ◽  
Long Time ◽  
Chi Square Test ◽  
Neck Disability

Non-specific neck pain is a neck pain caused by bad posture in the long term. Laundry workers who everyday often perform activities ironing for a long time at risk of non-specific neck pain due to working position that are not ergonomic. The purpose of this research is to determine the relation between working position with non-specific neck pain on laundry worker in Denpasar City. This research is cross sectional analytic research with purposive sampling. The number of sample is 60 workers with the range of age 20-40 years. Independent variable measured is working position with RULA method, while the dependent variable measured is non-specific neck pain with Neck Disability Index Questionnaire. Hypothesis test used is Chi-Square Test. The resulted of Chi-Square Test on working position with non-specific neck pain variable shown the result of p value is 0,00 or p < 0,05. Based on the results of this study it can be concluded that found a significant relationship between working position against non-specific neck pain on laundry worker in Denpasar City. Keywords: Working Position, Non-Specific Neck Pain, Laundry Worker.

scholarly journals Clinical characteristics and treatment outcomes of patients with MDR tuberculosis in Dar Es Salaam region, Tanzania

2020 ◽  
Vol 2 (4) ◽  
Author(s):  
David T Myemba ◽  
George M Bwire ◽  
Godfrey Sambayi ◽  
Betty A Maganda ◽  
Belinda J Njiro ◽  
...  
Keyword(s):  
Mortality Rate ◽  
Clinical Characteristics ◽  
Cox Regression ◽  
Medication Use ◽  
Dar Es Salaam ◽  
Hazard Ratio ◽  
Chi Square ◽  
Mdr Tb ◽  
Chi Square Test

Abstract Background In Tanzania more than 28% of all multi-drug resistant tuberculosis (MDR-TB) cases occur in Dar es Salaam. However, information about management and clinical outcomes of patients with MDR-TB in the region is scarce, and hence the need for this study. Methods A 5-year retrospective cohort study was conducted in six centres in Dar es Salaam. Descriptive statistics were used to summarize social demographics and clinical characteristics. Associations between occurrence of adverse events, regimen change and cure were determined using the Chi-square test whereas factors associated with mortality were determined using the Log-ranking test and Cox regression model. Results Three-hundred patient files were found and reviewed. The majority were male 199 (66.3%), aged 25–44 years [176 (58.7%)] and 89 (30.1%) were HIV co-infected. 186 (62%) completed their treatment, 68 (22.0%) were on treatment and 9 (3.3%) were lost to follow-up. The majority, 152 (51.0%) were managed using long MDR-TB regimens. The overall mortality rate was 5.7 per 1000 MDR-TB patients. A higher mortality rate was associated with being ≥45 years [adjusted hazard ratio (AHR): 10.82, 95% CI: 1.14–102.74, P = 0.038), female (AHR: 5.92, 95% CI: 1.75–20.08, P = 0.004), on a short anti-TB regimen (AHR: 4.34, 95% CI: 1.41–13.35, P = 0.010), HIV co-infected [crude hazard ratio (CHR): 2.56, 95% CI: 1.01–6.50, P = 0.048), on concomitant long-term medication use (CHR: 2.99, 95% CI: 1.17–7.64, P = 0.022) and having other co-morbidities (CHR: 3.45, 95% CI: 1.32–9.02, P = 0.011). Conclusions MDR-TB mortality was associated with short anti-TB regimens, sex, age, concomitant long-term medication use and HIV coinfection. In this population, use of long and individualized regimens is recommended.

Distinct Clinical Syndromes Are Defined by ADAMTS13 Activity in Idiopathic TTP: Results of the SERF-TTP Study.

Blood ◽  
2007 ◽  
Vol 110 (11) ◽  
pp. 1320-1320
Author(s):  
Anaadriana Zakarija ◽  
Hau C. Kwaan ◽  
Nicholas Banderanko ◽  
Dilip K. Pandey ◽  
John F. Cursio ◽  
...  
Keyword(s):  
Stem Cell ◽  
Platelet Count ◽  
Adverse Events ◽  
Stem Cell Transplant ◽  
Cell Transplant ◽  
Adamts13 Activity ◽  
Chi Square ◽  
Exact Test ◽  
Chi Square Test

Abstract Background: The Surveillance, Epidemiology & Risk Factors for TTP (SERF-TTP) study is the largest prospective cohort of idiopathic TTP cases to date. Methods: Patients with first episode of idiopathic TTP were enrolled at 11 sites in the US. Exclusion criteria include solid organ or allogeneic stem cell transplant, anti-neoplastic therapy or malignancy. All patients underwent therapeutic plasma exchange (TPE). Remission is defined as platelet count >150,000/mm3. ADAMTS13 activity was measured by fluorescence resonance energy transfer assay (FRETS-vWF73, Peptides Int.). ADAMTS13 inhibitor was assessed by ELISA (Technozym ADAMTS13 INH ELISA, Technoclone) and functional inhibition of normal ADAMTS13 activity (modified FRETS). Differences between the groups was evaluated by Chi-square test, t-test or Fisher’s exact test. Results: Complete data is available for 57 cases. 84% were female & median age was 42. ADAMTS13 was severely deficient (<10%) in 53%, moderate (10–50%) in 8%, & normal (>50%) in 39%. Adverse events were frequent & most commonly include citrate toxicity and allergic reactions. Long-term followup was available for 56 patients, and overall relapse rate was 25% with median time to relapse of 11 months. The relapse rate was 41% in patients with severe ADAMST13 deficiency & 0% in patients with normal ADAMTS13 activity (p=0.0077). Conclusions: Severe ADAMTS13 deficiency does not define all cases of idiopathic TTP, yet is associated with a unique syndrome characterized by severe thrombocytopenia, normal renal function, presence of ADAMTS13 neutralizing autoantibodies & high risk of relapse. Non-ADAMTS13 deficient idiopathic TTP has clinical features similar to thrombotic microangiopathies associated with stem cell transplant or drugs such as quinine, yet has a better than expected overall survival after TPE. There is likely an alternate disease mechanism for this cohort, possibly immunologic, which may be responsive to TPE and warrants further study. ADAMTS13 < 10% n=30 ADAMTS13 > 50% n=22 p-value * t-test, ** Fisher’s Exact Test, # Chi-Square Test Presenting Labs Hemoglobin (mean) 8.5 9.2 0.22* Platelet count (mean x10^9/L) 19 57 <0.0005* Serum creatinine (mean) 1.33 3.9 0.0012* ADAMTS13 antibody (neutralizing & non-neutralizing) % 100 63.6 0.0004** ADAMTS13 neutralizing antibody % 83 35 .0003# Presenting Symptoms Neurologic symptoms present 45 52.4 0.23# Diarrhea 23 30.4 0.79# Infection 40 43.5 0.79# Past Medical History Connective Tissue Disease % 10 8.5 0.28# Family history of TTP % 0 4.6 0.11# Remission Labs Hemoglobin (mean) 12.2 8.5 0.16* Platelet count (mean x10^9/L)) 169 152 0.15* Serum creatinine (mean) 1.02 3.7 0.0009* Outcomes Therapy-related Adverse events % 71 55 0.24# Time (days) to remission (plt > 150,000) 9.7 9.2 0.89* Early remission (< 8 days) % 73 57 0.20# 30 day Exacerbation rate % 35 28 0.63# 30 day Survival % 96.6 90.0 0.56** Long-term Relapse % 41 0 0.0077**

scholarly journals HUBUNGAN PENGETAHUAN DAN SIKAP IBU RUMAH TANGGA DENGAN PENGGUNAAN GARAM BERYODIUM

2019 ◽  
Vol 1 (2) ◽  
pp. 54-57
Author(s):  
Yunita Syahputri Damanik ◽  
Efrata Sembiring
Keyword(s):  
Sampling Technique ◽  
Iodized Salt ◽  
P Value ◽  
Chi Square ◽  
Food Ingredients ◽  
Health And Nutrition ◽  
Knowledge Variable ◽  
Chi Square Test ◽  
The Impact

HUBUNGAN PENGETAHUAN DAN SIKAP IBU RUMAH TANGGA DENGAN PENGGUNAAN GARAM BERYODIUM AbstractIn Indonesia IDD (Iodine Deficiency Disorder) is one of the serious public health problems because of the impact it has on the survival and quality of human resources. A long-term sustainable effort is by iodizing salt, which is adding iodine to food ingredients. The aim of this program is that 90% or more households consume iodized salt according to the requirements, which is 30-80 parts permillion (ppm). The aim of this research was to determine the relationship between knowledge and attitudes of the housewives with the use of iodized salt in Delitua Timur, Deli Serdang. The sampling technique in this research was non probability sampling using a purposive method of 96 people. The analysis carried out using the chi-square test. The results of the research on 96 respondents for the knowledge variable obtained a p-value of 1,000 where p > 0.05 which means there was  not relationship between knowledge and the use of iodized salt. And for attitude variables obtained p-value 0.010 which means there was a relationship between attitudes and use of iodized salt in Delitua Timur, Deli Serdang. The suggested for this research to the society to increase their knowledge and positive attitude to use of iodized salt in an effort to improve health and nutrition.

scholarly journals THE CORRELATION BETWEEN DIET AND THE TYPE OF CANCER AT THE CHEMOTHERAPY ROOMS IN GENERAL HOSPITAL ABDUL WAHAB SJAHRANIE SAMARINDA

2020 ◽  
Vol 7 (2) ◽  
pp. 92-96
Author(s):  
Rini Ernawati ◽  
Niswatun Amanah
Keyword(s):  
General Hospital ◽  
Quantitative Research ◽  
Sampling Technique ◽  
The Body ◽  
Chi Square ◽  
Cross Sectional ◽  
Meal Pattern ◽  
Chi Square Test ◽  
Abnormal Cells

Cancer is an abnormality in the body organs, for instance the abnormal cells grow very quickly, and consequentlydisrupt the performance of normal cells. An unhealthy meal pattern can cause cancer and stress and in long term it can cause thedecrease of immunity, as the result someone with low immunity is at risk to get sick easily.The purpose of the research was toidentify the correlation between diet  and the type of cancer at the chemotherapy rooms in General Hospital Abdul Wahab Sjahranie.This study employed quantitative research design with cross sectional approach. The number of the population in this research was 183 respondents and 125 samples were selected to participate with purposive random sampling technique. The instruments of meal pattern questionnaire  is used to collect the data and Chi-Square test was utilized to analyse the statistics test.The finding from the correlation between the variable of meal pattern and the type of cancer showed significant result pvalue = 0.003 a<0.05. This means that there was significant correlation between diet and the type of cancer. This result indicate that  is significant influence  between meal pattern with the type of cancer

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