Structural characteristics, quality and plant biodiversity in forest types at Xuan Son national park, Phu Tho province

Forest structure plays a very important role in the sustainable management of forest resources. Research established 20 plots. The plot area is 900 m2 (30 m × 30 m) for 4 forest types: IIA, IIB, IIIA1 and IIIA3. Results showed that average diameter of four stages is IIA: 11.25 cm; IIB: 12.81 cm; II: 1: 15.94 cm and IIIA3: 20.30 cm. The mixed linear model demonstrated that growth in both diameter and height between forest states was significantly different (P < 0.05). Weibull and J-shape functions can simulate well for 75% of experimental distributions. Path analysis showed that for all four states, direct influence (AHTT) had a greater absolute value than the indirect effect (AHGT). Principal component analysis diagrams showed that for all four types, the quality of forest trees was closely related to canopy width, total height and diameter at breast height. The difference in the quality of the trees between the four states was really significant, as the Sig value of the Chi-square test is 0.000 (less than 0.05). Stages IIA and IIB had mainly species of pioneer species, while IIIA1 and IIIA3 had more shade tolerant species. Stage IIIA3 had the highest level of species diversity.

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Beloved Whiskers: Management Type, Care Practices and Connections to Welfare in Domestic Cats

Animals ◽

10.3390/ani10122308 ◽

2020 ◽

Vol 10 (12) ◽

pp. 2308

Author(s):

Daiana de Souza Machado ◽

Luana da Silva Gonçalves ◽

Rogério Ribeiro Vicentini ◽

Maria Camila Ceballos ◽

Aline Cristina Sant’Anna

Keyword(s):

Behavioral Problems ◽

Online Survey ◽

Principal Component ◽

Chi Square ◽

Exact Test ◽

Frequent Use ◽

Chi Square Test ◽

Categorical Principal Component Analysis ◽

Care Practices

The quality of cat care practices depends in part on the type of management applied, which either positively or negatively impacts cat welfare. This study investigated whether the type of cat management (indoor vs. outdoor) was related to other cat care practices adopted by cat owners, associated with the quality of human-cat relationships and cat welfare. An online survey was distributed via social networks. Descriptive statistics, categorical Principal Component Analysis, Fisher’s Exact test and Chi-square test in contingency table were applied. A total of 16,302 cat owners returned the survey. Most Brazilian owners reported indoor management of their cats; this was related to owners living in apartments, more frequent use of cat care practices, and more interactions with their pets. Outdoor management was related to cats living in houses or farms, sleeping outdoors or around the neighborhood, and owners had fewer interaction with their pets. In conclusion, owners practicing indoor management seemed to be closer to their cats than owners reporting outdoor management. However, obesity and owner-reported behavioral problems were associated with indoor management.

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A Clinical Study Investigating Whether the Tongue-Out Position Improves the Quality of the Anatomical Appearance of the Pharynx on CT Imaging

Frontiers in Surgery ◽

10.3389/fsurg.2021.732607 ◽

2021 ◽

Vol 8 ◽

Author(s):

Jin-Long Wu ◽

Rui-Gang Ge ◽

Guang-Jian Tang

Keyword(s):

Normal Distribution ◽

Soft Palate ◽

Ct Images ◽

Chi Square ◽

Pyriform Fossa ◽

Kappa Test ◽

A Value ◽

Chi Square Test ◽

The Difference

Objective: To evaluate the effect of using the tongue-out position on the quality of the anatomical appearance of the pharynx on computed tomography (CT) images.Methods: The data from enhanced CT thin-section images of the head and neck in 119 cases scanned were retrospectively analyzed. The cases were divided into two groups based on the position of the tip of the tongue on the images: the tongue-out group (63 cases) and non-tongue-out group (56 cases). Two observers separately evaluated the anatomy of the soft palate, uvula, palatine tonsils, epiglottis, epiglottic fossa, pyriform fossa, arytenoid folds, and tongue on all images. The Kappa test was applied to assess the consistency of scores between the two observers. In the case of data that satisfied the normal distribution, the significance of the difference in the average scores between the two groups was tested using an independent samples t-test with a value of p > 0.05. In the case of data that did not satisfy the normal distribution, the Mann–Whitney U test was adopted to test the significance of the difference in the average scores between the two groups using a value of p < 0.05. The number of cases with swallowing artifacts on the CT images in both groups was statistically analyzed and the chi-square test was used to determine whether the difference in the incidence of artifacts between the two groups was significant.Results: The Kappa test showed good consistency between the two observers scoring of the soft palate, uvula, epiglottis, epiglottic fossa, pyriform fossa, aryepiglottic folds, and tongue. The image scores of the soft palate, uvula, epiglottis, epiglottic fossa, and tongue in the tongue-out group vs. the non-tongue-out group did not satisfy the normal distribution. The Mann–Whitney U test showed that the differences in the image scores between the two groups were statistically significant in all cases (p < 0.05). The incidence of swallowing artifacts in the tongue-out group and the non-tongue-out group was 15 and 32%, respectively. The result of the chi-square test showed that the difference in the incidence of swallowing artifacts between the two groups was statistically significant (p = 0.037).Conclusion: The tongue-out position facilitated an improvement in the CT appearance of pharyngeal anatomy and was associated with a reduction in the incidence of swallowing artifacts.

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DIFFERENCES IN THE QUALITY OF VACCINES STORED IN COOLER BOXES COMPARED TO HOUSEHOLD REFRIGERATORS

NSC Nursing ◽

10.32549/opi-nsc-55 ◽

2021 ◽

pp. 34-49

Author(s):

Herinawati Herinawati ◽

Atikah Fadhilah Danaz Nasution ◽

Lia Artika Sari ◽

Iksaruddin Iksaruddin

Keyword(s):

Control Group ◽

Independent Practice ◽

Chi Square ◽

Control Group Design ◽

Food And Beverage ◽

Post Test ◽

Chi Square Test ◽

The Difference ◽

Institute Of Technology

Background: The inappropriate temperature of vaccine storage may cause vaccine damage leading to degrading or even dispelling the vaccine’s quality. This research aims to reveal the difference of vaccine’s quality stored in the cooler box compared to the household refrigerator with vaccine only and the difference of vaccine’s quality stored in the cooler box compared to the household refrigerator with vaccine stored along with food and beverage Methods: The research design uses an experimental study with a post-test-only control group design. The research was conducted at two independent practice midwives in Antapani Sub-district and the Faculty of Mechanical and Aerospace Engineering Bandung Institute of Technology from November to December 2015. The research object used eight types of vaccine (Hepatitis B, BCG, DPT-HB-Hib, Polio, Measles, DT, Td, and TT) with 72 vaccine vials divided into 3 vaccine storage units. The data analysis uses the chi-square test. Results: The results of the research show that there are statistically significant differences between the vaccine’s quality stored using a cooler box compared to a household refrigerator with vaccine only and the vaccine’s quality stored using a cooler box compared to a household refrigerator with vaccine stored along with food and beverage with the value of p<0,05. Conclusion: It is concluded that there are differences of the vaccine’s quality stored using cooler box compared to a household refrigerator with vaccine only and also different vaccine’s quality stored using cooler box compared to a household refrigerator with vaccine stored along with food and beverage Keywords: Cooler box, household refrigerator, vaccine quality

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High Estrogen in Men After Injectable Testosterone Therapy

American Journal of Men s Health ◽

10.1177/1557988314539000 ◽

2014 ◽

Vol 9 (3) ◽

pp. 229-234 ◽

Cited By ~ 12

Author(s):

Robert S. Tan ◽

Kelly R. Cook ◽

William G. Reilly

Keyword(s):

Age Distribution ◽

Age Groups ◽

The United States ◽

Testosterone Therapy ◽

Chi Square ◽

Receptor Modulator ◽

Chi Square Test ◽

The Difference ◽

Estradiol Levels

Testosterone replacement improves quality of life and is aromatized in men in adipose tissues to estrogen. Hyperestrogenism is believed to be harmful to male sexuality. This is a description of our experience of screening 34,016 men in the Low T Centers, of which approximately 50% were converted to treatment. Men were treated with injectable testosterone, and we have available data from 2009 to 2014. The data were extracted from our electronic health record (AdvancedMD) of 35 Low T Centers across the United States. In all, 7,215 (20.2%) out of the 34,016 patients had high estradiol levels defined as ≥42.6 pg/ml. Estradiol was measured using electro-chemiluminescence immunoassay. Of the patients who had high estradiol levels, the age distribution was as follows: 132/989 (13.3%) were older than 65 years, 3,753/16,955 (22.1%) were between 45 and 65 years; 2,968/15,857 (18.7%) were between 25 and 44 years, 7/215 (3.3%) were younger than 25 years. The difference between extreme age groups (<25 and ≥65) was statistically significant using a chi-square test ( p = .013). The correlation coefficient of serum estradiol to age was .53, SD = 8.21. It was observed that practitioners used aromatase inhibitor and selective estrogen receptor modulator to treat symptoms of hyperestrogenism, irrespective of blood estradiol levels. Gynecomastia was rarely documented as a reason for the prescription. Our finding was that high estradiol levels were not associated with higher rates of low libido but established higher rates of documented low libido with those with normal or lower estradiol levels. The difference was statistically significant ( p < .05).

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Multivariate micropollutants analysis in marine waters

Water Science & Technology ◽

10.2166/wst.1995.0701 ◽

1995 ◽

Vol 32 (9-10) ◽

pp. 341-348

Author(s):

V. Librando ◽

G. Magazzù ◽

A. Puglisi

Keyword(s):

Multivariate Data Analysis ◽

Partial Least Squares Regression ◽

Environmental Chemistry ◽

Sampling Site ◽

Principal Component ◽

Least Squares Regression ◽

Organic Micropollutants ◽

Suspended Material ◽

The Difference

The monitoring of water quality today provides a great quantity of data consisting of the values of the parameters measured as a function of time. In the marine environment, and especially in the suspended material, increasing importance is being given to the presence of organic micropollutants, particularly since some are known to be carcinogenic. As the number of measured parameters increases examining the data and their consequent interpretation becomes more difficult. To overcome such difficulties, numerous chemometric techniques have been introduced in environmental chemistry, such as Multivariate Data Analysis (MVDA), Principal Component Analysis (PCA) and Partial Least Squares Regression (PLSR). The use of the first technique in this work has been applied to the interpretation of the quality of Augusta bay, by measuring the concentration of numerous organic micropollutants, together with the classical water pollution parameters, in different sites and at different times. The MVDA has highlighted the difference between various sampling sites whose data were initially thought to be similar. Furthermore, it has allowed a choice of more significant parameters for future monitoring and more suitable sampling site locations.

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Addition of sucrose on cryoprotectant solution of vitrification enhances the quality of Dorper sheep embryos produced in vivo

Semina Ciências Agrárias ◽

10.5433/1679-0359.2015v36n6supl2p4257 ◽

2015 ◽

Vol 36 (6Supl2) ◽

pp. 4257

Author(s):

Alane Pains Oliveira do Monte ◽

João Bosco Loiola Filho ◽

Thais Thatiane Dos Santos Souza ◽

Mayara De Souza Miranda ◽

Lívia Correia Magalhães ◽

...

Keyword(s):

Embryo Quality ◽

Control Group ◽

Chi Square ◽

Mass Occurrence ◽

Chi Square Test ◽

Vitrification Solution ◽

Cryoprotectant Solution ◽

Pellucid Zone

<p>This study aimed to evaluate the efficacy of adding sucrose in vitrification solution of ovine embryos produced <em>in vivo</em>. Forty Dorper ewes were selected and superovulated. Immediately prior to the embryo collection by laparotomy, a laparoscopy was performed to verify the superovulatory response. The recovered flushing was followed by embryo evaluation and embryos were divided in two experimental groups where embryos from Control group were submitted to a traditional vitrification protocol and embryos from Sucrose group to a modified vitrification protocol with sucrose. After warming, embryos were again divided regarding cryoprotectant removal (Indirect) or not (Direct). The embryo quality was classified as embryos of degrees I (excellent or good), II (regular), III (poor) and IV (dead or degenerate). It was also verified the homogeneity of mass, occurrence of embryonic mass retraction and rupture of pellucid zone. The results were expressed as percentages and were subjected to Chi-square test with P < 0.05. The embryos vitrified in the presence of sucrose had lower proportions of lower-quality embryos after warming (22.20 vs. 44.50%), higher percentages of homogeneous embryos after warming (63.89 vs. 38.89 %) while concerning other parameters there was no difference between these groups. It can be concluded that the addition of 0.4 M sucrose during vitrification improves the embryo quality.</p>

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Prevalence and risk factors of apical periodontitis in endodontically treated teeth in a selected population of Brazilian adults

Brazilian Dental Journal ◽

10.1590/s0103-64402008000100006 ◽

2008 ◽

Vol 19 (1) ◽

pp. 34-39 ◽

Cited By ~ 34

Author(s):

Carlos Estrela ◽

Cláudio Rodrigues Leles ◽

Augusto César Braz Hollanda ◽

Marcelo Sampaio Moura ◽

Jesus Djalma Pécora

Keyword(s):

Risk Factors ◽

Confidence Intervals ◽

Odds Ratio ◽

Apical Periodontitis ◽

Endodontic Treatment ◽

Technical Quality ◽

Endodontically Treated Teeth ◽

Chi Square ◽

Chi Square Test

The aim of this study was to assess the prevalence and risk factors of apical periodontitis in endodontically treated teeth in a selected population of Brazilian adults. A total of 1,372 periapical radiographs of endodontically treated teeth were analyzed based on the quality of root filling, status of coronal restoration and presence of posts associated with apical periodontitis (AP). Data were analyzed statistically using odds ratio, confidence intervals and chi-square test. The prevalence of AP with adequate endodontic treatment was low (16.5%). This percentage dropped to 12.1% in cases with adequate root filling and adequate coronal restoration. Teeth with adequate endodontic treatment and poor coronal restoration had an AP prevalence of 27.9%. AP increased to 71.7% in teeth with poor endodontic treatment associated with poor coronal restoration. When poor endodontic treatment was combined with adequate coronal restoration, AP prevalence was 61.8%. The prevalence of AP was low when associated with high technical quality of root canal treatment. Poor coronal restoration increased the risk of AP even when endodontic treatment was adequate (OR=2.80; 95%CI=1.87-4.22). The presence of intracanal posts had no influence on AP prevalence.

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Radiographic analysis of 1000 cast posts in Sergipe state, Brazil

Revista de Odontologia da UNESP ◽

10.1590/1807-2577.02517 ◽

2017 ◽

Vol 46 (5) ◽

pp. 255-260

Author(s):

Caroline Garcez MENDONÇA ◽

José Rogério Vieira de ALMEIDA ◽

Wilton Mitsunari TAKESHITA ◽

Fábio MARTINS ◽

Monica Silveira PAIXÃO

Keyword(s):

Root Canal ◽

Endodontically Treated Teeth ◽

Chi Square ◽

Root Canal Filling ◽

Cast Metal ◽

Restorative Treatment ◽

Se Brazil ◽

Chi Square Test ◽

Metal Post

Abstract Introduction Endodontically treated teeth with extensive coronary destruction require posts and cores to enable prosthetic restoration. Despite the increasing use of prefabricated posts, cast metal posts and cores are still widely used. The quality of the latter is important for the longevity of restorative treatment, and failure can occur if the fundamental principles are not followed. Objective To radiographically evaluate the prosthetic principles of 1000 cast metal post-and-core restorations performed in single-rooted teeth and their coherence with the principles used for their confection. Material and method Digital periapical radiographs of 1000 endodontically treated, single-rooted teeth with cast metal posts and cores were selected from the collection of a radiology clinic (Centro de Imagem, Aracaju/SE, Brazil). The images were analyzed using a measurement software (ImageJ, USA) in accordance with the fundamental prosthetic principles: length and diameter of the post, ratio between post and bone crest, contiguity of post to the root canal, gap between post and the remaining root canal filling, amount of remaining root canal filling, and absence of periapical lesion. The data were qualitatively analyzed, classified into ideal and not ideal, and submitted to the chi-square test (α=0.05). Result Only 6.7% of the cast metal posts analyzed were satisfactorily fabricated. Conclusion Many prosthetic criteria are neglected during the manufacturing of cast metal post and cores, resulting in inadequate work that may compromise the longevity of restorative treatments.

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Performance of Abbreviated Protocols Versus Unenhanced MRI in Detecting Occult Breast Lesions of Mammography in Patients with Dense Breasts

10.21203/rs.3.rs-1122604/v1 ◽

2021 ◽

Author(s):

Suhong Zhao ◽

Peipei Chen ◽

Guangrui Shao ◽

Baijie Li ◽

Huikun Zhang ◽

...

Keyword(s):

Reading Time ◽

Area Under The Curve ◽

Lesion Size ◽

Lower Sensitivity ◽

Chi Square ◽

Dense Breast Tissue ◽

Negative Findings ◽

Chi Square Test ◽

The Difference ◽

Sensitivity Specificity

Abstract Objective: To assess the diagnostic ability of abbreviated protocols of MRI (AP-MRI) compared with unenhanced MRI (UE-MRI) in mammographically occult cancers in patients with dense breast tissue.Materials and Methods: The retrospective analysis consisted of 102 patients without positive findings on mammography who received preoperative MRI full diagnostic protocols (FDP) between January 2015 and December 2018. Two breast radiologists read the UE, AP, and FDP. The interpretation times were recorded. The comparisons of the sensitivity, specificity and area under the curve of each MRI protocol, and the sensitivity of these protocols in each subgroup of different size tumors used the Chi-square test. The paired sample t-test was used for evaluating the difference of reading time of the three protocols.Results: Among 102 women, there were 68 cancers and two benign lesions in 64 patients and 38 patients had benign or negative findings. Both readers found the sensitivity and specificity of AP and UE-MRI were similar (p>0.05), whereas compared with FDP, UE had lower sensitivity (Reader 1/Reader 2: p=0.023, 0.004). For different lesion size groups, one of the readers found that AP and FDP had higher sensitivities than UE-MRI for detecting the lesions ≤10 mm in diameter (p=0.041, p=0.023). Compared with FDP, the average reading time of UE-MRI and AP was remarkably reduced (p < 0.001).Conclusion: AP-MRI had more advantages than UE-MRI to detect mammographically occult cancers, especially for breast tumors ≤10 mm in diameter.

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Abstract 14721: Impact of Covid-19 on Cardiology Consultation in Tertiary Care Hospital of a Developing Country

Circulation ◽

10.1161/circ.142.suppl_3.14721 ◽

2020 ◽

Vol 142 (Suppl_3) ◽

Author(s):

ghufran adnan ◽

Osman Faheem ◽

Maria Khan ◽

Pirbhat Shams ◽

Jamshed Ali

Keyword(s):

Emergency Department ◽

Tertiary Care ◽

Reduction Rate ◽

Care Hospital ◽

Chi Square ◽

Coronary Syndrome ◽

Significant Difference ◽

Drastic Increase ◽

Chi Square Test ◽

The Difference

Introduction: COVID-19 pandemic has overwhelmed the healthcare system of Pakistan. There has been observation regarding changes in pattern of patient presentation to emergency department (ED) for all diseases particularly cardiovascular. The aim of the study is to investigate these changes in cardiology consultations and compare pre-COVID-19 and COVID-19 era. Hypothesis: There is a significant difference in cardiology consultations during COVID era as compared to non-COVID era. Method: We collected data retrospectively of consecutive patients who visited emergency department (ED) during March-April 2019 (non-COVID era) and March-April 2020 (COVID era). Comparison has been made to quantify the differences in clinical characteristics, locality, admission, type, number, and reason of Cardiology consults generated. Results: We calculated the difference of 1351 patients between COVID and non-COVID era in terms of cardiology consults generated from Emergency department, using Chi-square test. Out of which 880 (59%) are male with mean age of 61(SD=15). Analysis shows pronounced augmentation in number of comorbidities [Hypertension(6%), Chronic kidney disease (6%), Diabetes (5%)] but there was 36% drop in total cardiology consultations and 43% reduction rate in patient’s ED visit from other cities during COVID era. There was 60% decrease in acute coronary syndrome presentation in COVID era, but fortuitously drastic increase (30%) in type II myocardial injury has been noted. Conclusion: There is a remarkable decline observed in patients presenting with cardiac manifestations during COVID era. Lack in timely care could have a pernicious impact on outcomes, global health care organizations should issue directions to adopt telemedicine services in underprivileged areas to provide timely care to cardiac patients.

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