نتایج جستجو برای: آزمون ناپارامتری kruskal wallis
تعداد نتایج: 130514 فیلتر نتایج به سال:
اهمیت آب در تمام جنبه های زندگی انسان، گیاهان و جانوران واضح و غیر قابل انکار است. آب با کیفیت مناسب برای مصارف روزمره، یکی از پرارزش ترین منابع طبیعی است که متاسفانه به علل رشد بی رویه جمعیت در کشورهای در حال توسعه و مناطق خشک و نیمه خشک و پدیده صنعتی شدن و شهری شدن جوامع انسانی کمیاب شده است. لذا یکی از چالش های مهم در جهان کنونی رقابت برای دسترسی به منابع آب می باشد. تغییرات آب و هوایی، توسع...
BACKGROUND Interstitial lung disease (ILD) is a large group of diseases, including hypersensitivity pneumonitis (HP), idiopathic pulmonary fibrosis (IPF) and sarcoidosis. OBJECTIVE In this study, we aimed to identify bronchoalveolar lavage fluid (BALF) biomarkers which could be contributive for HP diagnosis. METHODS We analyzed 39 BALF samples from 12 ILD patients with sarcoidosis, 11 with ...
AIM Maspin is a unique serine proteinase inhibitor which has tumor suppressor activity. The aim of the present study was to investigate the role of maspin in ampullary adenocarcinomas, its correlation with apoptosis and its value as a prognostic marker. PATIENTS AND METHODS Twenty-three cases of ampulla of Vater adenocarcinoma were collected from archival material. For each sample, maspin, M3...
Specific statistical tests are used when the null hypothesis (H0) is to be tested using nonparametric nominal or ordinal data. With nominal data, experimental results are expressed by proportions or frequencies. Chi-square or related tests (the Fisher's exact test or the rows by columns test) are appropriate for testing H0 with nominal data. Ordinal data permit arrangement of statistical result...
This prospective, randomized study compared postoperative pain scores, morphine consumption and length of stay in 95 adults who underwent elective lumbar spine surgery via a posterior incision. Immediately prior to closure the wound was irrigated with triamcinolone 40, 20 or 0 mg. Visual analogue scale pain scores at 24 h after surgery were median 12 (interquartile range 3-24), 15 (6-34) and 33...
In a multi-group experimental design where interest is in a univariate response, the nonparametric Kruskal-Wallis test [Kniskal and Wallis (1952)] provides a potentially more powerful alternative to the parametric one-way analysis of variance when the assumptions of normality are in question. For multivariate response, Puri and Sen (1966) proposed a generalization of the KmskalWallis test that ...
Pembelajaran IPA dikatakan berhasil jika semua tujuan pembelajaran yang telah ditetapkan dapat terpenuhi, ditunjukkan dengan hasil belajar IPA. Hasil dipahami sebagai dari proses mengajar digunakan untuk menentukan atau tidaknya suatu program pembelajaran. Penelitian ini bertujuan mengetahui ada perbedaan capaian siswa kelas VIII pada materi sistem pencernaan. penelitian dijadikan umpan balik b...
OBJECTIVE To analyze the interference of age in the entrance into a public dental care program for infants as well as family behavioral aspects about tooth decay experience in children 0 to 4 years old. METHODS Cross-sectional study involving 465 children who were divided into 3 groups: infants whose mothers joined the program during pregnancy (n=50); infants enrolled in the program during th...
Asthma is considered as one of the most common chronic diseases in the world. As a result of serious physical, social, and psychological complications, asthma can reduce health-related quality of life (HRQoL). The present study was designed to assess the HRQoL including physical health, general health perception, emotional health, psychological health, and social functioning of asthmatic patien...
OBJECTIVES Addition of chlorhexidine has enhanced the antimicrobial effect of glass ionomer cement (GIC) indicated to Atraumatic Restorative Treatment (ART); however, the impact of this mixture on the properties of these materials and on the longevity of restorations must be investigated. The aim of this study was to evaluate the effects of incorporating chlorhexidine (CHX) in the in vitro biol...
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