Toward a Universal Frequency of Occurrence Distribution for Tsunamis: Statistical Analysis of a 32‐Year Bottom Pressure Record at Axial Seamount

2020 ◽  
Vol 47 (10) ◽  
Author(s):  
Isaac V. Fine ◽  
Richard E. Thomson ◽  
William W. Chadwick ◽  
Christopher G. Fox
2019 ◽  
Vol 75 (01) ◽  
pp. 6178-2019
Author(s):  
RAFAŁ SAPIERZYŃSKI ◽  
MICHAŁ CZOPOWICZ ◽  
DIANA STOPKA

Perivascular wall tumors (PWTs or haemangiopericytomas) are common in dogs, and they are clinically important in veterinary oncology, but there is no data on the occurrence of these tumors in dogs in Poland. The aim of the present study was an epidemiological analysis of canine perivascular wall tumors. The study included 136 dogs with recognized PWTs (whose frequency of occurrence was the same in females and males). The mean age of the dogs was 9.8±3.0 years, with no statistically significant difference between sexes. Among the dogs, 40.7% were mongrels, and 59.3% were purebred. Among the purebred dogs, 21 (26.3%) were German Shepherds, 17 (21.3%) were Boxers, 5 (6.3%) were Doberman pinchers and Rottweilers. Statistical analysis revealed that four breeds were predisposed to perivascular wall tumors in comparison to the general dog population: German Shepherds, Boxers, Doberman pinchers and Rottweilers. Moreover, large-breed (but not giant-breed) dogs were shown to be predisposed to PWTs. Tumors were located in the skin or subcutis of the entire body, mostly on the legs, more seldom on the trunk or the head. The most typical location for PWTs was the elbow area (11% of all cases).


1976 ◽  
Vol 19 (3) ◽  
pp. 458-466 ◽  
Author(s):  
W. H. Moore ◽  
John Burke ◽  
Chris Adams

This study investigated the effects of stimulability on the articulation of cluster nested /s/ in high- and low-frequency clusters and words. A good stimulability group and a poor stimulability group of /s/-defective seven-year-old children were investigated. Statistical analysis did not reveal significant differences between the articulatory performances of the two groups on words or clusters occurring with high or low frequency. Subjects in the good stimulability group obtained significantly fewer errors on the test stimuli than did subjects in the poor stimulability group. Correlational analyses indicated that stimulability was positively correlated with correct numbers of /s/ productions in both clusters and words occurring with both high and low frequency. Subjects' spontaneous /s/ errors on the Templin-Darley screening test were not found to be correlated with their stimulability scores or their imitative /s/ productions in words and clusters occurring with high or low frequencies.


1990 ◽  
Vol 55 (2) ◽  
pp. 225-230 ◽  
Author(s):  
Kathryn M. Yorkston ◽  
David R. Beukelman ◽  
Kathleen Smith ◽  
Robert Tice

The three primary purposes of this project are (a) to identify those word sequences that occur frequently across a group of 10 linguistically intact augmented communicators, (b) to determine the communality with which the various augmented communicators use specific word sequences, and (c) to evaluate the usefulness of word sequences in providing keystroke savings for users of augmentative and alternative communication (AAC) devices as compared to letter-by-letter spelling or single-word retrieval. Communication samples were collected for 14 consecutive days from 10 subjects who used AAC devices. These samples were analyzed with custom software to determine the frequency of occurrence of one-, two-, three-, four-, and five-word sequences. The results revealed that three-, four-, and five-word sequences occurred very infrequently within and across communication samples. Two-word sequences occurred much more frequently than the longer sequences. The authors concluded that clinicians should continue to encourage linguistically intact clients to select long messages (three words or more) for their AAC devices based on message content and the urgency with which messages need to be delivered rather than relying exclusively on statistical analysis. However, statistically based multiword analysis should not be abandoned. Frequently occurring one- and two-word sequences may be an important source of messages that will increase communication efficiency when stored and retrieved in an AAC device.


2020 ◽  
Vol 12 (4) ◽  
pp. 455-474

This study investigates /dˤ/-variations in Saudi Arabian newscasting under different in-word positions and different phonetic environments in 20 randomly selected newscasts. The study provides a thorough quantitative analysis of the frequency of occurrence of the two coexisting variants [dˤ] and [ðˤ], and concludes that neither in-word position, nor the phonetic environment is able to predict the phonetic behavior of the sound. In a total of 734 /dˤ/-lexical items, the sound was found to be properly realized as [dˤ] in 519 instances (70.7%), and improperly realized as [ðˤ] in 215 tokens (29.3%). The very same percentages were found to quantify the sound variations under each linguistic condition, and the statistical analysis used reveals the irrelevance of each condition to predicting the sound variations. Also, the sound proves to be unpredictable in content and stressed words. Keywords: Modern Standard Arabic, phonological variations, [dˤ] and [ðˤ] variants, linguistic conditioning.


2021 ◽  
Author(s):  
Vladimir Zinchenko ◽  
Alexander Ivanov ◽  
João Tunga Félix

<p>To determine a diamond grade (ct/t) in the Lunda district kimberlites using the chemical composition of the KIM (indicator minerals) frequency of occurrence of their cluster groups (CG) we performed statistical analysis of the chemical composition of pyropes (3478 grains) of Cr-diopsides (714) and picroilmenites (1582) of the 6 kimberlite diamond deposits. Classification procedures of cluster and correlation – factor analysis were used (Ivanov, 2017). Significant correlation coefficients were determined between the variations of KIM compositions and diamond content in kimberlites. Figure 2 shows the distribution of diamond contents in 6 kimberlite pipes, correlated with the distribution of pyropes G10 (Dawson et al., 1975), chromium diopsides CG S6, as well as CG of picroilmenites – 12b and P12-16 in their frequency of occurrence, the interpretation of which is reduced to the following conclusions. The proportions of pyropes CG G10 in kimberlites of 5 pipes control the linear growth (R<sup>2</sup>=0.97) of the diamond content in pipes to the center of the Saurimo structure, excluding the CAT-E42 pipe. With a relatively high diamond grade, the proportion of  G10 in this pipe is low, which may be related to the extremely low quality of its diamonds. In kimberlites. This indicator is typical for the Catoca and Luele pipes, with the maximum proportions of low-ferrous picroilmenites (11.0% and 13.9%). In the NE direction, the conditions for the preservation of diamonds in kimberlites decrease, which affects their low diamond grade (0.2-0.4 ct / t), which decreases exponentially (R<sup>2</sup>=0.98) with an increase in the TiO<sub>2</sub> content in picroilmenites. The proportion of CG S6 Cr-diopsides belonging to the high-pressure variety of the deep mantle lithosphere (coesite facies) (Sobolev, 1971) increases in the kimberlites of the central part of the Saurimo structure to 15-32% and controls the high diamond content of the Catoca, CAT-E42 and Luele pipes (Fig. 1). The established regularities of changes in the frequency of occurrence of CG KIMs in the NE-SW direction in the Lunda kimberlite region confirm the regional pyrope trend of N. V. Sobolev's diamond content and other KIMs correlations with the diamond content of kimberlites in this region. They also meet the "rule of V. A. Milashev" on reducing the diamond content of kimberlites to the periphery of regional structural units of kimberlite provinces (Zinchenko et al., 2016).</p><p>Sobolev N.V. Mineralogical criteria of diamond-bearing kimberlites. Geology and geophysics. No. 3. 1971, 70-80.</p><p>Dawson J.B., Stephens W.E. Statistical classification of garnets from kimberlites and xenoliths.J. Geol. 1975. 83, 589-60</p><p>Gurney D. D., Moore R. O. Geochemical correlation between kimberlite minerals and diamonds of the Kalahari Craton. 1994.,12–24.</p><p>Ivanov A. S. Statistical analysis of indicator minerals of kimberlites. Proceedings of the XIII All-Russian Fersman Session. KSC RAS.  Apatity. 2017,  172 -181.</p><p>Zinchenko, V., Felix J. T., Francisco J. Diamondiferous trend of the kimberlites in the Lunda region (Angola)//35th International Geological Congress Abstracts. Cape Town. South Africa. 2016.</p><p><img src="https://contentmanager.copernicus.org/fileStorageProxy.php?f=gnp.0e3eea868d0066419941161/sdaolpUECMynit/12UGE&app=m&a=0&c=7ecb3e7dd388e9edb98f52df0a9411a0&ct=x&pn=gnp.elif&d=1" alt="" width="581" height="346"></p><p><img src="https://contentmanager.copernicus.org/fileStorageProxy.php?f=gnp.960b89858d0069888941161/sdaolpUECMynit/12UGE&app=m&a=0&c=cdf3e97fdd49a7a10a2127127c90c0ff&ct=x&pn=gnp.elif&d=1" alt="" width="590" height="127"></p><p> </p>


2019 ◽  
Vol 40 (6Supl3) ◽  
pp. 3729 ◽  
Author(s):  
Laís Gabrielly Freitas Lima ◽  
Cláudia Peixoto Bueno ◽  
Lucas Matheus Rodrigues ◽  
Lídia Mendes de Aquino Gontijo ◽  
Diogo Alves da Costa Ferro ◽  
...  

The quality of meat is influenced by several aspects, among which post-vaccination abscesses and bruises stand out as primary factors for the condemnation of carcasses. However, economic losses resulting from improper handling practices can severely compromise the profitability of both the packing plant and the producer. The objective of this study was to estimate the frequency of occurrence of abscesses and bruises in carcasses of animals slaughtered in a packing plant and analyze the economic losses generated by them. The number of animals examined was determined according to the slaughter flow in the packing plant (10-20% of animals/day). Data pertaining to region and number of bruises, abscess location, weight of excised portions and distance from the municipalities of origin of the animals were collected and evaluated by descriptive statistical analysis. The occurrence of lesions was 78% trauma- and 45% abscess-derived. The presence of these lesions resulted in economic losses, representing a depreciation of BRL 2.99/animal in the profit obtained by the cattle farmer. A comparison between the “sex classes” and “bruising” factors revealed that the females had higher occurrence and distribution of bruises and abscesses than uncastrated and castrated males. Bruises were more frequent in the hindquarter region, regardless of the distance, while abscesses were restricted to the forequarter. The weight of discarded tissues was higher on farms less than 200 km away from the packing plant; however, these results were influenced by the number of animals evaluated in the group.


2021 ◽  
Vol 8 (8) ◽  
pp. 297-301
Author(s):  
Ashwini Singh ◽  
Rupesh Masand ◽  
Chaman Ram Verma ◽  
Yograj Khinchi

Background: Short stature is one of the most common referrals to pediatric endocrinology clinics. Approximately 3% of children in any population are found to be short. Aim: This study aims to determine the etiology of short stature and their frequency of occurrence in 2–18 years old rural pediatric population and to classify the patients with short stature using anthropometric measurements. Materials and Methods: A total of 400 patients (age: 2–18 years) were diagnosed with short stature and admitted in pediatric ward. After meticulous history collection and complete physical examination, relevant investigations were performed in all the study subjects. Appropriate statistical analysis was carried out with the collected data. Results: Out of 400 study subjects, 70.50% were boys (male: female=2.33:1). Majority (n=241, 60.5%) of the affected children were in the age group of 2–<6 years and 7–<10 years. Of the 400 study subjects, 95% of cases (n=380) were classified as having proportionate short stature and the rest (n=20, 5%) had disproportionate short stature. Undernutrition (n=117, 29.25%) and familial short stature (n=90, 22.50%) were the leading causes of short stature. Conclusion: The current study helped to determine the etiological profile of short stature in children of adjoining rural population and in devising appropriate strategies for management and prevention.


2021 ◽  
Author(s):  
Mercy Nasimiyu Kundu ◽  
Hans Komakech ◽  
George Lugomela

Abstract Microplastics and macroplastics have been reported in different urban rivers and agricultural soil across the globe. However, the interlink between them has not been previously assessed therefore, the present study evaluated the relationship between macro-and microplastics in the water columns and sediments in riverine, riverbanks, and soils from irrigated farms in Arusha, Tanzania. Detached pieces from macroplastics and suspected particles of microplastics from the samples were analyzed using the total attenuated reflectance - Fourier transform Infrared spectroscopy, where statistical analysis showed that the number of microplastics in the sediments was higher than in the water columns and that in irrigated farms than in the riverine by a magnitude of 4. Besides, the numbers of microplastics and macroplastics in the irrigation farms were exponentially-related while the macroplastics from the riverbanks had an inverse relationship with the rivers’ profile elevation. Polyethylene was the dominating macroplastic in the riverbanks and irrigated farms with a 100% frequency of occurrence while polystyrene was abundant in all samples of microplastics. However, the irrigated farms adjacent to canals had a greater number of microplastics and macroplastics. In generally, the findings showed a similar trend of plastic distribution in urban rivers and irrigated farms, suggesting an interaction between them.


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