Percolation Processes. I. Low‐Density Expansion for the Mean Number of Clusters in a Random Mixture

1966 ◽  
Vol 7 (9) ◽  
pp. 1573-1581 ◽  
Author(s):  
J. W. Essam ◽  
M. F. Sykes
Keyword(s):  
Low Density ◽  
Number Of Clusters ◽  
Random Mixture ◽  
The Mean ◽  
Percolation Processes ◽  
Density Expansion

A multicenter prospective hospital-based cohort study on the efficacy and safety of pitavastatin.

2020 ◽  
Vol 17 ◽  
Author(s):  
Abdullah Shehab ◽  
Asim Ahmed Elnour ◽  
Akshaya Srikanth Bhagavathula ◽  
Joseph Pulavelil Kurian ◽  
Gazi Hassan ◽  
...  
Keyword(s):  
Cohort Study ◽  
Adverse Events ◽  
United Arab Emirates ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Low Density ◽  
Efficacy And Safety ◽  
Onset Diabetes ◽  
The Mean ◽  
New Onset

Aims: We aim to investigate the efficacy and safety of pitavastatin 4 mg in a population of people living in the United Arab Emirates (UAE). Background: Pitavastatin is a member of the HMG-CoA reductase inhibitors family which was approved for use in adult subjects with primary hyperlipidemia or mixed dyslipidemia. To date, no published studies have assessed the efficacy and safety of pitavastatin in the United Arab Emirates. Objective: The main objective of the current study was to investigate the efficacy and safety of pitavastatin in subjects with dyslipidemia for primary prevention of cardiovascular diseases based on total cardiovascular risk. Methods: This was a multicentre (four private hospitals) prospective cohort study to analyze data on the use of pitavastatin for dyslipidemia in adult outpatients in Abu Dhabi and Dubai emirates, United Arab Emirates. We have followed-up the clinical profiles of subjects in four hospitals for six-weeks during the period from June 2015 to June 2017. Efficacy was based on the evaluation of the mean (± standard deviation) change in low-density lipoprotein cholesterol between baseline and week six after the initiation of pitavastatin therapy. Safety was reported as the incidence of adverse events occurred with the use of pitavastatin and the development of new-onset diabetes. Results: A total of 400 subjects who were receiving pitavastatin 4 mg were included. The mean age of subjects was 50.7 ±10.8 years, of these 79.0% were males. At the baseline, the mean level of total cholesterol was 185.4 ±41.5 mg/dL, low density lipoprotein was 154.9 ±48.55 mg/dL, high-density lipoprotein cholesterol was 40.5 ±11.23 mg/dL and fasting blood glucose was 115.0 (±16.63) mg/dl. At the end of six weeks, low density lipoprotein levels significantly decreased to 112.09 ±41.90 mg/dl (standard mean difference [SMD] (-42.8%), 95% CI: -42.88 [-49.17 to -36.58] mg/dl, P <0.001), while high density lipoprotein levels improved (SMD, 95% CI: 1.77% [0.25 to 3.28] mg/dl, P <0.022). There were 55 subjects (13.7%) reported various adverse events such as myalgia (7.5%), sleep disorders (2.5%), and myopathy (2.2%). Furthermore, 4 (1.0%) have had developed new-onset diabetes post six-weeks of initiation of pitavastatin therapy. Conclusion: Pitavastatin 4 mg had howed robust efficacy in reducing LDL-C levels and improving HDL-C levels in subjects with dyslipidemias. The use of pitavastatin was associated with a low discontinuation rate, fewer adverse events, and very limited cases of new-onset diabetes.

scholarly journals Effect of Whole Quail (Coturnix japonica) Egg Consumption on some Reproductive Parameters and Lipid Profile of Male Albino Rat (Rattus norvegicus)

2017 ◽  
Vol 9 (3) ◽  
pp. 315-320 ◽  
Author(s):  
Chidozie N. OKOYE ◽  
Samuel O. EKERE ◽  
Onyinyechukwu A. AGINA ◽  
Ikechukwu J. UDEANI ◽  
Chukwunonso K. EZEASOR
Keyword(s):  
Lipid Profile ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Control Group ◽  
Low Density ◽  
Epididymal Sperm ◽  
Treatment Groups ◽  
Egg Consumption ◽  
Group A ◽  
The Mean

The present study evaluated the effect of whole egg consumption on the liver, testes, cauda epididymal sperm reserve and lipid profile of male rats. These evaluations were carried out on adult twenty (20) male albino rats, which were randomly selected into four groups of 5 rats each, designated groups A, B, C and D. Group A was the control group and received only equivalent volume of distilled water, while groups B, C and D received 0.25mg/kg, 0.5mg/kg; and 1.0mg/kg body weight of the quail egg respectively. Standard procedures were carried out in the tissue processing, cauda epididymal sperm reserve and in lipid profile determinations. On days 35 and 49, the mean serum total cholesterol value of group D was significantly lower than that of the control group. On day 35, the mean serum low density lipoprotein and high density lipoprotein (LDL and HDL cholesterol) values of all the treatment groups were significantly lower and higher than that of the control group, respectively. However, on days 49 and 63, the mean serum very low density lipoprotein (VLDL cholesterol) and triglyceride values of all the treatment groups were significantly higher than that of the control group. A significant increase in cadual epididymal sperm count (CESR) was recorded on day 63 at the mid and high doses. No obvious pathological lesions were observed in the histomorphology of the testes and liver when compared to the control. Therefore, whole quail egg consumption caused an increase in serum triglyceride and very low density lipoprotein concentration, and also improved fertility. In other words, prolonged consumption of quail egg should be done with caution as it may predispose one to cardiovascular disease.

scholarly journals Density Profiles of Clusters of Galaxies

1977 ◽  
Vol 4 (1) ◽  
pp. 246-251
Author(s):  
Neta A. Bahcall
Keyword(s):  
High Density ◽  
Low Density ◽  
Clusters Of Galaxies ◽  
Surface Distribution ◽  
Density Profiles ◽  
Number Of Clusters

Data on the surface distribution of galaxies in a number of clusters has been given by several authors (see, for example, Shane & Wirtanen 1954; Zwicky 1956, 1957; Omer, Page & Wilson 1965; Clark 1968; Noonan 1971, 1974; Bahcall 1971, 1972a, b, 1973a, b, 1974, 1975; Rudnicki 1963; Rudnicki & Baranauska 1966a, b; Rood et al. 1972; Rood & Sastry 1972; Oemler 1974; Austin & Peach 1974a, b; Chincarini & Rood 1975, 1976; and references quoted therein). The distributions show a relatively smooth fall-off from a high density at the center of the cluster to a low density tail at the outskirts of the cluster. Secondary maxima or subclustering are sometimes superimposed on an otherwise smooth and monotonic profile.

scholarly journals Mapping similarities in temporal parking occupancy behavior based on city-wide parking meter data

2018 ◽  
Vol 1 ◽  
pp. 1-5
Author(s):  
Fabian Bock ◽  
Karen Xia ◽  
Monika Sester
Keyword(s):  
Similarity Measure ◽  
Historical Data ◽  
Parking Space ◽  
Number Of Clusters ◽  
Occupancy Patterns ◽  
Silhouette Index ◽  
The Mean ◽  
Occupancy Behavior ◽  
Maximum Occupancy ◽  
Repetitive Pattern

The search for a parking space is a severe and stressful problem for drivers in many cities. The provision of maps with parking space occupancy information assists drivers in avoiding the most crowded roads at certain times. Since parking occupancy reveals a repetitive pattern per day and per week, typical parking occupancy patterns can be extracted from historical data.<br> In this paper, we analyze city-wide parking meter data from Hannover, Germany, for a full year. We describe an approach of clustering these parking meters to reduce the complexity of this parking occupancy information and to reveal areas with similar parking behavior. The parking occupancy at every parking meter is derived from a timestamp of ticket payment and the validity period of the parking tickets. The similarity of the parking meters is computed as the mean-squared deviation of the average daily patterns in parking occupancy at the parking meters. Based on this similarity measure, a hierarchical clustering is applied. The number of clusters is determined with the Davies-Bouldin Index and the Silhouette Index.<br> Results show that, after extensive data cleansing, the clustering leads to three clusters representing typical parking occupancy day patterns. Those clusters differ mainly in the hour of the maximum occupancy. In addition, the lo-cations of parking meter clusters, computed only based on temporal similarity, also show clear spatial distinctions from other clusters.

scholarly journals Hypertriglyceridemia is associated with the incidence of preeclampsia

2018 ◽  
pp. 218-221
Author(s):  
Intje S Dahlan ◽  
Mardiah Tahir ◽  
Efendi Lukas ◽  
St. Maisuri T Chalid
Keyword(s):  
High Density Lipoprotein ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Mean Value ◽  
High Density ◽  
University Teaching ◽  
Low Density ◽  
Hospital Department ◽  
Exact Test ◽  
The Mean

Abstract Objective: to find out  the correlation between lipid profille at trimester II of pregnancy and the incidence.of preeclampsia Method : The research  was conducted in the Polyclinic of Hasanuddin University Teaching Hospital, Department of Obstetrics and Gynecology of the Faculty of Medicine, and it network in Makassar city from March, 2015 through March, 2016. The research used was the prospective cohort design. Results : The examination of the lipid levels of 115 pregnant mothers, aged 24-28 weeks. The mothers were then observed whether they experienced preeclampsia up to the time they gave birth or not. In the end, 8 subjects (6.9%) experienced preeclampsia and 107 subjects (93.1%) have no preeclampsia. The statistical analyses used Fisher’s Exact test and Mann Whitney test. The research results indicated that the mean value of the total cholesterol and Low Density Lipoprotein (LDL) was higher in the preeclampsia group compared to the non-preeclampsia group: 267.37 ± 64.12 : 238 ± 37.98; 177.38 ± 55.38 : 157.24 ± 35.08 (p>0.05). The mean value of High Density Lipoprotein (HDL) was lower in the preeclampsia group compared to the non-preeclampsia group: 64.75 ± 14.64 : 67.86 ± 16.72 (p>0,05). The mean value of trigliserida in preeclampsia group was significantly higher (19,5%) compared thanin the non-preeclampsia group: 260.12 ± 58.86 vs 209.14 ± 65.10 (p=0,027). Conclusion : The hypertrigliseridemia was correlated with the preeclampsia incidence. Keywords:preeclampsia, lipid profile, trimester II of pregnancy   Abstrak Tujuan: mengetahui hubungan antara profil lipid kehamilan trimester II dengan kejadian preeklamsia. Metode : Penelitian dilaksanakan di Poliklinik RS jejaring pendidikan Departemen Obstetri dan Ginekologi Fakulltas Kedokteran Universitas Hasanuddin dan Poliklinik Kesehatan Ibu dan Anak di beberapa Puskesmas Kota Makassar selama Maret 2015 sampai dengan Maret 2016. Rancangan penelitian yang digunakan adalah prospektif  kohort. Hasil: dari 115 ibu hamil dilakukan pemeriksaan  kadar lipid, 115 ibu hamil pada usia kehamilan 24 – 28 minggu, kemudian diamati apakah subyek mengalami preeklamsia hingga proses persalinan. Terdapat delapan subyek (6,9%) berkembang menjadi preeklampsia dan 107 subyek tidak preeklamsia. Data dianalisis secara statistik dengan menggunakan uji Fisher’s Exact dan uji Mann Whitney. Hasil penelitian menunjukkan bahwa nilai mean kolesterol total dan Low Density Lipoprotein (LDL) lebih tinggi pada kelompok preeklampsia dibandingkan kelompok tidak preeklamsia, yaitu 267,37 ± 64,12 : 238,01 ± 37,98; 177,38 ± 55,38 : 157,24 ± 35,08 (p>0,05). Nilai mean High Density Lipoprotein (HDL) lebih rendah pada kelompok preeklamsia dibandingkan tidak preeklamsia yaitu 64,75 ± 14,64 : 67,86 ± 16,72 (p>0,05). Nilai mean trigli seri daripada kelompok preeklamsia secara signifikan lebih tinggi 19,5 % dibandingkan kelompok tidak preeklamsia, yaitu 260,12 ± 58,86 : 209,14 ± 65,10 (p=0,027). Kesimpulan : Hiper trigli seridemia berhubungan dengan kejadian preeklamsia. Kata kunci : preeklamsia, profil lipid, kehamilan trimester II    

scholarly journals ‘Scraggy’ dark haloes around bulge-less spiral

2019 ◽  
Vol 486 (3) ◽  
pp. 3697-3701 ◽  
Author(s):  
I D Karachentsev ◽  
V E Karachentseva
Keyword(s):  
Total Mass ◽  
Spiral Galaxies ◽  
Stellar Mass ◽  
Low Density ◽  
Mean Square ◽  
Velocity Difference ◽  
Orbital Mass ◽  
Local Volume ◽  
The Mean ◽  
K Band

ABSTRACT We use a sample of 220 face-on bulge-less galaxies situated in the low-density environment to estimate their total mass via orbital motions of supposed rare satellites. Our inspection reveals 43 dwarf companions having the mean projected separation of 130 kpc and the mean-square velocity difference of 96 km s−1. For them, we obtain the mean orbital-mass-to-K-band luminosity ratio of 20 ± 3. Seven bulge-less spirals in the Local Volume are also characterized by the low mean ratio, Morb/LK = 22 ± 5. We conclude that bulge-less Sc–Scd–Sd galaxies have poor dark haloes, about two times lower than that of bulgy spiral galaxies of the same stellar mass.

Determination of high-density lipoprotein phospholipids in serum.

1980 ◽  
Vol 26 (9) ◽  
pp. 1275-1277 ◽  
Author(s):  
Y Yamaguchi
Keyword(s):  
High Density Lipoprotein ◽  
Density Lipoprotein ◽  
Mean Value ◽  
High Density ◽  
High Density Lipoproteins ◽  
Low Density ◽  
Very Low Density Lipoproteins ◽  
Color Development ◽  
The Mean

Abstract I describe a method for measuring high-density lipoprotein phospholipids. Magnesium chloride and dextran sulfate are used to precipitate all low-density and very-low-density lipoproteins. The supernate contains only high-density lipoproteins, the phospholipid concentration of which is determined by an enzymic method. The precision of the method (CV) is 2.35% (10 repeated assays), and the mean value for HDL-phospholipids was 1006 (SD 248) mg/L for 30 apparently healthy subjects. I used electrophoresis and enzymic color development to confirm the presence of HDL-phospholipids. Results are compared with those obtained by an ultracentrifugation method.

scholarly journals Catalogue of Clusters that are Members of Superclusters

1983 ◽  
Vol 104 ◽  
pp. 185-186
Author(s):  
M. Kalinkov ◽  
K. Stavrev ◽  
I. Kuneva
Keyword(s):  
Standard Deviation ◽  
Correlation Coefficient ◽  
The Other ◽  
Clusters Of Galaxies ◽  
Number Of Clusters ◽  
Abell Clusters ◽  
The Mean ◽  
Abell Cluster ◽  
Image Position

An attempt is made to establish the membership of Abell clusters in superclusters of galaxies. The relation is used to calibrate the distances to the clusters of galaxies with two redshift estimates. One is m10, the magnitude of the ten-ranked galaxy, and the other is the “mean population,” P, defined by: where p = 40, 65, 105 … galaxies for richness groups 0, 1, 2 …, and r is the apparent radius in degrees given by: The first iteration for redshift, z1, is obtained from m10 alone: The standard deviation for Eq. (1) is 0.105, the number of clusters with known velocities is 342 and the correlation coefficient between observed and fitted values is 0.921. With zi from Eq. (1), we define Cartesian galactic coordinates Xi = Rih−1 cosBi cosLi, Yi = Rih−1 cosBi sinLi, Zi = Rih−1 sinBi for each Abell cluster, i = 1, …, 2712, where Ri is the distance to the cluster (Mpc), and Ho = 100 h km s−1 Mpc−1.

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