Effect of temperature and lockdown on daily growth of active cases of COVID-19 in gujarat, western India: a statistical analysis (Preprint)

2020 ◽  
Author(s):  
Bhavin Vasavada
Keyword(s):  
Growth Rate ◽  
Pearson Correlation ◽  
Effect Of Temperature ◽  
Maximum Temperature ◽  
Daily Maximum Temperature ◽  
Daily Maximum ◽  
Western India ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Significant Difference

UNSTRUCTURED Aim of the study: Aim of he study was to analyse correlation of daily maximum temperature on corona virus daily growth rate as well as effect of lockdown on daily growth rate of cases. Materials and Methods: All the data regarding new cases of covid 19 Pandemic in Gujarat was collected from Gujarat health department website., Temperature details were collected from www.accuweather.com. Growth rate was calculated as a percent increase of new cases daily compared to previous day active cases. Relations between trends were calculated from correlation and regression studies. MANNOVA analysis was performed. Results: Total 6625 cases, 4729 active cases and 380 deaths were reported as on 6th May 2020 in Gujarat. Daily maximum temperature was significantly correlated inversely with daily growth rate. (p value= 0.010) with Pearson correlation coefficient =-0.363. Correlation between time since lock down to daily case growth rate was non significant. (p=0.123). Phases of lockdown and growth rates showed significant inverse correlation. (p=0.002). Multivariate ANOVA showed there was statistical significant difference in case growth rate based on daily temperature [p= 0.006 F=4.71] and progression of phases of lockdown (p=0.018, F=3.55). Conclusion: Conclusion increase in temperature has inverse relationship in growth rate in covid 19 pandemic. Lockdown may be useful in decreasing growth.

scholarly journals Effect of temperature and lockdown on daily growth of active cases of COVID-19 in gujarat, western India.- statistical analysis.

2020 ◽  
Author(s):  
BHAVIN Vasavada
Keyword(s):  
Growth Rate ◽  
Pearson Correlation ◽  
Effect Of Temperature ◽  
Maximum Temperature ◽  
Daily Maximum Temperature ◽  
Daily Maximum ◽  
Western India ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Significant Difference

Aim of the study: Aim of he study was to analyse correlation of daily maximum temperature on corona virus daily growth rate as well as effect of lockdown on daily growth rate of cases. Materials and Methods:All the data regarding new cases of covid 19 Pandemic in Gujarat was collected from Gujarat health department website., Temperature details were collected from www.accuweather.com. Growth rate was calculated as a percent increase of new cases daily compared to previous day active cases. Relations between trends were calculated from correlation and regression studies. MANNOVA analysis was performed. Results:Total 6625 cases, 4729 active cases and 380 deaths were reported as on 6th May 2020 in Gujarat. Daily maximum temperature was significantly correlated inversely with daily growth rate. (p value= 0.010) with Pearson correlation coefficient =-0.363. Correlation between time since lock down to daily case growth rate was non significant. (p=0.123). Phases of lockdown and growth rates showed significant inverse correlation. (p=0.002). Multivariate ANOVA showed there was statistical significant difference in case growth rate based on daily temperature [p= 0.006 F=4.71] and progression of phases of lockdown (p=0.018, F=3.55). Conclusion:Conclusion increase in temperature has inverse relationship in growth rate in covid 19 pandemic. Lockdown may be useful in decreasing growth.

scholarly journals Pertumbuhan benih ikan mas, Cyprinus carpio, yang diberi pakan dengan dosis dan frekuensi berbeda

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Tinus O O. Biduan ◽  
Indra R. N. Salindeho ◽  
Hariyani Sambali
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Cyprinus Carpio ◽  
The Body ◽  
Optimum Dose ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Feeding Regime ◽  
Significant Difference ◽  
Recirculation System

The objectives of this research were to find out the optimum dose and frequency of feeding regime to ensure the maximum growth of carp-seeds, Cyprinus carpio, reared in the backyard pond with recirculation system. The experiment was carried out in 2x3 factorial experimental design and the experimental units were designed in randomized block.  Two factors were tested in this experiment; the first factor, dose of feeding, had three levels, 3%, 4% and 5% of the total body weight per day; and the second factor had 2 levels, 2 and 3 times per day.   Hence there were 6 treatments were applied, and each treatment was triplicated.   Each repetition represented group of fish with different weight.  There were 18 experimental units, and each experimental unit was composed of 8 tested fish, therefore there were 144 tested fish, which were weighed at the beginning of the experiment and then every week during the 6 weeks period of the experiment.  The weight data were converted into FCR, absolute, relative and daily growth rate, and were statistically analyzed using JMP statistic-program (SAS-institute).             The results showed the absolute growth of fish at dose of 3% was significantly lower than that of fish at the dose of 4% and 5%, which was not significantly different.   The relative and daily growth rate was not significantly affected by the different dose of feeding regime.  There was no significant difference in FCR, absolute, relative and daily growth rate between fish fed 2 and 3 times per day.  The best FCR, 1,46, was performed by fish fed 3% of the body weight per day, and this value was significantly different with that of the fish fed 4% or 5%.   The results of this experiment suggest that, carp reared in backyard pond with recirculation system should be fed twice a day, with a dose of 3% of the body weight each day.

The effect of temperature, water input and length of growing season on sugar beet yield in five locations in Greece

2013 ◽  
Vol 152 (2) ◽  
pp. 177-187 ◽  
Author(s):  
J. T. TSIALTAS ◽  
N. MASLARIS
Keyword(s):  
Sugar Beet ◽  
Field Experiments ◽  
Maximum Yield ◽  
Growing Season ◽  
Effect Of Temperature ◽  
Maximum Temperature ◽  
Daily Minimum Temperature ◽  
Daily Maximum Temperature ◽  
Daily Maximum ◽  
Root Weight

SUMMARYFrom 1999 to 2006, 36 field experiments were conducted in five sugar beet growing areas in Greece (Larissa, Plati, Serres, Xanthi and Orestiada) to monitor yield. Locations differed significantly regarding thermal variables during the growing season with Xanthi having the most favourable thermal conditions (Tmax, average daily maximum temperature;Tmean, average daily mean temperature; GDD, growing degree days) for sugar beet growth. From early June to the end of the harvesting campaign, successive harvests were conducted. Over the years, fresh root weight and sugar yield at the last harvest of the season (FRWLH, SYLH) did not differ significantly among locations. Also, there were no significant differences among locations regarding GDD for maximum FRW and SY (GDDMFRW, GDDMSY), with the means over location estimated at 2639·9 and 2792·5 °C, respectively. Days after seeding (DAS) necessary for maximum yield (DASMFRW, DASMSY, respectively) differed among locations, with the longest period (DASMFRW206·4 days, DASMSY: 204·5 days) occurring in the northernmost location (Orestiada). Means for DASMFRWand DASMSYat the five locations were estimated at 190·4 and 188·9·days, respectively. Excluding Xanthi and combining the remaining locations, FRWLHand SYLHwere negatively correlated with the average temperatures (Tmean,TmaxandTmin, daily minimum temperature) over the growing season. The opposite was evident for Xanthi where sugar beet was grown under sub-optimal temperatures. The optimum meanTmaxof the five locations was estimated at 25·5 and 25·1 °C for FRWLHand SYLH, respectively. Elongation of the growing season, by means of early sowing, would increase yield by decreasing average temperatures (Tmean,Tmax) over the growing season in locations with the highest recorded temperatures (Larissa, Plati, Serres and Orestiada). In Xanthi, the projected temperature increase, as a result of climate change, is expected to have a positive effect on yields.

scholarly journals KINERJA PERTUMBUHAN DAN DINAMIKA KUALITAS AIR PADA BUDIDAYA ANGGUR LAUT (Caulerpa sp.) DENGAN NAUNGAN BERBEDA

2021 ◽  
Vol 19 (1) ◽  
pp. 15
Author(s):  
Riris Yuli Valentine ◽  
I Nyoman Sudiarsa ◽  
Sartika Tangguda ◽  
Dimas Rizky Hariyadi
Keyword(s):  
Growth Rate ◽  
Data Analysis ◽  
Aquatic Plants ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Absolute Weight ◽  
Randomized Design ◽  
Significant Difference ◽  
Absolute Length ◽  
Completely Randomized Design

Seagrapes (Caulerpa sp.) is one of the aquatic plants which tends to grow slowly according to the environmental conditions where sea grapes live. This study aims to determine the growth performance of sea grapes given different shelters. The method used in this study was three treatments, each treatment was repeated three times, with differences in the shade (P1 = paranet), (P2 = without roof), and (P3 = coconut leaves). Data analysis used a non-factorial completely randomized design (CRD). The results of this study are at absolute weights (P1 =1163.3 ± 260a g), (P2 = 210 ± 79.3b g), (P3 = 922 ± 199.5a g), absolute length (P1 = 5.75 ± 1.74a cm), (P2 = 0.59 ± 0 , 07b cm), (P3 = 4.82 ± 0.22a cm), daily growth rate (4.40 ± 0.1a %), (3.76 ± 0.09b %), (4.29 ± 0.09a) and the number of ramuli (P1 = 56.2 ± 21.3a), (P2 = 19.5 ± 2.3b), (P3 = 46.3 ± 3.1a). The conclusion of this study each parameter (absolute weight, absolute length and number of ramuli) has a significant difference.

scholarly journals Pengaruh perbedaan salinitas terhadap pertumbuhan kepiting bakau, Scylla serrata

2017 ◽  
Vol 5 (2) ◽  
Author(s):  
Rifan D. Sitaba ◽  
Indra R.N. Salindeho ◽  
Diane J. Kusen
Keyword(s):  
Growth Rate ◽  
Block Design ◽  
Scylla Serrata ◽  
Mud Crab ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Randomized Block Design ◽  
Significant Difference ◽  
Salinity Levels ◽  
Difference Test

The aims of the research were to find out firstly, the growth rate of the mud crab Scylla Serrata) reared under different salinity levels and secondly, the range of the salinity where the mud crab optimally grows.   The experiment was conducted at the Laboratory of Aquaculture Technology, FPIK, UNSRAT, from April to May 2017.  The experiment was set up according to the Randomized Block Design, with 3 treatments, which were 3 different salinity levels, 10 ppt, 20 ppt and 30 ppt.  The tested level of salinity was determined based on the preliminary experiment.  Each treatment was triplicated, and each replicate represents the group of the initial weight of the tested crab, which was 80-89 grams (group-1), 70-79 grams (group-2), and 60-69 grams (group-3).  The tested mud crabs were collected from the estuarine waters of Inobonto river, which has salinity level of 12 ppt.  The tested crabs were weighed at the beginning and at the end of the experiment, and at the interval of 7 days during the experiment period.  The weight of the tested crabs data were converted into Absolute Growth Rate (AGR) and Daily Growth Rate (DGR), which in turn were statistically analyzed using Anova for Randomized Block Design, and then Least Significant Difference Test.  The results of the Least Significant Difference Test show that the absolute and daily growth rate of the tested crabs in the salinity of 10 ppt are not significantly different with those in the salinity of 20 ppt.  While the lowest absolute and daily growth rate of the tested crabs were in the salinity of 30 ppt and are significantly different with those in the salinity of 10 and 20 ppt.  Hence, in order to get a maximal production, the mud crab, Scylla serrata, should be cultured in the waters with a range of salinity between 10 and 20 ppt.Keywords: Mud crab, salinity, growth

scholarly journals Pertumbuhan benih ikan mas, Cyprinus carpio, yang diberi pakan dengan dosis berbeda pada kolam pekarangan dengan sistim resirkulasi

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Kalfianus Jasansong ◽  
Indra R. N. Salindeho ◽  
Reni L. Kreckhoff
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Cyprinus Carpio ◽  
Total Body Weight ◽  
Optimum Dose ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Significant Difference ◽  
Recirculation System ◽  
Total Body

The research was aimed to find out the optimum dose of feeding regime             to ensure the maximum growth of carp-seeds, Cyprinus carpio, reared in backyard pond with recirculation system. The experiment was carried out in Randomized Block Design with 3 different dose of feeding regimes as treatments, which were 3%, 4% and 5% of the total body weight per day.  Each treatment was triplicate and each repetition functioned as group of fish with different weight.  There were 3 groups which were, fish weighing 1.5–2.4 gram (Group-1), fish weighing 2.5 – 3.4 gram (Group-2) and fish weighing 3.5 – 4.8 gram (Group-3).  Each experimental unit was composed of 8 tested fish, placed in a netting-cage bag measuring 60×30×60 cm (l×w×h) with a mesh-size of 4 mm. Each group was composed of 24 tested fish, hence there were 72 tested fish in total.  Fish were fed twice a day at 07:00 and 17:00.  Tested fish were weighed every week, and the fish weight data were converted into FCR, absolute, relative and daily growth rate. Data were statistically analyzed using JMP statistic-program.  The results showed that, there was no significant difference in absolute, relative and daily growth rate among fish fed 3%, 4% and 5% of total body weight per day.   The best FCR was performed by fish fed 3% of total body weight per day.   Hence, this experiment result suggests that, carp reared in backyard pond with recirculation system should be fed with a dose of 3% of the total body weight each day, as fish might grow well and at the same time the amount of uneaten food, feces and metabolic wastes is minimized at this dose of feeding.

Seasonal changes in otolith increment width trajectories and the effect of temperature on the daily growth rate of young sardines

2016 ◽  
Vol 25 (4) ◽  
pp. 362-372 ◽  
Author(s):  
Eudoxia Schismenou ◽  
Miquel Palmer ◽  
Marianna Giannoulaki ◽  
Itziar Alvarez ◽  
Kostas Tsiaras ◽  
...  
Keyword(s):  
Growth Rate ◽  
Seasonal Changes ◽  
Effect Of Temperature ◽  
Increment Width ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Otolith Increment

SUBSTITUSI FERMENTASI BUNGKIL KELAPA SAWIT DALAM PAKAN BUATAN TERHADAP PERTUMBUHAN DAN KELANGSUNGAN HIDUP BENIH IKAN GURAMI (OSPHRONEMUS GOURAMY)

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Farida . ◽  
Eka Indah Raharjo ◽  
Arnis Maylinda Sari
Keyword(s):  
Growth Rate ◽  
Palm Oil ◽  
Palm Kernel ◽  
Specific Weight ◽  
Feed Conversion ◽  
Daily Growth Rate ◽  
Daily Growth ◽  
Average Growth ◽  
Fermentation Residue ◽  
Average Average

ABSTRAKPenelitian bertujuan untuk mengetahui penggunaan fermentasi bungkil kelapa sawit dalam pakan buatan.Penelitian menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari 4 perlakuan 3 ulangan.Susunan perlakuan adalah Perlakuan A : bungkil kelapa sawit 12%, Perlakuan B : fermentasi bungkil kelapa sawit 15%, Perlakuan C : fermentasi bungkil kelapa sawit 18%, Perlakuan D : fermentasi bungkil kelapa sawit 21%. Penelitian ini dilakukan selama 60 hari untuk mengetahui laju pertumbuhan spesifikberat, laju pertumbuhan harianpanjang, konversi pakan, kelangsungan hidup dan kualitas air sebagai penunjang.Hasil penelitian menunjukkan pemberian pakan buatan dengan fermentasi bungkil kelapa sawit menghasilkan respon yang baik terhadap pertumbuhan ikan gurami. Pemberian pakan buatan dengan fermentasi bungkil kelapa sawit 18% (perlakuan C), memberikan hasil terbaik dengan laju pertumbuhan dengan rata – rata laju pertumbuhan spesifik berat 1.502%, laju pertumbuhan harian panjang 4.06%, nilai konversi pakan rata – rata 3.48 dan kelangsungan hidup rata – rata 90%.Kata Kunci : Fermentasi Bungkil Kelapa Sawit, Ikan Gurami, Laju PertumbuhanThe study aims to determine the use of fermentation residue oil palm in artificial feed .Research using a completely randomized design ( CRD ), which consists of 4 treatment three replications.The composition of the treatment is the treatment  A : 12 % of palm oil cake , Treatment B : fermented palm oil cake 15 % , Treatment C : fermented palm oil cake 18 % , Treatment D : fermentation residue palm oil 21 %.This research was conducted for 60 days to determine the specific growth rate of heavy , long daily growth rate , feed conversion , survival and quality of water as a supporter.The results showed the artificial feeding with fermented palm cake to produce a good response to the growth of carp.Feeding artificially by fermentation cake palm oil 18 % ( treatment C ) , gives the best results with a growth rate with the average - average growth rate of the specific weight of 1.502 % daily growth rate long- 4:06 % , the value of feed conversion average - average 3:48 and median survival - average of 90 % .Keywords : Fermentation Palm Kernel Oil, Fish carp, Growth Rate

scholarly journals Social media reveal ecoregional variation in how weather influences visitor behavior in U.S. National Park Service units

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Emily J. Wilkins ◽  
Peter D. Howe ◽  
Jordan W. Smith
Keyword(s):  
National Park ◽  
National Park Service ◽  
Spatial Behavior ◽  
Maximum Temperature ◽  
Daily Maximum Temperature ◽  
Daily Maximum ◽  
Daily Weather ◽  
Visitor Behavior ◽  
Park Service ◽  
The Impact

AbstractDaily weather affects total visitation to parks and protected areas, as well as visitors’ experiences. However, it is unknown if and how visitors change their spatial behavior within a park due to daily weather conditions. We investigated the impact of daily maximum temperature and precipitation on summer visitation patterns within 110 U.S. National Park Service units. We connected 489,061 geotagged Flickr photos to daily weather, as well as visitors’ elevation and distance to amenities (i.e., roads, waterbodies, parking areas, and buildings). We compared visitor behavior on cold, average, and hot days, and on days with precipitation compared to days without precipitation, across fourteen ecoregions within the continental U.S. Our results suggest daily weather impacts where visitors go within parks, and the effect of weather differs substantially by ecoregion. In most ecoregions, visitors stayed closer to infrastructure on rainy days. Temperature also affects visitors’ spatial behavior within parks, but there was not a consistent trend across ecoregions. Importantly, parks in some ecoregions contain more microclimates than others, which may allow visitors to adapt to unfavorable conditions. These findings suggest visitors’ spatial behavior in parks may change in the future due to the increasing frequency of hot summer days.

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