cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.1231882.v1
title: Trade-off between reproduction and growth in American Buckthorn species in woodlots on York University campus

description: The study site chosen for this experiment was the woodlots on the eastern end of York University campus near Chimneystack Road. Data was collected from 3:00-4:45p.m on Friday, October 17, 2014 (mild wind, cloudy and at about 15˚C) and Friday, October 24, 2014 (sunny, not windy and at about 15˚C). The sampling method used was block sampling – measured the distance between the base of one sample to the base of the other sample using a transect tape. To maintain consistency only trees with diameter at breast height of 13cm and greater (to avoid measuring saplings) were measured and recorded. The dbh was measured using a transect tape. To further maintain consistency all branches that were sampled on each tree were approximately 50cm in length (measured using a measuring tape). The purpose of this investigation was to see if there is a trade-off between reproduction and growth in the American Buckthorn plant species. In order to observe any correlations we sampled 50 trees, and on each tree three branches were sampled. The total amount of fruits on each branch were counted and recorded. The average number of fruits per branch was then calculated ((branch1 + branch2 + branch3) /3). On each branch three leaves near the terminal end were picked and the diagonal dimensions were measured and recorded using a measuring tape. These dimensions were used to calculate the approximate surface area of the rhombus shaped leaves (SA= ((diagonal x diagonal)/2). The average surface area was then calculated and recorded ((SA1 + SA2…+SA9)/9). A fruit was picked near each leaf on each branch and the diameter was measured and recorded using a measuring tape. The average fruit diameter was then calculated and recorded ((d1+ d2…+ d9)/9). In order to observe growth in the species the height of each tree was approximated into one of three categories: less than 10ft, 10-20ft, or greater than 20ft. The results from this dataset generally showed: taller trees had larger leaves and had less and smaller fruits whereas, smaller trees had smaller leaves but bared more and larger fruits. This study also provided as a way to gain experience in field sampling techniques with plants and experimental design. Study members were Lilach Dahoah-Halevi, Cait Carew, and Sija Srikanthan.
DOI: 10.6084/m9.figshare.1231962.v1
title: Disturbance and Diversity

description: This experiment was done on October 24, 2014 in Toronto Ontario on York University-Keele campus to test the intermediate disturbance hypothesis. Three separate sampling blocks were designated as high, low, and intermediate levels of disturbance. Data were collected with three other experimenters: Anees, Jamal, and Tarafdar. The weather was sunny and slightly windy. The temperature was approximately 12 degrees Celsius. No precipitation before, so the conditions were dry. Started sampling in the highly disturbed area, south of Vanier College building, at 3pm. Two 20 meter (m) transects were laid on the ground perpendicularly to designate the 400 m2 sampling block. The sampling method used was simple random. A numbered grid system was constructed to divide up the sampling block. Grids were numbered from 1 to 400, with each grid representing 1m by 1m plots. In order to randomly select 25 grids, a random number table was used. Each experimenter then followed the transect length to reach the designated grid to place the 1m by 1m quadrat. A sweep net with a diameter of 35 centimeter (cm) was held 10cm above ground and moved slowly from one edge of the quadrat to the opposite edge. This was done for 77 seconds. Then the experimenter moved to the perpendicular side of the quadrat and continued this sweeping motion for 77 second. At the end of the total sweep time (1.5 minutes), the number of insects in the sweep net was counted, and the different number of RTUS (recognizable taxonomic units) was observed and recorded. Based on morphology of the plant, the number off different plant species was counted (including grass). Any plant near the edge of the quadrat was only counted if the roots were within the quadrat. The percent vegetation cover was observed by standing upright and looking down to make en estimate of the area that was completely covered by vegetation where no soil was visible. The same process was done at Danby grassland for sampling intermediate disturbance level. The sampling block was approximately 60 meters east from the start of the grassland. The same process was repeated for the third time at the grassland near Pond road and Keele street to sample low disturbance.
DOI: 10.6084/m9.figshare.1231966.v2
title: Improving legume nodulation and Cu rhizostabilization using a genetically modified rhizobia

description: The rhizobia–legume interaction has been proposed as an interesting and appropriate tool for rhizostabilization of soils contaminated with heavy metals. One of the main requirements to use this symbiosis is the availability of tolerant and symbiotically effective rhizobia. The aim of this work was to improve the symbiotic properties of the arsenic-resistant wild-type strain <i>Ensifer medicae</i> MA11 in Cu-contaminated substrates. The <i>copAB</i> genes from a Cu-resistant <i>Pseudomonas fluorescens</i> strain were expressed in <i>E. medicae</i> MA11 under the control of the <i>nifH</i> promoter. The resulting strain <i>E. medicae</i> MA11-<i>copAB</i> was able to alleviate the toxic effect of Cu in <i>Medicago truncatula</i>. At 300 µM Cu, root and shoot dry matter production, nitrogen content, number of nodules and photosynthetic rate were significantly reduced in plants inoculated with the wild-type strain. However, these parameters were not altered in plants inoculated with the genetically modified strain. Moreover, nodules elicited by this strain were able to accumulate twofold the Cu measured in nodules formed by the wild-type strain. In addition, the engineered <i>E. medicae</i> strain increased Cu accumulation in roots and decreased the content in shoots. Thus, <i>E. medicae</i> MA11-<i>copAB</i> increased the capacity of <i>M. truncatula</i> to rhizostabilize Cu, decreasing the translocation factor and avoiding metal entry into the food chain. The plasmid containing the <i>nifH</i> promoter-<i>copAB</i> construct could be a useful biotool for Cu rhizostabilization using legumes, since it can be transferred to different rhizobia microsymbionts of authoctonous legumes growing in Cu-contaminated soils.
DOI: 10.6084/m9.figshare.12918212
title: R0193_20171011a_videos

description: Rat 0193, skilled reaching data collected in Leventhal laboratory by Alexandra Bova
DOI: 10.6084/m9.figshare.1230216
title: Affect of Sunlight on Plant Abundance and Diversity

description: Data was taken from a York Univeristy grassland on two separate days during the month of October. Quadrats were used to collect the data. Forty quadrats were sampled from the shaded edge of the grassland, one meter apart from each other. Another forty quadrats were sampled from the sun exposed area of the grassland, fifteen meters from the edge of the grassland and also one meter apart from each other. The number of individual plants, the number of different plant species, and the percent coverage of plants and grass within each of the quadrats were the variables examined. This data was collected in order to examine the effects that sunlight and shade have on the abundance and diversity of plant species in the York University grassland.
DOI: 10.6084/m9.figshare.1230223
title: ESTRÉS LABORAL EN EL CENTRO DE SALUD DEL EMPALME

description: estudio de estres en CS EL EMPALME
DOI: 10.6084/m9.figshare.1230223.v1
title: ESTRÉS LABORAL EN EL CENTRO DE SALUD DEL EMPALME

description: estudio de estres en CS EL EMPALME
DOI: 10.6084/m9.figshare.1230717
title: BIOL 2050 WK 7 Distribution of Species

description: A sample of plant populations and communities were collected into a dataset from the grassland and woodlot area at York University Keele Campus on October 17 and Octorber 24, 2014. Plant populations and diversity was compared between samples taken from the edge of the woodlot and samples taken from the centre of the grassland. 40 metal quadrats were placed in vegetation on the ground at the edge of the woodlot 1m apart., Using a transect tape, a second set of 40 quadrats was placed 15 meters from the edge of the woodlot, into the grassland, also 1m apart. The data measured was total abundance of plants, total number of different plant species, total cover of all vegetation, and total cover of grasses, within a quadrat. Total cover of all vegetation and total cover of grasses was measured by a percentage. Predictions for this experimental design is based on life history patterns found in a species; the success of a particular plant will be limited to its habitat characteristics.
DOI: 10.6084/m9.figshare.1231206.v1
title: DATASET FOR: Factors Effecting Goldenrods: How Power Lines and Thicket Hinder and Aid Growth

description: This is the data set taken for the paper " Factors Effecting Goldenrods: How Power Lines and Thicket Hinder and Aid Growth." The topic of this experiment is goldenrod growth. Specifically, the purpose was to identify and quantify what factors effect goldenrod growth, by examining goldenrods growing under power lines or by a thicket. The effect of other plant species and their potential competitive effects was also taken into account. All measurements were taken in the hydro field north of York University Keele campus, west of Steeles. The hydro field is populated by goldenrods, various aster species and other wildflowers, and a few small trees. There is a dense brush which runs through the field in places, within which no other plant life grows, which is where thicket measurements were taken.
DOI: 10.6084/m9.figshare.1230717.v1
title: BIOL 2050 WK 7 Distribution of Species

description: A sample of plant populations and communities were collected into a dataset from the grassland and woodlot area at York University Keele Campus on October 17 and Octorber 24, 2014. Plant populations and diversity was compared between samples taken from the edge of the woodlot and samples taken from the centre of the grassland. 40 metal quadrats were placed in vegetation on the ground at the edge of the woodlot 1m apart., Using a transect tape, a second set of 40 quadrats was placed 15 meters from the edge of the woodlot, into the grassland, also 1m apart. The data measured was total abundance of plants, total number of different plant species, total cover of all vegetation, and total cover of grasses, within a quadrat. Total cover of all vegetation and total cover of grasses was measured by a percentage. Predictions for this experimental design is based on life history patterns found in a species; the success of a particular plant will be limited to its habitat characteristics.
DOI: 10.6084/m9.figshare.1230199
title: Part 3 of the raw data for the paper "Effect of partial H2O-D2O replacement on the anisotropy of transverse proton spin relaxation in bovine articular cartilage", Sirisha Tadimalla and Konstantin I. Momot

description: Anisotropy of transverse proton spin relaxation in collagen-rich tissues like cartilage and tendon is a well-known phenomenon that manifests itself as the "magic-angle" effect in magnetic resonance images of these tissues. It usually attributed to the non-zero averaging of intra-molecular dipolar interactions in water molecules bound to oriented collagen fibers. One way to manipulate the contributions of these interactions to spin relaxation is by partially replacing the water in the cartilage sample with deuterium oxide. It is known that dipolar interactions in deuterated solutions are weaker, resulting in a decrease in proton relaxation rates. In this work, we investigate the effects of deuteration on the longitudinal and the isotropic and anisotropic contributions to transverse relaxation of water protons in bovine articular cartilage. We demonstrate that the anisotropy of transverse proton spin relaxation in articular cartilage is independent of the degree of deuteration, bringing into question some of the assumptions currently held over the origins of relaxation anisotropy in oriented tissues.
DOI: 10.6084/m9.figshare.1230198
title: Part 2 of the raw data for the paper "Effect of partial H2O-D2O replacement on the anisotropy of transverse proton spin relaxation in bovine articular cartilage", Sirisha Tadimalla and Konstantin I. Momot

description: Anisotropy of transverse proton spin relaxation in collagen-rich tissues like cartilage and tendon is a well-known phenomenon that manifests itself as the "magic-angle" effect in magnetic resonance images of these tissues. It usually attributed to the non-zero averaging of intra-molecular dipolar interactions in water molecules bound to oriented collagen fibers. One way to manipulate the contributions of these interactions to spin relaxation is by partially replacing the water in the cartilage sample with deuterium oxide. It is known that dipolar interactions in deuterated solutions are weaker, resulting in a decrease in proton relaxation rates. In this work, we investigate the effects of deuteration on the longitudinal and the isotropic and anisotropic contributions to transverse relaxation of water protons in bovine articular cartilage. We demonstrate that the anisotropy of transverse proton spin relaxation in articular cartilage is independent of the degree of deuteration, bringing into question some of the assumptions currently held over the origins of relaxation anisotropy in oriented tissues.
DOI: 10.6084/m9.figshare.1230216.v1
title: Affect of Sunlight on Plant Abundance and Diversity

description: Data was taken from a York Univeristy grassland on two separate days during the month of October. Quadrats were used to collect the data. Forty quadrats were sampled from the shaded edge of the grassland, one meter apart from each other. Another forty quadrats were sampled from the sun exposed area of the grassland, fifteen meters from the edge of the grassland and also one meter apart from each other. The number of individual plants, the number of different plant species, and the percent coverage of plants and grass within each of the quadrats were the variables examined. This data was collected in order to examine the effects that sunlight and shade have on the abundance and diversity of plant species in the York University grassland.
DOI: 10.6084/m9.figshare.1230199.v1
title: Part 3 of the raw data for the paper "Effect of partial H2O-D2O replacement on the anisotropy of transverse proton spin relaxation in bovine articular cartilage", Sirisha Tadimalla and Konstantin I. Momot

description: Anisotropy of transverse proton spin relaxation in collagen-rich tissues like cartilage and tendon is a well-known phenomenon that manifests itself as the "magic-angle" effect in magnetic resonance images of these tissues. It usually attributed to the non-zero averaging of intra-molecular dipolar interactions in water molecules bound to oriented collagen fibers. One way to manipulate the contributions of these interactions to spin relaxation is by partially replacing the water in the cartilage sample with deuterium oxide. It is known that dipolar interactions in deuterated solutions are weaker, resulting in a decrease in proton relaxation rates. In this work, we investigate the effects of deuteration on the longitudinal and the isotropic and anisotropic contributions to transverse relaxation of water protons in bovine articular cartilage. We demonstrate that the anisotropy of transverse proton spin relaxation in articular cartilage is independent of the degree of deuteration, bringing into question some of the assumptions currently held over the origins of relaxation anisotropy in oriented tissues.
DOI: 10.6084/m9.figshare.1230198.v1
title: Part 2 of the raw data for the paper "Effect of partial H2O-D2O replacement on the anisotropy of transverse proton spin relaxation in bovine articular cartilage", Sirisha Tadimalla and Konstantin I. Momot

description: Anisotropy of transverse proton spin relaxation in collagen-rich tissues like cartilage and tendon is a well-known phenomenon that manifests itself as the "magic-angle" effect in magnetic resonance images of these tissues. It usually attributed to the non-zero averaging of intra-molecular dipolar interactions in water molecules bound to oriented collagen fibers. One way to manipulate the contributions of these interactions to spin relaxation is by partially replacing the water in the cartilage sample with deuterium oxide. It is known that dipolar interactions in deuterated solutions are weaker, resulting in a decrease in proton relaxation rates. In this work, we investigate the effects of deuteration on the longitudinal and the isotropic and anisotropic contributions to transverse relaxation of water protons in bovine articular cartilage. We demonstrate that the anisotropy of transverse proton spin relaxation in articular cartilage is independent of the degree of deuteration, bringing into question some of the assumptions currently held over the origins of relaxation anisotropy in oriented tissues.
DOI: 10.6084/m9.figshare.1230185
title: Part 1 of the raw data for the paper "Effect of partial H2O-D2O replacement on the anisotropy of transverse proton spin relaxation in bovine articular cartilage", Sirisha Tadimalla and Konstantin I. Momot

description: Anisotropy of transverse proton spin relaxation in collagen-rich tissues like cartilage and tendon is a well-known phenomenon that manifests itself as the "magic-angle" effect in magnetic resonance images of these tissues. It usually attributed to the non-zero averaging of intra-molecular dipolar interactions in water molecules bound to oriented collagen fibers. One way to manipulate the contributions of these interactions to spin relaxation is by partially replacing the water in the cartilage sample with deuterium oxide. It is known that dipolar interactions in deuterated solutions are weaker, resulting in a decrease in proton relaxation rates. In this work, we investigate the effects of deuteration on the longitudinal and the isotropic and anisotropic contributions to transverse relaxation of water protons in bovine articular cartilage. We demonstrate that the anisotropy of transverse proton spin relaxation in articular cartilage is independent of the degree of deuteration, bringing into question some of the assumptions currently held over the origins of relaxation anisotropy in oriented tissues.
DOI: 10.6084/m9.figshare.1230181
title: Milkweed Data

description: To the TA.
DOI: 10.6084/m9.figshare.1230185.v1
title: Part 1 of the raw data for the paper "Effect of partial H2O-D2O replacement on the anisotropy of transverse proton spin relaxation in bovine articular cartilage", Sirisha Tadimalla and Konstantin I. Momot

description: Anisotropy of transverse proton spin relaxation in collagen-rich tissues like cartilage and tendon is a well-known phenomenon that manifests itself as the "magic-angle" effect in magnetic resonance images of these tissues. It usually attributed to the non-zero averaging of intra-molecular dipolar interactions in water molecules bound to oriented collagen fibers. One way to manipulate the contributions of these interactions to spin relaxation is by partially replacing the water in the cartilage sample with deuterium oxide. It is known that dipolar interactions in deuterated solutions are weaker, resulting in a decrease in proton relaxation rates. In this work, we investigate the effects of deuteration on the longitudinal and the isotropic and anisotropic contributions to transverse relaxation of water protons in bovine articular cartilage. We demonstrate that the anisotropy of transverse proton spin relaxation in articular cartilage is independent of the degree of deuteration, bringing into question some of the assumptions currently held over the origins of relaxation anisotropy in oriented tissues.
DOI: 10.6084/m9.figshare.1230169
title: Effect of Distance On Flowering Plants Abundance

description: The purpose of our study was to understand plant–plant interactions, namely competition among grassland flowering plant species for resources, since we observed different abundance of species at different sites. We also examined how other factors such as temperature influenced grassland communities. The study site was in south side of York University in Toronto, Canada. This site is of importance due to its uses such as electric poles for city power supply, recreation and transportation. However, what was most important about it for us was its biodiversity. Although placed in the city its biodiversity and different vegetation patches of the site allowed us to conduct our data collection at this site. Our group started with a pilot study and the process of data collection followed for the next three consecutive weeks, which started on 2/10/2014. In our study, we examined the relationship between flowering plant species abundance and distance from the shrubs. We randomly chose shrubs and at distances of 1meter, 3meters and 5meters away from the shrubs used transect to take a sample of what different plant species and how many of each existed. To get a thorough idea of what was really happening and understand the effects of all factors combined we also measured and recorded the temperature at each distance and measured the dimensions of each shrub to test if there were any correlations between them. To recognize flowering plant species’ names, the plants book provided in the lab was used as a guide. To examine the effect of distance on the abundance of flowering plants, one-way ANOVA test was performed on the obtained data. Since ANOVA controls Type 1 errors, it was a good choice for our experiment purposes because it could ensure us that any significant result we found was not just down to chance. The means of samples were calculated, and variation between and within groups were calculated; and finally the calculated value was compared to the Fcritical value to test our hypothesis.
DOI: 10.6084/m9.figshare.1230170
title: Accurate Defective Blank Page

description: An accurate defective blank page.
DOI: 10.6084/m9.figshare.1230170.v1
title: Accurate Defective Blank Page

description: An accurate defective blank page.
DOI: 10.6084/m9.figshare.1230181.v1
title: Milkweed Data

description: To the TA.