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Molecular mechanisms underpinning buoyancy control in the aquatic larvae of Chaoborus evolved from tracheal fluid clearing functionality
No full textAquatic larvae belonging to the midge genus Chaoborus are the only truly pelagic insects, possessing the ability to regulate their buoyancy and position in the water column. They achieve this buoyancy control using two pairs of closed, air-filled sacs which are derived from the longitudinal trunks of their tracheal system. Previous work has revealed that the volume of these air-sacs is controlled using a unique mechanochemical system, where bands of the protein resilin alternate with bands of tracheal cuticle in the air-sac wall to produce a composite material which expands and contracts when exposed to changes in pH. While a simple epithelium enveloping each air-sac is known to control the pH of the resilin bands, the molecular mechanisms underpinning its ability to regulate pH, and thus control the air-sac’s volume, are unknown. To reveal these mechanisms, and how this functionality evolved, we compare the transcriptomes of air-sacs from Chaoborus trivitattus larvae with tracheal tissue from the aquatic larvae of two other genera within the Chaoboridae: Eucorethra underwoodi whose larvae possess an unmodified tracheal system which they use to breathe air using a posterior respiratory siphon, and Mochlonyx cinctipes whose larvae possess a tracheal system with dilated anterior and posterior sac-like regions, but which remains open through a posterior siphon. We found that Chaoborus air-sac epithelia show strong expression of ion channels related to pH regulation relative to Eucorethra tracheal tissue, including orthologs of NHA1, Nhe2, Ae2, and pHCl-2, as well as high levels of transcript abundance of the aquaporin water channel, Drip. This suggests that the tracheal epithelium of the ancestral chaoborid possesses all the functionality required to control pH and deal with the flux of water associated with the swelling and contraction of the resilin as part of the ancestral liquid-clearing function of the tracheal epithelium, setting the stage for the evolution of a novel buoyancy control mechanism
Assessing the link between ontogenetic shifts in gill raker and diet composition of Arctic cod (Boreogadus saida) in the Canadian Beaufort Sea-Amundsen Gulf
No full textIncluded herein are the data files used in the above study that links gill raker density in Arctic cod (Boreogadus saida) to diet and habitat preferences. There are three (3) datasets. The first lists the diet items observed in the stomachs of the sampled Arctic cod from the Beaufort Sea (sampled in 2019) - (ACdietitem_2024.csv). The second lists individual fish sizes and their gill raker numbers and density, along with the size of the items found in individual stomachs (AC_size_gr_dietsize.csv). Finally, the third dataset is the data that lists most of the other data as well, but also includes the Stable Isotope data of carbon (C), nitrogen (N), and sulfur (S), which are used in both traditional and Bayesian ellipse analyses. The data can be re-analysed using the scripts available on GitHub at: (to be determined)
Data for "The influence of solute induced memory on interface migration"
No full textData from 2D kMC simulations used to simulate interface migration in the presence of solute. The two gzipped files each contain a series of numpy pickled files which contain, for the temperatures indicated, the mean boundary position as a function of time for each of the independent runs conducted at that temperature. The data is in dictionaries, with the key being a sequence of numbers that is unique for each independent run. These data can be then used to reproduce 1) mean square displacement of the mean boundary position 2) calculate the self-intermediate scattering function used to generate the main results shown in the figures of this manuscript. All of the simulation parameters are provided in the manuscript itself
Postal Code Conversion File [Canada], 2012, Census of Canada 2011
No full textThe Postal Code Conversion File (PCCF) is a digital file which provides a correspondence between the Canada Post Corporation (CPC) six-character postal code and Statistics Canada's standard geographic areas for which census data and other statistics are produced. Through the link between postal codes and standard geographic areas, the PCCF permits the integration of data from various sources. The Single Link Indicator provides one best link for every postal code, as there are multiple records for many postal codes. New to the June 2022 version, a separate data file is available for retired postal codes. The retired file uses the same record layout as the PCCF file. The same syntax file can be used for both the PCCF data file and the retired data file. The geographic coordinates attached to each postal code on the PCCF are commonly used to map the distribution of data for spatial analysis (e.g., clients, activities). The location information is a powerful tool for planning, or research purposes. The geographic coordinates, which represent the standard geostatistical areas linked to each postal codeOM on the PCCF, are commonly used to map the distribution of data for spatial analysis (e.g., clients, activities). The location information is a powerful tool for marketing, planning, or research purposes. In April 1983, the Statistical Registers and Geography Division released the first version of the PCCF, which linked postal codesOM to 1981 Census geographic areas and included geographic coordinates. Since then, the file has been updated on a regular basis to reflect changes. For this release of the PCCF, the vast majority of the postal codesOM are directly geocoded to 2011 Census geography while others are linked via various conversion processes. A quality indicator for the confidence of this linkage is available in the PCCF. </p
Postal Code Conversion File Plus [Canada], Version 6A, June 2013, Census of Canada 2011
No full textThe PCCF+ is a SAS© control program and set of associated datasets derived from the PCCF, a 2011 postal codeOM population weight file, the Geographic Attribute File, Health Region boundary files, and other supplementary data. PCCF+ automatically assigns a range of Statistics Canada standard geographic areas and other geographic identifiers based on postal codesOM.
PCCF+ differs from the PCCF in that it:
Uses population-weighted random allocation for many postal codesOM that link to more than one geographic area.
Options are available for institutional postal codesOM.
Procedures are included to link partial postal codesOM to geographic identifiers where possible.
Problem records and diagnostics are provided in the program output, along with reference information for possible solutions.
The geographic coordinates, which represent the standard geostatistical areas linked to each postal codesOM on the PCCF, are commonly used to map the distribution of data for spatial analysis (e.g., clients, activities). In April 1983, the Geography Division released the first version of the PCCF, which linked postal codes to 1981 census geographic areas and included geographic coordinates. PCCF+ was first created using the 1986 census and has been updated regularly with population weight files calculated for each census from 1991 through 2011.
The purpose of the PCCF+ is to provide a link between six-character postal codesOM produced by the Canada Post Corporation (CPC), standard 2011 Census geographic areas (such as dissemination areas, census subdivisions, and census tracts) produced by Statistics Canada, and supplementary administrative areas and neighbourhood income quintiles. Postal codesOM do not respect census geographic boundaries and so may be linked to more than one standard geographic area, or assigned to more than one set of coordinates. Therefore, one postal codeOM may be represented by more than one record. The PCCF product, produced by Statistics Canada, provides links between postal codes and all recorded matches to census geography. PCCF+ uses the PCCF but provides additional functionality in that it uses a population-weighted matching process for some residential postal codesOM where more than one geographic code is possible. PCCF+ also provides routines for institutional postal codesOM and for historic postal codesOM. The purpose of this product is not to validate postal codesOM or the PCCF.</p
Street Drug Guide
No full textMobile case for Norlien TIDE project. A medical student's pocket guide to recreational drugs on the street
Enquête sur la population active, mai 1989 [Canada] [Remanié Recensement 2001]
No full text L'Enquête sur la population active (EPA) fournit des estimations de l'emploi et du chômage, lesquelles figurent parmi les mesures les plus actuelles et les plus importantes de la performance de l'économie canadienne. Parmi les principales séries de données économiques mensuelles, les estimations axées sur l'EPA sont les premières à être rendues publiques, les résultats de l'enquête étant diffusés 13 jours seulement après la fin de la collecte des données. L'EPA, conçue à la suite de la Deuxième Guerre mondiale, a pour objectif de répartir la population en âge de travailler en trois catégories qui s'excluent mutuellement, à savoir celles des personnes occupées (des employés), des chômeurs et des inactifs, ainsi que de fournir des données descriptives et explicatives sur chacune de ces catégories. Les données de l'EPA sont utilisées pour produire le très connu taux de chômage ainsi que d'autre indicateurs de base du marché de travail tel que le taux d'emploi et le taux d'activité. L'EPA procure également des estimations de l'emploi selon la branche d'activité, la profession, le secteur public ou privé, le nombre d'heures travaillées et davantage. D’autres sujets incluent les salaires, la couverture syndicale, la permanence de l'emploi et la taille du lieu de travail. Il est possible de croiser ces séries selon une variété de caractéristiques démographiques. Il s'agit d'un fichier mensuel, et les données disponibles remontent à 1976. Note : Puisque les valeurs manquantes sont retirées de cette série de données, toute forme de non-réponse (ex. enchaînement valide, non déclaré, ne sait pas, refus) ne peut être identifiée comme manquante. L'étiquette « Sysmiss » dans la section statistiques indique le nombre d'enregistrements de non-réponse pour chacune des variables, tandis que la valeur « Valid » indique le nombre d'enregistrements de réponses pour chacune des variables. Pour chacune des variables, le total d'enregistrements comprend les valeurs « Sysmiss » ainsi que « Valid ». Révision de l'Enquête sur la population active (EPA): Les estimations de l'EPA étaient auparavant basées sur les estimations de la population du Recensement de 1996. Dorénavant, les données de l'EPA ont été rétroactivement ajustées jusqu'en 1987, pour refléter les estimations de la population du Recensement de 2001. </p
Données provisoires détaillées sur les cas confirmés de COVID-19, octobre 2024 [Canada]
No full textUn ensemble révisé de données provisoires sur le nombre de cas confirmés du nouveau coronavirus (COVID-19) déclarés par les autorités de santé publique provinciales et territoriales à l'Agence de la santé publique du Canada (ASPC) est maintenant accessible. En plus de cet ensemble de données, il est maintenant possible de consulter deux tableaux agrégés qui présentent un résumé des renseignements contenus dans l'ensemble de données.
Les données comprennent des renseignements détaillés reçus par l'ASPC et provenant des autorités de santé publique provinciales et territoriales, tels que l'évolution clinique et les résultats, comme les hospitalisations, les admissions aux soins intensifs et les décès. Les données sont également accessibles selon les caractéristiques démographiques, comme le groupe d'âge et le sexe
Replication Data for "Teaching Interpersonal Problem-Solving Skills to Young Children in ECEC Settings: An Integration of Evidence"
No full textThis data is replication material for the paper "Teaching Interpersonal Problem-Solving Skills to Young Children in ECEC Settings: An Integration of Evidence"
Authors:
McMullen, Evelyn; Perlman, Michal; Burns, Samantha; Falenchuk, Olesya; White, Linda; & Dhuey, Elizabet
Enquête canadienne sur le logement, 2022
No full textL'Enquête canadienne sur le logement (ECL) fournit des renseignements sur ce que les Canadiens ressentent à propos de leur logement et de la manière dont leur logement les touche. Des renseignements sont recueillis sur les besoins impérieux en matière de logement, les caractéristiques du logement et le mode d'occupation du logement, les perceptions des difficultés économiques associées au coût du logement, les paiements de pensions alimentaires pour les enfants, la satisfaction à l'égard du logement et du quartier, les perceptions des problèmes liés au quartier et de la sécurité du quartier, les déménagements, y compris les déménagements forcés, l'engagement communautaire, la satisfaction à l'égard de la vie et de la communauté, la santé autoévaluée, l'expérience en matière d'itinérance, les caractéristiques sociodémographiques et l'accès aux transports.
Le logement social et abordable (LSA) représente un élément important du parc de logements qui procure un logement aux personnes dans le besoin. L'ECL vise à fournir des statistiques détaillées et précises sur les ménages dans les LSA en suréchantillonnant cette sous-population.
L'ECL de 2022 a été menée dans les 10 provinces.
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