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29,897 results for “activism”
Hydrolase and Peroxidase Activity of Gold Nanocluster Composites with Lysozyme and Cross-Linked Lysozyme Crystals
<div> <div> <p>Lysozyme (Lyz) and cross-linked Lyz crystals (CLLC) are among the proteins and templates used in the bio-inspired synthesis of subnanometer-sized gold nanoclusters (AuNCs) utilized in various biological applications as biosensors or bioimaging agents and recyclable catalyst, respectively. While previous studies have explored the formation and stabilization of AuNCs in the presence of Lyz, little is known about the enzymatic activity of Lyz after stabilization of AuNCs with the protein (AuNC@Lyz) and in CLLC (AuNC@CLLC). In this study, we conducted a comprehensive analysis of AuNC@Lyz, including hydrodynamic characteristics using multiwavelength fluorescence analytical ultracentrifugation and enzymatic activity assays. AuNC@Lyz exhibited bactericidal performance as efficiently as Lyz at pH 4.0, with enzymatic activity assays indicating more efficient hydrolytic activity of AuNC@Lyz compared to Lyz under the same conditions. Additionally, AuNC@Lyz showed peroxidase-like performance due to the catalytically active surface of AuNCs in the presence of H<sub>2</sub>O<sub>2</sub> and a chromogenic substrate. The multifunctional catalytic capabilities of AuNC@Lyz, including lytic activity and mimic peroxidase function, were highlighted. Additionally, we conducted fluorescent-based hydrolytic activity assays of CLLC, revealing that morphological variations of CLLC influence the catalytic performance of the enzyme crystals depending on the size of solvent channels and Lyz conformation within the CLLC. Furthermore, the bio-inspired synthesis of AuNCs in CLLC resulted in size distributions of AuNCs correlated with pore sizes. As a consequence of the occluded solvent channels and limited breathing of CLLC, AuNC@CLLC displayed a diminishing hydrolytic performance.</p> </div> </div>
Data Sets "Modulation of electrical activity of proteinoid microspheres with chondroitin sulfate clusters"
<p>Data Sets "Modulation of electrical activity of proteinoid microspheres with chondroitin sulfate clusters"</p>
Extinction Rebellion Finland (Elokapina) Post-Repression Twitter Activity and Network Patterns
<p><strong>Overview</strong></p> <p>This repository contains two time series data sets of activity levels and network patterns on Finnish climate Twitter for the period of July 18, 2020 to February 11, 2022. First, there is a day-level data set (574 days) containing Twitter activity levels of climate activists and non-activists. Second, there is a week-level data set (81 weeks) containing estimated coefficients for various network effects from exponential random graph models (ERGM) fit to retweet networks.</p> <p>For details, including definitions of activist/non-activist and the ERGM specifications, please see the referenced work: "Social Media Affordances Sustain Social Movements Facing Repression: Evidence from Climate Activism", detailed below.</p> <p> </p> <p><strong>Data Set Details</strong></p> <p>`raw_daily_counts.csv` contains the following variables at the day level.</p> <ul> <li><em>date</em>: from 2020-07-25 to 2022-02-11</li> <li><em>activity_activist</em>: the daily activity count of activist users on Finnish climate Twitter</li> <li><em>activity_nonactivist</em>: the daily activity count of non-activist users on Finnish climate Twitter</li> <li><em>users_activist</em>: the daily count of activist users on Finnish climate Twitter</li> <li><em>users_nonactivist</em>: the daily count of non-activist users on Finnish climate Twitter</li> </ul> <p>`weekly_ERGM_coefficients.csv` contains a subset of estimated coefficients from ERGMs of weekly retweet networks from Finnish climate Twitter. The data set contains the following variables (coefficients), not all of which are from the same model specification.</p> <ul> <li><em>week</em>: starting with week 2 (2020-07-25 to 2020-07-31) and ending with week 82 (2022-02-05 to 2022-02-11)</li> <li><em>political_activity_activist</em>: activists retweeting politically relevant users</li> <li><em>political_activity_nonactivist</em>: non-activists retweeting politically relevant users</li> <li><em>gwidegree0_activist</em>: geometrically weighted in-degree (decay = 0) for the activist subnetwork</li> <li><em>gwidegree0_nonactivist</em>: geometrically weighted in-degree (decay = 0) for the non-activist subnetwork</li> <li><em>gwidegree0_activistsub_thresh3</em>: geometrically weighted in-degree (decay = 0) for the activist subnetwork with an activity level requirement for activists</li> <li><em>gwidegree0_activistsub_thresh4</em>: geometrically weighted in-degree (decay = 0) for the activist subnetwork with an activity level requirement for activists</li> <li><em>gwidegree0_activistsub_thresh5</em>: geometrically weighted in-degree (decay = 0) for the activist subnetwork with an activity level requirement for activists</li> <li><em>gwidegree0_activistsub_thresh6</em>: geometrically weighted in-degree (decay = 0) for the activist subnetwork with an activity level requirement for activists</li> <li><em>gwidegree0_activistsub_thresh7</em>: geometrically weighted in-degree (decay = 0) for the activist subnetwork with an activity level requirement for activists</li> <li><em>gwidegree0_activistsub_thresh8</em>: geometrically weighted in-degree (decay = 0) for the activist subnetwork with an activity level requirement for activists</li> <li><em>gwidegree0_activistsub_thresh9</em>: geometrically weighted in-degree (decay = 0) for the activist subnetwork with an activity level requirement for activists</li> </ul> <p> </p> <p><strong>References</strong></p> <p>Please reference the original study when using this data set.<br>Savolainen, Sonja, Ville P. Saarinen, and Ted Hsuan Yun Chen. 2024. “Social Media Affordances Sustain Social Movements Facing Repression: Evidence from Climate Activism.” <a href="https://doi.org/10.31235/osf.io/p4yvk" target="_blank" rel="noopener">doi:10.31235/osf.io/p4yvk</a>.</p>
Fig. 3 in Circadian activity patterns of the Red fox (Vulpes vulpes) and the Stone marten (Martes foina) in agricultural landscape of Northwestern Bulgaria during autumn-winter period
Fig. 3. Stone marten (Martes foina) and Red fox (Vulpes vulpes) daily activity patterns in protected area "Zlatiyata", Northwestern Bulgaria.
Fig. 2 in Circadian activity patterns of the Red fox (Vulpes vulpes) and the Stone marten (Martes foina) in agricultural landscape of Northwestern Bulgaria during autumn-winter period
Fig. 2. Stone marten, Martes foina (left) and Red fox, Vulpes vulpes (right) captured in protected area "Zlatiyata", Northwestern Bulgaria.
Fig.1 in Home range, movements and activity patterns of an exceptionally large male Brown Bear (Ursus arctos L.) in the area of the Bulgarian-Greek border (Western Rhodope Mts.)
Fig.1. Dominant male (supposed age of at least 15 years old) with scars of battles with rivals. Hunting Forestry Adjilarska (photo from a kamera-trap, D. Bukovsky, 17.03.2014 at a game-feeding station).
Fig. 1 in Is the Kotschy's Gecko Mediodactylus kotschyi (Steindachner, 1870) (Reptilia: Gekkonidae) active during the winter?
Fig. 1. The observed specimens of M. kotschyi rumelicusfrom the building of the University of Food Technologies in Plovdiv (Bulgaria). A – an adult specimen, observed on 09.11.2015; B - an adult specimen, observed on 18.11.2015. Photos: S. Basheva.
Fig 2. A in Home range, movements and activity patterns of an exceptionally large male Brown Bear (Ursus arctos L.) in the area of the Bulgarian-Greek border (Western Rhodope Mts.)
Fig 2. A century-old bear marking tree just on the Bulgarian/Greek border. The tree is marked also with white paint as a border pillar (photo N. Spassov).
Fig. 2 in On the activity of two medium-sized canids: the Golden Jackal (Canis aureus) and the Red Fox (Vulpes vulpes) in the Natural Bark "Sinite Kamani" (Bulgaria) revealed by camera traps
Fig. 2. Number of all pictures of Red Fox (Vulpes vulpes) taken during 24h (expressed for one hour time interval) during seasons.
Fig. 4 in On the activity of two medium-sized canids: the Golden Jackal (Canis aureus) and the Red Fox (Vulpes vulpes) in the Natural Bark "Sinite Kamani" (Bulgaria) revealed by camera traps
Fig. 4. Daytime activity (feeding on dog food) of the Red Fox and the Golden Jackal registered by camera traps at the Sinite Kamani Natural Park.
Fig. 1 in On the activity of two medium-sized canids: the Golden Jackal (Canis aureus) and the Red Fox (Vulpes vulpes) in the Natural Bark "Sinite Kamani" (Bulgaria) revealed by camera traps
Fig. 1. Location of Sinite Kamani Natural Park and schematic position of the camera traps through the park (black circles).
Fig. 3 in On the activity of two medium-sized canids: the Golden Jackal (Canis aureus) and the Red Fox (Vulpes vulpes) in the Natural Bark "Sinite Kamani" (Bulgaria) revealed by camera traps
Fig. 3. Number of all pictures of Golden Jackal (Canis aureus) taken during 24h (expressed for one hour time interval) during seasons.
Data for: Activity of predators in seabird colonies decreases during the darkest compared to the brightest phase of the diel cycle below, but not above, the Arctic Circle
<p>The description of the data and how they were collected is in the associated open access publication: Huffeldt, N.P., F.M. van Beest, H.L. Kenyon, J. Danielsen, and T. Guilford. (2024) Activity of predators in seabird colonies decreases during the darkest compared to the brightest phase of the diel cycle below, but not above, the Arctic Circle. <em>Arctic, Antarctic, and Alpine Research</em> 56: 2367262. https://doi.org/10.1080/15230430.2024.2367262</p>
Рис. 7. Δинамика проΑоΛжитеΛьности фаз активности и покоя ювениΛьных особей гренΛанΑского Λемминга посΛе первого выхоΑа из норы в хоΑе набΛюΑений с 12 июΛя по 5 августа 1987 г., о. ВрангеΛя Fig. 7. Dynamics of the duration of rest-activity phases and rest of juveniles of the Greenland lemming after the first exit from the burrow during the observations from 12 July to 5 August, 1987, Wrangel Island in Territorial behaviour of the greenlandic lemming (Dicrostonyx groenlandicus Trail, 1823) on Wrangel Island
Рис. 7. Δинамика проΑоΛжитеΛьности фаз активности и покоя ювениΛьных особей гренΛанΑского Λемминга посΛе первого выхоΑа из норы в хоΑе набΛюΑений с 12 июΛя по 5 августа 1987 г., о. ВрангеΛя Fig. 7. Dynamics of the duration of rest-activity phases and rest of juveniles of the Greenland lemming after the first exit from the burrow during the observations from 12 July to 5 August, 1987, Wrangel Island
Рис. 3. ПроΑоΛжитеΛьность фаз активности и покоя ♂ гренΛанΑского Λемминга в периоΑ набΛюΑений 1–7.07 и 4–5.08.1987 г., о. ВрангеΛя Fig. 3. Duration of rest-activity phases of the Greenland lemming ♂ during the observation period, 1–7 July and 4–5 August, 1987, Wrangel Island in Territorial behaviour of the greenlandic lemming (Dicrostonyx groenlandicus Trail, 1823) on Wrangel Island
Рис. 3. ПроΑоΛжитеΛьность фаз активности и покоя ♂ гренΛанΑского Λемминга в периоΑ набΛюΑений 1–7.07 и 4–5.08.1987 г., о. ВрангеΛя Fig. 3. Duration of rest-activity phases of the Greenland lemming ♂ during the observation period, 1–7 July and 4–5 August, 1987, Wrangel Island
Рис. 5. ПроΑоΛжитеΛьность фаз активности и покоя ♀ гренΛанΑского Λемминга в периоΑ набΛюΑения 12.07 и 13.07 1987 г., о. ВрангеΛя Fig. 5. Duration of rest-activity phases of the Greenland lemming ♀ during the observation period, 12–13 July, 1987, Wrangel Island in Territorial behaviour of the greenlandic lemming (Dicrostonyx groenlandicus Trail, 1823) on Wrangel Island
Рис. 5. ПроΑоΛжитеΛьность фаз активности и покоя ♀ гренΛанΑского Λемминга в периоΑ набΛюΑения 12.07 и 13.07 1987 г., о. ВрангеΛя Fig. 5. Duration of rest-activity phases of the Greenland lemming ♀ during the observation period, 12–13 July, 1987, Wrangel Island
Рис. 10. Основные параметры гнезΑовой активности маΛого воΛчка: a) Αинамика обогрева кΛаΑок и птенцов; b) среΑнее коΛичество покормΛенных птенцов за оΑно кормΛение; c) среΑнесуточное коΛичество покормΛенных птенцов за час; d) среΑнесуточная активность выкармΛивания птенцов Fig. 10. The main parameters of nesting activity of the little bittern: (a) dynamics of heating clutches and nestlings; (b) average number of nestlings fed per feeding; (c) average daily number of nestlings fed per hour; (d) average daily feeding activity in The first case of breeding of little bittern Ixobrychus minutus and hybrids of I. minutus with I. sinensis in the Russian Far East
Рис. 10. Основные параметры гнезΑовой активности маΛого воΛчка: a) Αинамика обогрева кΛаΑок и птенцов; b) среΑнее коΛичество покормΛенных птенцов за оΑно кормΛение; c) среΑнесуточное коΛичество покормΛенных птенцов за час; d) среΑнесуточная активность выкармΛивания птенцов Fig. 10. The main parameters of nesting activity of the little bittern: (a) dynamics of heating clutches and nestlings; (b) average number of nestlings fed per feeding; (c) average daily number of nestlings fed per hour; (d) average daily feeding activity
Fig. 4. Survival curves with 95 in Effect of temperature on growth, reproductive activity, and survival of the invasive bromeliad-eating weevil Metamasius callizona (Coleoptera: Curculionidae)
Fig. 4. Survival curves with 95% confidence intervals for Metamasius callizona adults at 3 temperatures. Numbers of individuals at time zero were: 16 °C, n = 54; 25 °C, n = 47; and 35 °C, n = 74.
Fig. 2 in Effect of temperature on growth, reproductive activity, and survival of the invasive bromeliad-eating weevil Metamasius callizona (Coleoptera: Curculionidae)
Fig. 2. Development rate of Metamasius callizona from A) egg collection to pupation and from B) pupation to adult emergence at 4 temperatures in the weevil's operational range.
Fig. 1. Proportion and 95 in Effect of temperature on growth, reproductive activity, and survival of the invasive bromeliad-eating weevil Metamasius callizona (Coleoptera: Curculionidae)
Fig. 1. Proportion and 95% confidence intervals of A) eggs, B) larvae, C) pupae, and D) adults surviving afer exposure to 1 of 7 temperatures for 1, 2, or 4 d, and E) adult survival rate afer exposure to 0 °C for 6 and 8 d. Confidence intervals were calculated using Wilson score intervals (α = 0.05; Wilson 1927). For each life stage, the average number and range of replicates per the temperatures and days to which they were exposed were: eggs, average 25, range 12 to 32; larvae, average 25, range 20 to 37; pupae, average 15, range 10 to 28; adults, average 23, range 17 to 38.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.