2,343 research outputs found
Insurgent Encounters: Transnational Activism, Ethnography, and the Political
nsurgent Encounters: Transnational Activism, Ethnography, and the Political, edited by Jeffrey Juris and Alex Khasnabish, opens with a vignette describing an encounter between international activists and Zapatista base communities in 2006–7. The moment, and the thick description of it in the introduction, serves as an exemplar of the ethnographic approach to studying social movements advocated in this book: at once romantic, mysterious, and radical, while also rife with contradictions, struggles, and tensions. Juris and Khasnabish have gathered together a diverse collection of work on transnational activism that highlights the importance of ethnography as a set of methods largely neglected in traditional social movement research, a mode of analysis and writing, and a mechanism for creating more effective political strategies and tactics
Environmental study of ERTS-1 imagery: Lake Champlain and Vermont
Environmental concerns of the State of Vermont currently being stressed include water quality in Lake Champlain and a state-wide land use and capability plan. Significant results obtained from ERTS-1 relate directly to the above concerns. Industrial water pollution and turbidity in Lake Champlain have been identified and mapped and the ERTS pollution data will be used in the developing court suit which Vermont has initiated against the polluters. ERTS imagery has also provided a foundation for updating and revising land use inventories. Major classes of land use have been identified and mapped, and substantial progress has been made toward the mapping of such land use divisions as crop and forest type, and wetlands
Charge on the Battery
The black and white engraving depicts a battle scene. Soldiers armed with rifles charge a cloudy/smoky battlefield. The image is printed on off-white paper with black ink and appears to have been removed from a bound volume.https://scholarsjunction.msstate.edu/fvw-prints/1083/thumbnail.jp
Charge on the Battery
The black and white engraving depicts a battle scene. Soldiers armed with rifles charge a cloudy/smoky battlefield. The image is printed on off-white paper with black ink and appears to have been removed from a bound volume.https://scholarsjunction.msstate.edu/fvw-artifacts/1160/thumbnail.jp
Cavalry Charge
The black and white engraving depicts a scene from a Civil War battle. Several men ride on horseback with swords drawn. Some are shown falling from their horses or lifeless on the ground. Dust fills the scene in the background. The image is printed on off-white paper with black ink. It appears to have been removed from a bound volume.https://scholarsjunction.msstate.edu/fvw-prints/1079/thumbnail.jp
Tip-enhanced strong coupling spectroscopy, imaging, and control of a single quantum emitter
Optical cavities can enhance and control light-matter interactions. This level of control has recently been extended to the nanoscale with single emitter strong coupling even at room temperature using plasmonic nanostructures. However, emitters in static geometries, limit the ability to tune the coupling strength or to couple different emitters to the same cavity. Here, we present tip-enhanced strong coupling (TESC) with a nanocavity formed between a scanning plasmonic antenna tip and the substrate. By reversibly and dynamically addressing single quantum dots, we observe mode splitting up to 160 meV and anticrossing over a detuning range of ~100 meV, and with subnanometer precision over the deep subdiffraction-limited mode volume. Thus, TESC enables previously inaccessible control over emitter-nanocavity coupling and mode volume based on near-field microscopy. This opens pathways to induce, probe, and control single-emitter plasmon hybrid quantum states for applications from optoelectronics to quantum information science at room temperature
The Effects of Anabolic-Androgenic Steroids on Gene Expression in Skeletal Muscle: A Systematic Review
International Journal of Exercise Science 16(3): 53-82, 2023. Anabolic-androgenic steroids (AAS) act via androgen receptor (AR) interaction to induce muscle protein synthesis. This process is achieved via altered gene expression via the Notch, Wnt, and Numb pathways and their interactions at the AR, manifesting in key skeletal muscle (SM) phenotypes such as morphology, ion conductance, and functionality. This review aims to report on the effects of AAS administration on gene expression in SM. Peer-reviewed empirical studies evaluating AAS administration on SM phenotypes and gene expression were considered for inclusion. The following databases were searched using a data range of Jan 2000-November 2020: MEDLINE Complete, Academic Search Complete, APA PsycInfo, SPORTDiscus, CINAHL Plus, Cochrane Central Register of Controlled Trials, Rehabilitation & Sports Medicine Source, GreenFILE, and APA PsycArticles. Potential risks of bias were assessed via a modified PEDro Scale. Twenty-nine peer-reviewed titles were included. All studies consisted of either human or rodent subjects and included an AAS dosing protocol, investigated SM phenotypes, and measured gene expression as an outcome variable. Studies investigated the effects of eight AAS compounds across a total of 88 different genes in SM. The most commonly identified genes increased by AAS were IGF, MYOG, and MyoD. There was a general lack of standardized dosing and AAS variety. Future studies should attempt to incorporate multiple AAS compounds and their effects on key SM gene expression
Recommended from our members
Thermodynamic assessment of the Ge-Si-O-Cl-H system
An assessed thermodynamic dataset for the Ge-Si-O-Cl- H system useful for application in the glass fiber industry is presented. The focus of the work is on the germanium-bearing species. Taking into account the available vapor pressure measurements on the Ge-O , Ge-Cl, Ge-Cl-H , and Ge-O-Cl Systems, modifications have been made to the recommended data for the important oxide and halide species. The GeO2-SiO2 and GeCl4-SiCl4 binary systems have been thermodynamically optimized using simple models. The current dataset, when combined with the data from the FactSage™ database for the other required species/phases, can be used to make useful calculations of glass vapor equilibria pertinent to the manufacture of germanium-doped silica glass fibers using vapor deposition methods
Micropillar resonator in a magnetic field: Zero and Finite temperature cases
In this work, we present a theoretical study of a quantum dot-microcavity
system which includes a constant magnetic field in the growth direction of the
micropillar. First, we study the zero temperature case by means of a
selfconsistent procedure with a trial function composed by a coherent photon
field and a BCS function for the electron-hole pairs. The dependence of the
ground-state energy on the magnetic field and the number of polaritons is
found. We show that the magnetic field can be used as a control parameter of
the photon number, and we make explicit the scaling of the total energy with
the number of polaritons. Next, we study this problem at finite temperatures
and obtain the scaling of the critical temperature with the number of
polaritons.Comment: "Paper presented in PLMCN7. To appear in Superlattices and
Microstructures
Evidence for a diffusion-controlled mechanism for fluorescence blinking of colloidal quantum dots
Fluorescence blinking in nanocrystal quantum dots is known to exhibit power-law dynamics, and several different mechanisms have been proposed to explain this behavior. We have extended the measurement of quantum-dot blinking by characterizing fluctuations in the fluorescence of single dots over time scales from microseconds to seconds. The power spectral density of these fluctuations indicates a change in the power-law statistics that occurs at a time scale of several milliseconds, providing an important constraint on possible mechanisms for the blinking. In particular, the observations are consistent with the predictions of models wherein blinking is controlled by diffusion of the energies of electron or hole trap states
- …