2875 research outputs found
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PPT Phase IV Study
No full text0.1 Hz (10-second cycle) hemodynamic oscillations were induced in healthy human participants via intermittent thigh cuff inflations. Brachial artery blood flow was reduced by 70-80% to create a condition of severe tissue ischemia. Arterial pressure, blood flow (brachial artery and cerebral arteries), and tissue oxygen saturation (forearm and brain) responses were measured throughout the protocol
Latin American Press Review, Program 1973-19, 1973 July 26
No full textPart I: The Latin American Press Review discusses opposition in Puerto Rico to a proposed petrochemical super port, with concerns raised by Juan Mari Brás about its environmental and economic impacts. Labor strikes in Puerto Rico lead to a state of emergency declared by the colonial governor, with National Guard troops maintaining essential services. Recent labor mobilizations in Puerto Rico result in trials for National Guard officers, soldiers remaining on active duty, and concessions to firemen's demands. In Bolivia, President Banzer's announcement of free elections in 1974 is seen as a move to prevent a coup and reflects his government's weakness amid internal resistance and economic challenges. A critical view of Banzer's regime is presented by Ruben Sanchez in Chile Hoy, denouncing the elections as a desperate maneuver. Meanwhile, in Cuba, the 20th anniversary of the Moncada barracks attack is commemorated, marking the start of Fidel Castro's revolutionary journey. Part II: The transformative impact of the Cuban Revolution is evident in initiatives such as the literacy campaign and efforts to bridge urban-rural divides through cultural integration and artistic development, influencing the broader Latin American literary and cultural landscape. Cuba's rich cultural heritage, including music, dance, ballet, theater, and cinema, reflects a blend of African and European influences. Despite historical associations with exploitation, these art forms have been harnessed in service of the revolution, with musicians composing songs celebrating revolutionary ideals and festivals promoting cultural exchange across Latin America. Files include CSVs of the annotated transcriptions and lists of places, people, organizations, subjects, and media sources mentioned in the radio program
Queering Collections: A survey of challenges in LGBTQIA-related collections in Big XII University Libraries
No full textPresentation given to Big XII LGBTQIA & Allies Summit in Lubbock, Texas. Hosted by Texas Tech University
Latin American Press Review, Program 1974-20, 1974 May 2
No full textPart I: The Latin American Press Review discusses the recent Colombian elections, highlighting Alfonso Lopez Michelsen's victory and the potential for significant political and economic changes. Lopez Michelsen's reformist agenda and his intention to form a government that includes moderate Conservatives signal a shift in Colombian politics. This development is viewed positively by neighboring countries like Peru, Panama, and Venezuela, and may lead to improved relations and regional cooperation. Meanwhile, in Nicaragua, the government has imposed censorship on the media to suppress reports of ongoing strikes, particularly among hospital and construction workers. The censorship decree reflects the government's attempt to control information and prevent further unrest. Additionally, in Mexico City, the union of petrochemical workers calls for the nationalization of Tamsa, a chemical plant controlled by the DuPont company despite being operated by Mexican workers since 1964. Excélsior presents a study advocating for the nationalization of Tamsa, a Mexican chemical plant controlled by DuPont despite Mexican ownership regulations. The study, delivered by Humberto De Leon, highlights DuPont's control over key decisions and profit extraction from Mexico. Union workers support nationalization to gain control over the plant's operations and profits. In Chile, economic troubles persist, with high foreign debt, inflation, and reduced agricultural production. The military junta's austerity measures await U.S. support, but concerns about aiding a post-Marxist government persist. Meanwhile, the Venezuelan Senate denounces human rights violations by the Chilean junta and calls for diplomatic actions against Chile. Files include CSVs of the annotated transcriptions and lists of places, people, organizations, subjects, and media sources mentioned in the radio program
Main Text Dataset: QPI_phase_target
No full textThis dataset contains the raw multi-angle lensfree microscopy measurements of a 200nm etched phase target, along with the LED calibration and acquisition metadata required for reconstruction. Only raw measurements and calibration files are included
Replication Data for: Field-Driven Simulations to Probe the Impact of Ionic Correlations on Solution Transport Coefficients in Binary, Ternary, and Reciprocal Quaternary Aqueous Electrolytes
No full textIonic correlations play a critical role in governing transport properties of mixed-salt aqueous electrolyte solutions, yet their quantitative characterization remains challenging, particularly for multicomponent aqueous systems. Here, we develop a general nonequilibrium molecular dynamics framework to efficiently compute Onsager transport coefficients and ionic correlations in mixed-salt aqueous solutions. Using field-driven simulations, we obtain accurate Onsager matrices for LiCl/ KCl, KCl/KBr, and LiBr/KCl electrolyte solutions with significantly reduced computational cost relative to equilibrium Green−Kubo methods. The framework enables direct assessment of how attractive cation−anion and repulsive like-ion interactions contribute to conductivity and salt diffusivity across compositions. While static ion pairing exhibits strong composition dependence, dynamic ion correlations remain nearly invariant, leading to constant deviations from Nernst−Einstein predictions. These results highlight the disconnect between static ion association and dynamic transport correlations, and they establish a transferable approach for analyzing ion transport in complex electrolyte environments relevant to separation processes and electrochemical systems
Working Paper: Cosolvents Disrupt Water H-bond Networks at Electrode Interfaces: a Surface-enhanced 2D IR Study
No full textIn electrochemical reactions, interfacial water restructuring can drive electrocatalytic activity. Characterizing interfacial water’s H-bond network structure and dynamics is one of the first steps towards obtaining a mechanistic understanding of electrochemical processes in aqueous environments. Here we use surface-enhanced two-dimensional infrared (SE 2D IR) spectroscopy to quantify the effect of dimethyl sulfoxide (DMSO) on water dynamics by measuring the picosecond frequency fluctuation of nitrile-based vibrational probes at a functionalized gold electrode. Pure water, biexponential dynamics show a fast component of ~1.0 ps corresponding to local spectral diffusion and a slower component of 9.9 ps attributed to H-bond exchange. DMSO considerably accelerates interfacial H-bond rearrangements. For example, at 20 mol% DMSO the slow component shortens to 1.8 ps, indicating a more labile H-bond networks. In stark contrast, DMSO slows dynamics in the bulk, consistent with long-lived water–DMSO microdomains. The interface vs bulk comparison shows that DMSO disrupts cooperative H-bonding of water by inducing disorder at the metal-liquid interface, speeding up H-bond rearrangements. Whereas in 3D bulk environment, long-lived microheterogeneity exhibits slower dynamics. The study demonstrates how cosolvents can be used to modulate interfacial water dynamics but also highlights the complexities of predicting solvent behavior at electrochemical interface
B12 Study
No full textThis is the CSV data, the Excel Worksheet Codebook, and the Excel Worksheet Survey for the B12 Stud
Main Text Dataset: Zebrafish head
No full textThis dataset contains the raw multi-angle lensfree microscopy measurements of a thin zebrafish head tissue sections, along with the LED calibration and acquisition metadata required for reconstruction. Only raw measurements and calibration files are included
Improving the electrical conductivity of Pt nanowires]{Improving the electrical conductivity of Pt nanowires deposited by focused electron beam induced deposition using thermal annealing
No full textDataset for manuscript titled "Improving the electrical conductivity of Pt nanowires]{Improving the electrical conductivity of Pt nanowires deposited by focused electron beam induced deposition using thermal annealing" (2025-12-19