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Economics of Software Product Development Collectives [PDF]

Technology Innovation Management Review, 2011
Where software product development occurs is shifting from single companies to groups or collectives of companies. In this article, we retrace the evolution of how software product development is organized and then offer insights into the economic ...
Michael Weiss
doaj  

Spectral irradiance curve calculations for any type of solar eclipse [PDF]

A simple procedure is described for calculating the eclipse function (EF), alpha, and hence the spectral irradiance curve (SIC), (1-alpha), for any type of solar eclipse: namely, the occultation (partial/total) eclipse and the transit (partial/annular ...
Deepak, A., Merrill, J. E.
core   +1 more source

Simvastatin Restores Uteroplacental Hemodynamics and Trophoblast Function in Obstetric Antiphospholipid Syndrome in a Placenta‐on‐a‐Chip Model

Advanced Healthcare Materials, EarlyView.
Simvastatin mitigates placental hypoperfusion in OAPS by ameliorating abnormal uteromaternal hemodynamics and enhancing trophoblast invasion via optimized endothelial cell interactions under pathological shear stress, as evidenced by results from a placenta‐on‐a‐chip platform.
Hongli Liu, Yuan Wang, Yanjun Cai, Ruixin Guo, Shunhua Liu, Tingting Chen, Tingting Sun, Ruiheng Huo, Tengwei Liu, Qingfeng Lv, Xietong Wang   +10 more
wiley   +1 more source

Detecting changes in along-path HF propagation during the April 2024 total solar eclipse with radio amateurs and low-cost instrumentation

Frontiers in Astronomy and Space Sciences
The total solar eclipse of April 8, 2024 presented a uniquely favorable circumstance for radio science. The Moon’s shadow passed near Canadian time standard station CHU, which transmits in the high frequency (HF, i.e., 3–30 MHz) band.
Maris Usis, Adam Goodman, Laura Schwartz, Laura Schwartz, David Kazdan, Kristina Collins, Kristina Collins, John Gibbons, Shashank Sastry, Lucy Ayres, Christopher Brault, Seth Byas, Michael Dompke, Michelle Dowell, Rowan Eggert, Aras Erdag, James Ervin, Dave Goodwin, Scarlett Nelson, Stephen Nichols, Olivia Tulgetske, Christian Zorman   +21 more
doaj   +1 more source

Dynamic Modulation of the Microenvironment Promotes Functional Maturation of Engineered Tissues

Advanced Healthcare Materials, EarlyView.
Engineered tissues lack the dynamic microenvironment of native tissues. A biocompatible, diffusible small molecule to dynamically modulate tissue microenvironments during maturation is used. Timing‐dependent modulation yields distinct outcomes, producing thicker, more native‐like blood vessels, stronger and more mature cardiac tissues, and optimized ...
Eric Silberman, Hadas Oved, Itay Gil, Amgad Marzook, Ester Sapir Baruch, Yahel Shechter, Assaf Shapira, Tal Dvir   +7 more
wiley   +1 more source

Sun, Earth and Moon. Relative movements and their consequences

Revista Eureka sobre Enseñanza y Divulgación de las Ciencias, 2011
Cuando se pregunta a los estudiantes por la causa de las estaciones suelen responder: “en verano estamos más próximos al Sol y en invierno estamos más lejos del Sol”.
Cardenete García, Sebastián
doaj  

A Modular Bioinstructive Platform Reveals Mechanistic Insights into Additive‐Free, Topography‐Driven Osteogenesis

Advanced Healthcare Materials, EarlyView.
Engineered microparticle topographies direct human mesenchymal stem cell osteogenesis without biochemical additives. This osteogenic commitment is driven by canonical Hedgehog signaling and followed by temporal IGF‐II engagement. Two‐photon polymerization demonstrates spatial control, enabling the engineering of topographical gradients that pattern ...
Fatmah I. Ghuloum, Leo A. H. Zeef, Lee A. Stevens, Marco A. N. Domingos, Susan J. Kimber, Mahetab H. Amer   +5 more
wiley   +1 more source

Multi‐Frequency SuperDARN HF Radar Observations of the Ionospheric Response to the October 2023 Annular Solar Eclipse

Geophysical Research Letters
An annular solar eclipse was visible on 14 October 2023 from 15:00–21:00 UT as its path traveled across North, Central, and South America. In this letter, we present the first multi‐frequency Super Dual Auroral Radar Network (SuperDARN) observations of ...
E. G. Thomas, S. G. Shepherd, B. S. R. Kunduri, D. R. Themens   +3 more
doaj   +1 more source

Copolymers of Poly(Butylene Trans‐1,4‐Cyclohexanedicarboxylate)/Pripol as New Biomaterial Platform for Small Diameter Vascular Graft

Advanced Healthcare Materials, EarlyView.
Electrospun tubular scaffolds from novel PBCE‐based copolyesters and blends were designed as candidates for small‐diameter vascular grafts. They combine defect‐free architecture, blood‐compatible surfaces, and mechanical properties comparable to native vessels.
Edoardo Bondi, Gabriele Obino, Giulia Guidotti, Alberto Sensini, Martijn van Griensven, Antonio Junior Lepedda, Nadia Lotti, Lorenzo Moroni   +7 more
wiley   +1 more source

Copper–Collagen Interactions Regulate the Mechanical and Invasive Properties of Tumor Spheroids

Advanced Healthcare Materials, EarlyView.
Ionic copper is investigated as a modulator of tumor spheroid growth and invasiveness in a 3D microfluidic glioblastoma model. Copper exposure alters metabolic activity, cytoskeletal organization, protrusion dynamics, and EMT‐related phenotypes in a dose‐ and timing‐dependent manner, revealing how copper bioavailability shapes tumor aggressiveness ...
Paula Guerrero‐López, Jose I. Garcia‐Peiro, Felipe Hornos, Jose L. Hueso, Jesus Santamaria, J. Manuel Garcia‐Aznar   +5 more
wiley   +1 more source