Results 61 to 70 of about 917,117 (339)

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

The use of budgets by small and medium enterprises in Cape Metropolis, South Africa [PDF]

open access: yesProblems and Perspectives in Management, 2016
Failure to budget has been identified as one of the main causes of failure of Small and Medium Enterprises (SMEs). This study seeks to determine the extent to which SMEs in the Cape Metropolis use budgets.
Caroline Chidinma Maduekwe, Peter Kamala
doaj   +1 more source

Characterization of Complex Stacking of Semiconductors Through Near Field Imaging and Spectroscopy

open access: yesAdvanced Materials, EarlyView.
SNOM imaging and spectroscopy on a mechanically cleaved facet is used to characterize the different layers of complex epitaxial heterostructures composed of a type II superlattice and highly doped semiconductors. Both the geometrical parameters of the stack and the optical properties of the individual layers and of the interfaces are retrieved, as well
Laure Tailpied   +8 more
wiley   +1 more source

Occupy Librarianship: 5 Variations on a Theme

open access: yesIn the Library with the Lead Pipe, 2011
Photo by Marion Siegel (we think) Introduction Over the past few months, several of us at Lead Pipe have been watching the Occupy Wall Street movement with interest. How does one protest something that seems to be part of the foundation of a culture? And
Kim Leeder
doaj  

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Late Budgets [PDF]

open access: yes
The budget forms the legal basis of government spending. If a budget is not in place at the beginning of the fiscal year, planning as well as current spending are jeopardized and government shutdown may result.
Asger L. Andersen   +2 more
core  

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

open access: yesAdvanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau   +9 more
wiley   +1 more source

Applying Forecasting Algorithms to Improve Budget Preparation Procedures in Government Units

open access: yesتنمیة الرافدین
It is necessary to use contemporary techniques to anticipate government budget items in light of the financial difficulties that governments face, especially scarce resources and growing spending demands.
Doaa Adreese Younis
doaj   +1 more source

La Comisión Local de Instrucción Primaria del Ayuntamiento de Sevilla 1833-1857

open access: yesCabás, 2020
Sumergirnos en las actas y presupuestos del Archivo Histórico Municipal de Sevilla nos ha permitido conocer mejor la situación de la educación primaria en la ciudad tras la caída del Antiguo Régimen. Las dificultades presupuestarias, la falta de escuelas,
Daza Sierra, A.J.
doaj   +1 more source

High‐Performance Air‐Stable Polymer Monolayer Transistors for Monolithic 3D CMOS logics

open access: yesAdvanced Materials, EarlyView.
A fibrillar polymer monolayer with a self‐confinement effect is demonstrated, in which aligned chains parallel the nanofiber axis. Employing a top‐gate CYTOP dielectric, this monolayer transistor achieves high mobility (7.12 cm2 V−1 s−1) and exceptional stability over 1260 days in air.
Miao Cheng   +13 more
wiley   +1 more source

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