Results 111 to 120 of about 64,076 (329)

Speckle Observations With PISCO in Calern (France): II. Astrometric Measurements of Visual Double Stars in 2017–2018 and New or Revised Orbits for A1913 AB, A1710, COU1394, BU1185, A122, A570, HU577, COU812, HU332, A2095 AB, and A884

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT We present relative astrometric measurements of visual double stars, made in 2017–2018 with the speckle camera PISCO at the 1‐m Epsilon telescope of the C2PU facility (Observatoire de la Côte d'Azur, Calern site). Our observing list contains orbital couples as well as double stars whose motion is still uncertain.
M. Scardia   +11 more
wiley   +1 more source

Pengembangan Media Pembelajaran Matematika Berbasis Game Interaktif Menggunakan Aplikasi Adobe Flash CS3 pada Materi Pokok Trigonometri Kelas X SMKN 10 Surabaya

open access: yesMUST: Journal of Mathematics Education, Science and Technology, 2017
This study aims to develop mathematics media learning based interactive games Adobe Flash CS3 application was valid, practical, feasible and effective. This research was a development research with reference to ADDIE development model (Analysis, Design ...
Siti Wulandari   +2 more
doaj  

Thioxanthone: A Benchmark Photocatalyst for Organic Synthesis

open access: yesChemCatChem, EarlyView.
Thioxanthone is a highly versatile and effective organocatalyst for photochemical applications, with its low‐toxicity, metal‐free structure driving growing interest in sustainable photocatalysis. Building on our previous 2021 review, this update covers advances from 2021–2025 in thioxanthone‐based synthetic organic photochemistry – excluding ...
Vera P. Demertzidou   +2 more
wiley   +1 more source

The Azidofunctionalization of Alkenes

open access: yesChemistryEurope, EarlyView.
The azidofunctionalization of alkenes offers a powerful strategy for synthesizing nitrogen‐containing compounds by installing both an azide and a second functional group in one step. This approach, employing photoredox catalysis, transition metals, and radical methods, is efficient, selective, and versatile, with applications in pharmaceuticals and ...
Pierre Palamini, Jerome Waser
wiley   +1 more source

THE INTEGRATION OF HISTORY, TECHNOLOGY, ENGINEERING, ART, AND SCIENCE INTO TRIGONOMETRY OF SENIOR HIGH/VOCATIONAL MIDDLE SCHOOL [PDF]

open access: yes, 2015
The 2013 curriculum contains the accomplishment of learning mindset: student-oriented learning that is active, interactive, networking learning pattern, team-based, using multimedia, corresponding to the characteristics of students, multidisciplinary ...
F. Vhantoria, Ningrum   +2 more
core  

Development of Novel Anticancer Pyrazolopyrimidinones Targeting Glioblastoma

open access: yesChemMedChem, Accepted Article.
Glioblastoma (GBM) is the most common and aggressive malignant grade IV brain tumour and is one of the most difficult types of brain cancer to treat with a high incidence of resistance to traditionally used chemotherapeutics. Pyrazolopyrimidinones are fused nitrogen‐containing heterocyclic systems which are a scaffold in several bioactive drugs and ...
Kate Byrne   +5 more
wiley   +1 more source

On the Density–Density Correlations of the Non‐Interacting Finite Temperature Electron Gas

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT The density–density correlations of the non‐interacting finite temperature electron gas are discussed in detail. Starting from the ideal linear density response function and utilizing general relations from linear response theory, known and novel expressions are derived for the pair correlation function, static structure factor, dynamic ...
Panagiotis Tolias   +2 more
wiley   +1 more source

A Non-Smooth Numerical Optimization Approach to the Three-Point Dubins Problem (3PDP)

open access: yesAlgorithms
This paper introduces a novel non-smooth numerical optimization approach for solving the Three-Point Dubins Problem (3PDP). The 3PDP requires determining the shortest path of bounded curvature that connects given initial and final positions and ...
Mattia Piazza   +2 more
doaj   +1 more source

Synthesis of 2‐Fluoropyrroles via [4 + 1] Cycloaddition of α,β‐Unsaturated Imines with In Situ‐Generated Difluorocarbene

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
2‐Fluoropyrroles are synthesized via the [4 + 1] cycloaddition of α,β‐unsaturated imines with difluorocarbene, generated in situ from trimethylsilyl 2,2‐difluoro‐2‐(fluorosulfonyl)acetate (TFDA). The α,β‐unsaturated imines are treated with TFDA in the presence of a Proton Sponge catalyst.
Kohei Fuchibe   +2 more
wiley   +1 more source

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