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Topic Review
Aries
Aries, recognized by the International Astronomical Union (IAU), is a constellation in the northern celestial hemisphere. Representing the ram from ancient Greek mythology, Aries is one of the twelve zodiac constellations and holds significance in astrology and astronomy alike. Its celestial prominence and position along the ecliptic make it a notable feature in the night sky, marking the vernal equinox and heralding the beginning of spring in the northern hemisphere.
  • 307
  • 29 Feb 2024
Biography
William C. Schwartz
William C. Schwartz (March 25, 1927 – July 23, 2000) was a civic leader in Central Florida and a pioneer in the laser industry. He was founder, President and Chairman of International Laser Systems, Inc., and later, Schwartz Electro-Optics, Inc., both based in Orlando, Florida. Schwartz was born in Lexington, Missouri. He attended Wentworth Military Academy in Lexington, then went on to earn a
  • 307
  • 08 Dec 2022
Topic Review
Biomedical Applications of Random Lasing
A disordered photonic medium is one in which scatterers are distributed randomly. Light entering such media experiences multiple scattering events, resulting in a “random walk”-like propagation. Micro- and nano-scale structured disordered photonic media offer platforms for enhanced light–matter interaction, and in the presence of an appropriate gain medium, coherence-tunable, quasi-monochromatic lasing emission known as random lasing can be obtained.
  • 306
  • 11 Sep 2023
Topic Review
Wide-Bandgap Semiconductors for Radiation Detection
An overview of wide-bandgap (WBG) semiconductors for radiation detection applications is given. The recent advancements in the fabrication of high-quality wafers have enabled remarkable WBG semiconductor device applications. The most common 4H-SiC, GaN, and β-Ga2O3 devices used for radiation detection are described.
  • 303
  • 04 Mar 2024
Topic Review
Guru Purnima
Guru Purnima (Poornima) is an eastern spiritual tradition dedicated to spiritual and academic teachers, who are evolved or enlightened humans, ready to share their wisdom, with very little or no monetary expectation, based on Karma Yoga. It is celebrated as a festival in Nepal by the Nepalese Hindus and Buddhists. This festival is traditionally observed by Hindus, Buddhists and Jains to revere their chosen spiritual teachers / leaders and express their gratitude. The festival is celebrated on the full moon day (Purnima) in the Hindu month of Ashadha (June–July) as it is known in the Hindu calendar of India and Nepal. This day marks the first peak of the lunar cycle after the peak of the solar cycle.
  • 302
  • 17 Oct 2022
Topic Review
List of Unnumbered Minor Planets: 2002 A–O
This is a partial list of unnumbered minor planets for principal designations assigned between 1 January 2002 and 31 July 2002 (A–O).
  • 300
  • 29 Nov 2022
Topic Review
Shallow Geological Structures of CE-4 Landing Site
China has successfully carried out five lunar exploration missions since 2007. These missions indicate that China has successfully implemented a three-step lunar exploration program of “orbiting, landing, and returning”. Among them, the Lunar Penetrating Radar (LPR) carried by the Yutu-2 rover in the Chang’E-4 (CE-4) mission is the only one still operating on the far side of the Moon.
  • 300
  • 31 Oct 2023
Topic Review
Canes Venatici
Canes Venatici, Latin for "hunting dogs," is a small northern constellation situated between Ursa Major and Boötes. It was introduced by Johannes Hevelius in the 17th century, representing the hunting dogs of Boötes, the Herdsman. The constellation is notable for hosting several interesting celestial objects, including the famous Whirlpool Galaxy (M51) and the Sunflower Galaxy (M63).
  • 298
  • 29 Feb 2024
Topic Review
Silicon and Silicon Carbide Recrystallization by Laser Annealing
Modifying material properties within a specific spatial region is a pivotal stage in the fabrication of microelectronic devices. Laser annealing emerges as a compelling technology, offering precise control over the crystalline structure of semiconductor materials and facilitating the activation of doping ions in localized regions. This obviates the necessity for annealing the entire wafer or device. 
  • 299
  • 29 Dec 2023
Topic Review
Magnetic Fluids
Magnetic fluids were historically the first active nano-dispersion material. Despite over half a century of research, interest in these nano-objects continues to grow every year. This is due to the impressive development of nanotechnology, the synthesis of nanoscale structures, and surface-active systems.
  • 299
  • 25 Jan 2024
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