Prevention and Treatment of Potentially Problematic Acute Wounds to Achieve Full Recovery by Using Platelet-Rich Plasma: Research Results

Summary The study presents the outcomes from platelet-rich plasma (PRP) application in treating acute and potentially problematic skin wounds from 2009 to 2016. Fifty-six hospitalized patients with acute skin wounds were divided into two groups: an experimental group of 30 patients treated with platelet-rich plasma and 26 controls with similar wounds, treated by conventional methods. After platelet-rich plasma treatment of 30 acute and potentially problematic wounds in the Experimental Group patients, 29 (96.7%) of the wounds healed for 16 weeks on average. After applying conventional treatment with surgical wound debridement, of the 26 acute, potentially problematic wounds in the controls, only 2 (7.6%) healed. Since acute and potentially problematic wounds are very likely to become chronic and difficult to heal, we recommend PRP application as a preventive treatment in patients at risk.

Monopole Contribution to the Stark Width of Hydrogenlike Spectral Lines in Plasmas: Analytical Results

One of the most reliable and frequently used methods for diagnosing various laboratory and astrophysical plasmas is based on the Stark broadening of spectral lines. It allows for determining from the experimental line profiles important parameters, such as the electron density and temperature, the ion density, the magnetic field, and the field strength of various types of the electrostatic plasma turbulence. Since, in this method, radiating atoms or ions are used as the sensitive probes of the above parameters, these probes have to be properly calibrated. In other words, an accurate theory of the Stark broadening of spectral lines in plasmas is required. In the present paper, we study, analytically, the monopole contribution to the Stark width of hydrogen-like spectral lines in plasmas. For this purpose, we use the formalism from paper by Mejri, Nguyen, and Ben Lakhdar. We show that the monopole contribution to the width has a non-monotonic dependence on the velocity of perturbing electrons. Namely, at relatively small electron velocities, the width decreases as the velocity increases. Then it reaches a minimum and (at relatively large electron velocities), as the velocity further increases, the width increases. The non-monotonic dependence of the monopole contribution to the width on the electron velocity is a counter-intuitive result. The outcome that at relatively large electron velocities, the monopole contribution to the width increases with the increase in the electron velocity is in a striking distinction to the dipole contribution to the width, which decreases as the electron velocity increases. We show that, in the situation encountered in various areas of plasma research (such as in magnetically-controlled fusion), where there is a relativistic electron beam (REB) in a plasma, the monopole contribution to the width due to the REB exceeds the corresponding dipole contribution by four orders of magnitude and practically determines the entire Stark width of hydrogenic spectral lines due to the REB.

Edward J. Smith (1927–2019)

Pioneer in space plasma research and AGU Fellow (1992)

Canine/feline serum or plasma deproteinization for amino acid analysis on Biochrom v1

This protocol describes the deproteinization process that all canine and feline serum and plasma research samples undergo prior to amino acid analysis with a Biochrom 30+ Amino Acid Analyzer at the Gastrointestinal Lab, Texas A&M University. L-norleucine is used as an internal standard.

Pengaruh Variasi Waktu Radiasi Plasma Pijar Korona Terhadap Viabilitas, Vigor Benih, Laju Perkecambahan dan Pertumbuhan Kangkung Darat (Ipomoea reptans poir)

Permintaan sayuran semakin lama semakin meningkat. Peningkatan permintaan sayuran harus diimbangi dengan produktivitas. Kangkung darat merupakan sayuran daun yang penting di kawasan Asia. Kandungan gizi kangkung cukup tinggi terutama vitamin A dan vitamin C. Saat ini teknologi plasma dapat digunakan dalam bidang pertanian. Plasma lucutan pijar korona merupakan sumber ion, elektron, dan radikal bebas. Udara bebas mengandung banyak gas yang tidak dapat terserap langsung oleh tanaman. Radiasi plasma mampu mengionisasi gas dari udara menjadi bentuk ion yang ditembakkan dalam suatu bahan. Penelitian ini bertujuan untuk mengetahui pengaruh variasi waktu radiasi plasma terhadap viabilitas, laju perkecambahan dan laju pertumbuhan biji kangkung darat. Penelitian dilakukan di Laboratorium CPR (Center Plasma Research), Universitas Diponegoro. Rancangan penelitian yang digunakan adalah rancangan acak lengkap (RAL), dengan perlakuan perbedaan lama radiasi waktu 0, 10 menit, dan 20 menit dan pengulangan 3 kali. Parameter yang diamati viabilitas, vigor benih, dan laju perkecambahan tanaman kangkung darat. Analisis data menggunakan uji ANOVA dan uji lanjut duncan dengan taraf signifikasi 0.05. Perlakuan radiasi selama 20 menit, 10 menit dan kontrol memberikan hasil rata – rata viabilitas 87%; 73%; dan 53%, laju perkecambahan 2,1 n/hari; 2,1 n/hari; dan 2,08 n/hari pada kangkung darat. Kata kunci : radiasi, plasma pijar korona, viabilitas, vigor benih

Applications of the COST Plasma Jet: More than a Reference Standard

The rapid advances in the field of cold plasma research led to the development of many plasma jets for various purposes. The COST plasma jet was created to set a comparison standard between different groups in Europe and the world. Its physical and chemical properties are well studied, and diagnostics procedures are developed and benchmarked using this jet. In recent years, it has been used for various research purposes. Here, we present a brief overview of the reported applications of the COST plasma jet. Additionally, we discuss the chemistry of the plasma-liquid systems with this plasma jet, and the properties that make it an indispensable system for plasma research.