New Findings Hint Towards Existence of Kaonic Nuclei and Hyper-nuclei

The current development and globalization of this decade have been marked by rapid technological advances. Human welfare, which is demanded to be better and more advanced, triggers humans to discover new findings. One of the new findings found by humans is the internet. Technological progress is one of several measures of the development and progress of a country. The logical consequence at this level is that a country must be able to respond and implement the principle of technological progress as a standard if it wants to obtain a progressive state label, regardless of whether human resources in a country are ready or not in facing challenges and consequences in the future. Online games are part of technological advances that use the internet with a mechanism to connect between players online. With this online game there are a lot of madharat and mafsadat especially for teenagers and online game players because this game can bring fatigue, illness, laziness and something negative. Perkembangan zaman dan globalisasi pada dasawarsa ini ditandai dengan kemajuan teknologi secara pesat. Kesejahteraan manusia yang dituntut untuk menjadi lebih baik dan maju memacu kreatifitas manusia dalam mencari temuan temuan baru. Temuan baru yang dihasilkan manusia adalah salah satunya internet. Kemajuan teknologi menjadi satu dari beberapa ukuran perkembangan dan kemajuan sebuah negara. Konsekwensi logis pada tataran ini, bahwa suatu negara harus mampu merespon dan menjalankan prinsip kemajuan teksnologi sebagai standar jika ingin memperoleh labelitas negara berkemajuan, terlepas apakah SDM dalam suatu negara tersebut siap atau tidak dalam menghadapi tantangan dan konsekwensi dikemudian hari.Game Online merupakan bagian dari kemajuan teknologi yang menggunakan internet dengan mekanisme menghubungkan antar pemain secara online. Dengan adanya game online ini banyak sekali madharat dan mafsadat terutama bagi para remaja dan para penggiat game online karena permainan ini bisa mendatangkan kelelahan,sakit,bermalas-malasan dan sesuatu yang bersifat negatif.

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Nuclear Processes Related to the Ap Stars and the Heaviest Chemical Elements

International Astronomical Union Colloquium ◽

10.1017/s0252921100080520 ◽

1976 ◽

Vol 32 ◽

pp. 169-182

Author(s):

B. Kuchowicz

Keyword(s):

Nuclear Physics ◽

Nuclear Reactions ◽

Chemical Elements ◽

Fission Products ◽

Abundance Pattern ◽

Isotopic Shifts ◽

Processed Material ◽

R Process ◽

Ap Stars ◽

Nuclear Processes

SummaryIsotopic shifts in the lines of the heavy elements in Ap stars, and the characteristic abundance pattern of these elements point to the fact that we are observing mainly the products of rapid neutron capture. The peculiar A stars may be treated as the show windows for the products of a recent r-process in their neighbourhood. This process can be located either in Supernovae exploding in a binary system in which the present Ap stars were secondaries, or in Supernovae exploding in young clusters. Secondary processes, e.g. spontaneous fission or nuclear reactions with highly abundant fission products, may occur further with the r-processed material in the surface of the Ap stars. The role of these stars to the theory of nucleosynthesis and to nuclear physics is emphasized.

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Dielectronic Recombination in the Average-Atom Model

International Astronomical Union Colloquium ◽

10.1017/s0252921100107730 ◽

1988 ◽

Vol 102 ◽

pp. 215

Author(s):

R.M. More ◽

G.B. Zimmerman ◽

Z. Zinamon

Keyword(s):

Detailed Balance ◽

Systematic Errors ◽

Dielectronic Recombination ◽

Rate Equations ◽

Strong Correlations ◽

Dense Plasmas ◽

Atom Model ◽

New Feature ◽

Average Atom Model ◽

Attachment Process

Autoionization and dielectronic attachment are usually omitted from rate equations for the non–LTE average–atom model, causing systematic errors in predicted ionization states and electronic populations for atoms in hot dense plasmas produced by laser irradiation of solid targets. We formulate a method by which dielectronic recombination can be included in average–atom calculations without conflict with the principle of detailed balance. The essential new feature in this extended average atom model is a treatment of strong correlations of electron populations induced by the dielectronic attachment process.

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Further studies on the ultrastructure of the cochlea

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100159746 ◽

1990 ◽

Vol 48 (3) ◽

pp. 440-441

Author(s):

Zhixian Wang ◽

Pinjin Zhu ◽

Jianhe Sun ◽

Xuezheng Song

Keyword(s):

Hair Cells ◽

Military Medicine ◽

Outer Hair Cells ◽

Apical Surface ◽

Epithelial Surface ◽

Hearing Research ◽

New Findings ◽

Fine Structures ◽

Temporal Bones ◽

Accurate Observation

Hearing research is important not only for clinical, professional and military medicine, but also for toxicology, gerontology and genetics. Ultrastructure of the cochlea attracts much attention of electron microscopists, (1―3) but the research lags far behind that of the other parts of the organnism. On the basis of careful microdissection, technical improvment and accurate observation, we have got some new findings which have not been reported in the literature.We collected four cochleas from human corpses. Temporal bones dissected 1 h after death and cochleas perfused with fixatives 4 h after death were good enough in terms of preservation of fine structures. SEM:The apical surface of OHCs (Outer hair cells) and DTs (Deiters cells) is narrower than that of IPs (Inner pillar cells). The mosaic configuration of the reticular membrane is not typical. The stereocilia of IHCs (Inner hair cells) are not uniform and some kinocilia could be seen on the OHCs in adults. The epithelial surface of RM (Reissner’s membrane) is not smooth and no mesh could be seen on the mesothelial surface of RM. TEM.

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Insights into the biochemical and functional characterization of sortase E transpeptidase of Corynebacterium glutamicum

Biochemical Journal ◽

10.1042/bcj20190812 ◽

2019 ◽

Vol 476 (24) ◽

pp. 3835-3847 ◽

Cited By ~ 1

Author(s):

Aliyath Susmitha ◽

Kesavan Madhavan Nampoothiri ◽

Harsha Bajaj

Keyword(s):

Protein Engineering ◽

Cell Attachment ◽

Functional Characterization ◽

Protein Structures ◽

Structural Similarity ◽

Surface Proteins ◽

Sortase A ◽

Peptide Cleavage ◽

New Findings

Most Gram-positive bacteria contain a membrane-bound transpeptidase known as sortase which covalently incorporates the surface proteins on to the cell wall. The sortase-displayed protein structures are involved in cell attachment, nutrient uptake and aerial hyphae formation. Among the six classes of sortase (A–F), sortase A of S. aureus is the well-characterized housekeeping enzyme considered as an ideal drug target and a valuable biochemical reagent for protein engineering. Similar to SrtA, class E sortase in GC rich bacteria plays a housekeeping role which is not studied extensively. However, C. glutamicum ATCC 13032, an industrially important organism known for amino acid production, carries a single putative sortase (NCgl2838) gene but neither in vitro peptide cleavage activity nor biochemical characterizations have been investigated. Here, we identified that the gene is having a sortase activity and analyzed its structural similarity with Cd-SrtF. The purified enzyme showed a greater affinity toward LAXTG substrate with a calculated KM of 12 ± 1 µM, one of the highest affinities reported for this class of enzyme. Moreover, site-directed mutation studies were carried to ascertain the structure functional relationship of Cg-SrtE and all these are new findings which will enable us to perceive exciting protein engineering applications with this class of enzyme from a non-pathogenic microbe.

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