Temat: PON - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: GPON, the Ultimate Pertinent of Next Generation Triple-play Bandwidth Resolution
Autorzy:: Sultan, D. M. S.
Arefin, Md. T.
Powiązania:: https://bibliotekanauki.pl/articles/309086.pdf
Data publikacji:: 2011
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: FTTH
Gigabit PON (GPON)
IPTV
OLT
ONU
PON
VoIP
Opis:: Optical transmission is getting more popular in the access network due to the increasing demand for bandwidth. New services like IP television (IPTV) transmission, video on demand (VoD) etc. over Internet together along high speed Internet access are confronting the demand of higher bandwidth at the customer end in today's Ethernet network backbone. Even though today's well deployed XDSL (i.e., VDSL/VDSL2+, SHDSL) solutions can satisfy bandwidth demand but are limited to the restriction regarding distance. Hereby, the suitable solution for high bandwidth demand with a long reach can be met by reaching optical cable to cus- tomer end directly. One of the possible ways would be to install passive optical network (PON). Gigabit PON (GPON) is the far-most advanced PON solution used by European and US providers while providers in Asia predominantly use EPON/GePON. This GPON is the basic technology to support the structure of the next-generation fiber to the home (FTTH) system. This paper provides an overview of such GPON solution associating its network architecture, transmission mechanisms and some key services.
Źródło:: Journal of Telecommunications and Information Technology; 2011, 2; 53-60
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The relation of PON1-L55M gene polymorphism and clinical manifestation of Behcets disease
Autorzy:: Dursun, Ahmet
Cicek, Salih
Keni, Fatih
Karakas-Celik, Sevim
Sezer, Tuna
Altinyazar, Cevdet
Powiązania:: https://bibliotekanauki.pl/articles/1039286.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: PON1 gene
Polymorphism
Behçet's disease
Opis:: Purpose: Behçet's disease is a multisystem disease characterized by recurrent oral and genital ulcers, relapsing uveitis, mucocutaneous, articular, gastrointestinal, neurologic, and vascular manifestations. Paraoxonase is believed to play an important role in protection of LDL and HDL particles from oxidation, in antioxidant effect against lipid peroxidation on cellular membranes, and in anti-inflammatory process. Lipid peroxidation and free oxygen radicals have been thought to play a role in pathogenesis of BD. The association of paraoxonase gene polymorphisms with Behçet's Disease in a group of Turkish patients with clinical manifestations and healthy controls has been investigated. Patients and Methods: Paraoxonase (PON-1-L55M) gene polymorphism was investigated in 50 Behcet patients and 50 healthy individuals with a PCR/RFLP method. Results: There were significant differences between patients and the control group in allele frequencies of the PON1 L55M polymorphism (p=0.04). Also, when patients were compared with the control group according to clinical manifestations, this statistical significance was getting sharper. Compared with the PON55 L allele, the M allele was associated with greater than 3.5 fold (OR 3.5, 95% CI 1.3-8.9) increased risk of ocular (OR 2.4, 95% CI 1.1-5.3), 2.4 fold joint and 3.1 fold (OR 3.1, 95% CI 1.1-8.4) central nervous system manifestations of BD. Conclusion The PON L55M gene polymorphism seemed to play a role in the pathogenesis of BD.
Źródło:: Acta Biochimica Polonica; 2014, 61, 2; 271-274
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Serum paraoxonase 1 activity and lipid metabolism parameter changes in Dachshunds with chronic mitral valve disease.Assessment of its diagnostic usefulness
Autorzy:: Kulka, M.
Garncarz, M.
Parzeniecka-Jaworska, M.
Kluciński, W.
Powiązania:: https://bibliotekanauki.pl/articles/2087879.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: PON1
chronic mitral valve disease
Dachshunds
Źródło:: Polish Journal of Veterinary Sciences; 2017, 4; 723-729
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Paraoxonase 1 and dietary hyperhomocysteinemia modulate the expression of mouse proteins involved in liver homeostasis
Autorzy:: Suszyńska-Zajczyk, Joanna
Jakubowski, Hieronim
Powiązania:: https://bibliotekanauki.pl/articles/1039222.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: Pon1
high-methionine diet
hyperhomocysteinemia
mouse liver proteome
Opis:: Homocysteine (Hcy), a product of methionine metabolism, is elevated by the consumption of a high-methionine diet that can cause fatty liver disease. Paraoxonase 1 (Pon1), a hydrolase expressed mainly in the liver and carried in the circulation on high-density lipoprotein, participates in Hcy metabolism. Low Pon1 activity is linked to fatty liver disease. We hypothesize that hyperhomocysteinemia and low Pon1 induce changes in gene expression that could impair liver homeostasis. To test this hypothesis, we analyzed the liver proteome of Pon1-/- and Pon1+/+ mice fed a high methionine diet (1% methionine in the drinking water) for 8 weeks using 2D IEF/SDS-PAGE gel electrophoresis and MALDI-TOF mass spectrometry. We identified seven liver proteins whose expression was significantly altered in Pon1-/- mice. In animals fed with a control diet, the expression of three liver proteins involved in lipoprotein metabolism (ApoE), iron metabolism (Ftl), and regulation of nitric oxide generation (Ddah1) was up-regulated by the Pon1-/- genotype. In mice fed with a high-methionine diet, expression of four liver proteins was up-regulated and of three proteins was down-regulated by the Pon1-/- genotype. The up-regulated proteins are involved in lipoprotein metabolism (ApoE), energy metabolism (Atp5h), oxidative stress response (Prdx2), and nitric oxide regulation (Ddah1). The down-regulated proteins are involved in energy metabolism (Gamt), iron metabolism (Ftl), and catechol metabolism (Comt). Expression of one protein (Ftl) was up-regulated both by the Pon1-/- genotype and a high-methionine diet. Our findings suggest that Pon1 interacts with diverse cellular processes - from lipoprotein metabolism, nitric oxide regulation, and energy metabolism to iron transport and antioxidant defenses - that are essential for normal liver homeostasis and modulation of these interactions by a high-methionine diet may contribute to fatty liver disease.
Źródło:: Acta Biochimica Polonica; 2014, 61, 4; 815-823
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Converged ultra-wideband and multi-level wired signal downstream transport over single wavelength in wavelength-division multiplexing passive optical network
Autorzy:: Ma, H
Wang, F.
Wang, W.
Zhang, X
Yu, Q.
Powiązania:: https://bibliotekanauki.pl/articles/174929.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: ultra-wideband (UWB)
multi-level amplitude switch keying (M-ASK)
wavelength-division multiplexing passive optical network (WDM-PON)
Opis:: Simultaneous providing services of ultra-wideband and wired signal over single wavelength can greatly decrease the complexity and reduce the costs of a wavelength-division multiplexing passive optical network. However, ultra-wideband signal occupies the spectrum range from 3.1 to 10.6 GHz, and a narrow idle frequency band (from 0 to 3.1 GHz) could be employed to transport wired signal with a limited rate. In this paper, we proposed a scheme to simultaneously provide ultra-wideband and wired services, in which the information rate of the wired signal is enhanced by employing a multi-level amplitude switch keying signal in the idle frequency band formed by ultra-wideband signal. In comparison with other advanced modulation formats used for wavelength-division multiplexing passive optical networks such as orthogonal frequency division multiplexing, multi-level amplitude switch keying signal can be easily received by using intensity modulation direct detection, which will greatly reduce the cost of end-users. Especially, if a multi-band ultra-wideband signal is substituted for the direct-sequence ultra-wideband signal, the available spectrum range to transport wired signal will be easily extended to 5 GHz as multi-band ultra-wideband signal has a narrower spectrum width and flexible center frequency, so 4-amplitude switch keying signal with a rate of 5 Gbaud will achieve an information rate of 10 Gbit/s.
Źródło:: Optica Applicata; 2015, 45, 4; 433-445
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Starzyński Roman Leon, pseud. Świętosław, Mazur (1890-1938), działacz niepodległościowy, major dyplomowany Wojska Polskiego, dyrektor naczelny Polskiej Agencji Telegraficznej i Polskiego Radia
Autorzy:: Kozak, Zygmunt.
Powiązania:: Polski Słownik Biograficzny 2004, t. 42, z. 4, s. 474-477
Data publikacji:: 2004
Tematy:: Starzyński, Roman L.
Starzyński Roman L. (1890-1939) biografia.
Związek Walki Czynnej od 1911 r.
Związek Strzelecki 1911-1914 r.
Komisariat Generalny Wojsk Polskich Rządu Narodowego. Komisariat Miejski 1914 r.
Legiony Polskie (1914-1917). I Brygada. 1 Pułk Piechoty. Oddział Wywiadowczy
Polska Organizacja Narodowa. Komisariat Generalny PON 1914 r.
Naczelny Komitet Narodowy. Departament Wojskowy NKN 1914 r.
Legiony Polskie (1914-1917). I Brygada. 5 Pułk Piechoty
Polska Organizacja Wojskowa 1918 r.
Dowództwo Okręgu Generalnego. Sztab DOG. Oddział II DOG 1918-1919 r.
Wyższa Szkoła Wojenna (Warszawa) 1920-1921 r.
5 Dywizja Piechoty WP 1920 r.
Dowództwo Okręgu Generalnego 1920 r.
Sztab Generalny WP. Oddział I SG WP 1921-1922 r.
36 Pułk Piechoty 1924-1925 r.
36 Pułk Piechoty Legii Akademickiej 1918-1939 r.
Sztab Generalny WP. Oddział IV SG WP 1926 r.
Sztab Generalny WP. Oddział I SG WP 1926 r.
Ministerstwo Spraw Wojskowych. Biuro Ogólno-Organizacyjne MSW. Wydział Organizacyjny MSW dowódca 1926-1929 r.
Polska Agencja Telegraficzna 1930-1933 r.
Pocztowe Przysposobienie Wojskowe. Zarząd Główny 1933 r.
Polskie Radio. Rada Nadzorcza PR 1933-1935 r.
Polskie Radio 1933-1936 r.
I wojna światowa (1914-1918)
Wojna 1919-1920 r. polsko-rosyjska
Wojsko
Dostawca treści:: Bibliografia CBW

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