93 research outputs found

    Keberadaan Kasta Dalam Masyarakat Adat Di Sumba Timur Dalam Konteks Hak Asasi Manusia

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    Hasil Penelitian ini menunjukan bahsa sistem Maramba/Ata (Raja/Budak)  di Kampung Raja Prailiu sudah ada sejak zaman dahulu hingga saat ini, karna adanya sistem Maramba/Ata (Raja/Budak) sehingga adanya kontraversi dengan Hak Asasi Manusia (HAM) yang diatur dalam Undang-Undang nomor 39 Tahun 1999 tentang Hak Asasi Manusia. Sistem Maramba/Ata (Raja/Budak) yang memiliki aturan dan mekanisme adat tersendiri sehingga belum adanya pembebasan Hak Asasi Manusia yang utuh dalam hal ini belum adanya kemerdekaan pikiran, hati nurani dan beragama. Keberadaan kasta ini masih sangat kental sehingga membuat pemerintah masih sangat sulit untuk merespon masyarakat adat dan membuat pemerintah masih kesulitan untuk melakukan penyuluhan kemasyarakat setempat

    Quasi-single-mode homogeneous 31-core fibre

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    ReView Bamboozled: Archival Affects

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    The first time the author watched Spike Lee’s Bamboozled (2000), the film literally moved her body 3000 miles. In this video reView, Bamboozled moves the author again, this time to the very space that gives the film its continued, urgent relevance: the archive. In moving and being moved, the author surprisingly discovers a little-known archival collection in Buffalo, NY that directly relates to Lee’s film and its usage of black memorabilia. ReVIEW BAMBOOZLED: ARCHIVAL AFFECTS chronicles the author’s journey into this archive and her remarkable discussion with the archivist and her research assistant about the stakes of that collection, Spike Lee’s film, and the affects of both. It also reViews archival practice, showing the tensions of working with what the archivist acknowledges to be, in some ways, “the uncollectible.

    PUM1 Mediates the Posttranscriptional Regulation of Human Fetal Hemoglobin

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    The fetal-to-adult hemoglobin switching at about the time of birth involves a shift in expression from γ-globin to β-globin in erythroid cells. Effective re-expression of fetal γ-globin can ameliorate sickle cell anemia and β-thalassemia. Despite the physiological and clinical relevance of this switch, its posttranscriptional regulation is poorly understood. Here, we identify Pumilo 1 (PUM1), an RNA-binding protein with no previously reported functions in erythropoiesis, as a direct posttranscriptional regulator of β-globin switching. PUM1, whose expression is regulated by the erythroid master transcription factor erythroid Krüppel-like factor (EKLF/KLF1), peaks during erythroid differentiation, binds γ-globin messenger RNA (mRNA), and reduces γ-globin (HBG1) mRNA stability and translational efficiency, which culminates in reduced γ-globin protein levels. Knockdown of PUM1 leads to a robust increase in fetal hemoglobin (∼22% HbF) without affecting β-globin levels in human erythroid cells. Importantly, targeting PUM1 does not limit the progression of erythropoiesis, which provides a potentially safe and effective treatment strategy for sickle cell anemia and β-thalassemia. In support of this idea, we report elevated levels of HbF in the absence of anemia in an individual with a novel heterozygous PUM1 mutation in the RNA-binding domain (p.(His1090Profs∗16); c.3267_3270delTCAC), which suggests that PUM1-mediated posttranscriptional regulation is a critical player during human hemoglobin switching

    32-core dense SDM unidirectional transmission of PDM-16QAM signals over 1600 km using crosstalk-managed single-mode heterogeneous multicore transmission line

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    We demonstrate 32-core dense space-division multiplexed (DSDM) unidirectional transmission of PDM-16QAM 20-WDM signals over 1644.8km employing a low-crosstalk single-mode heterogeneous 32-core fiber in a partial recirculating-loop system

    32-core inline multicore fiber amplifier for dense space division multiplexed transmission system

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    We present a high-core-count SDM amplifier, i.e. 32-core multicore-fiber amplifier, in a cladding-pumped configuration. An average gain of 17dB and NF of 7dB is obtained for -5dBm input signal power in the wavelength range 1544nm-1564nm

    Characteristics of homogeneous multi-core fibers for SDM transmission

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    We describe optical data transmission systems using homogeneous, single-mode, multi-core fibers (MCFs). We first briefly discuss space-division multiplexing (SDM) fibers, observing that no individual SDM fiber offers overwhelming advantages over bundles of single-mode fiber (SMF) across all transmission regimes. We note that for early adoption of SDM fibers, uncoupled or weakly coupled fibers which are compatible with existing SDM infrastructure have a practical advantage. Yet, to be more attractive than parallel SMF, it is also necessary to demonstrate benefits beyond improved spatial spectral efficiency. It is hoped that the lower spread of propagation delays (skew) between spatial channels in some fibers can be exploited for improved performance and greater efficiency from hardware sharing and joint processing. However, whether these benefits can be practically harnessed and outweigh impairments or effort to mitigate cross talk between spatial channels is not yet clear. Hence, focusing on homogeneous MCFs, we first describe measurements and simulations on the impact of inter-core cross talk in such fibers before reporting experimental investigation into the spatial channel skew variation with a series of the experimental results including a comparison with SMF in varying environmental conditions. Finally, we present some system and transmission experiments using parallel recirculating loops that enable demonstration of both multi-dimensional modulation and joint digital processing techniques across three MCF cores. Both techniques lead to increased transmission reach but highlight the need for further experimental analysis to properly characterize the potential benefits of correlated propagation delays in such fibers
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