Long-distance frequency transfer over an urban fiber link using optical phase stabilization

We transferred the frequency of an ultra-stable laser over 86 km of urban fiber. The link is composed of two cascaded 43-km fibers connecting two laboratories, LNE-SYRTE and LPL in Paris area. In an effort to realistically demonstrate a link of 172 km without using spooled fiber extensions, we implemented a recirculation loop to double the length of the urban fiber link. The link is fed with a 1542-nm cavity stabilized fiber laser having a sub-Hz linewidth. The fiber-induced phase noise is measured and cancelled with an all fiber-based interferometer using commercial off the shelf pigtailed telecommunication components. The compensated link shows an Allan deviation of a few 10-16 at one second and a few 10-19 at 10,000 seconds

Accounting Transparency of Non-Governmental Organizations: A Bibliometric Analysis

As non-governmental organizations (NGOs) become increasingly i nvolved in international affairs, they face a growing deficit of confidence d ue to opacity of information environment. This opacity not only affects NG O financing, but also decreases public confidence in NGOs, affecting negati vely their sustainability. Due to the crucial role of transparency in NGOs, t he present study performs a bibliometric analysis of the research on accoun ting transparency.2019-2

Secretome of mesenchymal stem cells and its impact on Chronic Obstructive Pulmonary Disease

Chronic obstructive pulmonary disease (COPD) is characterized by irreversible loss of lung function that stem from two mechanisms, inflammation and senescence. Crosstalk between these two mechanisms accelerate the development of COPD, thus targeting these two pathways may offer benefits in the treatment of COPD. Growing amount of evidence have shown that mesenchymal stem cells as a promising candidate for the treatment of COPD. Over the years, many studies conducted to decipher the therapeutic effect of MSC in COPD and the mechanisms involve, in the hope of utilizing these cells as new therapeutic strategy for COPD. However, the cell-based therapy by using the MSC presented with many obstacles including low engraftment at the site of injury, the risk of microvascular occlusion, unwanted differentiation, and also the risk of malignant transformation. Recently, recently researchers begin to look at the possibility of using MSC derived extracellular vesicles as an alternative to MSC. Here we review the effect of MSC and MSC derived EV in modulating inflammation, and senescence in COPD. We also review current treatment and the side effect in COPD, and senolytic drugs, a new therapeutic strategy targeting the senescent cells

JAPAN INTERNATIONAL COOPERATION AGENCY (JICA) DAN PEMBANGUNAN INFRASTRUKTUR DI INDONESIA: STUDI KASUS PEMBANGUNAN SABO DAM DI YOGYAKARTA

Economic and political development of the nation state to be the case that menareik for the dynamics of international politics . One issue raised was the case of the transfer of foreign aid to the group of developed countries in third world countries . One of the classic and contemporary cases to date (2013 ) is a Japanese aid in supporting development in Indonesia , which is reflected on the support of the Japan International Cooperations Agency (JICA ) in infrastructure development sabo dam disaster . One of the projects that are the focus of JICA in the development sabo dam in Indonesia is the sabo dam project Merapi . This is important because not only the Merapi volcano, located in two provinces at once , namely Yogyakarta and Central Java , but also the characteristics of the mountain is very damaging ( high explosive ) so that the role of sabo dams Merapi become so important when compared to the sabo dam projects other in Indonesia . The role of JICA in the sabo dam project Merapi was not solely oriented on purely technical factors , but also politically . Sabo dam Merapi turned out to be part of the policy / foreign policy of Japan . In addition , the construction of sabo dam Merapi also be part of the interaction of transnational actors as the Japanese government through JICA continuously seeks to support the development of technical support , budget , and human resource development . From the political aspect of the implementation of JICA programs in development sabod am Merapi turned out to involve all actors of society presidents to dis ekitar Indonesia Merapi . Then each implementation can run a variety of synergistic relationship , although not yet fully effective . The description of the above descriptions are complete will be described in this researc