scholarly journals Light Pollution Observations in Indonesia

2021 ◽  
Author(s):  
Agustinus Gunawan Admiranto ◽  
Rhorom Priyatikanto ◽  
Siti Maryam ◽  
Elyyani ◽  
Siti Kurniawati ◽  
...  
Keyword(s):  
Space Science ◽  
High Light ◽  
Light Pollution ◽  
Science Center ◽  
Low Light ◽  
West Java ◽  
West Kalimantan ◽  
The World ◽  
West Sumatra ◽  
Animal Habitat

Light pollution is a growing concern in the world. It affects many walk of lives, including human health, the degradation of nocturnal animal habitat, and the inability of the astronomers to observe dimmer objects. We in Space Science Center of LAPAN (Indonesian National Institute of Aeronautics and Space) try to mitigate this through a coordinated observation of light pollution using Sky Quality Meter equipments which are located in several LAPAN’s stations [Agam (West Sumatra), Pontianak (West Kalimantan), Sumedang (West Java), Garut (West Java), Pasuruan (East Java), Kupang (East Nusa Tenggara), and Biak (Papua)]. The observations has been conducted since 2018 in stationary and moving modes, and the results are then sent to a central database which is located in Space Science Center in Bandung (West Java). The results showed that there are some variations of light pollution across Indonesia. In this respect most of the stations have moderate pollution as can be seen from the values of Biak, Agam, Sumedang, and Pontianak (20.0, 19.5, 19.6, and 17.7 mpsas respectively). On the other hand, the stations which are located near or in cities have high light pollution (Bandung and Pasuruan with 17.1 and 18.0 mpsas, respectively). A particular station (Garut) has low light pollution (20.6 mpsas). The data of these observations are presented in a website to be accessed by interested parties.

scholarly journals The rôle of planetaria: The Library of Alexandria Planetarium Science Center

2009 ◽  
Vol 5 (S260) ◽  
Author(s):  
Hoda S. El-Mitaky
Keyword(s):  
Public Interest ◽  
Public Awareness ◽  
Light Pollution ◽  
The Moon ◽  
Science Center ◽  
The World ◽  
Ancient Times

AbstractIn ancient times the stars and the Moon were humans' only guide to cross the seas and explore the depths of the deserts. With the use of modern technological gadgets, and the increasingly light pollution, citizens of the world stopped looking at the heavens. How can planetaria play a rôle in reviving public interest in astronomy? How can the beauty of astronomy play a rôle in luring the youth to pursue a career in science? How can astronomy play a rôle in raising public awareness about preserving the environment? Moreover, how can astronomy play a rôle in the dialogue among civilisations?

scholarly journals Samaun Bakri: Nationalist Portrait in 1925-1948

2018 ◽  
Vol 2 (1) ◽  
pp. 44-54
Author(s):  
Abdul Salam
Keyword(s):  
Colonial Period ◽  
Dutch Government ◽  
West Java ◽  
Japanese Occupation ◽  
Political Career ◽  
Historical Method ◽  
Islamic Movement ◽  
The Press ◽  
The World ◽  
West Sumatra

Samaun Bakri is one of many figures from Nagari Kurai Taji Pariaman West Sumatra, which enliven the national political stage. His movement in the Dutch Colonial period, began when he attended in Sumatra Thawalib Padang Panjang. The Kuminih movement, fronted by Communist propagandists, has changed its paradigm of thinking from moderate to radical. Sometimes Samaun is often the target of arrest with allegations of infidelity. This paper is compiled based on historical method, consist of; heuristics, criticism, interpretation, and historiography. The world of Islamic movement and modernization has indeed influenced the way of Samaun thinking. Several times, he was involved in the press, ranging from Persamaan, Sasaran, Penabur, and often wrote harsh criticisms of the Dutch government. After the Silungkang incident, he crossed over to the Partai Nasional Indonesia (PNI). During the Japanese occupation, he was involved in the management of PUTERA and Jawa Hokokai. His political career post-independence immediately dashed, when he served as Deputy Governor of West Java in 1946, KNIP members represent West Java, and became Deputy Resident of Banten in 1946-1948.

Changes in the Stoichiometry of Photosystem II Components as an Adaptive Response to High-Light and Low-Light Conditions during Growth

1986 ◽  
Vol 41 (5-6) ◽  
pp. 597-603 ◽  
Author(s):  
Aloysius Wild ◽  
Matthias Höpfner ◽  
Wolfgang Rühle ◽  
Michael Richter
Keyword(s):  
Photosystem Ii ◽  
Functional Organization ◽  
Photosynthetic Apparatus ◽  
High Light ◽  
Molar Ratio ◽  
Light Conditions ◽  
Low Light ◽  
Pigment System ◽  
Transport Chain ◽  
The One

The effect of different growth light intensities (60 W·m-2, 6 W·m-2) on the performance of the photosynthetic apparatus of mustard plants (Sinapis alba L.) was studied. A distinct decrease in photosystem II content per chlorophyll under low-light conditions compared to high-light conditions was found. For P-680 as well as for Oᴀ and Oв protein the molar ratio between high-light and low-light plants was 1.4 whereas the respective concentrations per chlorophyll showed some variations for P-680 and Oᴀ on the one and Oв protein on the other hand.In addition to the study of photosystem II components, the concentrations of PQ, Cyt f, and P-700 were measured. The light regime during growth had no effect on the amount of P-700 per chlorophyll but there were large differences with respect to PQ and Cyt f. The molar ratio for Cyt f and PQ between high- and low-light leaves was 2.2 and 1.9, respectively.Two models are proposed, showing the functional organization of the pigment system and the electron transport chain in thylakoids of high-light and low-light leaves of mustard plants.

Analisis Penerapan Terapi Murottal Pada Ibu Post Seksio Sesaria Atas Indikasi Riwayat Penyakit Jantung (Supraventricular Tachycardia) : Laporan Kasus

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Rini Rahmayanti
Keyword(s):  
Postoperative Pain ◽  
Cesarean Section ◽  
Complementary Therapies ◽  
Health Workers ◽  
Cesarean Section Delivery ◽  
Common Complaint ◽  
Surgical Pain ◽  
The World ◽  
West Sumatra ◽  
History Of

In the world according to WHO 2014 there are (16%) SEKSIO SESARIA deliveries that exceed the recommended limits. Whereas in Indonesia according to the 2013 Riskesdas the method of cesarean section surgery was 9.8% of the total 49,603 births throughout 2010-2013. Based on the 2013 Riskesdas data in West Sumatra the rate of West Sumatra cesarean section delivery (14%) where the figure is almost close to the maximum WHO standard. One common complaint felt by post seksio sesaria mothers is surgical pain. The purpose of this study was to determine the analysis of the application of murottal therapy in post-secsio caesarea women on the indication of a history of heart disease to reduce postoperative pain in the obstetric room of RSUP Dr. M. Djamil Padang. Nursing implementation in accordance with the objectives and interventions that have been formulated. The implementation is carried out for 5 days, from 3-7 June 2018. Ny. A listens to the explanation, and demonstrates the explanation given, especially murottal Al-Qur'an therapy to reduce postoperative pain. From the results of observations and interviews that the author did, Ny.A understood what had been explained and demonstrated. It is hoped that this research will be useful for health workers to be able to apply murottal therapy as one of the complementary therapies in treating post-cesarean patients.

scholarly journals Controlling Light Pollution in Chile: A Status Report

2001 ◽  
Vol 196 ◽  
pp. 39-48 ◽  
Author(s):  
Malcolm G. Smith
Keyword(s):  
Developing Countries ◽  
International Organizations ◽  
Radio Astronomy ◽  
Status Report ◽  
Light Pollution ◽  
Critical Importance ◽  
The World ◽  
Control Light ◽  
Basic Level

A basic-level summary is provided of work since late 1993 to control light pollution in Chile. The purpose of this article is to stimulate such work inside Chile and to promote good lighting in developing countries in general. Chile is selected as the case study because of its critical importance to optical and radio astronomy, and the related economic and cultural benefits for Chile and the world. Examples are presented in some detail in order to illustrate adjustments that have been made to accommodate local scientific, cultural and economic realities and to show that it is necessary to anticipate the issues involved in controlling light pollution several decades before it would otherwise become a problem. It is hoped that international organizations such as the IAU, the IDA and the CIE can soon promote programmes in Chile that can serve as pilot programmes for other parts of the developing world.

scholarly journals Effects of alkalinity and salinity at low and high light intensity on hydrogen isotope fractionation of long-chain alkenones produced by <i>Emiliania huxleyi</i>

2017 ◽  
Vol 14 (24) ◽  
pp. 5693-5704 ◽  
Author(s):  
Gabriella M. Weiss ◽  
Eva Y. Pfannerstill ◽  
Stefan Schouten ◽  
Jaap S. Sinninghe Damsté ◽  
Marcel T. J. van der Meer
Keyword(s):  
Light Intensity ◽  
Environmental Conditions ◽  
Hydrogen Isotope ◽  
Isotope Fractionation ◽  
Emiliania Huxleyi ◽  
High Light Intensity ◽  
High Light ◽  
Light Conditions ◽  
Low Light ◽  
Long Chain

Abstract. Over the last decade, hydrogen isotopes of long-chain alkenones have been shown to be a promising proxy for reconstructing paleo sea surface salinity due to a strong hydrogen isotope fractionation response to salinity across different environmental conditions. However, to date, the decoupling of the effects of alkalinity and salinity, parameters that co-vary in the surface ocean, on hydrogen isotope fractionation of alkenones has not been assessed. Furthermore, as the alkenone-producing haptophyte, Emiliania huxleyi, is known to grow in large blooms under high light intensities, the effect of salinity on hydrogen isotope fractionation under these high irradiances is important to constrain before using δDC37 to reconstruct paleosalinity. Batch cultures of the marine haptophyte E. huxleyi strain CCMP 1516 were grown to investigate the hydrogen isotope fractionation response to salinity at high light intensity and independently assess the effects of salinity and alkalinity under low-light conditions. Our results suggest that alkalinity does not significantly influence hydrogen isotope fractionation of alkenones, but salinity does have a strong effect. Additionally, no significant difference was observed between the fractionation responses to salinity recorded in alkenones grown under both high- and low-light conditions. Comparison with previous studies suggests that the fractionation response to salinity in culture is similar under different environmental conditions, strengthening the use of hydrogen isotope fractionation as a paleosalinity proxy.

scholarly journals Physiological responses of two tropical weeds to shade: I. Growth and biomass allocation

1999 ◽  
Vol 34 (6) ◽  
pp. 944-952 ◽  
Author(s):  
Moacyr Bernardino Dias-Filho
Keyword(s):  
Leaf Area ◽  
Weed Management ◽  
Dry Mass ◽  
High Light ◽  
Low Light ◽  
Light Regimes ◽  
Leaf Dry Mass ◽  
Lower Ability ◽  
Total Plant ◽  
Plant Dry Mass

Ipomoea asarifolia (Desr.) Roem. & Schultz (Convolvulaceae) and Stachytarpheta cayennensis (Rich) Vahl. (Verbenaceae), two weeds found in pastures and crop areas in Brazilian Amazonia, were grown in controlled environment cabinets under high (800-1000 µmol m-² s-¹) and low (200-350 µmol m-² s-¹) light regimes during a 40-day period. For both species leaf dry mass and leaf area per total plant dry mass, and leaf area per leaf dry mass were higher for low-light plants, whereas root mass per total plant dry mass was higher for high-light plants. High-light S. cayennensis allocated significantly more biomass to reproductive tissue than low-light plants, suggesting a probably lower ability of this species to maintain itself under shaded conditions. Relative growth rate (RGR) in I. asarifolia was initially higher for high-light grown plants and after 20 days started decreasing, becoming similar to low-light plants at the last two harvests (at 30 and 40 days). In S. cayennensis, RGR was also higher for high-light plants; however, this trend was not significant at the first and last harvest dates (10 and 40 days). These results are discussed in relation to their ecological and weed management implications.

scholarly journals Atlas of Yellowstone, 2nd Edition: Celebrating 150 Years of the World’s First National Park, 1872–2022

2019 ◽  
Vol 1 ◽  
pp. 1-1
Author(s):  
W. Andrew Marcus ◽  
James E. Meacham ◽  
Justin T. Menke ◽  
Aleathea Y. Steingisser ◽  
Ann E. Rodman
Keyword(s):  
Key Management ◽  
Yellowstone National Park ◽  
National Park ◽  
Scientific Data ◽  
Light Pollution ◽  
Natural Setting ◽  
The World ◽  
History Of ◽  
The Many ◽  
Management Issues

<p><strong>Abstract.</strong> The Second Edition of the Atlas of Yellowstone will celebrate the 150-year history of the world’s first national park – and reflect on the future of Yellowstone and its evolving place in the world. Like the first Atlas of Yellowstone published in 2012, the Second Edition will provide a comprehensive view of the human and natural setting of Yellowstone National Park. Also like the First Edition, the new edition will portray variations over space and time, explore human-nature interactions throughout the region, document connections of Yellowstone to the rest of the world, and &amp;ndash; ultimately &amp;ndash; guide the reader to a deeper appreciation of Yellowstone.</p><p>Beyond that, the new edition will provide much expanded coverage of the park’s history. Readers will better understand the many different ways in which the creation of Yellowstone National Park has preserved and altered the landscapes and ecology of Yellowstone and conservation thought and practice, both locally and around the world.</p><p>The new atlas will also reflect advances in scientific data collection, knowledge, and insight gained since publication of the first edition. New topic pages will address key management issues ranging from increased visitor impact to wildlife disease to light pollution. In addition, many of the 850 existing graphics will be updated, reimagined, or replaced by new graphics that capture the remarkable wealth of data that has become available since the First Edition. Whether it be tracking of individual wolves, ecosystem imagery from space, or detailed visitor surveys &amp;ndash; new data provide insights that could not be graphically displayed before.</p><p>The Second Edition celebrates 150 years of America’s best idea and what that has meant to the world. The significance of Yellowstone National Park to conservation, scholarship, and the human experience is enormous, and deserves a volume that captures that importance.</p>

scholarly journals Folk-Based Farm Waste with Akar Wangi (Vetiveria zizanioides (L.) Nash) Beautiful to look at and Inhale Fragrance from Garut West Java

2020 ◽  
Vol 20 (1) ◽  
pp. 1
Author(s):  
Ine Shinta Dewi ◽  
Retno Latifah ◽  
Putri Wahyu Prasetyaningrum
Keyword(s):  
Distillation Process ◽  
Vetiveria Zizanioides ◽  
West Java ◽  
The World ◽  
Farm Waste

The Fragrant root is a plant that can produce fragrant root oil through the distillation process. Indonesia is one of the largest producers of fragrant root oil in the world, the center of producing fragrant root oil in Indonesia is in Garut Regency. From the results of the study, in addition to producing pure oil, fragrant root waste can also be processed into handicrafts of secondary needs such as bags and souvenirs by weaving

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