TWO SPECIES OF GENUS CAREX SECT. SPIROSTACHYAE (CYPERACEAE) NEW TO BOSNIA AND HERZEGOVINA

UDK: 582.542.11(497.6) During systematic field research of genus Carex in Bosnia and Herzegovina in the period of 2014-2018. two species from sect. Spirostachyae Drejer ex L. H. Bailey have been recorded for the first time in the flora of the country: Carex extensa Gooden. and Carex punctata Gaudin. While C. punctata is a quite common species growing in damp and wet habitat types over serpentine substrates in Central Bosnia, C. extensa is recorded as very rare along the Adriatic Sea coast on Klek Peninsula (southern Bosnia and Herzegovina), and recognized as critically endangered (CR) in the country.

Risk assessment approach to regulatory compliance challenges in aging facilities: A case study of Harlypet Oil and Gas Nigeria Limited Facilities

Compliance with new regulations in old plants remains a recurring challenge because of negative outcome of incidents. This challenge stems from uncertainties in the facilities’ integrity, owing to inadequacy of existing integrity-validating technologies. Process facilities deteriorate through cyclic operations, while encroachments from expanding population characteristically raise the risk-levels, leading to need for higher grade materials to meet operational expansions. Retroactive compliance becomes a nightmare with every new regulation without a robust cost-to-benefit assurance. This paper discusses two-phased qualitative and quantitative risk modelling approach through systematic field-data-gathering, hazards identification and analysis by a twelve-man risk management engineers. The methodology successfully computed a “health-check" of the facility’s compliance to new regulations, 17 high-risk-hazards were extracted from 42 potential hazards and successfully established varied individual risk levels ranging from 4.07E-06 to 1.64E-04/year. Also, risks ranged from 1.00E-04 to 5.00E-05/year of tolerable risks to the environment, society, and business were recorded across the facility while, 22 risk-mitigation actions were recommended.

Three dimensional mirror symmetry beyond ADE quivers and Argyres-Douglas theories

Mirror symmetry, a three dimensional $$ \mathcal{N} $$ N = 4 IR duality, has been studied in detail for quiver gauge theories of the ADE-type (as well as their affine versions) with unitary gauge groups. The A-type quivers (also known as linear quivers) and the associated mirror dualities have a particularly simple realization in terms of a Type IIB system of D3-D5-NS5-branes. In this paper, we present a systematic field theory prescription for constructing 3d mirror pairs beyond the ADE quiver gauge theories, starting from a dual pair of A-type quivers with unitary gauge groups. The construction involves a certain generalization of the S and the T operations, which arise in the context of the SL(2, ℤ) action on a 3d CFT with a U(1) 0-form global symmetry. We implement this construction in terms of two supersymmetric observables — the round sphere partition function and the superconformal index on S2 × S1. We discuss explicit examples of various (non-ADE) infinite families of mirror pairs that can be obtained in this fashion. In addition, we use the above construction to conjecture explicit 3d $$ \mathcal{N} $$ N = 4 Lagrangians for 3d SCFTs, which arise in the deep IR limit of certain Argyres-Douglas theories compactified on a circle.

Field Regional Research of Cherkasy Region in the Expeditionary Activity of Pereiaslav-Khmelnytsky State Historical Museum (the 1960s–80s)

The article covers the expeditionary activities of employees of Pereiaslav-Khmelnytsky State Historical Museum in Cherkasy region in the 1960s–80s. The relevance of the study is determined by the lack of comprehensive scholarly research, which would enable a full-scale historical analysis of the problem.Historical studies of separate regions are a promising area of modern historical science. The attention of regional scholars (historians, ethnologists, sociologists, art critics) is drawn to the processes of regional development in natural-geographic, historical, ethnocultural, political, sociocultural, and other contexts. Understanding the regional specifics of individual territories of the Middle Dnieper Ukraine became an important task of systematic ethnographic field research conducted by Pereiaslav-Khmelnytsky State Historical Museum in the 1960s–70s. This was due to the need to complete the exposition of the newly created Museum of Folk Architecture and Everyday Life of the Middle Dnieper Ukraine with the monuments of folk architecture and ethnographic materials. The first of them, given the territorial proximity, were the studied settlements of Kyiv region. The experience gained encouraged the museum staff to expand the scope of systematic field research. Among the various districts of the Middle Dnieper Ukraine, Cherkasy region was of a local attraction.The article also considers books of orders and periodicals. Attention is paid to periodization, topics, composition of the participants, and results of the expeditions. It is noted that the main task of these expeditions was to collect items of museum value to complete ethnographic collections. The conclusion about the high efficacy of the relevant expeditionary activity of the museum is made.

Accuracy and completeness of a near real-time citizen science-based multi-disaster inventory in the Rwenzori Mountains, Uganda

<p>Accurate and complete inventory of natural hazard occurrence and their level of impact is a key first step to risk assessment, but it remains a challenge, especially for high frequency low impact events that rarely makes it to the news media. This challenge is even greater in rural areas of developing countries such as Uganda, where limited IT facilities prevent dissemination of information through social media. Here we report on a citizen-science initiative to monitor small-scale disasters (landslides and floods) occurring in the Rwenzori Mountains. A network of citizen (geo-)observers was established in February 2017 to collect temporally explicit geo-referenced information on eight different hazards and their impact using smartphone technology. Since then, over 500 hazard occurrences have been reported. However, such dataset needs to be assessed for its accuracy and potential biases before being used for scientific analysis. In this study, we evaluate the accuracy and completeness of the geo-observer-based disaster reports. First, systematic errors are reduced by peer reviewing the reports and implementing automatic tests to assess potential errors in detection and biases. Then, we compare the geo-observer-based records with two independent inventories collected through systematic field mapping and  satellite imagery mapping, focusing on landslide and flood events for the period between May 2019 and May 2020.  Results show over 95% of the geo-observer reports validated in the field were correctly identified and recorded less than 5 days after the occurrence (60% true positives, 1% false positives and 39% false negatives). For the satellite imagery mapping, 29% were true positives, 43% false positives and 28% false negatives. Geo-observers provide near real time disaster information on the location and level of impact, something difficult to achieve with systematic field and satellite imagery mapping. Depending on the topography of the area and the weather conditions, it can take several days to weeks before a cloud-free satellite image of a place can be obtained. The false negatives in the Geo-observer data are due to the tendency to report mainly occurrences along roads and rural foot paths since such occurrences are easily seen and accessed. Isolated small and inaccessible landslides are often not seen or reported to the Geo-observers. While satellite imagery mapping provides an opportunity to record disaster occurrences even in extremely inaccessible places, small landslides are often missed while shallow ones can easily be confused with freshly cleared vegetation for crop planting. Citizen science-based disaster reporting therefore not only provide the spatial occurrence of disasters but also the temporal and weather-related information, necessary for disaster risk analysis.</p>

Origin of Qinxi Silver Polymetallic Deposit in Southeast Coast, China: Evidences from H–O–S–Pb Isotopes and Mineral Rb–Sr Geochronology

The Qinxi silver deposit is located in eastern Fujian Province, South China. It is hosted in the late Jurassic Nanyuan volcanic unit and controlled spatially by structural alteration zone. The origins of the deposit are understood poorly. In this study, systematic field geology, precise sulfide geochronology, and H–O–S–Pb isotope analyses were carried out. The symbiotic minerals and ore assemblages are interpreted as evidence that Qinxi ore is a typical middle to low temperature hydrothermal deposit. Galena and sphalerite from the ore yield a Rb–Sr isochronal age of 130 ± 2.0 Ma (MSWD = 1.7), and single galena samples yield a Rb–Sr isochronal age of 130 ± 7.1 Ma (MSWD = 2) and are evidence that the ore was formed in the early Cretaceous period. The silver-bearing quartz vein has O:H and 18O:16O ratios intermediately between magmatic and meteoric water (δ18 Owater-smow from −2.50‰ to −0.1‰ and δDv-smow from −73.6‰ to −60.7‰). The δ34 S values of metal sulfide are close to the primitive mantle sulfur values (δ34S = −1.7 to 7.1‰, avg. = 0.92‰). The Pb isotopic compositions from the ore are similar to those of the hosted volcanic unit, with a value between the upper crust and mantle isotope composition (206Pb/204Pb = 18.421~18.605, 207Pb/204Pb = 15.580~15.772, 208Pb/204Pb = 38.591~39.183). Lead–zinc sulfides have mature crustal-derived Sr isotopic features ((87Sr/86Sr)i = 0.7103). Thus, the metallogenic source materials mainly came from the crust. Moreover, regional geological studies suggest that the Qinxi ore deposit was likely formed in an extensional terrane.

A distance sampling survey of the Critically Endangered Straw-headed Bulbul Pycnonotus zeylanicus in Singapore

Summary The Straw-headed Bulbul Pycnonotus zeylanicus is one of South-East Asia’s most threatened songbirds due to relentless demand for the regional cage-bird trade. The species was recently uplisted from ‘Endangered’ to ‘Critically Endangered’ only two years after its previous uplisting. Intriguingly, populations in highly urbanised Singapore appear relatively secure. However, the last Singaporean density estimates, derived from traditional census methods, were obtained nearly two decades ago in 2001. A recent population estimate in 2016 was derived from the census work in 2001 coupled with relative abundance indices from population trends. We thus performed systematic field surveys using the distance sampling method, estimating 573 ± 185 individuals nation-wide, with a break-down of 217 ± 81 on the main island of Singapore and 356 ± 104 birds on the satellite of Pulau Ubin. Taken together, the total population estimate reported here comprises 22.9–57.3% of the global wild population, underscoring the importance of Singapore as a stronghold for the species. In spite of its apparently secure status in Singapore, the species remains susceptible to local and foreign trapping pressures. Based on our assessment, we propose a number of local and regional conservation measures to ensure the continued survival of populations in Singapore.

Ancient Artifacts of Mariinsk Forest-Steppe: First Evidence and Early Studies

Mariinsk forest-steppe boasts the biggest concentration of archaeological artifacts in Kuzbass. It is in this region that the first systematic field works were organized by Kemerovo archaeologists in 1950s. Previously, the ancient past of Mariinsk forest-steppe had remained a total mystery, unlike the well-explored border territories of High Ob area and Minusinsk hollow. The present article sums up all official and unpublished data on the archaeological artifacts found in North-Eastern Kuzbass in XIX century. The author links the works by I. P. Aspelin, D. A. Klements, I. P. Kuznetsov (Krasnoyarskiy), and F. R. Martin to the history of archaeological research of Mariinsk forest-steppe. The paper introduces some previously unknown archive materials that prove the interest of the local population to the ancient sites. It also describes the first ideas about the local archeology that shaped in the late XIX century. The study focuses on G. O. Ossovski who was the first to conduct an archaeological exploration and excavation in Mariinsk forest-steppe in 1895–1896, while the mining engineer P. K. Yavorovsky was the first to put value on the historical and geographical role that the region had in ancient times.

Gagasan Madrasah al-Zahra’: Pemikiran Said Nursi dalam Pendidikan

Islamic education has been strongly emphasized in Muslim communities. The quality of education and adherence to the Islamic worldview will shape Muslim personalities towards the true meaning of excellence in this world and the hereafter. In the broader context of the establishment of the university as a more systematic field of knowledge has long been practiced in Muslim countries, in particular with the existence of Al-Azhar University, which is the oldest university in the world. However, whether the establishment of a university in a Muslim country now fulfill the needs of the Muslims themselves, while still meeting the characteristics of Islamic civilization. This paper aims to analyze the idea of education of an Islamic thinker at the end of the Ottoman Turkish government, namely Sheikh Badiuzzaman Said Nursi who is considered a figure who tried to integrate the religious and scientific knowledge in a single framework based on Madrasah al Zahra's model. This study is adopted a library research and its analysis is based on a content analysis framework. The study found that the idea of establishing Madrasah al Zahra Islamic University by Sheikh Badiuzzaman Said Nursi was in line with religious demands, to cater the needs of Muslims and restoring the strength of Muslims in leading the occupation of Western powers at that time.