bluuebunny/crossref_metadata_2025 huggingface dataset:
Petrography of the quartz sand deposits of the Lower Cretaceous of Bornholm, Denmark
Authors: Gravesen Peter
Published: June 2021

The quartz sand of the Lower Cretaceous Robbedale Formation and lowermost part of the Jydegard Formation in the Arnager-Sose fault block of Bornholm has been investigated with respect to mineralogy, grain-size, grain rounding and grain shape. Analyses of both light and heavy minerals have been carried out for 18 samples from different localities and facies. The purpose of the investigation was to try to recognize the possible types of source rocks and provenance areas. The Precambrian basement rocks of Bornholm are not the main sources of the sand, especially not the heavy minerals, but parts of the sand may have originated from the basement. The Palaeozoic sandstones and siltstones have delivered only a small amount of material. Parts of the older Mesozoic sediments of the Bornholm Group and Homandshald Member may have been redeposited in the Lower Cretaceous as they contain the same kinds of heavy minerals as the Robbedale and Jydegard Formations, although in differing amounts. It seems very possible, however, that most of the Mesozoic sediments of Bornholm have had a source area outside Bornholm, and this source area has been nearly the same during the whole span of time. The Fenno-Scandian Shield seems to be the most obvious provenance area, but eastern and southern areas are possibilities too. It is concluded that most of the Lower Cretaceous sands are first deposition cycle sediments of both local and distant origin combined with minor amounts of polycyclic sediments of mainly local origin.
Den geologiske kortlægning af Danmark. Den hidtigige kortlægning - og den fremtidige
Authors: Sørensen Henning , Nielsen Arne Vagn
Published: June 2021

Den geologiske kortlægning af Danmark er endnu ikke afsluttet, idet ca. en trediedel af landet mangler at blive geologisk kortlagt. Tilsvarende forhold gør sig gældende i de fleste af vore nabolande. Den geologiske kortlægning var en hovedopgave for Danmarks Geologiske Undersøgelse da instituttet blev oprettet i 1888. Men her som i de fleste andre lande blev de geologiske undersøgelser pålagt stadig nye opgaver uden at geologstaben øgedes tilsvarende. Samtidig skærpedes kravene til kvaliteten af den geologiske kortlægning på grund af den geologiske videnskabs udvikling og nye anvendelser af de geologiske kort. Det er således let at forklare, at den geologiske kortlægning af de fleste lande endnu er uafsluttet. I de seneste år har Danmarks Geologiske Undersøgelse (DGU) praktisk taget måttet indstille det geologiske kortlægningsarbejde, idet hele geologstaben har været bundet af andre samfundspålagte opgaver. Samtidig har der vist sig et øget behov for geologiske kort i en række samfundssektorer, idet et detaljeret kendskab til de geologiske forhold er en forudsætning for planlægning og administration af arealudnyttelsen. DGU har derfor i foråret 1976 bedt en arbejdsgruppe med deltagelse af geologer fra de højere læreanstalter, amtskommunerne og DGU om at rådgive DGU med, hvorledes den geologiske kortlægning af Danmark kan videreføres og afsluttes. Arbejdsgruppen er blevet specielt bedt om at vurdere de geologiske korts indhold og udformning i lys af den udvikling, der er sket inden for de geologiske fagområder, og i lys af kortenes fremtidige anvendelse i bl.a. planlægningsøjemed. Arbejdsgruppen skulle endvidere vurdere mulighederne for at publicere de foreliggende upublicerede kort, tidsrammen og tidsplanen for kortlægningen og lagringen af kortlægningens resultater. Arbejdsgruppen afsluttede arbejdet i april 1977 med udarbejdelsen af denne rapport. DGU overvejer nu, hvorledes arbejdsgruppens forslag kan blive realiseret og har allerede besluttet at følge forslaget om udarbejdelse af en serie foreløbige geologiske kort i 1:25.000 over de dele af landet, hvor der overhovedet er foretaget geologisk kortlægning. Finansudvalget har bevilget de nødvendige midler til at disse kort kan udarbejdes i finansåret 1977/78. DGU håber at kunne igangsætte en ny fase af den geologiske kortlægning i 1978.
Geology of the Søby-Fasterholt area. Atlas
Authors: Koch Eske , Christensen E. Fjeldsø , Thomsen Erik
Published: June 2021

This atlas contains 121 photographic pictures, illustrating the text-volume with field information.
Upper Triassic-Lower Jurassic tidal deposits of the Gassum Formation on Sjælland, Denmark
Authors: Nielsen Lars Henrik , Larsen Flemming , Frandsen Nils
Published: June 2021

Three deep wells on the Danish island of Sjælland penetrate the Upper Triassic - Lower Jurassic Gassum Formation. The formation has been the subject of a facies analysis of cored sediments and interpretation of petrophysical logs. The principal part of the work presented is based on data from the Stenlille-1 well. The sediments were deposited in a NW-SE trending, microto mesotidal, prograding coastal zone and the adjacent fluvial hinterland. In the Stenlille-1 well, the coastal progradation is recorded as a thick, coarse-grained sandstone unit deposited within a barrier island complex. This basal part of the formation is overlain by four stacked regressive sequences consisting of finegrained sandstones and mudstones deposited on tidal flats. A thin transgressive sandstone sheet terminates the formation and marks the boundary to marine claystones of the Fjerritslev Formation.
Well records on the Phanerozoic stratigraphy in the Fennoscandian Border Zone, Denmark. Hans-1, Sæby-1, and Terne 1 wells
Authors: Michelsen Olaf , Nielsen Lars Henrik
Published: June 2021

The Hans-1, Sæby-1, and Terne-1 wells are located within the Danish part of the Fennoscandian Border Zone and provide significant new data pertaining to the evolution of this important tectonic belt. All three wells encountered Palaeozoic rocks; the Terne-1 well extended into the lower Palaeozoic. Two of the wells are located in the Danish waters of the Kattegat, and thus yield the first deep well data from this part of the border zone. The wells encountered Cambrian to Silurian, Carboniferous to Zechstein and Triassic to Upper Cretaceous successions. The Cambrian to Lower Silurian section is interpreted to represent shelf and shallow marine deposits comparable to those known from Scania and Bornholm. The inferred Upper Silurian section is calculated to be up to 2600 m thick and may represent the fill of a foreland basin in front of the Caledonian 4 deformation front. A hiatus comprising the Devonian to Lower Carboniferous is inferred. A 550 m thick Rotliegende sequence was drilled in the eastern part of the Sorgenfrei-Tornquist Zone; changes in structural dip indicate a syn-depositional faulting. Palaeozoic tectonism is also indicated by Late Carboniferous intrusive and extrusive volcanic rocks. Reworked volcanic rocks characterize the Rotliegende elastic sequence. A thin siliciclastic Zechstein sequence is recognized. The lithology and stratigraphy of the Mesozoic sections are in accordance with well data from the Danish Subbasin. The presence of a Middle Jurassic depocenter within the Sorgenfrei-Tornquist Zone may indicate a tectonically controlled subsidence of the zone. The occurrence of a Late Cretaceous to Early Tertiary inversion tectonism is supported by these new data.
Palynological zonation and palynofacies investigation of the Fjerritslev Formation (Lower Jurassic - basal Middle Jurassic) in the Danish Subbasin
Authors: Dybkjær Karen
Published: June 2021

A detailed study of the palynology and palynofacies of the Fjerritslev Formation (Lower Jurassic - basal Middle Jurassic) has resulted in the definition of four spore/pollen zones and four dinoflagellate cyst zones. The spore/pollen zones are the Corollina - Ricciisporites Zone (Late Rhaetian), the Cerebropollenites macroverrucosus Zone (Sinemurian - Pliensbachian), the Spheripollenites - Leptolepidites Zone (Toarcian), and the Perinopollenites elatoides Zone (Middle Jurassic). The dinoflagellate cyst zones are the Rhaetogonyaulax rhaetica Zone (Rhaetian), the Dapcodinium priscum Zone (latest Rhaetian - earliest Sinemurian), the Liasidium variabile Zone (Sinemurian), and the Nannoceratopsis gracilis Zone (Late Pliensbachian - ?Bajocian/Bathonian). These zones, and the Pinuspollenites - Trachysporites Zone Lund 1977 (Hettangian), are proposed for use in the Danish Subbasin. The combined spore/pollen and dinoflagellate cyst zonation has resulted in a detailed biostratigraphical subdivision of the sequences studied. A new combination, Manumia delcourtii (Pocock 1970) nov. comb. et emend., is proposed here, and the species description emended. New photographs of the holotypes of some of the species erected by Nilsson (1958) are included in the plates. The kerogen assemblages recorded from the Fjerritslev Formation, indicate a marine depositional environment, with a high but variable influence of terrestrially-derived organic particles. Stratigraphic variation in the kerogen assemblages generally correlate with the lithostratigraphical subdivision, and support previous environmental interpretations of the Fjerritslev Formation. Indications of strongly reducing conditions in the bottom waters were found in the Stenlille-2 borehole, in samples here referred to the Early Toarcian. The variations in the kerogen assemblages in the sequence investigated from the Gassum-1 borehole are not correlatable with the other boreholes, but seem primarily to reflect a distinct decrease in bioturbation in the Late Sinemurian. The Fjerritslev Formation does not generally represent a potential source rock for oil. Some levels (parts of the F-111 member) show, however, the characteristics of a fair to good source rock. The organic matter is generally immature or only at the earliest stage of maturity.
Middle Jurassic deltaic and coastal deposits in the Lulu-1 well of the Danish Central Trough
Authors: Frandsen Nils
Published: June 2021

Four cores from the Middle Jurassic Bryne Formation of the Lulu-I well in the northernmost part of the Danish Central Trough have been investigated. The cores were slabbed and a detailed description and facies analysis carried out. The cored sequence is very heterogeneous and includes beds of sand-, silt-, claystone, and coal. Seven facies are defined and the sequence is interpreted as sediments of a deltaic interdistributary bay and associated environments overlain by sediments of a coastal environment.
Discussion of Jurassic lithestratigraphy in the Danish, Dutsch, and Norwegian Central Graben Areas
Authors: Michelsen O , Wong Th.E
Published: June 2021

Based on recently published data dealing with the Jurassic lithostratigraphy from the Danish, Dutch, and Norwegian sectors of the Central Graben areas, it seems possible to establish a more consistent and dynamic stratigraphic scheme for these regions. A preliminary proposal of a south-north lithostratigraphic section, from the Dutch to the southern Norwegian sector is discussed. It is suggested to initiate an international cooperation in order to study the common geological features in detail.
Lithostratigraphy and depositional history of the Danish Triassic
Authors: Bertelsen Finn
Published: June 2021

The Triassic deposits of the Danish territory are mapped, described and characterized by means of wire line log motifs. Three facies provinces are recognized: A southern and central Germano-type Facies Province, a Northern Marginal Facies Province fringing the basin center, and a Central Graben Facies Province with affinities to the Southern North Sea Basin. The traditional German lithostratigraphic nomenclature previously used in the Germano-type Facies Province is proposed replaced by a system composed of four groups each of two formations corresponding to four Triassic megaphases of sedimentation: Bacton Group including Bunter Shale Formation and Bunter Sandstone Formation, Lolland Group (new) including Ørslev Formation (new) and Falster Formation (new), Jylland Group (new) including Tønder Formation (new) and Oddesund Formation (new), and Mars Group (new) including Vinding Formation and Gassum Formation. In the other facies provinces the nomenclature previously proposed for the Central and Southern North Sea is adopted. A summary of the basin evolution is given for each formation description.
Dinocyst stratigraphy of the latest Jurassic to Early Cretaceous of the Haldager No. 1 borehole, Denmark
Authors: Davey Roger J.
Published: June 2021

The dinocyst assemblages were obtained from selected core samples, between the depths 2505' and 3190', from the Haldager No. 1 borehole, onshore Denmark. It has been possible to apply the dinocyst zonation of Davey (1979) to these assemblages and they have been dated as Hauterivian (Early Cretaceous) to early Portlandian (Late Jurassic). The placing of the Cretaceous-Jurassic boundary between 2945' and 2989' differs significantly from its initial position in Sorgenfrei and Buch (1964) at 2706'. The present revised dating has subsequently been used by Michelsen (1978, p. 23) in his study of the Norwegian-Danish Basin. The study has necessitated the examination of many accurately dated samples of Early Cretaceous and Late Jurassic age from onshore eastern England and the results are incorporated in this paper. Detailed systematics, the key to a detailed stratigraphic breakdown, has necessitated the erection of 2 new genera ( Cymososphaeridium and Stiphrosphaeridium ), 12 new species and 2 new subspecies. In addition minor amendments are also made to the dinocyst zonation of Davey (op. cit.).
Lithostratigraphy and sedimentary evolution of the Triassic, Jurassic and Lower Cretaceous of Bornholm, Denmark
Authors: Gravesen Peter , Rolle Flemming , Surlyk Finn
Published: June 2021

A new lithostratigraphic subdivision of the Triassic to Lower Cretaceous sequence of Bornholm is presented including 2 new groups, 3 new formations and 10 new members. The Late Ladinian-Carnian variegated clay, sand and conglomerates of arid flood-plain origin with thin marine intercalations are tentatively referred to the Kagerod Formation. The Jurassic sediments are placed in the Bornholm Group (new) comprising a lower Hettangian-Sinemurian Rønne Formation (new) which contains a succession of lacustrine clay, fluviatile sand and coal, and tidal flat and marsh heteroliths and sand. The overlying Lower Pliensbachian Hasle Formation (new) includes shallow marine fossiliferous sandstone, while the Bajocian-Bathonian Baga Formation (new) is characterized by fluviatile fining-upwards sand-clay-coal sequences and resedimented conglomerates. This is followed by the Lower Cretaceous Nyker Group (new), comprising a basal Rabekke Formation (Lower Berriasian, possibly extending down into the Tithonian and up into the Upper Berriasian) which contains fluviatile coarse, sometimes ferruginous sand and sandy clay, and swamp and lagoonal dark grey clay. This is overlain by the Robbedale Formation (Upper? Berriasian) which comprises tidal flat, beach and lagoonal fine-grained sand and clay and rather coarse-grained barrier beach and shelf sand. Then follows the Jydegard Formation (uppermost Berriasian - Valanginian) comprising back-barrier and washover fan sand, and lagoonal clay, clay-ironstone and silt with thin sands. The Triassic-Lower Cretaceous sequence thus reflects deposition in a variety of coastal environments, and while eustatic sea-level changes seem to have controlled the main facies evolution, the local depositional environments and breaks in sedimentation seem to reflect the interplay between eustacy and synsedimentary tectonic phases.
Permian
Authors: Jacobsen Fritz Lyngsie , Larsen Jørgen Gutzon
Published: June 2021

In North-West Europe two mega-basins began their development during Late Carboniferous to Early Permian: The South Permian Basin stretching from eastern England into Poland , and the North Permian Basin reaching from Scotland into Denmark. These two basins were separated by the Mid North Sea High and the Ringkøbing-Fyn High which came into existence early in Permian. The initial phase of subsidence was accompanied by extensive subaerial volcanism. This was followed by a period of oxidation and erosion under desert conditions and deposition of red beds and sabkha sediments in the two Permian basins (fig. 19). These rocks are included in the Rotliegendes Group as originally established by Werner (1786). Continuous subsidence and transgression of the sea, but with a restricted connection to the ocean, lead to the formation of the evaporites of the Zechstein Group.
EXPERIENCE IN EMPLOYMENT RESETTLEMENT FOR ETHNIC MINORITIES DUE TO HYDROPOWER CONSTRUCTION IN SOME SOUTHEAST ASIAN COUNTRIES
Authors: Quân Nguyễn Phùng
Published: June 2021

Việc xây dựng, phát triển thủy điện luôn có tầm quan trọng và ý nghĩa đặc biệt về kinh tế - xã hội, quốc phòng, an ninh của mỗi quốc gia. Từ khi bắt đầu triển khai lập kế hoạch tới khi nhà máy được đưa vào vận hành, vấn đề tái định cư cho người dân bị ảnh hưởng do xây dựng thủy điện còn nhiều bất cập. Một trong những thiếu sót dẫn tới bất cập đó là chính sách giải quyết việc làm đối với đồng bào dân tộc thiểu số trong bối cảnh tái định cư do xây dựng thủy điệnchưa được nghiên cứu sâu cả trong nước cũng như nước ngoài. Hầu hết các khu vực xây dựng thủy điện trọng điểm là nơi cư trú chủ yếu của đồng bào dân tộc thiểu số, đó là nhóm người dễ bị tổn thương nhất nhưng lại là những người chịu ảnh hưởng trực tiếp của quá trình tái định cư. Giải quyết việc làm chính là bình ổn cuộc sống của đồng bào dân tộc thiểu số sau tái định cư nhằm bình thường và phát triển cuộc sống cũng như an ninh, xã hội, kinh tế vùng đồng bào cư trú. Bằng phương pháp nghiên cứu thực tiễn, phân tích tổng kết kinh nghiệm của Lào, Myanmar, Thái Lan và Campuchia, các quốc gia thuộc nhóm Đông Nam Á lục địa có cùng tiềm năng phát triển thủy điện giống Việt Nam, nghiên cứu đưa ra bài học để xây dựng, hoàn chỉnh chính sách giải quyết việc làm đối với đồng bào dân tộc thiểu số tái định cư do xây dựng thủy điện ở Việt Nam.
DOES THE METHOD OF ENTRUSTED LENDING VIA FARMER-BASED UNIONS FACILITATE LOW-INCOME HOUSEHOLDS’ ACCESS TO BANK CREDIT? EVIDENCE FROM NORTHWESTERN VIETNAM
Authors: Luận Đỗ Xuân
Published: June 2021

Mục đích của bài viết này nhằm kiểm định giả thuyết cho rằng phương thức cho vay ủy thác thông qua các tổ chức của nông dân có ý nghĩa trong khắc phục bất cân xứng thông tin và thúc đẩy tiếp cận tín dụng ngân hàng của các hộ gia đình. Bài viết sử dụng mô hình hồi quy logistic, với dữ liệu được thu thập từ khảo sát 548 hộ trồng quế ở Tây Bắc, Việt Nam. Kết quả cho thấy thành viên trong các tổ chức nông dân tạo điều kiện cho các hộ gia đình tiếp cận với tín dụng ngân hàng không cần tài sản thế chấp. Các tổ chức hội giúp ngân hàng lựa chọn tốt hơn các hộ gia đình có nhu cầu vay vốn, tổ chức cho vay theo nhóm, qua đó giảm rủi ro và chi phí giao dịch. Thành công của các tổ chức hội có thể do họ đã khai thác kiến thức địa phương để tiến hành cho vay theo nhóm, qua đó giúp khắc phục bất cân xứng thông tin trong thị trường tín dụng nông nghiệp. Cần tổ chức các khóa đào tạo thường xuyên cho cán bộ của các hội và các tổ tiết kiệm, vay vốn để thu hẹp khoảng cách tín dụng; xây dựng sở dữ liệu số để chia sẻ thông tin giữa các ngân hàng và các hội liên quan đến các vấn đề ủy thác cho vay. Kết quả nghiên cứu cũng đề xuất các can thiệp chính sách khả thi để giải quyết vấn đề bất cân xứng thông tin trong thị trường tín dụng nông nghiệp.
ALLOMETRY VARIATION IN MORPHOMETRICS OF GLOSSOGOBIUS SPARSIPAPILLUS CAUGHT ALONG HAU RIVER, FROM CAN THO TO SOC TRANG PROVINCES
Authors: Quang Đinh Minh , Tôn Nguyễn Hữu Đức , Tiên Nguyễn Thị Kiều
Published: June 2021

Nghiên cứu này cung cấp dữ liệu về biến đổi đặc điểm hình thái của loài Glossogobius sparsipapillus ở Đồng bằng sông Cửu Long. Một tập hợp 355 cá thể, gồm 155 cá cái và 200 cá đực, được thu thập từ Cái Răng, tỉnh Cần Thơ và Long Phú, tỉnh Sóc Trăng từ tháng 1 đến tháng 12 năm 2020 để phân tích hình thái. Các phân tích thống kê cho thấy chiều dài tổng (TL) của cá có mối quan hệ chặt chẽ với chiều dài chuẩn (SL), chiều cao cơ thể (BH) và chiều dài đầu (HL) do các giá trị r2 cao của các phép hồi quy, ví dụ SL = aTLb, HL = aTLb và BD = aTLb (r2 > 0,666 cho mọi trường hợp). Các giá trị độ dốc (b) hồi quy TL-SL và TL-HL cho thấy A- và I ở đực nhưng I và A+ ở cái tương ứng; trong khi đó b của hồi quy TL-HL cho cùng kết quả ở hai giới tính (A-). Nó chỉ ra rằng giới tính cá có thể được xác định từ các hồi quy TL-SL và TL-BH. Sự thành thục của cá có thể được ước tính từ ba hồi quy khi giá trị b hiển thị I ở cá trưởng thành nhưng A ở cá chưa trưởng thành. Các hồi quy TL-HL và TL-BH có thể được sử dụng để đánh giá thời gian và địa điểm đánh bắt cá vì các giá trị b thay đổi theo các mùa và địa điểm khác nhau. Kết quả cho thấy chúng ta có thể sử dụng SL và BL để xác định giới tính cá; SL, BL và HL để xác nhận thời điểm, địa điểm đánh bắt cá và thời điểm cá trưởng thành.
AIR STRIPPING FOR AMMONIA REMOVAL FROM LANDFILL LEACHATE IN VIETNAM: EFFECT OF OPERATION PARAMETERS
Authors: Khôi Trần Tiến , Thủy Trần Thị Thanh , Nga Nguyễn Thị , Huy Nguyễn Nhật , Thủy Nguyễn Thị
Published: June 2021

Nước rỉ rác là nước thải từ bãi chôn lấp chứa các thành phần ô nhiễm ở nồng độ cao. Do đó, việc xử lý nước rỉ rác cần một hệ thống phức tạp bao gồm các quá trình hóa học, hóa lý, sinh học và xử lý nâng cao. Nồng độ cao của amoniac trong nước rỉ rác ngăn cản sự phát triển của các vi sinh vật trong xử lý sinh học nên cần loại bỏ amoni xuống nồng độ thấp hơn, tạo điều kiện thuận lợi cho các quá trình xử lý tiếp theo. Trong nghiên cứu này, tháp tách khí để loại bỏ amoni từ nước thải tổng hợp và nước rỉ rác đã được thiết kế và thử nghiệm. Ảnh hưởng của pH, tải trọng thủy lực (HLR), tỷ lệ khí/lỏng (G/L), và thời gian tuần hoàn lên hiệu quả tách amoni đã được nghiên cứu. Kết quả cho thấy việc tăng pH từ 9 tới 12 đã tăng hiệu quả xử lý amoni dù hệ thống vận hành ở những tỷ lệ G/L hay HLR khác nhau. Tại HLR bằng 57.6 và 172.8 m3/m2.ngày, tăng tỷ lệ G/L nâng cao được hiệu quả xử lý, đạt 56% với HLR ở 172.8 m3/m2.ngày, pH 12, và G/L 728. Việc tuần hoàn nước rỉ rác đã cải thiện đáng kể hiệu quả tách amonia, lên tới 99.0% sau ba giờ, đạt nồng độ amoni đầu ra là 25.2 mg/L. Như vậy, kết quả từ nghiên cứu này đã chứng minh hiệu quả của phương pháp tách khí trong tiền xử lý amoni từ nước rỉ rác và đề xuất được các điều kiện vận hành phù hợp.
AN ITERATIVE ALGORITHM FOR FINDING THE MINIMUM NORM POINT IN THE SOLUTION SET OF SPLIT FIXED POINT PROBLEM
Authors: Nghĩa Nguyễn Trung , Thắng Nguyễn Tất
Published: June 2021

Bài toán chấp nhận tách và bài toán bất đẳng thức biến phân có nhiều ứng dụng quan trọng trong các lĩnh vực như xử lý tín hiệu, xử lý ảnh, điều khiển tối ưu và nhiều lĩnh vực khác. Ở đây, chúng tôi quan tâm tới một bài toán hai cấp, đó là bài toán tìm điểm có chuẩn nhỏ nhất trên tập nghiệm của bài toán điểm bất động tách. Bài toán tìm điểm có chuẩn nhỏ nhất là trường hợp riêng của bài toán bất đẳng thức biến phân, trong đó ánh xạ giá F là ánh xạ đồng nhất của không gian Hilbert. Trong bài báo này, chúng tôi trình bày một phương pháp lặp hiện để xấp xỉ nghiệm của bài toán trên. Phương pháp được xây dựng dựa trên kết quả đã được trình bày bởi các tác giả Trần Việt Anh và Lê Dũng Mưu năm 2016, đó là sự kết hợp giữa phương pháp chiếu giải bất đẳng thức biến phân và phương pháp Krasnoselskii–Mann giải bài toán điểm bất động của các ánh xạ không giãn. Định lý về sự hội tụ mạnh của thuật toán được chứng minh. Ở cuối bài báo, chúng tôi trình bày một ví dụ số để minh họa cho sự hội tụ của phương pháp.
IELTS READING TEST-TAKING STRATEGIES EMPLOYED BY HIGH SCORE CANDIDATES IN ACADEMIC TRAINING MODULE
Authors: Mùi Phí Thị , Quyên Vũ Thị
Published: June 2021

Nghiên cứu này nhằm mục đích làm sáng tỏ những chiến thuật đọc thường được áp dụng bởi những thí sinh đạt điểm cao kỹ năng đọc trong bài thi IELTS học thuật. Hai câu hỏi nghiên cứu gồm: (1) Các thí sinh Việt Nam thường sử dụng chiến lược làm bài nào trong các bài thi đọc IELTS? (2) Các chiến lược làm bài thi đó có liên quan như thế nào đến thành tích của thí sinh? Nghiên cứu sử dụng phương pháp khảo sát đối với 100 người tham gia và phỏng vấn 06 người học tiếng Anh đã tham gia kỳ thi IELTS và đạt ít nhất 7.0 cho kỹ năng đọc; từ đó, chỉ ra các chiến lược đọc phổ biến được sử dụng bởi những thí sinh đạt điểm cao và ảnh hưởng của những chiến lược này tới kết quả của thí sinh. Các phát hiện từ nghiên cứu minh họa sự đa dạng trong việc áp dụng các chiến lược làm bài thi đọc IELTS và tác động của các chiến lược đến kết quả bài thi. Các phát hiện cũng khuyến khích người học tìm hiểu và trau dồi phương pháp tiếp cận cơ bản khi làm bài thi đọc, đặc biệt là trong bài thi đọc IELTS, nhằm nâng cao mức độ thành thạo đối với kỹ năng đọc hiểu của bản thân.
THE EXPLICIT INSTRUCTIONS ON CONNECTED SPEECH TO THE FIRST YEAR ENGLISH MAJOR STUDENT’S PERCEPTION AND PRODUCTION AT SCHOOL OF FOREIGN LANGUAGES – THAI NGUYEN UNIVERSITY
Authors: Ngoan Bùi Thị , Giang Bùi Hương
Published: June 2021

Liên ngữ là một khía cạnh quan trọng của âm vị học có ảnh hưởng lớn đến sự thành công của quá trình giao tiếp tiếng Anh. Do đó, nghiên cứu này được thực hiện nhằm điều tra tính hiệu quả của việc hướng dẫn tường minh các khía cạnh liên ngữ đối với khả năng nhận diện và sử dụng liên ngữ của sinh viên. Đối tượng nghiên cứu là 40 sinh viên năm thứ nhất, ngành ngôn ngữ Anh tại trường Ngoại ngữ - Đại học Thái Nguyên. Trước khi nghiên cứu, sinh viên của nhóm thực nghiệm và đối chứng được làm bài kiểm tra để đảm bảo năng lực đầu vào của các sinh viên là không có sự chênh lệch. Sau đó, sinh viên của nhóm thực nghiệm sẽ được hướng dẫn chi tiết về các khía cạnh của liên ngữ trong vòng 7 tuần. Ngược lại, sinh viên ở nhóm đối chứng tham gia các tiết học trên lớp. Kết thúc 7 tuần, sinh viên ở cả hai nhóm làm bài kiểm tra đầu ra. Kết quả của các bài kiểm tra sẽ được so sánh để trả lời các câu hỏi nghiên cứu. Kết quả cho thấy cả hai nhóm đều có sự tiến bộ, tuy nhiên kết quả của nhóm thực nghiệm cao hơn so với nhóm đối chứng.
THE MALLIAVIN DERIVATIVE FOR G ENERALIZATION OF FRACTIONAL BESSEL TYPE PROCESS
Authors: Hương Vũ Thị
Published: June 2021

Bài báo này xem xét một dạng tổng quát của quá trình Bessel phân thứ. Đây cũng là một dạng thuộc lớp các phương trình vi phân ngẫu nhiên kỳ dị xác định bởi chuyển động Brown phân thứ đã được nghiên cứu bởi một số tác giả. Với một số giả thiết của các hệ số, phương trình này có nghiệm duy nhất dương. Mục đích chính của bài báo là đưa ra công thức của đạo hàm Malliavin cho quá trìnhnày. Tính toán Malliavin được sử dụng cho phương trình vi phân ngẫu nhiên xác định bởi chuyển động Brown phân thứ. Chúng ta nhận được đạo hàm Malliavin cho quá trình này là một hàm mũ của đạo hàm của hệ số dịch chuyển. Kết quả này rất hữu ích khi đánh giá moment ngược của nghiệm. Từ đó chúng ta có thể đánh giá tốc độ hội tụ của nghiệm xấp xỉ trong Lp.
Perceptions and practices of mothers and caregivers on common diseases in children under five years of age in a Mayan community in Yucatán, México
Authors: Rodríguez-Angulo Elsa , Aguilar-Franco Laura , Ojeda-Rodríguez Ricardo , Andueza-Pech Guadalupe
Published: June 2021

Community perceptions and practices towards the disease are mainly influenced by traditional medicine. The intercultural perspective in health allows building symmetrical relationships between medical and traditional knowledge. One of the most vulnerable group is under five years age. Exploring the perceptions and practices of mothers and caregivers on the disease and care of children can guide towards better health practices. Objective. Describe the perceptions and practices of mothers about the main health problems of their children during an emergency. Methodology. Quantitative-qualitative study, participatory action-research type with an intercultural perspective. Question guide was prepared for the exchange of knowledge with the focus group technique. Through inductive analysis of the transcripts, themes emerged. Results. Thirty-one mothers and caregivers attended the workshops. There were 48.6% emergencies due to diarrhea, fever and accidents. Home remedies, lack of hygiene in homes and lack of doctors on weekends were noted. Conclusions. Emergencies in children occured in almost half of the morbidity cases in the community studied. A new regionalization is necessary to reduce health gaps for children under five years of age.
Conceptual development for the design proposal of the botanical garden of the academic unit of agrohydraulic in San Juan Acateno, municipality of Teziutlán, Puebla
Authors: Navarrete-García Mónica , Vázquez Torres María del Rayo , Castillo Reyes Alberto Rosendo , Navarrete-García Martín
Published: June 2021

The project and construction of the Agrohydraulic Botanical Garden, the Benemérita Universidad Autónoma de Puebla (BUAP) in San Juan Acateno, in the municipality of Teziutlán, was developed in collaboration with teachers from the Faculty of Agrohydraulic and the Faculty of Architecture of BUAP, as well as undergraduate students, social service and professional practice of architecture schools, graphic design Urbanism. The botanical garden project is located in the reserve category, to protect species of medicinal, ornamental, tingling and regional interest and thematic level of species of interest, to disseminate botanical knowledge of the region. The development of the project was based on qualitative research, interested in capturing the reality of users to determine the needs to be solved; in this process the designer applies the knowledge he develops in vocational training and induces the characteristics and conditions of the study problem. All this is done through different techniques and research tools such as interview, systematic observation, topographic survey, as well as the climatic conditions of the place, topography and conditions of existing buildings contrasting with documentary research.
Poisson para tasa de defectos en construcción de software
Authors: López-Padilla Gilberto , Soria-García Myriam , Santos-Pompa Diego Marcelo
Published: June 2021

This paper documents the process of statistical modeling of a probable defect rate, using the Poisson distribution, in software construction. This rate is very important since it is used to estimate defects in products of the Technological University of León´s, UTL, software factory. The UTL’s software factory has implemented the CMMI model for development at level 4 and the preliminary results obtained were part of the work reaching the level; and they can be of great help for organizations and companies interested in the implementation of this model.
Mother’s perspective of maintaining an active outdoor leisure time of a preschool child
Authors: Pišot Saša
Published: June 2021

In the contemporary life of a family, mothers are often faced with a conflict between work and family in order to assure a healthy childhood for their children. How to provide active leisure time for a child in accordance with healthy lifestyle guidelines, and what factors affecting the quantity and quality of a child’s physical activity, have been researched from the perspective of mothers. The qualitative and quantitative methods of questionnaires and semi-structured interviews (n=54) with mothers were executed with the aim to study important factors which distract mothers and their children from ensuring physically active leisure time. Additionally, the possible correlation of children’s motor efficiency and family characteristics were studied. From the mother’s perspective we found that “lack of time” along with “weather conditions” were two major obstacles. Mothers also indicated “the access to recreational facilities” and “health of a child” as common impetuses for active outdoor leisure time. Additionally, comparison of family characteristics showed that active family leisure behavior is influenced by i) demographic and personal factors of the family (family size, SES , sports history), ii) social factors (employment and schedule of employment, financial status of the family, social networks support), and iii) environmental factors (weather, accessibility, and safe conditions for physical activity, as well as living conditions). Because environmental factors are harder to change, we need to pay attention to demographic, personal, and social factors of mothers (families) with reduced possibilities and enable them to ensure conditions for healthy child development.
Does Voluntary Tax Compliance Increase After Granting Tax Amnesty?
Authors: Sudarma I Made , Darmayasa I Nyoman
Published: June 2021

Objective - The main objective of this study is to explore the meaning of voluntary tax compliance by a person after they are granted tax amnesty.

Methodology/Technique - This research is qualitative research and uses a transcendental phenomenology method.

Findings - The results show that tax compliance does not automatically increase after a grant of tax amnesty. The reason for this is the fact that taxpayers wish to avoid being tax audited. Tax amnesty is therefore not yet useful in build trust in the tax authority. Tax authorities need to convince the public that tax amnesty creates justice for all taxpayers. The power of the tax authority is useful to strengthen law enforcement measures. Furthermore, fundamental moral and ethical considerations based on internalization, spirituality and religion tend to improve taxpayers' honesty.

Novelty - The trust and power of a tax authority that is in line with taxpayers' honesty is fundamental voluntary to tax compliance. The results of this research demonstrate the need for new tax policies to increase voluntary tax compliance

Type of Paper: Empirical

Keywords: Moral Ethics; Tax Amnesty; Transcendental Phenomenology; Trust; Voluntary Tax Compliance.

JEL Classification: H20, H21, M41.
Transcendental and Social Accountability in Productive Waqf Assets
Authors: Tumirin Tumirin , Triyuwono Iwan , Mulawarman Aji Dedi , Prihatiningtias Yeney Widya
Published: June 2021

Objective - The objective of the study is to formulate a concept of transcendental and social accountability in the management of waqf assets as a trust worthiness from God (Triyuwono, 2004). The concept is expected to be an Islamic accountability which is religious and social in nature (Hameed, 2000) Methodology/Technique - The study uses tawhidic post-phenomenology, a modified post-phenomenology based on the basic tenet of Islam, as an instrument to analyze data. The method is actually the development and combination of philosophy of technology (Ihde, 1993) and Ibn Arabi's philosophy of being (Dobie, 2007). Financial statements of waqf institutions, in this study, are regarded as a technology and additional are collected by interviewing four informants in the Regional Board of Muhammadiyah in Gresik. Findings - The study finds a da'i (preacher) metaphor as a form of accountability. This metaphor indicates that waqf assets functioned, firstly, as an instrument for doing Islamic missionary efforts with good practices (dakwah bi al-hikmah) such as helping orphans, the poor and the needy, and overcoming natural disaster; secondly, as a spot for Islamic missionary efforts with good advices (dakwah bi al-mau'ihatul hasanah) for patients, employees, and people at large; and thirdly as an instrument for taking care of environmental health. Novelty - The study suggests transcendental and social accountability in the management of waqf assets as a trust worthiness from God. Type of Paper Empirical Keywords: Transcendental; Social; Accountability; Post-Phenomenology; Tawhid. JEL Classification: A13, M14, M41.
The Assessment of Client Creditworthiness Using Predictive Methods Based on Multivariate Discriminant Analysis
Authors: Siekelova Anna , Spuchlakova Erika
Published: June 2021

Objective - Trade credit is the most important source of external ﬁnance for many companies. It appears on every balance sheet and represents more than 50 percent of company's short-term liabilities and a third of all company's total liabilities in OECD countries. Late payment of invoices may suffer firm's solvency. The European economies are now putting the years of financial turmoil and debt crisis behind them and several macro-economic indicators are pointing towards a brighter future. The aim of this paper is to assess creditworthiness of companies.

Methodology/Technique - Assessment of client creditworthiness carried out using predictive methods based on multivariate discriminant analysis

Findings - The situation in the enterprise can be characterized as stable. An enterprise that chooses this client to provide it a trade credit should also consider supplementing the predictive models by complex financial and economic analysis and review of available. If the firm provides trade credit to more clients, it is necessary to consider that the terms of trade credits may not be the same for everyone but also it is not in the power of company to approach to each client individually.

Novelty - The study suggests that client groups can be created by using cluster analysis. Thus, the company may increase efficiency in the provision of trade credit.

Type of Paper Review

Keywords: Trade Credit; Trade Credit Receivables; Late Payment; Predictive Model; Z Score; IN 01; Taffler Model; G Index; SAF 2002.

JEL Classification: E51, G21, G33.
Business Model of Islamic Microfinance Institution: Indonesia Case
Authors: Mawardi Imron , Widiastuti Tika , Prasetyo Ari
Published: June 2021

Objective - Islamic Microfinance Institutions (IMFIs) grown very rapidly in the last 10 years in Indonesia. On 2015, the number of IMFIs' reached more than 5,000. As a business and social entity, IMFIs has various business models, the way in providing services and manages the business to achieve its goals. This study aims to determine the business models of IMFIs.

Methodology/Technique - This study uses qualitative approach by case study technique of Robert K. Yin. Subjects of this study are IMFIs in Indonesia that selected purposively with managers as a key informant.

Findings - The result is the business model of IMFI is determined by eight elements, namely: organizational orientation, business and social functions, the source of capital and allocation, investors and customers, financing usage, types of contract, allocation technique, and membership.

Novelty - The elements that determine IMFI, will form a business model of IMFI which determine how IMFI runs its business activities to achieve organization objective.

Type of Paper Review

Keywords: Islamic Microfinance Institution; Business Model; Social Function.

JEL Classification: G21, L22.
Overreaction Market Analysis, Dividend Policy, Firm Size, and Seasonality to Price Reversal Phenomena
Authors: Nidar Sulaeman Rahman , Ulfa Nurul
Published: June 2021

Objective - In an efficient capital market, the price of a stock reflects the outstanding and relevant information. However, some studies find that is the capital markets are not always efficient. Sometimes investors put too high a price, good news and vice versa. That's why there are variety of capital market anomalies such as the price reversal. This research, test share return following one day a big change of the share price in the Indonesia capital market.

Methodology/Technique - The unit of analysis in this study are the stocks that listed in the Jakarta Islamic Index. Then we used purposive sampling method for sampling and 21 samples obtained shares. These samples, then classified into 11 shares 10 shares winner and a loser. Analysis the user is paired sample t-test and doubled regression. In addition, double regression analysis with market overreaction, dividend policy, firm size and the January effect as independent variables and price reversal as the dependent variable.

Findings - Regression test showed that in the group winner stocks, market overreaction, firm size and January effect have an effect on signs of price reversal. And dividend policy has no significant influence. For the group of loser stocks, market overreaction, dividend policy, firm size and January effect affect both simultaneously and partially on price reversal.

Novelty - The study contributes decision making of investors in Indonesia financial market with its evidences.

Type of Paper: Empirical

Keywords: Market Overreaction; Dividend Policy; Firm Size; January Effect; Price Reversal.

JEL Classification: G11, G14, M41.
Whistle Blowing in The Police Sector: The Importance of Control Behaviour Factor and Professional Commitment
Authors: Surya Raja Adri Satriawan , Zarefar Arumega , Mela Nanda Fito
Published: June 2021

Objective - This study aimed to examine the effect of perceived behaviour control and professional commitment to the interest of doing whistleblowing. This research was conducted at the police department in Riau province.

Methodology/Technique - The sample in this study was taken by using the method of data collection is called purposive sampling. The samples used in this research were 90 respondents which were all police officers working in the finance department. Data were analysed using SPSS version 20.

Findings - The results showed that perceived behaviour control affects the interests do whistle blowing. Secondly, professional commitments do affect the interest of whistle blowing.

Novelty - The research contributes to the related literature with its original data.

Type of Paper: Empirical

Keywords: Police Sector; Perceived Behaviour Control; Professional Commitment; Whistleblowing Intention and SPSS.

JEL Classification: J53, M41, M54.
Fundamental Effect of Implementation of Corporate Social Responsibility and Value Based Management on the Equity Value of Hotels in Bali
Authors: Yuniarta Gede Adi , Purnamawati I Gusti Ayu
Published: June 2021

Objective - The purpose of this study was to examine the implementation of the fundamental effects of Corporate Social Responsibility and Value Based Management on the Equity Value of hotels in Bali.

Methodology/Technique - The data collecting used purposive sampling method. The effects of moderating variables were tested using Moderated Regression Analysis (MRA).

Findings - The research proves that there is a significant fundamental effect of the implementation of Corporate Social Responsibility and Value Based Management on the Equity Value of hotels in Bali. The fundamental effects prove that although the implementation of Corporate Social Responsibility cause the release of funds that is quite significant but it gives positive effects on companies that has fundamentally led to increased equity value in the eyes of investors.

Novelty - The study proves that the expenditure on Corporate Social Responsibility can positively affect the stock price of a firm.

Type of Paper: Empirical

Keywords: Hotel; Value Based Management; Corporate Social Responsibility; Equity Value of The Company.

JEL Classification: M14, M41.
Impact of Tri Hita Karana Culture on the Use of Accounting Information Systems and User Satisfaction as the Expression of Information System Success
Authors: Budiasih I Gusti Ayu Nyoman , Suardikha I Made Sadha
Published: June 2021

Objective - The research aims to examine whether Tri Hita Karana (THK) culture influences the use of Acccounting Information System (AIS) and user satisfaction as the expression of Information Systems (IS) success.

Methodology/Technique - The research was conducted in Badung Regency with Customary Village Financial Institution (LPD) as the sample. This research observes 55 LPDs in Badung Regency. The data was analyzed using SEM analysis with a PLS approach.

Findings - The results of this research show that THK culture influences the use of AIS; THK culture influences through perceptions of use and perceptions of simplicity; THK culture influences user satisfaction through perception of use, perception of simplicity, and the use of AIS; perception of use and perception of simplicity influence the use of AIS; perception of use does not influence user satisfaction; perception of simplicity influences user satisfaction; AIS use effects user satisfaction; perception of use effects user satisfaction through the use of AIS.

Novelty - The research suggests that suggestions for developing AIS in LPDs across Badung Regency or for further research in the field of AIS include: (1) dividing the LPDs into groups based on their business scale (either their amount of capital or the amount of assets owned); and (2) further exploring the impact of THK culture on the use of AIS;

Type of Paper - Empirical

Keywords: THK Culture, Perception of Use, Perception of Simplicity, AIS, User Satisfaction.

JEL Classification: M40, Z12.
Ethnographic Agency Relationship in The Context of Budget: Portrait of Local Wisdom Harmonization in Bali Pakraman Village
Authors: Damayanti Ratna Ayu , Rahmawati Rahmawati , Tenriwaru Tenriwaru
Published: June 2021

Objective - This study aims to explore the interaction between principal and agent relationship in traditional villages in the context of the budget. Also, this study shows the importance of local wisdom as a guide and as a source of knowledge, to fill and form the pattern of an agency relationship in the context of a more harmonious budget.

Methodology/Technique - The research method used is ethnography. Ethnography is the science of writing about race, using a more contemporary language. Ethnography can provide detailed information on the daily activities of a culture in a group. Therefore, it could make detailed notes about the behavior and beliefs of the group from time to time.

Findings - This study found that the interaction between principal and agent in traditional villages in the context of the budget have using local wisdom as a guide and as a source of knowledge. Balinese local wisdom forms the pattern of an agency relationship in the frame of a harmonious budget. The characteristics of Bali is very obvious from Hindu religion, customs, and culture. All are united in a harmonious atmosphere, which cannot be separated from the participation of all the components, as well as cultural heritage. The principle of people unity has been there long before Indonesia's independence, namely Pakraman village.

Novelty - This study has explored the myth and value of traditional village in Bali by using ethnography methodology, which is taken the deep value of Bali tradition.

Type of Paper: Empirical

Keywords: Budget, Agency Relationship, Village, Bali, Accounting.

JEL Classification: P11, R51.
Audit Firm Reputation versus Auditor Capability: Their Effect on Audit Quality in Indonesia
Authors: Rudyanto Astrid , Daniswari Dipta , Oktaviani Yuli
Published: June 2021

Objective - The emergence of the ASEAN Single Window has triggered the need for higher audit quality in ASEAN countries, including Indonesia. A recent study conducted in Indonesia reveals that the reputation of auditing firms, as rated by clients and users, and auditor's competence, as rated by the auditor, are the primary determinants of audit quality. The purpose of this study is to analyze whether the reputation or competence of an auditor affects audit quality, within manufacturing companies in Indonesia.

Methodology/Technique - This paper contributes to the creation of new measurements for auditor capability, by highlighting empirical evidence concerning the determinants of audit quality in Indonesia.

Findings - By using discretionary accrual as the inverse determinant of audit quality, the result show that financial statements audited by reputable auditing firms contain the same discretionary accruals as those audited by other firms. The results further demonstrate that auditor capability does not affect audit quality. Audit quality in Indonesia is therefore not determined by firm reputation or auditor capability. Hence, it is important to search for new determinants of audit quality.

Research Limitations/Implications - The limitation of this research is the low number of reputable audit firms and specialized auditors used by the sample firms, which lead to the exclusion of numerous controlled variables that may be integral when explaining audit quality. Future studies may use other sample firms and use additional controlled variables, to further explain audit quality.

Type of Paper: Empirical

Keywords: Audit Quality; Discretionary Accrual; Audit Firm Reputation; Auditor Capability.

JEL Classification: M40, M42.