bluuebunny/crossref_metadata_2025 huggingface dataset:
AN INDOOR POSITIONING SYSTEM BASED ON COMBINED AUDIO CHIRP/MEMS/FLOOR MAP: PERFORMANCE ANALYSIS OF KEPLER A100
Authors: Huang L. , Chen R. , Ye F. , Liu Z. , Li Z. , Xu S. , Guo G. , Qian L.
Published: April 2022

Abstract. In recent years, audio positioning technology has been more favoured because it is not only highly accurate but also universally applicable to the mass users. In line with this trend, a chip dedicated to indoor positioning, the Kepler A100, has been released lately, which ranges by estimating the arrival time of the audio chirp. As with radio ranging techniques, sound-based ranging methods is subject to significant observation errors due to Non-Line-Of-Sight (NLOS) or multi-path effects, while Pedestrian Dead Reckoning (PDR) based on inertial data have the disadvantage of error accumulation. Both make localization challenging. In this paper, the ranging performance of the Kepler A100 chip is evaluated and experiments are conducted in two typical indoor scenarios to verify the stability and sub-metre accuracy of the ranging results. Meanwhile, this paper implements an indoor positioning system combining audio chirp/Micro-Electro-Mechanical Systems (MEMS)/floor map based on particle filtering algorithm. A new mapping constraint method is applied in the system, which can effectively constrain the particles in a reasonable space. Experiments are conducted in two complex office environments and the results show that the error of the proposed algorithm is about 0.65m in 95% of cases, a reduction of more than 40% compared to only-PDR or only-audio. The effectiveness and stability of the method is demonstrated.
CONVOLUTIONAL NEURAL NETWORKS BASED GNSS SIGNAL CLASSIFICATION USING CORRELATOR-LEVEL MEASUREMENTS
Authors: Jiang C. , Chen Y. , Xu B. , Jia J. , Sun H. , He Z. , Wang T. , Hyyppä J.
Published: April 2022

Abstract. In urban areas, the None-Line-Of-Sight (NLOS) and Multipath (MP) signals are the major issues degrading the GNSS position accuracy. Signal reception type should be identified before correcting the NLOS or MP induced errors. Signal features, i.e., signal strength, change rate of received signal strength, difference between delta pseudo-range and pseudo-range rate, have been explored in signal reception type classification. In this letter, with the aim to improve the signal classification accuracy, we propose a new GNSS NLOS/MP/LOS signals classification method using the correlator-level measurements. Firstly, vector tracking (VT) is employed to generate correlator-level measurements; secondly, a deep learning method, Convolutional Neural Network (CNN), is employed to automatically extract the features and identify the signal reception type, correlators’ outputs calculated at different code phases are employed as the inputs of the CNN. Field test is carried out for assessing the performance of the proposed method, and the CNN method obtains state-of-art performance compared with the K-nearest Neighbors Algorithm (kNN) and Support Vector Machine (SVM) methods.
PEDESTRIAN INERTIAL NAVIGATION ALGORITHM BASED ON SCENE RECOGNITION
Authors: Lei T. , Li Y.
Published: April 2022

Abstract. As indoor location-based services become increasingly essential to people's daily life, it is necessary to build a stable and accurate indoor pedestrian positioning system. The foot-mounted inertial navigation system can provide a short-term robust solution but suffer from error accumulation over time. To alleviate this issue, this paper proposes a pedestrian inertial navigation algorithm based on scene recognition to reduce the heading drift. Based on the hypothesis that corridors in buildings are generally narrow and straight and pedestrians have a high probability to walk in straight lines in corridors, we use a scene recognition model to assist foot-mounted INS. When the scene recognition model determines that the pedestrian is walking in a corridor, a straight-line constraint will be implemented to reduce the heading drift and improve the observability of the vertical gyroscope bias. Experiments show that the algorithm can effectively improve the navigation performance and the observability of vertical gyroscope bias when the sensor biases are significant.
UNDERWATER ACOUSTIC MODEM WITH HIGH PRECISION RANGING CAPABILITY
BASED ON SECOND-LEVEL CESIUM ATOMIC CLOCK
Authors: Li J. , Tong F. , Jiang W. , Roy S.
Published: April 2022

Abstract. Equipped with a high-precision atomic clock can significantly improve the ranging accuracy of the underwater acoustic ranging system. However, the adverse characteristic of underwater acoustic channel (UAC) seriously deteriorates the ranging accuracy. In addition, as a timing device typically commercial cesium atomic clock is only designed to output second-level time reference, which cannot be applied to underwater ranging systems directly. To overcome this limitation, a new underwater acoustic modem with high precision ranging capability based on second-level cesium atomic clock is developed in this paper. The spread spectrum technology is chosen for highly reliable communication and the second-level commercial cesium atomic clock is used to ensure accurate clock synchronization. The proposed modem executes a predetermined ranging scheme based on spread spectrum technology. Specifically, at a certain specified second-level, the transmitter modem sends the ranging signal, and the receiver modem starts timing. Until the receiving modem detects the ranging signal, the propagation time is obtained and the single-item ranging capability is realized. The pool experiment shows the effectiveness of the modem, its ranging accuracy can reach cm level, and the average absolute error of ranging is 8 cm.
VEHICLE POSITIONING IN UNDERGROUND SPACE USING A SMART PHONE
Authors: Li L. , Huang Q. , Xu K. , Guo G. , Chen R.
Published: April 2022

Abstract. Smartphones is a good choice for vehicle navigation since many navigation sensors are built-in with low cost advantage. However, it cannot provide reliable positioning information in underground space since GNSS is not available and IMU drift quickly. In this manuscript, a mixed navigation scheme for smartphone consumer is presented. It combines GNSS, INS, Non-Holonomic Constraint (NHC) and Bluetooth Low Energy (BLE) to provide reliable seamless navigation in both outdoors and underground. Some important problems including smartphone boresight misalignment, HNC level arm, GNSS and BLE time lag are discussed in the manuscript. The testing results show 3.1% /D horizontal positioning error in tunnel in INS/NHC positioning mode, and approximately 1 meter accuracy in underground parking garage in INS/NHC/BLE mode.
ACCURACY EVALUATION OF MULTI-GNSS DOPPLER VELOCITY ESTIMATION USING ANDROID SMARTPHONES
Authors: Li Y. , Wang L. , Liu J. , Zhang P. , Lu Y.
Published: April 2022

Abstract. The number of smartphone users has increased dramatically as smartphones have become more widely available. The mass-market urgently requires the deployment of low-cost GNSS chips in smartphones to achieve continuous, high-precision velocity and location services. Currently, most GNSS velocity determination research relies on traditional geodetic receivers and focuses on comparing velocity determination methods and analyzing velocity determination influencing factors, while research into the direction of multi-GNSS velocity determination for smartphones is insufficient. To solve this problem, we study the differences in velocity determination accuracy of Android smartphones with single-constellation, dual-constellation and multi-constellation focusing on BDS-2 and BDS-3. The results show that the accuracy of velocity determination differs significantly between different mobile phone models. The velocity determination accuracy of BDS is the highest in all single constellations, and the accuracy of BDS-2, BDS-3 and GPS are not much different. The velocity determination accuracy of dual-constellation and multi-constellation is better than single-constellation. In static velocity determination, the Huawei nova5 quad-constellation velocity determination error is in the cm/s level, while the Redmi K40 error is in the dm/s level. In kinematic velocity determination, the Huawei nova5’s quad-constellation velocity determination error in horizontal and vertical directions is 1.06 dm/s and 1.77 dm/s respectively; The Redmi’s quad-constellation velocity determination error in horizontal and vertical directions is 3.76 dm/s and 4.59 dm/s respectively.
OPTIMAL LINEAR COMBINATIONS SELECTION BASED ON FUZZY CLUSTERING ANALYSIS FOR MULTI-FREQUENCY GNSS
Authors: Li Y. , Yan H. , Yang W. , Wang S. , Su X.
Published: April 2022

Abstract. Currently, satellite navigation and positioning systems, such as BDS, GPS, and Galileo, can broadcast 3 or more navigation signals. In theory, multi-frequency signals can form more high-quality carrier-phase linear combinations, which is conducive to improving the performance of multi-frequency carrier ambiguity resolution (MCAR). In this paper, focusing on the selection of the optimal combinations in the multi-frequency GNSS carrier phase ambiguity resolution, according to the long wavelength of the combinations, the influence of weak ionospheric delay, and low noise, the fuzzy clustering analysis method is used to realize objective selection of multi-frequency optimal linear combinations (e.g., GPS, BDS-2, BDS-3, Galileo) and introduced the total noise level (TNL) for the analysis of the combinations characteristics under different baseline length scenarios. In order to verify the ambiguity resolution performance of the extra-wide lane combinations selected by the fuzzy clustering analysis method, the GF_MCAR model was used to solve the BDS-2, BDS-3 triple-frequency combination ambiguities and the BDS-3 five-frequency combination ambiguities of the baseline JNFG and WUH2. The results manifest that the number of high-quality linear combinations of multi-frequency GNSS increases sharply with the increase of the frequencies number, which is conducive to the formation of combinations with a lower total noise level, and the experiments show that the difference between adjacent epochs of the combination ambiguities of the extra-wide lane obtained by GF_MCAR is basically less than ±0.5 cycles, and the single epoch rounding can be used to directly fix the ambiguity of the extra-wide lane.
Apicificação de dente com ápice aberto utilizando MTA: relato de caso
Authors: Travassos Rosana Maria Coelho , Acioli Anny Caroline Rodrigues , Barbosa Allana Marcela Cavalcanti , Cruz Gabriela Vasconcelos , Melo Jacksuel Azevedo , Souza Jacqueline Vitória Mendes de , Menezes Maria Luiza Siqueira de
Published: April 2022

O tratamento endodôntico de dentes permanentes jovens com rizogênese incompleta é uma das grandes dificuldades encontradas pelos cirurgiões-dentistas, devido ao fato dos ápices estarem abertos com paredes dentinárias finas e divergentes. A apicificação induz a formação de uma barreira calcificada que pode determinar o completo ou incompleto desenvolvimento radicular. O objetivo deste trabalho foi o de descrever um caso clínico de dente portador de lesão periapical portador de ápice aberto. A terapêutica realizada foi conduzida para desenvolver uma barreira com MTA.  Dessa forma, a desinfecção do sistema de canais radiculares foi realizada com limas da terceira série e como medicação intracanal utilizou-se o Ultracal. Após 15 dias foi realizada a barreira com MTA, e após 24 horas realizou-se a obturação do canal com a confecção de cones rolados. Dessa forma, conclui-se que a terapêutica dentro das normas técnicas determina o sucesso do tratamento de dentes portadores de rizogênese incompleta.
Fibromialgia e exercícios físicos: uma revisão de literatura
Authors: Arantes Matheus de Oliveira , Gonzalez Giuliana Maria Morais , Oliveira Maressa Chagas , Ribeiro Nádia Maria Gomes Rios , Lucena Antonio Ycaro Rodrigues , Melo Ethnary Monteiro de , Santos Alessa Maria Ribeiro , Pitoscia Gabriela Orlandi , Castro Italo Moraes , Ferreira Francis Aiala de Araújo , Araújo Bruna da Costa , Araújo Paulo da Costa , Souza Marina Ferreira de , Pinheiro Camila de Paula Chidiak , Souza Lucyjane Amorim de , Santos Ana Luiza Reis , Pascal Ana Victória Pinho de Carvalho , Boza João Marcelo Domingues Bispo de Oliveira , Sousa Ana Luisa Siqueira , Silva Raquel Cristina de Lima Leite e , Carvalho João Pedro de Araújo , Facundo Karolainy Silva , Melo Ana Kelly Pinto de , Cutrim Júnior Clenilson de Jesus , Assub Isabella Magalhães , Gomes Maria Eduarda Mendes
Published: April 2022

A fibromialgia (FM) é uma síndrome de dor crônica e difusa, que se caracteriza pela presença de múltiplas regiões dolorosas, denominadas tender points (ou pontos gatilho). Sua fisiopatologia envolve sensibilização central, as alterações no processamento de estímulos nociceptivos periféricos e o déficit funcional do sistema modulatório descendente. A atividade física é capaz de elevar os níveis de serotonina e endorfina, os quais se encontram diminuídos em pacientes com SFM. Este estudo possui o objetivo de descrever a relação entre a prática de atividade física e a melhora sintomatológica da fibromialgia. Foi realizado um estudo quantitativo e retrospectivo com abordagem descritiva, desenvolvida com base em materiais já elaborados e publicados entre 2015 e 2021, coletados nos bancos de dados bibliográficos: PUBMED e SCIELO, em língua inglesa, portuguesa e espanhola. De acordo com a pesquisa realizada, as obras selecionadas afirmaram que a prática regular de atividade física de intensidade moderada causa um efeito positivo em longo prazo sobre a forma física, a dor, o impacto da doença e a qualidade de vida em pacientes com fibromialgia. Dessa forma, para melhora da sintomatologia, além do tratamento farmacológico, é fundamental a prática de exercício físico de qualquer forma, desde que realizado regularmente.
Canada Commons
Authors: Ridgway Allison , Watson James
Published: April 2022

As the successor to the Canadian Electronic Library, Canada Commons aims to continue as a source for Canadian e-books and government and policy documents. Holdings include over 19,000 e-books, and indexation and linking to over 133,000 publications. The Canada Commons interface has
a simple, appealing design that does not overwhelm the user. Built using Coherent Digital's Commons Platform, it is nearly identical in design and functionality to the company's Policy Commons database. Given the limited number of products geared for the Canadian library market, Canada Commons
provides access to Canadian e-books, government and policy documents that users will not get in Gale OneFile: CPI.Q or ProQuest Canadian Business & Current Affairs (CBCA), both of which are standard databases in most Canadian academic libraries. Canada Commons will appeal to public, academic,
and corporate library users.
CLCD (Children's Literature Comprehensive Database) Enterprise
Authors: Sugrim Sonali
Published: April 2022

CLCD Enterprise is one of three products offered by CLCD (Children's Literature Comprehensive Database), LLC. CLCD Enterprise is an online database that provides access to book reviews, thematic lists, award winning content and curriculum tools of disparate collections for grade pre-K
through 12 media of all types. The database allows for power search, advanced search, and award search options for browsing and locating content. CLCD Enterprise is available through a subscription and valuable for those in education, library and information science and literature fields looking
for a tool to expand on collection and curriculum development, and reader advisory suggestions for pre-K through 12 materials.
Ebony Magazine Archive
Authors: Williams Patrice Jane
Published: April 2022

The Ebony Magazine Archive is a very important African-American cultural resource of images, news, entertainment, and much more between the years 1945-2014. It is a primary resource database geared toward academic research in the humanities, but other disciplines may also benefit from
the rich content of the archive. Most specifically researchers in art, cultural studies, history, literature, mass media, music, business, and marketing would benefit from the photographs, cartoon/comic strips, advertisements, film reviews, and news reports. In addition, it provides essential
images of key African American figures, businesses, and artists. The searching and search results interface lets the user explore by content type, Boolean/phrases, and SmartText searching among other filters. All content is available through PDF for great accessibility and convenience.
ESAC Initiative
Authors: Gonzalez Lisa
Published: April 2022

The ESAC Initiative is a community of international library practitioners who share data and best practices in order to promote the transition of scholarly publishing to open using transformative agreements. ESAC views transformative agreements as one phase of the transition to open
and to a publishing landscape where scholarship will be available to all in a sustainable and equitable manner. The ESAC website shares the outputs of the community's collaborative efforts and provides information on how to participate in the community.
Global Infectious Disease and Epidemiology Network (GIDEON)
Authors: Kraus-Friedberg Chana
Published: April 2022

GIDEON is an EBSCO database focused on infectious diseases. Entries on drugs, vaccines, pathogens, microbes, and countries provide a wide range of information and data on treatment, pharmacology, epidemiology, and prevalence or incidence of diseases and vaccines by country. GIDEON also
includes interactive tools for differential diagnosis and identifying pathogens, and outbreak maps by country and disease. The database's epidemiological and biochemical focus will likely prevent GIDEON from being a useful point-of-care tool for most healthcare professionals. The interface
also has some accessibility issues, making features like maps and charts unusable for some patrons. However, researchers, faculty, and students interested in infectious diseases will find GIDEON a valuable compendium of relevant information.
Linguistics Database
Authors: Shparberg Anna
Published: April 2022

ProQuest's Linguistics Database (LDB), a collection of over 260 journals in linguistics, serves as the full-text complement to the key indexing database Linguistics and Language Behavior Abstracts (LLBA). Together, these two resources constitute ProQuest's Linguistics Collection, a
suite of products “covering all aspects of the study of language including phonetics, phonology, morphology, syntax, and semantics.”Since most of these journals have short backfiles, going back 20 years or less, it is suggested to pair LDB with another product that offers deeper
chronological coverage (such as JSTOR).
NYTimes.com Academic Pass Program
Authors: Flatley Robert
Published: April 2022

The New York Times (NYT) Academic Pass Program is available to all institutions of higher education. It provides convenient and unlimited access to NYTimes.com including all articles from 1851
to current. Users simply sign up for an account at a unique institutional registration site and then can log on to NYTimes.com on multiple devices with their account. The website is visually appealing,
easy to use and navigate, however the search functionality is not the best.
Philosopher's Index with Full Text
Authors: Tanner Martha A.
Published: April 2022

For institutions with a number of students and faculty doing research in philosophy, Philosopher's Index with Full Text is an excellent resource that fills a need. It is one of few databases specifically devoted to philosophy, and the only one that provides this much full text of key
journals in all areas of the discipline. The ample content this database offers in the subject area far outweighs the few minor limitations in its search functions.
ProQuest One Literature
Authors: McMunn-Tetangco Elizabeth
Published: April 2022

ProQuest One Literature is a rich and essential database for both students and researchers. Updated continually to include a huge array of resources related to criticism, primary texts, author information, and references, ProQuest One Literature will be a welcome addition to literature
collections.
SciTech Premium Collection
Authors: Hardaway Grant
Published: April 2022

The SciTech Premium Collection is a multidisciplinary database created by ProQuest that covers engineering, the natural sciences, technology, and related fields. SciTech is a streamlined package of many of ProQuest's already established science and technology databases. Offering a single
search bar for a multitude of scientific journals and resources, SciTech provides an easy-to-use, all-in-one resource for students and faculty. While not an innovative platform in terms of UX or ADA compliance, the content contained in SciTech paired with the platform's user-friendly design
is essential for any institution that serves science, technology, and engineering disciplines.
Anthropology Plus
Authors: Barrow Ellen
Published: April 2022

Anthropology Plus is a database that contains a compilation of two indexes: Anthropological Index Online (published by the Royal Institute of Great Britain and Ireland) and Anthropological Literature (published by the Peabody Museum of Archaeology and Ethnology at Harvard). Anthropology
Plus offers indexing of core and less well-known journals from the eighteenth century to the present. This resource provides extensive indexing of thousands of sources including journal articles, commentaries, reports, obituaries, and edited works. As of 2022, this database contains 1.1 million
records. Anthropology Plus updates all records monthly and comprises more than 50 languages including Asian, English, German, and Slavic languages. Subjects covered in this database are: Anthropology, Art History, Archaeology, Ethnology, Folklore, Linguistics, Material Culture, Primatology,
and Religious Studies.
Benchmark Library Metrics and Trends
Authors: Beck Thomas J.
Published: April 2022

Per the vendor, Benchmark: Library Metrics and Trends “provides libraries with data visualizations that facilitate comparisons with customized peer groups, Carnegie classes, and nationwide data.” Navigating this database can be somewhat difficult, as it has no starting point
that will be obvious to the user. It takes some time to click on the various tabs and determine what functionality is available and how to use it. Therefore, a new user might benefit from instruction in the use of this database from either the vendor or someone else familiar with it. Despite
these complexities, this resource offers its users a broad and varied range of data on the institutions covered therein. This includes total expenditures, circulation, information services, FTE staff, collections institutional repositories, Interlibrary Loan, group presentations, hours opens
per week, weeks effected by COVID 19, student enrollment, gate-count, and materials and operations expenditures. The last of these includes total salary expenditures for all FTE librarians and other paid staff, as well as student assistants, but doesn't include salary information for specific
positions.There are two levels of access to this database, the first of which is free! It allows academic libraries to view and complete open ACRL surveys and see their responses to previous surveys, among other things. The second level of access is via subscription. It gives libraries
access to all of the free features, plus a custom report builder, interactive data dashboards, and the means to generate custom peer groups. The cost of the subscription portion of this database depends on whether the library subscribing is an academic or company/corporate one, and/or is part
of a consortia. There are also discounts available for ACRL members and libraries that have participated in the database's 2020 survey. Consequently, the subscription price can range from an annual cost of $3,000 (for consortia) to $428 (for academic libraries taking advantage
of all available discounts). Overall, most libraries will find this pricing quite reasonable. However, it's advisable that potential subscribers contact the vendor for a price quote specific to their institution. The licensing agreement for this database isn't particularly long and is in many
ways average in its composition, so it presents little reason for concern.
Gender Inequality: An Alien Practice to African Cultural Settlement
Authors: MİKİDADY Mhando
Published: April 2022

This study investigates the roots of gender inequalities in contemporary African lives. The study has surveyed the pre-colonial, colonial, and post-colonial gender relations in the continent. The study points that during the pre-colonial era there was equilibrium in accessing privileges and chances between men and women, such equal balance was defined by division of labor and specialization. In the colonial phase, however, colonialists favored men and infused the concept of Victorian women in all colonial projects; subsequently, the patriarchal system started to have its hold on African lives. Consequently, the modern African communities have entered into an independence era while incorporating the colonial patriarchal structures into their modern communities. Surprisingly, researchers on the topic under discussion continuously find African cultures' guilt as they still offer patronage to such inequalities as it was in the pre-colonial epoch. Henceforth, its obliteration is essential in a long walk to gender equalities on the continent. On the contrary, this study points that labeling African culture as the enemy of gender equalities is a miss location of the problem source as the problem started from the colonial epoch and therefore these inequalities are the continuation of the legacies of patriarchy structures imposed in Africa by colonizers.
The Dividend Puzzle A Progress Report by Steven V. Mann (1989): A Review with Insights from Philippines’ New Corporate Tax Law
Authors: Conales Madelle
Published: April 2022

This research reviews the progress of the “dividend puzzle” in the finance literature. The article tracks the theoretical evolution of dividend policy and its conceptual and practical differences throughout the years. As such, this paper gives an updated literature discussion on the dividend policies of corporations, its impact to investor preferences, and the linkage to corporate taxes. This literature review implies that the “dividend puzzle” remains unsolved and continues to be an intriguing subject matter as academicians and practitioners alike cannot exactly explain the behavior of investors and corporations as seen in the decades of corporate dividend policies. Furthermore, this article ends with a brief update regarding Philippine’s new Corporate Tax Law (CREATE Law) and author’s brief perspective on dividend policies.
Necessity for modern methods of diagnosing Hepatitis C, especially when overlapping with secondary infection
Authors: Mahira Firudin qızı Amirova  , Gulnara Ibrahim qızı Azizova  , Arzu Dadasheva Ramiz qizi  , Ellada Huseynova Eldar qizi  , Gulnara Vahabova Rafiq qizi
Published: April 2022

In this study, we focused on the antimicrobial peptides and T-lymphocyte clusters indicating the immune system ability to react violently leading to reduce the organism sensitivity to bacteria tested in 87 individuals with chronic hepatitis C. All patients were divided into two groups: with chronic hepatitis C, and the group in which hepatitis C overlaps with secondary infection leading to pneumonia. Endotoxin and lipopolysaccharide-binding protein (LBP) were determined using the ELISA technique. Determination of the clusters of differentiation (CD) carried out by indirect immunofluorescence reaction, while the circulating immune clusters (CIC) identified by method of sedimentation with a 3.5% solution of polyethylene glycol. Statistical processing of the results carried out using the Wilkinson U-test (Mann - Whitney). In the group of patients with hepatitis C, CD25+ was nearly halved, while in group with hepatitis aggravated by pneumonia this value lowered approximately three times. CD25+ indicator in II group was even 1.4 times less than in the group without pneumonia. Defensin levels were significantly higher in the I group, where endotoxin raises up to 24.4 vs normal levels. In the II group, aggravated by pneumonia, endotoxin elevated even up to 57.7 IU/ml, the same direction changed defensin concentration. The results of this study show, that instead of standard tests for liver damage: bilirubin, AST and γ-glutamyl transpeptidase, it is much more expedient to use the antimicrobial peptides defensin and LBP, which are more informative in the diagnosis of hepatitis C, especially when it overlaps with secondary infection.
The response of Mathiola plant to the foliarapplication of Thiamine and Roselle extract on somevegetative and floral growth parameters
Authors: AL-Sultani Raeed S.H. , AL Fahham Ameer A.H.
Published: April 2022

The experiment was conducted during the agricultural season 2020-2021 in lath house covered with saran belonging to the Najaf Directorate of Agriculture / Horticulture and Forestry nursery, to know the response of Matthiola incana L plant to spraying with thiamine and Roselle extract in growth indicators and for flowering. The seedlings were transported in plastic pots with a diameter of 25 cm and a height of 22 cm, with an agricultural medium consisting of soil (river mixture) and peat moss in a ratio of 1:3. The experiment consists of the effect of two factors, the first is thiamine at four concentrations (90,60,30,0) mg.l-1. The second is Roselle extract at four concentrations (0,2,4,6) g.l-1. Thiamine and Roselle extract were sprayed by two sprays, between the first and second sprays, 21 days. The experiment was factorial, consisting of three replicates, and the experiment was conducted according to a randomized complete block design (R.C.B.D) 4Ã4Ã3=48. The mean was compared according to the least significant difference (L.S.D) test and at the probability level (0.05). The most important results can be summarized: Thiamine at a concentration of 90 mg.l-1 with Roselle extract at a concentration of 6.4 g.L-1 was significantly excelled to the study indicators, where the plant height, number of leaves, dry weight of vegetative growth, number of days to flowering, number of inflorescences and floret diameter increased. The number of florets was 17.06 cm and 45.40 leaves. Plant-1 and 4.14 g and 97.00 days and 5.00 inflorescence. Plant-1 and 3.56 cm and 18.33 flowers plant- 1 compared to the control treatment, it was 9.46 cm and 18.90 leaves.plant-1 and 1.81 g and 105.33 days and 1.00 inflorescence.plant-1 and 1.80 cm and 10.67 flowers.plant-1 and 13.88 days respectively.
Characteristic of Tourist Movement Pattern in Muar Royal Town, Johor
Authors: Azman Nor Afifin Nadia M Noor , Rahman Nur Hidayah Abd , Sawari Siti Salwa Md , Abas Siti Aisah , Latif Samshul Amry Abdul
Published: April 2022

The movement and mobility of human on the earth always continuously occurred due to of the needs as a human being. The movement creates relationship between human emotional values with visited places. However, tourists nowadays face limitation in their movement of journey while visiting plenty of attractions especially in Muar Royal Town, Johor. This article aims to determine the characteristic of tourist movement pattern in Muar Royal Town, Johor. This research applied a qualitative method through a semi-structured interview with seven respondents who have visited Muar, Johor. The result demonstrates the characteristic of touristâs movement pattern has a significant interaction in investigating the visiting characteristic as well as the spatial data and movement. In the macro level movement pattern, the findings indicate that Muar has the potential to be developed as a one day and three days one-night destination. Thus, it has positively affected to tourism destination management for improving the travel package for domestic and international tourists. The main contribution of this research is using the interview technique in investigating the complex visitor mobility during travel that related to the physical environment factor such as attractions, route and accessibility, and mode of transportation which effected by touristsâ movement behavior pattern.
New method for amylase production using metagenomics applications
Authors: Ali Safaa M. , Soliman Nadia A. , Abdal- Aziz Samia Abd Allah , Abdel Fattah Yasser R.
Published: April 2022

The traditional method of isolating enzymes from pure cultures only allows for the studying of a subset of the total naturally occurring microbiota in microorganism-rich environmental samples. Conventional methods are known to be able to cultivate less than 1% of all microorganisms found in nature. With the aim of isolating new enzymes and creating a special library for the amylase enzyme that has special capabilities from previously transplanted organisms, the metagenome technology has been directed. Soil DNA was isolated and the pUC19 vector was used for a metagenomic library creation. The resulted libraries were tested for enzymatic hydrolysis, and 8 clones out of 177 recombinant Escherichia coli clones found to have amylase activity by the fast traditional method for amylase screening. The libraries were examined for enzymes capable of breaking down starch. The best clones were selected to produce amylase. Two clones gave the highest amylase activity using quantitative methods. The inserted gene into clones were sequenced, and turned out to be an amylolytic enzyme that is new generated by a novel gene. For characterization, the amylase gene (SNSY) was over expressed and purified. The best Amyl SNSY enzyme activity was found at pH (8.0), temperature (55Â°C) and resistance to NaCl up to 3 M. This research provided a simple and reliable method for cloning recent amylase genes from ecological metagenomes. In the future, the Metagenomics guide method may be useful in increasing the collection of novel amylase from the environment.
Effect of Pinus halepensis reforestation on soil fertilityin the forest of Beni Sohane (Ribat Al Kheir Region -Morocco)
Authors: Benarchid Khalid , Khatori Mohammed , Hilali Said
Published: April 2022

The purpose of this study is to determine the effect of reforestation of Pinus halepensis on soil fertility in the Beni Sohane forest. The Physico-chemical analysis was carried out on 24 soil samples collected at two depths of 0-10 cm and 10-30 cm. The soil samples were collected from 45-year-old reforested plots and native forest controls. The results revealed that reforestation with P. halepensis did not affect the pH, while it had negative effects on the content of all other nutrients, especially for Olsen phosphorus and boron, whose levels were significantly lower than those recorded in the native forest. The negative impact of reforestation was most accentuated in the topsoil layer of 0-10 cm. At this layer, the average content of all nutrients was -39% lower than the average content of the native forest, while at a depth of 10-30 cm it was only -18%. It seems that the sustainable restoration of degraded lands would depend on the prevalence of ecological considerations, favoring native forest species rather than expansionist exotic species such as P. halepensis.
Ballast Water Management in Indonesian Port Basedon Environmental Risk Assessment
Authors: Basuki Minto , Lukmandono Mr. , Zau Beu Maria Margareta
Published: April 2022

The purpose of this study was conducting a risk assessment of the environment due to the implementation of ballast water management on vessel operations. Environmental risk assessment was based on the pertaining laws and regulations of the government of Indonesia Republic and international laws, as well as the sample comprising vessels operating in Indonesian waters. The data used for the analysis were based on the visits of the vessels operating in the operation territory of Inaport I - Inaport IV. The analysis was carried out based on the number of vessels that unload the ballast water at the port and IMO regulation MEPC 56/23 ANNEX 2. The amount of ballast water unloaded measurement used statistical method to determine the probability of risk occurrence. Using a risk matrix, the ranking of environmental risk due to the implementation of ballast water management would be achieved. In 2016, the numbers of ship visited in International route were 30.843 ships and the assumption was the ships conducted deballasting was 60% from the ship numbers in each time throwing ballast water around 25 tons, so, the total water discharged was 450.000 tons.
Integrated empowerment model of traditional fisherman’ wives in Sungsang Coast, Banyuasin-Indonesia
Authors: Nuryamsasni Mr. , Siswanto Ari , RasyidRidho Moch. , Wildayana Elisa
Published: April 2022

The present study aims to propose a comprehensive model arranged by the role of female fisherman during the high fishing season in Sungsang coastal area of Banyuasin regency, Indonesia. The quantitative methods using a questionnaire, field observation, and deep interview with 116 respondents consisting of fishermanâ wives and children were used as the input for the model. The study was conducted from June 2019 to March 2020 and was in 5 villages in Sungsang coastal area. The statistical analysis using the linear regression approach and path analysis was used to obtain a suitable model for the studied cases. The result showed that the fishermanâs wives played the important role related to handle and manage the assets and network development. The formulation of empowerment model indicated that the improvement should be made such as the specific program for woman empowerment to educate the fishermanâ wives about handing the assets and taking them into the land activities during the high fishing season.
Characterization of the proximate content and fattyacid profile of squid (Loligosp). from Maluku waters
Authors: Matakupan Jolen , Suprayitno Eddy , Sri Widodo Mahenno , Sulistiyastuti Titik Dwi
Published: April 2022

Cephalopod production from year to year has also increased. The purpose of this study was to compare the results of the proximate composition analysis and the characterization of the fatty acid content of squid (Loligo sp.) Obtained from Maluku waters. The analysis results showed that the proximate content in the form of the highest protein was in the waters of the Aru archipelago, followed by the regencies of West Southeast Maluku and West Seram (19.85%, 16.78%, 14.66%). The highest carbohydrates were in the samples from the waters of West Seram Regency then West Southeast Maluku and Aru Islands (7.3%, 3.3%, 2.09%). The highest fat content was dominated by samples from the waters of West Seram Regency, followed by West Southeast Maluku and Aru Islands (1.23%, 0.94%, 0.91%). The samplesâ moisture collected was almost the same at the three locations, namely 76.58% in the waters of West Southeast Maluku Regency, 75.25% in West Seram, and 74.66% in the waters of Kepualauan Aru. The composition of ash and fiber was dominated by samples collected from the Aru Islands and Western Seram District (249% and 2.46%). The Fatty Acid test found that the results varied between locations, namely non-essential fatty acids, namely Palmitic Acid, which was dominated by location, and essential fatty acids, namely DHA, EPA, and ARA.
Shoreline Evolution and Mangrove LandscapeTransition in Probolinggo, East Java, Indonesia
Authors: Saputra Dhira K. , Darmawan Arief , Silitonga Nurfalah , A. Asadi Muhammad , Aliviyanti Dian , Zainul Fuad Mochamad Arif , Arsad Sulastri
Published: April 2022

Northern coast of Java represents a region with dynamic shoreline, caused by large-scale conversion of mangrove and intense coastal development. Since 2000s, several mangrove rehabilitation activities have been carried out in Probolinggo, aimed to restore habitat as well as prevent coastal erosion. The purpose of this study was to analyze temporal mangrove evolution in western Probolinggo, in correlation with shoreline change. A series of temporal Landsat satellite represents an overview of four decades mangrove evolution along the coastline of western Probolinggo, while 34 sampling plots were carried out for mangrove groundcheck during 2018 â 2020, completed with UAV orthoimages from selected locations. Result showed that over the past four decades (1978 - 2020), mangroves in Tongas and Sumberasih experienced depreciation of 16 ha and 106 ha respectively. Most of mangrove area were converted for agricultural and aquaculture activities. River mouth areas with mangroves tend to prograde, with growth of the coastline reaching 600 m seawards and accretion rate of up to 17 m/yr, while exposed areas tend to erode. Less successful mangrove rehabilitation activities occurred on exposed coastal areas with no natural mangrove vegetation over decades. These results can be used as consideration for sustainable mangrove management.
Local environmental governance in Bangladesh: Howfar are municipalities involved in achieving environmental sustainability?
Authors: Mahmudul Haque A.K.M. , Aminur Rahman Syed Mohammad , Fazlul Hoque A.K.M. , Salehin Md. Asfaq
Published: April 2022

Understanding the issues of local environmental governance is crucial for both the environment and for policy. This paper examines the performance of local government institutions such as municipalities in terms of their environmental responses in their responsibilities. Authorities of two municipalities and stakeholders are the primary sources of data in this study. Based on their responses, the findings are that these municipalities barely qualify as urban governing bodies in ensuring environmentally friendly governance. They are found to be highly inactive in ensuring environmental sustainability in their regular and development programs. Stakeholders are found to be greatly deprived of the services they should receive from their local authorities. The expectations of stakeholders and the actual services delivered by the authorities in regard to the environment are significantly out of step with each.
Study of foliar boron and zinc applications andground addition of seaweed extract (Acadian) onvegetative and flowering growth traits of Strawberry
Authors: Saleh Yusra M.
Published: April 2022

The study was conducted in the greenhouse of Department of Horticulture and Landscape Gardening deportment, College of Agriculture and Forestry, University of Mosul Iraq. During the growing season 2018-2019. To study the effect of foliar spraying with boron at two concentrations (30 and 60 mg / l boric acid) and foliar spraying with two concentrations of zinc (50 and 100 mg /l zinc sulfate) and the ground addition of (Acadian) Seaweed extract at two concentrations (4 and 8 g/l) in addition to the control treatment (untreated plants) in the vegetative growth, flowering and yield traits of strawberry plants. A Randomized Complete Block Design (R.C.B.D) was used to implement the experiment, with three replications.
N-hexane Fraction of Bandotan Herb (Ageratumconyzoides L.) Increasing Doxorubicin cytotoxic Effect in MCF-7 Breast Cancer Cells Line
Authors: Febriansah Rifki , Lubis Windy Andriati , Bakhtiar Muhammad Taher
Published: April 2022

Breast cancer is one of the most common cancers that causes the highest morbidity and mortality in humans. Some anticancer medicines are not efficient and also have many side effects. Based on the Previous researches showed That bandotan herb extract contained several compounds which potentially have anti-microbial, anti-inflammatory and anti-cancer effects. This study aimed to analyze the cytotoxic activity and cochemotherapy effect of n-hexane fraction of Bandotan (NFB) combined with doxorubicin in MCF-7 breast cancer cells line by in vitro assay and study the molecular mechanism of the active component NFB by in silico assay, with HER-2 as protein target. Antioxidant activity test of NFB measured by DPPH method and cytotoxicity assay of NFB performed with MTT assay method was carried out by molecular docking method between ageratochromene dimer (compound marker of bandotan) on HER-2 protein. Based on the research showed that 1 kg of Ageratum conyzoides L. herb powder obtained 1.5g NFB concentrated exctract which would then be utilized in antioxidant and cytotoxic test. The docking molecular method results showed NFB as a potential cytotoxic agent mediated by the ability of ageratochromene dimer inhibited HER-2 protein targets with docking score of -6.2 kcal/mol and doxorubicin as comparison with docking score of - 6.9 kcal/mol. Antioxidant activity of NFB showed the IC50value was 493 Âµg/ml. The NFB had low potency as citotoxic activity with IC50 value was 306 Âµg/ml to inhibit the growth of MCF-7 cells line but showed synergistic effect in combination with doxorubicin with Combination Index (CI) value between 0.53-0.90. From the result obtained it could be concluded that the NFB has weak potential as antioxidant and single cytotoxic activity but has synergistic effect as co-chemotherapy when combined with doxorubicin on MCF- 7 breast cancer cells line.
Studies on freshwater crab population as influencedby physico-chemical attributes in Gho-Manhasanstream, a tributary of river Chenab
Authors: Dhar Menakshi , Langer Seema , Rajput Sukanya
Published: April 2022

Crustaceans are distributed world-wide and are found in a variety of habitats. Freshwater crabs constitute one-fifth of the brachyurans all over the world. Freshwater crabs are the eminent indicators of good water quality. The present study was carried out with an aim to assess the influence of various physico-chemical parameters such as temperature, pH, depth, dissolved oxygen, free carbon dioxide, calcium, magnesium, bicarbonates and chlorides on the population of crabs in the Gho-Manhasan stream, a tributary of river Chenab. A comprehensive study of these parameters and a comparative analysis with those recorded in last eight years span gave a clear picture of the pollution stress due to anthropogenic activities in the water body that has led to a considerable decline in the population of crabs in this stream. This emphasizes the need to spotlight and improve measures of conservation before there is decline in the crab population to the levels from which they cannot recuperate.
Groundwater Regulation Bills in Haryana – A Call forGroundwater Conservation and Management forSustainable Irrigation Supply Services – Opportunitiesand Challenges
Authors: Parakh Dishant , Chaudhuri Sriroop
Published: April 2022

Over-reliance on groundwater resources for irrigation has helped achieving food/nutritional targets, at the expense of growing increased vulnerability of water resources in the northwest Indian states. In this reconnaissance study, we take Sonipat district, Haryana as a microcosm, to evaluate potential impacts of Haryana State Groundwater Management and Regulation Bill, 2008 and Haryana Preservation of Sub-Soil Water Act 2009, to understand future requirements of groundwater resources conservation/management. Well level groundwater level (GWL) information was obtained from the Central Groundwater Boardâs archive, between 1996 and 2018, disaggregated by tehshils and growing seasons. Results indicated statistically significant (p<0.05) âshallowingâ of median GWLs in the Post-Bill periods (2009-2013 and 2014-2018) in the Sonipat and Ganaur tehshils, for all growing seasons, which might gratify the authorities about âsuccessâ of the two Regulatory Bills to conserve groundwater. However, (i) presence of âoutliersâ in Sonipat and Ganaur tehshils (deeper GWLs); (ii) dropping monitoring efficiency over years; and (iii) growing water resources vulnerability by predictive geostatistical modeling, question the above. For future conservation efforts, we urge the authorities to integrate three spheres: (1) Process-based Groundwater Research and Development; (2) Creating an Enabling Environment at Grassroots; and (3) Policy Appraisal and Institutional Changes.