bluuebunny/crossref_metadata_2025 huggingface dataset:
Sosialisasi Tata Kelola Dana Bantuan Sosial Masyarakat Serta Aksi Bebrbagi Jumat Berkah
Authors: Purwanti Purwanti , Nurfitriani Nurfitriani , Zilfana Zilfana , Aidhi Akhmad Al , Verahastuti Camelia , Seftianur Muh Achzani , Putri Melisya
Published: August 2023

Social assistance (Bansos) has received great attention from many parties because many are interested in the existence of social assistance itself. The process of budgeting, evaluation, and monitoring must be carried out in a transparent and accountable manner as part of the administration of social assistance funds so that the public is aware of the methods used by the government or the agency managing these funds. The problems faced in managing social assistance funds accountable and transparently are at the neighborhood level (RT). Where not all RT administrators are able to provide financial reports on proper management of funds according to accounting principles. The purpose of this research is through this activity, to prove the effect of transparency, competence, internal control system, and organizational commitment. The method we use is the method of implementation in this socialization activity is lecture, question and answer and discussion. The participants in this service are the people in Rt. 34 Kelurahan Sambutan, Sambutan Subdistrict, Samarinda City was attended by 85 people and the result of this service was the administrators of Rt. 34 Kelurahan Sambatan Sambutan Sub-District Samarinda City has understood the concept of managing social assistance funds in an accountable and transparent manner and compiled the financial reports even better so as to increase the trust of the local community.
A Smart Home Architecture for Energy Conservation and Multiple Energy Source Management
Authors: Indra Kurniawan  , Irfan Dwiguna Sumitra
Published: August 2023

Smart home architecture has been widely applied in energy conservation efforts by improving control and monitoring of energy use. Energy conservation efforts can be made by controlling energy consumption and accommodating other energy sources that are environmentally friendly or renewable. Renewable energy sources can now be built quickly and affordably, for example, solar panels. This study aims to build a smart home architecture that prioritizes energy conservation and managing multiple energy sources. The method used in this research is applying the Fuzzy Multi-criteria Decision Making model and Artificial Neural Network embedded in the Single Board Computer and ESP8266 system with the Internet of Things concept. This research results in an intelligent hardware architecture and software system that can be controlled via a smartphone or PC for energy-saving efforts increasing awareness of energy use and managing multiple energy sources that are affordable and easy to implement at home.
Bayesian Network Design for Crude Palm Oil (CPO) Price Prediction Driven by Fluctuation Patterns and Trends
Authors: Masnida Hussin  , Zurita Ismail  , Iszuanie Syafidza Che Ilias
Published: August 2023

Crude Palm Oil (CPO) becomes the alternative to petroleum because it can be refined into different products, such as biodiesel. The price of crude palm oil can be considered the future direction of the world economy. CPO prices are based on market demand and the oil supply from the CPO producer, where they fluctuate and have a huge influence on economy. The price pattern of CPO requires a variety of factors to predict accurately. It needs a lot of data analytics to predict and respond in quick time to the highly variable CPO market. In this work, a dynamic probability model is proposed to predict CPO prices using the Bayesian rule. The rule is formed to be effective in responding to changeable market demands and supplies. It formulates the approximation factors for indicating the expected price of the CPO for 12 months. The dynamic training data has been modelled to fit the Bayesian rule. The process of Prediction and hypothesizing price fluctuations is identified according to several level of Bayesian rule. It is then used to generate a measure of deviation between the actual and probable prices. Our Bayesian-based prediction pricing model is able to predict the price pattern that are comparable to existing benchmark data and shows a lower standard error of regression. The prediction approach can help the traders have a better analysis of price fluctuations in CPO demand and supply. Using Bayesian probability not only improves prediction rules, but it can also forecast CPO trades in high fluctuation situations.
Preventive Maintenance: Some Operations and Technology Related Practices at a Malaysian Oil and Gas Firm
Authors: Md Safie Mohamed  , Halim Mad Lazim  , Wan Nadzri Osman
Published: August 2023

The effectiveness of a maintenance management system can be measured by the way a function has achieved its intended objectives and generally evaluated based on the quality of the product or service provided, from the perspective of the user. The issues of high casualties in terms of personnel, millions of dollars in losses due to the unexpected shutdown of operations, environmental threats and the impact on the country's income should be addressed. Malaysian Oil and Gas Firm’s maintenance system efficiency practices, technology availability, the selection of suppliers, the influence of preventive maintenance on company performance and the rationale for choosing PM for downstream activities were considered in the interest of the nation. The primary purpose of this study is to use a qualitative methodology to examine PM procedures at a Malaysian oil and gas firm. The oil and gas sector is commonly linked with high-risk, cutting-edge technology projects that can have devastating economic and ecological effects if anything goes wrong. The study utilized the semi-structured interview with 10 identified oil and gas maintenance management personnels such as Managers, Supervisors and Staffs who are attached to Maintenance Department as the ‘gatekeepers’ as they are the one who are directly involved directly in maintenance management activities as well as preparing the reports and data with regards oil and gas companies maintenance management system used for the study. The result from the study stated that the personnel involved in maintenance activities appreciate the practices utilized however with the new methods introduced, the study also proposed, appropriate maintenance implementation as well as the involvement of several parties in aspects of planning and formulating maintenance policy up to the implementation stage in the oil and gas operators’ operation. The study can provide significant implications for theoretical, methodology and management involvement in terms of preventive maintenance contribution to organizational performance. This study analysed the issue raised in the implementation of preventative maintenance, specifically in Turnaround Maintenance in oil and gas company.
Alternative and Online Assessment in the Context of Outcome Based Education: A Practical Guide
Authors: Rohana Sapawi  , Rafeah Wahi  , Azzahrah Anuar  , Nur Tahirah Razali  , Mohd Hafizan Hashim  , Ahmad Hata Rasit
Published: August 2023

Alternative assessment measures the learner’s ability and proficiency in performing complex tasks that are related to the intended learning outcomes and relies on direct measures of target skills in a specific knowledge or skill-domain. Meanwhile, online assessment is an assessment conducted in an online environment on a fully automated platform. Both types of assessments are getting a substantial attention worldwide due to their many advantages. However, several factors must be taken into consideration in implementing the alternative and online assessment in an outcome-based education (OBE) system. Thus, this paper provides a practical guide to alternative and online assessment in the context of OBE - including the constructive alignment, student learning time and development of assessment rubrics. Other considerations are also discussed, namely the validity and reliability of the alternative and online assessment, and deterring plagiarism and cheating.
Power Efficiency Analysis based on Lightning Effect on Large-Scale Solar Photovoltaic System
Authors: Nurul ‘Aini Mohamad Zakaria  , Mohd Najib Mohd Hussain  , Intan Rahayu Ibrahim  , Nor Salwa Damanhuri  , Nor Fadzilah Ahmad
Published: August 2023

Currently, a large-scale solar photovoltaic (LSSPV) has become one of the fastest developments of electrical generation power for Malaysian Renewable Energy. However, lightning strikes are common in Malaysia due to its geographical position and tropical climate, especially in the open space of large-scale site power plants. This paper discussed the scientific basis and key assumptions that should be included in the layout of a lightning protection scheme in a large-scale solar photovoltaic installation. The framework proposal aims to ensure compliance with standards and guidelines, mitigating the risk of significantly induced currents in the LSSPV power plant. A 2.5 MW solar PV farm system was modelled using MATLAB software for assessing a solar PV farm’s electrical performance under various lightning current waveforms and lightning magnitude currents. These lightning strikes will impact photovoltaic modules, thus deteriorating the system’s ratio generation. The effects of lightning current on LSSPV were accessed based on simulation work in MATLAB Simulink. The induced current protection scheme covered rating selection and collecting data on lightning that may hit the modules or arrays. This data was then analysed according to the standard guidelines to ascertain the most effective protection measures for the 50MW PV farm within the LSSPV system. Minimising the maintenance and replacement cost of equipment is possible. The performance of a 2.5MW solar PV power plant with a grid connection was evaluated. A maximum and minimum power output of 2.47MW and 522.50kW, respectively, were observed. However, when the lightning impulsive current is included through the system, the power output decrease to 407.33kW due to the high magnitude induced.
Performance of PAPR for Different Modulation Technique Using Cluster Scrambling Codeword Shifting Technique in F-OFDM Systems
Authors: Aidatul Julia  , Azlina Idris  , Nur Asfarina Idrus  , Kaharuddin Dimyati  , Murizah Kassim
Published: August 2023

Filtered-OFDM (F-OFDM) is one of the proposed 5G system candidates. In order to achieve service diversification, it must be able to support a large number of asynchronous subband transmissions. However, the transmitted signal in a multi-carrier transmission system with different subcarriers has a high peak-to-average power ratio (PAPR). Therefore, the main problem of F-OFDM systems is the high PAPR in the system, which leads to poor performance and excessive power consumption due to numerous distortions. This study introduces a technique based on codeword structure manipulation known as Cluster Scrambling Codeword (CSC) to achieve better reduction of PAPR with the evaluation of the performance of QAM and APSK modulation. This is a new formulation of the bit data sequence shifting approach that can reduce PAPR more effectively than the conventional scheme. Simulation results show that CSC with 256 QAM modulation scheme provides a PAPR reduction better than the conventional F-OFDM system.
Challenges During the Period of Movement Control Order (MCO) Against the Success of Software Development Project Management Deliverables
Authors: Surya Sumarni Hussein  , Fariq Abdullah  , Azhar Abd Aziz  , Nur Azaliah Abu Bakar  , Supratman Zakir  , Anitawati Lokman
Published: August 2023

Before it was declared a pandemic in March 2020, the Malaysian government was compelled to begin enforcing the MCO countrywide on 18 March 2020, and the World Health Organization classed the COVID-19 outbreak as a public health emergency. The MCO’s implementation significantly impacted the Malaysian economy, resulting in a 17.1% fall in GDP in the second quarter of 2020. Implementation of MCO during the Covid-19 pandemic has direct and indirect effects and implications on project management. This situation also may interfere with the project deliverables since project management is extremely sensitive to rapid changes. The issues that the project manager faces and how the software affects project deliverables have been examined in this study. From the standpoint of a software development project, the researcher will identify the challenges the IT project manager poses and their impact on project deliverables. In this study, we will evaluate whether implementing the MCO during the Covid-19 pandemic has given significant challenges to the IT Project Manager to successfully deliver the software development project. The literature review resulted in challenges; furthermore, the interview with three IT Managers of an ICT company in Malaysia discussed 18 challenges drawn from the analysis of the interviews. Hence, these findings of the innovative study area on software development have provided an enhanced judgment and interpretation on deciding mitigation strategies in the early stage of software development projects during the MCO.
IoT Monitoring System for Fig in Greenhouse Plantation
Authors: Mohd Firdaus Ibrahim  , Muammar Mohamad Isa  , Razaidi Hussin  , Syed Muhammad Mamduh Syed Zakaria  , Norhawati Ahmad  , Connie Kho Jen Yuan  , Aiman Firdaus Tan Abdullah
Published: August 2023

Fig is rich in nutrients and has a high market value due to its extensive application in promoting a nutritious food supply and supporting various medical disciplines. However, the equatorial climate in Malaysia poses significant difficulties for the large-scale cultivation of figs. Therefore, a Smart Monitoring System for controlled Greenhouse Plantation was proposed in this study to enable more efficient cultivation. The proposed system was equipped with LoRa and GSM to overcome the distance and data transmission limitations, developed using the Arduino Uno microcontroller. The proposed system consists of sensors to measure soil moisture, temperature, and humidity, while the data is transmitted using long-range LoRa communication to the control unit. The sensors circuit also has a solar power supply for convenient application in rural areas. The control unit is placed at a location with good data coverage. The system functioned well, and the monitoring parameter was accurately read, collected, and updated every 30 minutes. The optimal temperature, humidity, and soil moisture for growing fig is 22°C - 33°C, > 60%, and 50% - 60%, respectively. Real-time data monitoring enabled the sensors and control unit to achieve LoRa data transmission over a distance of 2.5 km. Any data exceeding the controlled parameters will trigger an alarm so that the user can perform corrective actions.
Development of Easy Match as a Teaching Aid for Students of the Integration Special Education Program (Learning Problems) in Form One Basic Cooking Subjects at SMK Telok Gadong, Klang
Authors: Ummu Sohaeir  , Mohamed Nor Azhari Azman  , Hasrul Hosshan  , Mohd Syaubari Othman  , David Evans
Published: August 2023

Teaching Aids using the Word Wall website have their differences in that teaching aid can provide fun learning to students. Nowadays, learning using ICT and technology is a learning that needs to be taken seriously so that education in Malaysia is comparable to that of education in other developed countries. The purpose of this study was to develop a teaching aid for students with learning difficulties in Basic Cooking subjects. Basic Cooking Subject is a Vocational Skills Basic Document according to the Standard Curriculum of Sekolah Menengah Pendidikan Khas (KSSMPK) implemented at SMK Telok Gadong, Klang, Selangor. The development of Easy Match was developed to overcome the problems faced by students with special needs, especially for students with learning difficulties. This study used a qualitative study design using interview instruments by selecting three experts as respondents. As a result of the interview, it is analyzed using the content analysis method. The data findings showed that all respondents agreed that Easy Match is suitable as a Teaching aid as well as to solve some of the problems faced by the students. special needs (learning problems). However, there are also several suggestions for improvements to be made in order to make the development of Easy Match a product that can be used effectively in the future.
LULC geospatial OLI/Landsat -7 -8 -9 analysis of Sitakunda Container Depot: MLE and Kappa accuracy for Coastal Urban Sprawl and Infrastructure Change
Authors: Polverino Salvatore , Coppola Antonio
Published: August 2023

The extent of this research aims to demonstrate a Land Use/Land Cover (LULC) change over a coastal-industrial area of Sitakunda, part of Chittagong region in Bangladesh. Its reference information has included important drivers for this industrial area of 4.00 km2, that highlight its suburban growth that uncontrollably has disaggregated the rural landscape, in a period ranging from 2009 to 2022.  Our geospatial analysis has started with the observation of the BM Container Warehouse, that has been recently interested by a dreadful fire.
A Manual for Reducing Heat in Jeddah’s Urban Parks to Enhance Elderly’s Experience
Authors: AlQurashi Rafeef , Sabban Reem
Published: August 2023

This thesis focuses on improving urban parks to enhance elderly experience and offer a better quality of life. It analyzes both their physical and emotional needs and delves into ways to enhance their experience when visiting parks in Jeddah. The target users of this study were both the elderly, aged 65 and above, and their companions. Using both qualitative and quantitative methods, needed information was gathered from both groups. Statistics were analyzed and showed that heat was a common factor affecting the quality of experience for park visitors. To further investigate the issue and acquire better solutions, precedent studies were analyzed. The aim of this research is to fill an existing gap locally by researching the effects of high temperatures on park visitors, specifically the elderly, and ways to implement solutions through redesigning urban parks in the city of Jeddah. The changes proposed, following the 2030 vision will aid in enhancing the quality of life for citizens and encourage healthy living.
Towards an economic efficiency of the space of the public place Case of the public places of city of Biskra / Algeria
Authors: Abdelhakim HANAFI , Sayad Bouthaina , Alkama Djamel
Published: August 2023

The public place is not just a simple public outdoor space for the circulation and meeting of townspeople it is to create a set of psychological reactions and to grow the notion of urbanity. The use of the public place relates to the entire life cycle of townspeople. It concerns the practices and uses implemented by all parts in the public place. This communication seeks to find out how and by what means to optimize the economic efficiency of the public place space from its landside. That is to say, to account in the medium and long term for the land reserved and consecrated for public place in a city or town in general.Through this research, we will try to see the different possible forms of optimization relating to activities, land and the form of the public place, while looking for the appropriate form of optimization for the public place of the city of Biskra / Algeria, a city in a semi-arid zone.
The landscape and biophilic perspectives of the new city of Guelma Hdjar El Mangoub 1 1 Professor Dr. Fatima-Zahra DJOUAD, 2 Candidate.
Authors: DJOUAD Fatima-Zahra , Mebarki Aya
Published: August 2023

Biophilic design is a human-centered approach that seeks to strengthen our connection to natural processes within the urban space. The new city of Guelma: Hdjar EL Mangoub is characterized by breathtaking landscapes, beautiful mountains and strong vegetation. In this sense, it is a question of researching and showing the extent to which natural elements are taken into consideration in the development of this new city as essential elements of its urban design. The adopted methodology serves to define the key frameworks of urban design according to a biophilic approach. The results obtained show the presence of a biophilic design defined by the first experience of nature.
Urban Lived experience of Contemporary Iconic Architecture in the Kingdom of Bahrain
Authors: Suvarna Kavithasree , Allani Najla
Published: August 2023

Architecture, of all art forms, is bound to influence people's daily lives. The 20th century witnessed brisk urban developments. SKYSCRAPERS have become a new dialect of urbanism, tied to the ideologies of tall buildings, generating a so-called ‘ICON” that stands tall and twisted several times, backed with design principles. This study documents the procedure of conducting a pilot research for a questionnaire-based investigation and fieldwork observation, examining the perception and sensory experience of the people living among the extraordinary superstructure, ‘THE BAHRAIN WORLD TRADE CENTER’ and the factors that leave an impression on their minds and impact their bodily experience, addressing the grandeur, the scale, the place where its located, and the technology or materials that have been used.
Lighting design for public spaces using innovative luminescent technologies
Authors: Spennato Alessandro
Published: August 2023

For several years, urban lighting has been regarded as a functional tool that can only guarantee safety and orientation for citizens. In addition to safety and light pollution, a phenomenon that has been at the centre of numerous debates for several years now, there is everything to do with saving energy and reducing the costs of urban lighting. Reducing even some of the considerable consumption of energy resources would benefit both economically and ecologically. Research led to the identification of space in the Abruzzo region. After analysing the park's current state, the question was asked: how can the garden be redeveloped by paying attention to ecological aspects and new technologies? The project aims to intervene in specific areas of the park to redevelop the context under analysis through new technologies, stimulating a new awareness of the lighting culture of spaces.
Change From A Residential Area To A Tourist Area: Eskisehir-Odunpazari
Authors: Büyüktaş Özlem , Kandemir Özlem
Published: August 2023

Due to the neoliberal economy, which is characterized by the dominance of the private sector and the provision of various opportunities for private capital, the regulation of existing spaces and their ownership is based on free market conditions. The growing influence of neoliberalism has led to the implementation of policies that aim to strengthen the competitive urban environment, with strategic planning of cultural activities. As a result, cities strive to compete in the global market by leveraging their cultural assets to support their economic infrastructure. This is often achieved through various practices, including the construction of iconic structures that enhance the visibility of cities within the neoliberal system and bring economic benefits, as well as the gentrification of urban areas . The desire of Odunpazarı to gain recognition and visibility, influenced by economic policies such as competition and branding, has resulted in its transformation from a residential area into a tourist destination featuring museums, cafes, and accommodation options like the Balmumu Museum (2012) and Kent Belleği Museum (2012). This analysis will be supported by a review of relevant literature, aiming to assess the current situation.
Reading Landscape Designs Through Spatial Triad Theory: The Case of High Line
Authors: Ergan Merve Feyza , Gormus Sevgi
Published: August 2023

Landscape architects should benefit from spatial theories in social sciences in order to understand the reflections of their designs on space production processes. Lefebvre's theory of space provides an important basis for research in the social sciences. According to H. Lefebvre, the triad of perceived, designed and lived space is based on three interrelated dimensions of space: spatial practice, representational spaces and representations of space. Spaces produced with these three dimensions are social products. In this study, the relationship between spatialization and social transformation is analyzed within the scope of critical analysis through the High Line Park, one of the globally famous landscape designs of the spatial triad theory. Knowledge about the ways in which the process of spatialization affects social transformation makes it easier to understand the role of designers in the discipline of landscape design. The engagement of designers in this process, whether consciously or unconsciously, can lead to an increase in the pressure of design practices on spatial practices. In this context, design practices need to focus on place rather than neoliberal discourses and analyze in depth how the dynamism between the spatial triad can develop.
IMPACT OF LULUCF ACCOUNTING RULES FOR CLIMATE CHANGE MITIGATION GOALS: WINNING OR LOSING?
Authors: Kazanavičiūtė Vaiva , Dagiliūtė Renata
Published: August 2023

Land use, land-use change, and forestry (LULUCF) sector plays an important role in climate change mitigation as long-term goal of carbon neutral economy depends on sector’s ability to sequestrate carbon in biomass and soil. With reference to the Paris Agreement, accounting rules for LULUCF sector have been heavily discussed in European Union (EU), seeking of trustworthy inclusion of the sector in the assessment of Union’s greenhouse gas (GHG) emission reduction target. Therefore, the paper aims to analyze LULUCF sector’s contribution to climate change mitigation with different accounting rules applied in EU countries and particularly in Lithuania. On EU level LULUCF sector’s absorption in 2019 has equaled around –234 million t CO2 eq. (6% of total EU GHG emissions), in some countries reaching more than a half of national emissions. However, different accounting rules applied may provide significantly different number of potential credits for separate EU countries, creating some “winners” and “losers” situation. Though inclusion of LULUCF sector into GHG’s emissions reduction targets remains discussible, some stability in rules is one of the main preconditions for proper LULUCF sector management decisions.
Young Stellar Object Candidates in IC 417
Authors: Rebull L. M. , Anderson R. L. , Hall G. , Kirkpatrick J. D. , Koenig X. , Odden C. E. , Rodriguez B. , Sanchez R. , Senson B. , Urbanowski V. , Austin M. , Blood K. , Kerman E. , Long J. , Roosa N.
Published: August 2023

IC 417 is in the Galactic plane, and likely part of the Aur OB2 association; it is ∼2 kpc away. Stock 8 is one of the densest cluster constituents; off of it to the east, there is a “nebulous stream” (NS) that is dramatic in the infrared (IR). We have assembled a list of literature-identified young stellar objects (YSOs), new candidate YSOs from the NS, and new candidate YSOs from IR excesses. We vetted this list via inspection of the images, spectral energy distributions (SEDs), and color–color/color–magnitude diagrams. We placed the 710 surviving YSOs and candidate YSOs in ranked bins, nearly two-thirds of which have more than 20 points defining their SEDs. The lowest-ranked bins include stars that are confused, or likely carbon stars. There are 503 in the higher-ranked bins; half are SED Class III, and ∼40% are SED Class II. Our results agree with the literature in that we find that the NS and Stock 8 are at about the same distance from Earth (as are the rest of the YSOs), and that the NS is the youngest region, with Stock 8 being a little older. We do not find any evidence for an age spread within the NS, consistent with the idea that the star formation trigger came from the north. We do not find that the other literature-identified clusters here are as young as either the NS or Stock 8; at best, they are older than Stock 8, and they may not all be legitimate clusters.
Fine Structures of Radio Bursts from Flare Star AD Leo with FAST Observations
Authors: Zhang Jiale , Tian Hui , Zarka Philippe , Louis Corentin K. , Lu Hongpeng , Gao Dongyang , Sun Xiaohui , Yu Sijie , Chen Bin , Cheng Xin , Wang Ke
Published: August 2023

Radio bursts from nearby active M-dwarfs have been frequently reported and extensively studied in solar or planetary paradigms. Whereas, their substructures or fine structures remain rarely explored despite their potential significance in diagnosing the plasma and magnetic field properties of the star. Such studies in the past have been limited by the sensitivity of radio telescopes. Here we report the inspiring results from the high time-resolution observations of a known flare star AD Leo with the Five-hundred-meter Aperture Spherical radio Telescope. We detected many radio bursts in the 2 days of observations with fine structures in the form of numerous millisecond-scale sub-bursts. Sub-bursts on the first day display stripe-like shapes with nearly uniform frequency drift rates, which are possibly stellar analogs to Jovian S-bursts. Sub-bursts on the second day, however, reveal a different blob-like shape with random occurrence patterns and are akin to solar radio spikes. The new observational results suggest that the intense emission from AD Leo is driven by electron cyclotron maser instability, which may be related to stellar flares or interactions with a planetary companion.
Orbital Period Variations in HT Cas: Evidence for Additional Angular Momentum Loss and a High-eccentricity Giant Planet
Authors: Han Z.-T , Qian S.-B , Han Q.-W , Zang L. , Soonthornthum B. , Li L.-J , Zhu L.-Y. , Liu W. , Fernández Lajús E. , Dai Z.-B , Na W.-W
Published: August 2023

We present a timing study of the short-period eclipsing cataclysmic variable (CV) HT Cas. Based on new eclipse times derived from our photometric monitoring and archival optical data, combined with historical timings, spanning ∼42 yr, we detect a secular decrease in the orbital period at a rate of

P

̇

=
−
1.32
×

10

−
12

ss

−
1

and a cyclic period wiggle with an amplitude of 79.3 s and a period of 30.28 yr. We find that neither gravitational radiation nor magnetic braking can explain the observed decrease rate, suggesting the presence of additional angular momentum loss (AML). The empirical consequential AML (eCAML) model developed by Schreiber et al. can well match the observed orbital decay in HT Cas, and the physical mechanism for eCAML is most likely attributable to the frictional AML following nova eruptions. As for the cyclic variation, the best explanation is the influence of an unseen companion in orbit around the binary. The derived orbital parameters reveal that the hypothetical third body could be a giant planet with mass of M
3 ≃ 14M
Jup that is moving on a highly eccentric orbit (e = 0.82). Taken together the results of the present study suggest that HT Cas is a unique triple system containing a high-eccentricity giant planet and it has the potential to become an ideal laboratory in which to test models of CV evolution.
On Secular Gravitational Instability in Vertically Stratified Disks
Authors: Tominaga Ryosuke T. , Inutsuka Shu-ichiro , Takahashi Sanemichi Z.
Published: August 2023

Secular gravitational instability (GI) is one promising mechanism for explaining planetesimal formation. Previous studies of secular GI utilized a razor-thin disk model and derived the growth condition in terms of vertically integrated physical values such as dust-to-gas surface density ratio. However, in weakly turbulent disks where secular GI can operate, a dust disk can be orders of magnitude thinner than a gas disk, and analyses treating the vertical structures are necessary to clarify the interplay of the midplane dust motion and the upper gas motion. In this work, we perform vertically global linear analyses of secular GI with a vertical domain size of a few gas scale heights. We find that dust grains accumulate radially around the midplane while gas circulates over the whole vertical region. We obtain well-converged growth rates when the outer gas boundary is above two gas scale heights. The growth rates are underestimated if we assume the upper gas to be steady and regard it just as the source of external pressure to the dusty lower layer. Therefore, treating the upper gas motion is important even when the dust disk is much thinner than the gas disk. Conducting a parameter survey, we represent the growth condition in terms of the Toomre Q value for dust and dust-to-gas surface density ratio. The critical dust disk mass for secular GI is ∼10−4
M
* for a dust-to-gas surface density ratio of 0.01, a Stokes number of 0.1, and a radial dust diffusivity of 10−4
c
s
H, where c
s is the gas sound speed, and H is the gas scale height.
First Results from the JWST Early Release Science Program Q3D: The Warm Ionized Gas Outflow in z ∼ 1.6 Quasar XID 2028 and Its Impact on the Host Galaxy
Authors: Veilleux Sylvain , Liu Weizhe , Vayner Andrey , Wylezalek Dominika , Rupke David S. N. , Zakamska Nadia L. , Ishikawa Yuzo , Bertemes Caroline , Barrera-Ballesteros Jorge K. , Chen Hsiao-Wen , Diachenko Nadiia , Goulding Andy D. , Greene Jenny E. , Hainline Kevin N. , Hamann Fred , Heckman Timothy , Johnson Sean D. , Grace Lim Hui Xian , Lutz Dieter , Lützgendorf Nora , Mainieri Vincenzo , Maiolino Roberto , McCrory Ryan , Murphree Grey , Nesvadba Nicole P. H. , Ogle Patrick , Sankar Swetha , Sturm Eckhard , Whitesell Lillian
Published: August 2023

Quasar feedback may regulate the growth of supermassive black holes, quench coeval star formation, and impact galaxy morphology and the circumgalactic medium. However, direct evidence for quasar feedback in action at the epoch of peak black hole accretion at z ≈ 2 remains elusive. A good case in point is the z = 1.6 quasar WISEA J100211.29+013706.7 (XID 2028), where past analyses of the same ground-based data have come to different conclusions. Here, we revisit this object with the integral-field unit of the Near Infrared Spectrograph on board the JWST as part of Early Release Science program Q3D. The excellent angular resolution and sensitivity of the JWST data reveal new morphological and kinematic substructures in the outflowing gas plume. An analysis of the emission-line ratios indicates that photoionization by the central quasar dominates the ionization state of the gas with no obvious sign for a major contribution from hot young stars anywhere in the host galaxy. The rest-frame near-UV emission aligned along the wide-angle cone of outflowing gas is interpreted as a scattering cone. The outflow has cleared a channel in the dusty host galaxy, through which some of the quasar ionizing radiation is able to escape and heat the surrounding interstellar and circumgalactic media. Although the warm ionized outflow is not powerful enough to impact the host galaxy via mechanical feedback, radiative feedback by the active galactic nucleus, aided by the outflow, may help to explain the unusually small molecular gas mass fraction in the galaxy host.
Systematic Multiepoch Monitoring of LkCa 15: Dynamic Dust Structures on Solar System Scales
Authors: Sallum Steph , Eisner Josh , Skemer Andy , Murray-Clay Ruth
Published: August 2023

We present the highest-angular-resolution infrared monitoring of LkCa 15, a young solar analog hosting a transition disk. This system has been the subject of a number of direct-imaging studies from the millimeter through the optical, which have revealed multiple protoplanetary disk rings as well as three orbiting protoplanet candidates detected in infrared continuum emission (one of which was simultaneously seen at Hα). We use high-angular-resolution infrared imaging from 2014 to 2020 to systematically monitor these infrared signals and determine their physical origin. We find that three self-luminous protoplanets cannot explain the positional evolution of the infrared sources since the longer time baseline images lack the coherent orbital motion that would be expected for companions. However, the data still strongly prefer a time-variable morphology that cannot be reproduced by static scattered-light disk models. The multiepoch observations suggest the presence of complex and dynamic substructures moving through the forward-scattering side of the disk at ∼20 au or quickly varying shadowing by closer-in material. We explore whether the previous Hα detection of one candidate would be inconsistent with this scenario and in the process develop an analytical signal-to-noise penalty for Hα excesses detected near forward-scattered light. Under these new noise considerations, the Hα detection is not strongly inconsistent with forward scattering, making the dynamic LkCa 15 disk a natural explanation for both the infrared and Hα data.
Abundances of Helium, Neon, Magnesium and Phosphorus in the Atmosphere of the Bp He-weak Star HD 175156
Authors: Monier Richard
Published: August 2023

The synthesis of two spectral intervals in the optical range allows to determine LTE abundances of helium, magnesium, phosphorus and neon for this evolved B subgiant. Compared to the solar abundances, helium, neon and phosphorus are found to be overabundant by a factor of 5, magnesium by a factor of 4. The helium line at 4471 Å recorded by two different instruments about ten years apart does not vary. Additional information on the abundances of other elements was also inferred: carbon, oxygen, aluminum, sulfur and iron have abundances very close to the solar values, in contrast nitrogen, titanium and xenon require mild overabundances.
The Behavior of Bp He-weak stars in the far-UV—Paper X: HD 49333
Authors: Monier Richard
Published: August 2023

The analysis of four spectra of the B7 He-weak Si star HD 49333 recorded by the SWP camera on board the International Ultraviolet Explorer reveals variations of the far-ultraviolet spectral energy distribution shortwards of 1700 Å over slightly more than 1 day, ie. about 46% of the rotational period. Several Si ii, Si iiiand Si ivvary consistently. Silicon must be distributed in a non uniform manner over the surface of HD 49333 so as to modulate the FUV flux over the rotational period. The profile of the resonance line of C iiat 1335 Å does not vary at these two rotational phases.
Hidden Companions to Intermediate-mass Stars. VIII. Discovery of a 0.6 M
⊙, 1.7 au Companion to Albali = ϵ Aquarii*
Authors: Waisberg Idel , Klein Ygal , Katz Boaz
Published: August 2023

A large portion of the visually brightest stars in the night sky are late B to early A-type stars yet our knowledge of their multiplicity is incomplete. Here we report the discovery of a companion to the nearby star Albali (HIP 102618 = ϵ Aquarii), based on a VLTI/GRAVITY interferometric observation. The companion is at a projected separation ρ = 26 mas ↔ 1.7 au and has a K band flux ratio of 0.7%. Through isochrone fitting we find that Albali A is a 400 Myr old 2.8M
⊙ subgiant that has recently evolved off the main sequence, while the newly discovered Albali B is a 0.6 M
⊙ K dwarf. Further astrometric monitoring is needed in order to assess how strongly the stars are expected to interact as the primary expands.
Mammal use of underpasses to cross Route 606 in Guacimal, Costa Rica
Authors: Terner Eleanor R.
Published: August 2023

Roads severely affect the health of ecosystems across the globe by fragmenting and diminishing habitats, reducing population connectivity, and increasing animal mortality. Wildlife underpasses allow for increased road permeability–the ability for animals to safely cross the road. Despite growing success in other regions, little is known about underpass usage in Central America. In this study, I monitored two dry circular culverts and two unfenced tunnels with barbed wire partially blocking their entrances on Route 606 in Guacimal, Costa Rica, from 14 November to 6 December 2021 using 15 camera traps to assess which species used them to cross. Twelve species used the culverts and tunnels for a total of 108 individual crossings. The tunnels were used, in descending order, by agouti (Dasyprocta punctata), common opossum (Didelphis marsupialis), dog (Canis familiaris), nine-banded armadillo (Dasyous novemcinctus), cat (Felis catus), Norway rat (Rattus norvegicus), ocelot (Leopardus pardalis), squirrel (Sciurus variegatoides), northern tamandua (Tamandua mexicana), and coati (Nasua narica). The circular tunnel, Tunnel 1, was used more frequently and by a greater diversity of species than observed in the square tunnel, Tunnel 2. The two smaller culverts were used by common opossum (Didelphis marsupialis), cat (Felis catus), rat opossum (Micoureus alstoni), and Watson’s climbing rat (Tylomus watsoni). Culvert 2 was used more frequently; however, Culvert 1 was used by a greater diversity of species. This study highlights wildlife underpasses as a critical strategy for biological conservation in Costa Rica through improved road safety and habitat connectivity.
Heroes Helping Heroes
Authors: Mushale Augustina
Published: August 2023

Veterans come from a unique culture that teaches soldiers to be tough, and being a member of the military can result in hidden barriers when veterans seek health care (Redmond et al.). This column describes how professional development specialists can teach nurses about veteran health care needs using lessons learned from civilian nurses' knowledge of the military culture (Mushale & Bakerjian).

[
J Contin Educ Nurs.
2023;54(8):347–349.]
Use of Design Thinking to Grow the Reach and Relevance of Evidence-Based Practice Education Across a Health Care System
Authors: Hinic Katherine , Kowalski Mildred Ortu
Published: August 2023

Evidence-based practice (EBP) skill building among clinical nurses is a priority for nurses in professional development because it is well known that this approach to clinical decision-making results in safe, cost-effective, person-centered care. Recent studies indicate widespread lack of self-reported competency in EBP skills among nurses, demonstrating the importance of prioritizing programs that meet clinical nurses' needs for EBP education. The goal of this design thinking project was to expand and diversify an EBP skill building program to provide more widespread accessibility across a multi-hospital health care system. The team followed the five-step human-centered design thinking process to empathize, define, ideate, prototype, and test an innovation. Based on end user feedback, a dual-track EBP educational program, with options for an intensive yearlong hybrid EBP Scholars program and a three-session skill building webinar series, was implemented. Design thinking provides a rich framework for incorporating end user feedback to generate innovations to address challenges in health care.

[
J Contin Educ Nurs.
2023;54(8):360–366.]
ICG fluorescence imaging technology in laparoscopic liver resection for primary liver cancer: A meta-analysis
Authors: Lu Pan , Zhang Wei , Chen Long , Li Wentao , Liu Xinyi
Published: August 2023

Objective

To study the value of ICG molecular fluorescence imaging in laparoscopic hepatectomy for PLC.

Methods

CNKI, WD, VIP.com, PM, CL and WOS databases were selected to search for literature on precise and traditional hepatectomy for the treatment of PLC.

Results

A total of 33 articles were used, including 3987 patients, 2102 in precision and 1885 in traditional. Meta showed that the operation time of precision was longer, while IBV, HS, PLFI, ALT, TBil, ALB, PCR, PROSIM, RMR and 1-year SR had advantages.

Conclusion

Hepatectomy with the concept of PS is a safe and effective method of PLC that can reduce the amount of IB, reduce surgery, reduce PC and improve prognosis and quality of life.
The Role and Place of Geopolitics in the Scientific System
Authors: Chitadze Nika
Published: August 2023

Geopolitics belongs to the group of social-geographical sciences and is a part of political geography. They distinguish between traditional, new (geo economics), and the latest (geo philosophy) geopolitics. Traditional geopolitics emphasizes the military-political power of the state and the dominant role of geographical factors in the conquest of foreign territories. The new (geo-economics) focuses on the economic power of the states in contrast to the traditional one. The latest geopolitics, in which spiritual power dominates military and economic power, helps states to overcome traditional and economic determinism at the expense of expanding the basic factors in determining behavior in international relations.
Understanding the “Balancing Act” of Turkey in the Russia-Ukraine War
Authors: Ertürk Ahmet Cemal
Published: August 2023

Since the beginning of the conflict, Turkey, as a regional powerhouse, has remained intact in its position as the “honest broker.” In a nutshell, Turkey has been trying to consolidate a balance between the resurgence of Russian aggressiveness and the Western aspirations to protect Ukraine at all costs. For so many in the West, Turkish actions were defined as even damaging at some point to the causes of NATO and the EU. Nevertheless, Turkey's role conception in this war is nothing new and rooted very well back to the earlier Republican experience with the Black Sea. In other words, Turkish foreign policy towards the Black Sea and Ukraine/Russia has always leaned toward a strategic behavior of balancing these significant powers. The latest act has been no different from a Turkish way of “sticking with the plan.” Therefore, deciphering the dynamics of this role is undoubtedly a must to undercover the geopolitical interest of Turkey from the region amid a fully-fledged war. This chapter proposes three related sections to understand and analyze the story's Turkish side.
Unmanned Aerial Vehicles (UAVs) in Modern Agriculture
Authors: Waqas Muhammad Mohsin , Ali Sikandar , Muthmainnah Muthmainnah , Rustam Muhammad Ahmad , Khang Alex
Published: August 2023

This chapter presents an overview of different types of drones, including fixed-wing, multi-rotor, and hybrid models, discussing their distinct capabilities and advantages for agricultural tasks, and highlighting their potential benefits in agriculture. The chapter then delves into the specific applications of drones in agriculture, focusing on crop health monitoring, soil surveying, water management, spraying, and pest control. It emphasizes the role of drones equipped with advanced sensors and imaging technologies in providing real-time data on crop conditions, enabling farmers to make informed decisions regarding irrigation, fertilization, and pest control strategies. Furthermore, the chapter examines the future prospects of drones in agriculture. It explores ongoing research and development efforts aimed at enhancing drone capabilities. The potential integration of artificial intelligence and machine learning algorithms for processing drone-collected data and generating actionable insights is discussed.
Computer Intelligence-Based Fruit Grading
Authors: Ratha Ashoka Kumar , Barpanda Nalini Kanta , Sethy Prabira Kumar , Behera Santi Kumari
Published: August 2023

India is the second-largest fruit producer in the world. But fruit identification, classification, and grading are carried out manually. Hence, most of the harvested fruit was wasted due to human perception subjectivity because there needed to be more qualified workers. Therefore, the fruit sector must impose an automated fruit detection system to distinguish among different types of fruits based on their variety, class, maturity, and intactness. With the right image processing concepts and machine learning approaches, it is possible to develop an automated system. With an emphasis on the advancement of state-of-the-art, this study provides a quick examination of the methodologies put out in the research publications from the last couple of years. Various methods are used to compare the relevant studies.