bluuebunny/crossref_metadata_2025 huggingface dataset:
Pemanfaatan Bahan Daur Ulang dalam Media Edukasi Anak
Authors: Fadilah Ahmad Arif
Published: January 2024

This research discusses the utilization of recycled materials as educational tools for children. The aim was to enhance children's creativity in learning by using discarded items, specifically cardboard, crafted into various artistic forms. Data collection involved observation, interviews, and documentation. The study found that employing recycled materials increased children's creativity in repurposing them into useful items or artworks. Emphasizing the active role of children in the learning process, the use of recycled materials as educational tools successfully improved their ability to generate new ideas and create useful items from discarded materials. For instance, crafting cardboard into an alphabet tree showcased children's creativity.
Diversity Management and Work Engagement of Academic Staff of Kyambogo University, Uganda
Authors:   Department of Education Policy and Planning, School of Education, Kyambogo University, Nanteza Resty , Mugizi Wilson ,   Department of Education Policy and Planning, School of Education, Kyambogo University, Irene Nagasha Judith ,   Depratment of Development Studies, Faculty of Arts and Humanities, Kyambogo University, Micheal Waiswa Mark ,   Department of Teacher Education, School of Education, Kyambogo University
Published: January 2024

This study examined the influence of diversity management and work engagement of the academic staff of Kyambogo University in Uganda. Specifically, the study examined the influence of diversity management policies, diversity management programmes and diversity management climate on the workplace engagement of academic staff of Kyambogo University in Uganda. The study employed the correlational research design, hence adopted the quantitative approach. The sample comprised 188 academic staff of Kyambogo University. Data was collected using a self-administered questionnaire. The data was analysed using descriptive and Partial Least Squares Structural Equation modelling (PL-SEM) using SmartPLS. Descriptive results revealed that the workplace engagement of academic staff, diversity management policies, diversity management programmes, and the diversity management climate of the university were moderate. SEM results showed that while diversity management policies had a positive and significant influence on workplace engagement, diversity management programmes had a positive but insignificant influence on workplace engagement, and the diversity management climate had a negative and insignificant influence on workplace engagement. Therefore, it was concluded that diversity management policies are vital for the workplace engagement of academic staff, inadequate diversity management programmes hinder workplace engagement, and a low-level diversity management climate impedes the workplace engagement of academic staff. Thus, it was recommended that universities should adopt diversity management policies, leaders of universities should implement adequate diversity management programmes to enhance workplace engagement, and leaders of universities should promote a climate that favours diversity.
KUR’ÂN’IN BÂTINİ (İÇSEL) VE ZAHİRÎ (DIŞSAL) ŞİFASI
Authors: Subaşı Muhammed Sadık
Published: January 2024

Müslüman toplumlarda Kur’ân aracılığıyla bedensel ve ruhsal hastalıklara şifa bulma anlayışı (özellikle halk arasında) her dönemde varlığını koruyan bir olgu olmuştur. Bu anlayış genel olarak Kur’ân-ı Kerîm’in şifa kaynağı olduğunu bildiren âyetlere ve konuyla ilgili rivayetlere dayandırılmaktadır. Genel kanaat, âyetler aracılığıyla tedavi yöntemlerinin uygulanabileceği yönünde olsa da ilk dönemlerden itibaren konuyla ilgili farklı yaklaşımlar da söz konusu olmuştur. Müfessirler, Kur’ân’ın şifa olduğunu bildiren âyetleri yorumlarken bedensel hastalıklardan ziyade inanç, bilgi ve davranışlarla ilgili olan mânevî hastalıklar üzerinde durmaktadır. Bu mânevî hastalıklar, birey ve toplumun huzurunu bozan bütün problemleri kapsamaktadır. Bu çalışmada Kur’ân’ın şifa olduğunu bildiren âyetlerin müfessirler tarafından nasıl yorumlandığı ve bu yorumların tasnifi üzerinde durulmaktadır. İlgili yorumlar, öncelikle içsel (bâtıni) ve dışsal (zahirî) olarak ikiye ayrılmıştır. Daha sonra içsel şifa; inanç-bilgi (itikat-ilim) ve duygusal (kalbî) ahlâk şeklinde; dışsal şifa ise ibâdât-muamelât ve davranışsal (amelî) ahlâk şeklinde tekrar ikiye ayrılmıştır. Bedensel hastalıklarla ilgili olan rukye, muska, nüşre gibi uygulamalar ve ilgili tartışmalar çalışmanın kapsamı dışında bırakılmıştır.
Environment as a Determinant Factor for Speech Style and Recognition: A Case of Swahili Language in Tanzania
Authors: Pembe Hilda
Published: January 2024

This study offers a fresh look at the impact of the environment in influencing speech styles, focusing on Swahili as a case study language. This study navigates beyond the usual concerns of speakers, topics, ages, and genders to explore how the environment we surround ourselves can impact our language habits in terms of how and what linguistic expressions we produce. The study is carried out using observation as a method of data collection in the city of Dar es Salaam, Tanzania, and includes a variety of settings such as restaurants, daladalas (public minivans), and mitumba marketplaces (second-hand clothing shops). The collected data was analyzed using the speech acts theory as a guiding framework to determine the various ways in which the environment influences speech. This paper serves high significance in the field by casting on the influence a social environment can have on our speech habits. By suggesting that environment can be a determinant of different speech styles and habits, the study opens up new dimensions to our knowledge of different dynamics that chiefly influence language use.
Constitutionalism in Indonesia: An Islamic Governance Legal Perspective
Authors: Hadi Fikri , Gandryani Farina , Muramuzi Innocent , Razzaq Tayyaba
Published: January 2024

Abstract: Islam is the most followed religion in Indonesia, making Indonesia contains the largest Muslim population of all countries in the world. However, Indonesia is not a religion state. This has become an issue in several Muslim groups in Indonesia, whether it is permissible to have a state under the Republic of Indonesia based on their beliefs.
Purpose: This paper will explain the relationship between Islam and The State of Indonesia and the study of Islamic government law related to the Indonesian government.
Design/Methodology/Approach: This research is qualitative. The approach used is statute, conceptual, and hermeneutics, while the assessment method used is comparative.
Findings: The system of government of Indonesia has a close relationship to the principles and substance of Islamic law. Although the State of Indonesia is not an Islamic state, Indonesia is also not a secular state, which separates religion and state. From the Islamic government law’s perspective, it’s called tamyiz or proportional. Indonesia takes Islam in the principles of state proportionally. Therefore, The State of Indonesia is not contrary to the principles of Islam.
Originality/value: Numerous studies have been undertaken to examine the correlation between religion and the government in Indonesia.   This article builds upon the earlier research conducted by other scholars.   This article affirms that the Indonesian State is not in conflict with Islam.
The Parliamentarian’s guide to protecting the Mediterranean Sea and coast: A handbook for members of parliaments serving in the Contracting Parties to the Barcelona Convention and its Protocols
Authors:   United Nations Environment Programme
Published: January 2024

Members of parliaments play a pivotal role in transposing Multilateral Environmental Agreements (MEAs) into enforceable national law. The Barcelona Convention and its Protocols are a case in point: how can a newly elected parliamentarian be expected to instantly find their way through a myriad of legally binding provisions, including Regional Action Plans, addressing everything from chemical pollution to green shipping and sustainable consumption and production? The Parliamentarian’s guide to protecting the Mediterranean Sea and coast (the Guide) is aimed at parliamentarians serving in the Mediterranean region and in the European Parliament—the EU being a Contracting Party— and at staff supporting them in discharging their duties. The Guide offers practical entry points to the UNEP/MAP-Barcelona Convention system and includes non-prescriptive recommendations on how to leverage the core functions of parliament, notably representation, lawmaking, and oversight (IPU and UNDP 2017), and associated mechanisms to bridge gaps in compliance. The outcome sought through this publication is a higher level of compliance and enforcement at the national level around the Mediterranean Sea.
Imposition of Criminal Sanctions on Corporations and/or Corporate Control Personnel Who Commit Money Laundering Crimes
Authors: Nurdin Boy , Asmoro Dwi
Published: January 2024

This research purpose is to describe law enforcement arrangements for corporations and/or corporate control personnel for money laundering crimes. The author uses a normative juridical approach, using primary and secondary data. Data analysis uses qualitative analysis. In Indonesia, legal regulations regarding the prevention and eradication of money laundering crimes were initially regulated in Law Number 15 of 2002 concerning the Crime of Money Laundering (UUTPPU) which was later revised into Law Number 25 of 2003 and subsequently revoked and replaced by Law- Law Number 8 of 2010 concerning Prevention and Eradication of the Crime of Money Laundering. The results show that perpetrators of money laundering crimes are subject to sanctions based on Articles 6, 7, 8, 9, and 10 of Law Number 8 of 2010 concerning Money Laundering Crimes. Apart from that, to anticipate the occurrence of money laundering criminal attempts in Indonesia by postponing transactions with assets suspected to originate from criminal acts. Blocking of assets known to originate from criminal acts, and Temporary suspension of transactions related to money laundering crimes.
Analysis of Affecting Variables Actual Inflation Rate at Indonesia
Authors: Chandra Andy , Taufik Kemal , Ratnasih Cicih
Published: January 2024

The discussion in this empirical study is to find out what variables can influence the achievement of the actual inflation rate variable in Indonesia in the last ten years. The writer considers that achieving the actual inflation rate targeted by a Central Bank is not simply related to supply and demand imbalances for primary goods alone, but more broadly than that related to dynamic micro and macroeconomic conditions. The writer initially suspected that variables such as the inflation target rate, previous inflation rate, loan interest rate, and gross domestic product had a significant influence on fluctuations in the actual inflation rate in Indonesia. After statistical tests were carried out using the secondary data in the form of the rates of the four independent variables and the actual inflation rate in Indonesia as the dependent variable every year for the last ten years it’s found that only the loan interest rate had a significant and positive effect on the actual inflation rate in Indonesia. which means that the higher the loan interest rate will also increase the actual inflation rate. The three other variables tested in this empirical study, namely the inflation target rate, the previous inflation rate, and the gross domestic product rate, did not have a significant effect.
Contributions to the Aphodiinae (Coleoptera-Scarabaeidae) fauna of the Eskişehir Bozdağ
Authors: GÜLMEZ Mehmet , ŞENYÜZ Yakup
Published: January 2024

Insects are amazing creatures used to determine the biodiversity of terrestrial ecosystems. It is well known that the order Coleoptera, which includes dung beetles, has a wide variety of species. Thus, depending on the three elevations of the Eskişehir Bozdağ region, the fauna of the subfamily Aphodiinae was studied in this study. As a result, this study included 14 species and 3 subspecies from 12 genera that are members of the Scarabaeidae subfamily Aphodiinae. The first records for the province of Eskişehir are Volinus sticticus (Panzer 1798), Esymus pusillus pusillus (Herbst, 1789), Nimbus johnsoni (Baraud, 1976), and Euorodalus paracoenosus (Balthasar & Hrubant 1960). Furthermore, three new species have been recorded for the Central Anatolia Region: Nimbus johnsoni (Baraud, 1976), Esymus pusillus pusillus (Herbst, 1789), and Volinus sticticus (Panzer, 1798).
Synthesis and characterization of b-site controlled la-based high entropy perovskite oxides
Authors: YILDIZ İlker
Published: January 2024

High entropy perovskite oxide materials are a highly promising class of materials with a wide range of potential applications. They offer a unique combination of perovskite oxides and high entropy oxides, making them suitable for various fields, particularly in electrochemical energy storage systems and hydrogen production. Given the growing demand for clean energy and efficient energy storage solutions, the development of high entropy materials holds great significance. In this study, a cost-effective and rapid fabrication method was employed to produce several single-phase high entropy perovskite oxides by altering the B-site cations. The results demonstrated that these high entropy perovskite oxides could be synthesized with the same crystal structure, despite having significantly different elemental compositions. These variations in elemental composition led to differences in lattice parameters, metal-oxygen bond strengths, and oxygen vacancy content within the materials. Understanding and manipulating these factors can have important implications for the design of high entropy materials for energy storage and other applications.
Ítaca en Cuba: el proyecto nacionalista e independentista de las asociaciones inmigrantes catalanas de La Habana (1911-1932)
Authors: Ruiz García Sergio
Published: January 2024

Este artículo, analiza las cuatro principales asociaciones catalanas de La Habana desde una perspectiva multifuncional: benéfico-asistencial, cultural, económica y, sobre todo, política. A partir de las primeras décadas del siglo XX, en estas asociaciones se impusieron las consideraciones de tipo político, dejando en un segundo plano el resto de objetivos. Unas defendieron un proyecto nacionalista, reclamando mayor autonomía para Cataluña, y otras, se posicionaron abiertamente en un nacionalismo radical que condujera a la independencia de España. Todas ellas conformaron un entramado asociativo complejo e interrelacionado con otras sociedades catalanas de diferentes partes de Cataluña y América. A partir de 1932, fueron perdiendo fuerza económica y política conllevando a la disolución de casi todas, hasta el punto de que una tras otra fueron desapareciendo.
Observed Changes of Köppen Climate Zones in Spain since 1951
Authors: Chazarra Bernabé Andrés , Lorenzo Mariño Belinda , Romero Fresneda Ramiro , Moreno García José Vicente Moreno García
Published: January 2024

Despite of having been originally formulated more than one hundred years ago, the Köppen classification is still nowadays the climate classification most widely used in climatological studies. Based on the empirical relationship between climate and vegetation, this climate classification provides an efficient and easy way to describe climate conditions and their seasonality by using a simple but ecologically meaningful classification scheme. This study examines the temporal evolution of the Köppen climate classification in Spain for the period 1951-2020, using high-resolution gridded datasets of monthly mean temperature and precipitation with 1 x 1 km spatial resolution. Climate classification maps for consecutive 30-year reference periods are compared, and the temporal evolution of each climate type in Spain is analysed, showing a progressive expansion of the arid climate zones and a contraction of the cold climate zones along the study period.
Construcción de la identidad profesional en la formación inicial de la orientación educativa
Authors: Blasco-Serrano Ana Cristina , García Goncet Daniel , Pérez-Castejón David
Published: January 2024

El modelo de orientación educativa ha sufrido una importante transformación como respuesta a las demandas educativas de la sociedad en favor de un paradigma más centrado en la persona y focalizado en la búsqueda de una mayor inclusión y justicia social. Sin embargo, pocos estudios profundizan en la formación inicial de quienes serán futuras y futuros profesionales de la orientación. Este trabajo pretende explorar cómo cambia la concepción del rol de la orientación educativa entre orientadores y orientadoras en formación. Para ello, se analiza cómo la formación inicial influye sobre la construcción de su identidad profesional y promoción de la educación inclusiva. La investigación, de naturaleza cualitativa, toma como muestra 102 estudiantes de la especialidad de Orientación Educativa del Máster de Profesorado de la Universidad de Zaragoza, pertenecientes a los cursos 2018-19, 2019-20, 2020-21 y 2021-22. Las técnicas de recogida de datos incluyeron observación participante, relatos de vida, grupos de discusión, entrevistas y cartografías. El análisis ha permitido identificar el giro percibido por los futuros y futuras orientadoras en su identidad profesional hacia un modelo orientador centrado en la inclusión y en la justicia social más que en el déficit. Asimismo, el alumnado señala la colaboración y la investigación como elementos que articulan los procesos de cambio y construcción de la identidad profesional. Emergen igualmente contradicciones y dilemas en el alumnado, debido a las limitaciones y las resistencias existentes entre los y las profesionales de la docencia y de la orientación educativa. Finalmente, se discuten las posibles implicaciones.
relación educativa: factor clave en la interacción tutorial (IT) en la educación superior
Authors: Pastor Andrés David , Gezuraga Amundarain Monike , Darretxe Urrutxi Leire
Published: January 2024

En las últimas décadas, entre otras razones, como adaptación a los postulados de la Declaración de Bolonia, viene dándose una adaptación de la Interacción Tutorial (IT) en la Educación Superior, pero ¿cuánto hay de avance en la misma? El trabajo que presentamos se encuadra en una tesis doctoral que ha abordado la IT en la Facultad Educación de Bilbao (Universidad del País Vasco/Euskal Herriko Unibertsitatea), concretamente, nos centramos en el estudio de la relación educativa que se establece entre profesorado y alumnado dentro de la IT, acercándonos a los elementos que la facilitan y la obstaculizan, de cara a aportar algunas ideas para la mejora. Nos hemos basado en una metodología cualitativa que nos ha permitido conocer en profundidad las razones de algunas percepciones, conductas, etc. dentro de este contexto de interacción. Los instrumentos para la recogida de información han sido: la entrevista en profundidad (3 con alumnado y 9 con profesorado) y el grupo de discusión (43 alumnas y alumnos). Entre los resultados encontrados, destacamos que: aunque la IT se extiende más allá del aula, la interacción que se establece en ésta la condiciona por completo; las y los participantes también nos hablan de algunas características deseables por parte del profesorado para que se dé una interacción y, por lo tanto, una IT de calidad, entre ellas nos encontramos: la empatía, la accesibilidad, la confianza, la sensibilidad, o la escucha activa.
Treatment of Municipal Wastewater Using Electrocoagulation Process
Authors: H Abhishek , H Vijayakumar , C L Mahesh Kumar , Kotagi Girisha Shwetha
Published: January 2024

Treatment of Municipal wastewater by Electrocoagulation (EC) process using punched aluminium and zinc electrodes was studied in a batch EC cell reactor. Response surface methodology (RSM) based on Central Composite Design (CCD) was utilized to optimize the operating parameters for the removal of % Total Suspended Solids (TSS) and % Chemical Oxygen Demand (COD) from Municipal Sewage. Effect of operating parameters such as Electrode Distance (x1), Electrolysis Time (x2) and Voltage (x3) has been optimized for the removal of TSS and COD. The prediction of removal percentage of TSS and COD in various Operational circumstances is done by using Quadratic model. The significance of each operating parameter was computed by Analysis of variance (ANOVA). To achieve the maximum removal of % TSS and % COD, the optimum conditions were Electrode distance(x1)—3 cm, Electrolysis Time (x2)—70.299 minute and Voltage (x3)—6.5V. It was observed that the performance of electrocoagulation process increased up to 61.45% for COD removal, and 73.73% for TSS removal using punched electrode compared to plane electrodes.
Acoustic Quality of Volcanic Rock Material for Interior Space Control and Design: Evidence from Teaching Space
Authors:   Faculty of Humanities and Arts, Macau University of Science and Technology, Macao, China, Zhang Wei , Zhang XiZhi ,   Faculty of Humanities and Arts, Macau University of Science and Technology, Macao, China, Wen Kuo-Hsun ,   School of Design, Fujian University of Technology, Fujian, China
Published: January 2024

The cognition of a good campus environment refers to the physical environment formed by planning and design, considering the function, reasonable layout and atmosphere of the space, and putting forward an implementation plan that can meet or exceed the teaching, learning and life needs of teachers and students, so that the campus has perfect overall characteristics. This paper takes university lecture halls as the research object, studies the spatial sound requirements and tests the acoustic quality control of these spaces, and attempts to explore the feasibility of using volcanic rocks as wall decoration materials. According to the characteristics and principles of sound transmission, combined with the present situation of the lecture hall and its original acoustic environment, a series of acoustic field experiments are implemented. By means of computer software simulation, the advantages of volcanic rock as wall decoration material in sound absorption effect and quality control are proved, and also its effect is better than other materials. Obviously, the computer simulation software is an applicable way in assisting the selection of interior wall decorative materials. Therefore, this study confirms the sound quality characteristics of volcanic rock materials and provides a feasible reference for those spaces requiring acoustic quality control in the future.
U.S. Flag Group Owned Superyachts; A New Market for Designers, Shipyards and Ship Managers
Authors: Barry Christopher D. , Kamen Paul , Hugenot Alan
Published: January 2024

The market for superyachts has been growing at rates above 15% for several years (Beckett, 2007) and has represented a significant large powerboat market. One growth area in this market is vessels designed for group ownership, because as the individual cost of ownership decreases, people with less wealth are brought into the market. Since wealth follows a power curve, a five fold decrease in ownership cost represents far more than a five fold increase in potential owners. However, group ownership requires significant changes in the paradigm of use, design and management, including significantly more use in U.S. waters, meaning U.S. flagging and inspection becomes more advantageous (in part due to reduction in tax benefits of offshore flagging). Therefore group-owned U.S. flag superyachts potentially represent an opportunity for designers, management companies and builders, but have significant regulatory constraints on design and operation that have to be considered.
Re-Powering for Fuel Economy and Performance – Methods for Engine and Propeller Selection
Authors: DeBord Frank W.
Published: January 2024

In the past several years, higher fuel prices combined with availability of modern, light-weight diesel engines has made diesel re-powering of older gasoline boats increasingly attractive. However, the differences in performance characteristics between diesel and gasoline engines, combined with the relatively limited knowledge of most boatyards and engine distributors with respect to performance prediction, can make the selection of engines and appropriate propellers difficult at best. Using an actual example of re-powering a 1977 Bertram 33 Convertible, this paper discusses a range of performance prediction methods for engine and propeller selection. These methods range in complexity from simple spreadsheet calculations based on known speed versus RPM with the “old” engines, to a variety of rigorous calculations based on empirical and computational methods. These methods would be suitable for a variety of situations ranging from simple calculations by an owner completing a preliminary cost trade-off, to detailed engineering calculations more suited for a large, expensive project where performance must be accurately predicted. Results of each method are compared to actual trials data and recommendations are offered for application of the prediction methods to projects with varying complexity and objectives. In addition, practical and engineering issues that must be addressed when completing a re powering are discussed.
Stray Current Electrolytic Corrosion: An Unrecognized Enemy
Authors: Bugenot Alan
Published: January 2024

This paper examines the state of the art regarding Electrolytic Corrosion which is often mis-named as electrolysis. This corrosion of underwater metals is understood to be caused by stray currents passing through the water surrounding a vessel regardless of source. Such current flow causes corrosion (ion loss) of any immersed metals which happen to serve as the grounding conductor for any stray electrical currents.

Normally, with Direct Current (DC) stray currents the ion loss at the metallic receptor (anode) is continuous, but because the majority of DC stray currents are of galvanic origin they occur at extremely low amperages (measured in milli-amps). Consequently, cumulative ion loss is slow and a long time passes before deterioration may be noticeable.

To protect underwater metals against galvanic DC corrosion, cathodic protection techniques utilizing sacrificial zinc anodes were developed during the first half of the 20th century, at a time when nearly all small boats either had no onboard circuitry or only had 12 volt DC electrical systems.
Prototype of a Small High-Efficiency Cruising Motor Yacht Design
Authors: Jolley Eric
Published: January 2024

A fuel-efficient cruising boat is desirable today for many reasons. I asked friend and colleague Paul Bieker for help designing such a boat in 1998. We felt strongly that there was a need for a Jess-is-more approach to a power boat, in contrast to the ever-increasing speed. weight. complexity and horsepower commonly encountered in the market.

Personal experiences with an Ultimate 30 high­performance sailing skiff that Paul converted to a power boat contributed to ideas for the light-weight cruising boat design. Refinement of the design eventually culminated in die building of a 25-foot (7 .6 m) light-weight high ­efficiency cruiser prototype. The 25-foot prototype is trailer-able, outboard powered, has a floodable ballast tank and uses building methods and materials more commonly found in high-performance racing sailboats.

Launched in fall 2006, the prototype hit the target design weight, floats on its lines, and meets the desired cruising speed and top speed. Fuel consumption is low for a picnic-boat type design of this size. Setting a moderate top speed of twenty knots and making weight reduction paramount resulted in a positive design spiral where less horsepower, less fuel and less structure was required to achieve the desired performance.

It remains to be seen whether the economics of using light-weight composites are viable for a production boat of this size and type; the extra cost would pay for a lot of fuel. If the 'external costs' of high fuel consumption are considered however, the case can easily be made.
Research Plan for the Investigation of Injury and Fatigue Criteria for High Performance Craft
Authors: Schleicher Dean M.
Published: January 2024

Recently developed injury and fatigue criteria hold the promise of providing high performance craft with improved safety characteristics while operating in a seaway. The ISO 2631 Part 5 daily equivalent static compression stress dose to the spine, normalized to an exposure dose of 8 hours or “Sed(8)” criteria has been proposed and accepted as an injury model. Epidemiology is currently being gathered using the CACTUs II system as described in [Petersen at al 2008] which should correlate Sed(8) measurements with long term injury reports. Impact Count Index or “ICI” has been proposed as a potential metric for motion induced fatigue. Limited testing and measurement has been performed which has led to proposed criteria for minimizing motion induced fatigue. These criteria can be used to evaluate existing high performance craft through full scale trials. However, significant work is needed to quickly assess early design decisions with regard to these criteria. Fundamental craft characteristics are decided early in the design process. The ramifications of these decisions with respect to these criteria are not clearly understood. The effect of the operational environment on the performance of a given craft with regard to these criteria is also not clearly understood. Thus, in order to truly protect operators of high speed craft in a variety of sea states and operational conditions, further understanding of the response of a given design to a wide variety of sea conditions is needed. The primary objective of this paper is to focus attention on this design problem, describe these criteria and present a long-range research plan that will lead to the definition of operability envelopes in a seaway for high performance craft.
Dr. Daniel Savitsky
Authors: Hoyt John G.
Published: January 2024

Dr. Daniel Savitsky, Professor Emeritus Stevens Institute of Technology, has been a leader in the field of high-speed marine vehicle hydrodynamics for 70 years. His landmark paper, "Hydrodynamic Design of Planing Hulls", published in the very first (1964) edition of the Society of Naval Architects and Marine Engineers Marine Technology, is well known to all in the field. An in-depth look at his life and career beyond this singular contribution will be shared in honor of his many contributions to his family, colleagues, students and friends.

Dan Savitsky began his career as a student at the College of the City of New York, graduating in 1942 to work for the EDO Corporation at College Point, New York. Here at EDO, his love for the planing surface was born with his involvement in the development of seaplane floats during the war. After being drafted into the Army of the United States, he was assigned to the National Advisory Committee for Aeronautics’ Langley Laboratory in 1944, where he advanced his knowledge not only of planing surfaces, but an important future skill, model testing.

His next and current home was Stevens Institute’s Davidson Laboratory, where he obtained a Masters degree in 1952 and up the ranks from project engineer to Director of the Laboratory. He later obtained his Doctorate from New York University in 1972, and mentored untold scores of students. He achieved many honors during this time such as the SNAME Cochrane and Davidson awards and the Stevens Jess Davis award. These awards were earned through scientific contributions passed on to us in numerous papers and presentations, as well as through his active participation in professional organizations such as SNAME, ASME, ATTC, ITTC and many more.

There are numerous accounts of his kindness and concern as well as scholarly advice to laymen, students and professionals alike. An attempt is made here to present Dr Savitsky’s many contributions, not just a tabulation of his technical achievements, but to include his influence on the many who have worked with or were taught by him.
US Coast Guard Response Boat-Medium (RB-M)
Authors: Shepard David M. , Curtis Jeffrey M.
Published: January 2024

The U.S. Coast Guard’s 45 ft. Response Boat – Medium (RB-M) will replace the Coast Guard’s fleet of 41 ft. Utility Boats that have been in service for more than 30 years. Used for a wide range of missions including Search and Rescue (SAR) and Ports, Waterways and Coastal Security (PWCS), the RB-M provides vastly improved capabilities including increasing speed from 26 knots to over 42 knots, improved seakeeping, self-righting stability, and enhanced crew accommodations. The RB-M acquisition, from the initial requirements development through full production, is addressed along with the RBM’s characteristics and capabilities.
Recent Advances in Radio Controlled Model Testing
Authors: Deakin Barry , Buckland Dickon
Published: January 2024

Self propelled models under radio control have been used for many years to assess the manoeuvring and handling of ships, and occasionally small craft. The limitations for testing small, fast craft have been linked to the low model weight required and the ability to install enough power, as well as the cost of modelling.

Recent advances in motor and battery technology, the availability of model water jet drives, and developments in small data logging and GPS systems have enabled cost effective modelling of very fast craft. Their handling characteristics can now be assessed accurately at an early stage of the design. This helps to ensure a successful boat, determine the acceptable boundaries of the design, or modify it to eliminate any problems found.
Development of a Method for Computing Wave-Impact Equivalent Static Accelerations for Use in Planing Craft Hull Design
Authors: Riley Michael R. , Coats Timothy W.
Published: January 2024

Figure 1 illustrates the exhilarating experience of riding high-speed planing craft in waves. Riders experience motions in six degrees of freedom including heave, surge, and sway plus the rotations about the three principle axes. The challenge for the developers of current craft hull design methods was to analyze these complicated motions to understand the fundamental cause and effect relationships between wave impact loads and craft response motions. They then had to synthesize lessons learned with simplifying assumptions to make tractable an otherwise seemingly unsolvable problem: what pressure values to use in design calculations to minimize the risk of structural damage. This paper summarizes recent developments that are generally applicable to planing craft that weigh up to approximately 46,000 pounds with overall lengths 55 feet or less. Typical average planing speeds for these craft can vary from 25 knots to 40 knots or more in head seas characterized by significant wave heights typically in the range of 2.0 feet to 5.5 feet.
On Application of Parametric Method for Design of Planing Craft
Authors: Nazarov Albert
Published: January 2024

Paper describes features of parametric method based on combined analysis of main dimensions and volumes, weight components, performance and range predictions, seakeeping and construction cost of planing craft. Method is derived from statistics of designs of special, pleasure and small commercial monohull craft with hull length below 30m, developed by Albatross Marine Design. Dimensions of hull are defined from usable areas and essential volumes, with recommendations provided for different architectural types of boats. Equations are proposed for weight groups based on hull dimensions, horsepower, type of propulsion system, level of accommodations and furnishing, required payload, etc. Approaches for preliminary estimate of powering, range, fuel efficiency, ride stability are provided. Method proved to be efficient tool for design analysis, optimization and feasibility check of design requirements. Case studies are presented illustrating application of parametric approach for different designs.
Fatigue Life Analysis of the US Coast Guard’s 47 Motor Life Boat
Authors: Wickenheiser Vincent , Stambaugh Karl
Published: January 2024

The Surface Forces Logistics Center’s Naval Architecture Section was tasked to review the operational history and conditions of the US Coast Guard’s 47 MLBs and determine if they will have sufficient remaining hull structural fatigue life to extend their service life to 50 years as part of a business case analysis. In this process, a fatigue analysis approach was developed to provide guidance to support a feasibility level decision.

Fatigue analysis of small craft is not common and the Naval Architecture Section developed a relatively quick and easy method for performing the analysis. The analysis utilized regional wave buoy information, operation profiles, operating hours from Coast Guard databases, ABS and Savitsky methods for predicting pressure and slamming loads, and simple finite element models to predict the structural response. An approach is presented to infer long term loading history using the statistical relationships of the Rayleigh statistics and operational wave conditions.

In this analysis, the boats were categorized into three different operating regions, East Coast, West Coast, and Great Lakes based on differences in wave environment and further subdivided based on a number of annual operating hours. Results of the analysis indicate that the 47 MLBs will have a fatigue life of over 25 years from delivery; however, approximately one third of the 47 MLBs will develop fatigue cracks before 50 years of service based on current utilization rates.

Recommendations are provided to evenly distributing the hours of operation within districts and by home port rotations between different regions on a 10 to 15 year rotation cycle. If fully implemented by the operators and maintainers, this approach would extend the hull structure service life of all of the 47 MLBs to 50 years without requiring structural modifications.
Die Qual der Wahlprüfung
Authors: Wawzyniak Halina
Published: January 2024

Es lohnt sich, die Entscheidung des Bundesverfassungsgerichts zur Teilwahlwiederholung in Berlin genauer anzuschauen. Nicht nur, weil sie deutliche Absetzbewegungen zur Entscheidung des VerfGH Berlin aufweist, sondern auch weil sie im Hinblick auf Wahlfehler und Mandatsrelevanz einige spannende rechtsdogmatische Fragen aufwirft und in einigen Teilen widersprüchlich und nicht überzeugend ist. Für den Gesetzgeber ergeben sich aus den Urteilsgründen Ansätze für gesetzliche Normierungen von Wahlprüfungsregelungen.
Respuesta de vegetación y comportamiento animal a diferentes tiempos de ocupación bajo el modelo holístico
Authors: Aguirre Calderón Carlos E. , De Luna Villarreal Reginaldo , Reynaga Valdés Juan Ricardo , Pérez Romero Luis , De León González Luis Lauro , Sánchez Pérez Félix
Published: January 2024

El trabajo se realizó en el período de agosto de 1997 a marzo de 1998. Los objetivos fueron: observar la respuesta de la vegetación y el comportamiento de los animales, para conocer el tiempo óptimo de ocupación en los potreros bajo el modelo holístico. Por medio del análisis dimensional se generaron modelos de predicción para estimar la utilización y el período de recuperación de Bouteloua gracilis, B. curtipendula, Rynchelitrum repens, Chloris virgata, Elyonurus barbiculmis y Trachypogon secundus. La utilización y los incrementos de producción se midieron a 3 distancias del agua. Se observó el comportamiento de los animales durante el período diurno, considerando las actividades de apacentamiento, búsqueda, rumia, descanso, caminar y distancias al agua, en que se realizaron las actividades. El grado de utilización fue mayor durante la época de crecimiento, y no fue proporcional al tiempo de ocupación en los potreros; la utilización en cada especie fue diferente entre potreros, y épocas del año. Los mayores incrementos en proporción se observaron en el potrero con 38 días de recuperación en todas las épocas del año; los incrementos entre especies fueron diferentes entre potreros y épocas del año. El tiempo de búsqueda con relación al tiempo de apacentamiento, fue menor en el potrero, con tres días de ocupación y el tiempo de rumia con relación al tiempo de apacentamiento fue mayor en este mismo potrero, sin embargo, el tiempo de apacentamiento y de rumia se reducen, mientras que el de descanso y el tiempo que los animales permanecen en la distancia uno, y en el aguaje se incrementa conforme avanzan los días de ocupación.
Relación de las unidades calor (Uc) acumuladas con el rendimiento y valor nutritivo del forraje
Authors: Staff Sánchez Efraín , Díaz Solís Heriberto , De León González Luis Lauro , De Luna Villarreal Reginaldo , Zamora Villa Víctor Manuel
Published: January 2024

La producción de forraje representa una actividad de primer orden para la ganadería, y es influida por aspectos climáticos, fisiológicos y de manejo, esta dinámica actividad requiere de estudio y atención, para aprovechar mejor este recurso. Para el estudio se evaluaron cuatro especies forrajeras, y tres frecuencias de corte (alta media y baja), durante un año, y se analizaron en diseño de arreglo factorial 4 x 3, y se observó que el rendimiento de materia seca es dependiente de las Uc acumuladas, encontrándose una fuerte relación entre estas variables; sobre todo en las especies alfalfa y buffel, y en menor grado en las gramíneas C3. La digestibilidad, proteína cruda, y valor relativo del alimento, están positivamente relacionados entre ellos, y negativamente, con el rendimiento de materia seca y las Uc, las que se relacionan positivamente entre ellas. Las especies en las diferentes estaciones pueden presentar diferentes contenidos de fibras, relacionados al incremento en Uc acumuladas, las que aumentan la producción de forraje, pero disminuyen la calidad del mismo. La proteína cruda y digestibilidad, alcanzaron su mejor valor entre 780 a 900 Uc en alfalfa, en buffel lo hace cerca de las 1000 Uc, en festuca y orchard, los mejores valores de estas variables se obtuvieron con 900 Uc aproximadamente.
Efecto de la restricción alimenticia sobre el comportamiento productivo de pollos de engorda
Authors: Suárez-García Lorenzo , Fuentes-Rodríguez Jesús Manuel , Torres-Hernández Manuel , López Domínguez Sotero
Published: January 2024

La sobrealimentación y los subsecuentes problemas de origen metabólico, frecuentemente se derivan de programas de alimentación mal aplicados. Se estableció un experimento para medir el efecto de restricción alimenticia (RA) cuantitativa (libre acceso, 18, 16 y 14 h de consumo) sobre el comportamiento productivo y las características de la canal de pollos de engorda. La restricción alimenticia fue del día 7 al 28 de edad (fase de iniciación). Del día 29 a 56 de edad las aves se alimentaron a libre acceso, lo que se consideró la fase de finalización. Se utilizó un diseño completamente al azar con cuatro tratamientos y tres repeticiones por tratamiento. La RA aumentó el porcentaje de mortalidad en 3.33 %, redujo el consumo de alimento (P<0.05). La severidad de la restricción afectó (P<0.05) negativamente la ganancia semanal de peso únicamente en las semanas 1, 3 y 5, y el peso vivo por fases (P<0.05), únicamente en la primera y no así en la fase de finalización y total (P<0.05); tampoco afectó la conversión alimenticia (P>0.05). Después de la restricción, la ganancia semanal de peso, el peso vivo, el consumo de alimento, la conservación alimenticia no fueron diferentes estadísticamente (P>0.05). El rendimiento en canal y partes seccionadas principales, secundarias y menudencias, no fueron estadísticamente diferentes (P<0.05). El índice económico fue mayor en el Tratamiento 1 que en los otros. Se concluyó que la severidad de la restricción no afectó la mortalidad, las variables productivas, el rendimiento en canal, ni el rendimiento de partes seccionadas principales y secundarias.
BAYESIAN STUDY OF NORMAL SEQUENCE APPLYING A PRIOR MIXTURE TO THE LOCATION PARAMETER
Authors: Dr. E. Nathiya  , Mrs. P. Anandhi
Published: January 2024

This article discusses Bayesian Analysis of Normal Sequence using Mixture of Priors. Using the Bayesian methodology, one can generate Bayes estimates by assuming a newly created Mixture combination of priors for location and correct prior for scale parameters. In order to get Bayes estimates for our study, we have assumed that one innovative form of prior, such as a double exponential prior combined with the usual type prior, viz., Normal prior for the mean parameter and correct prior, viz., Inverted gamma prior for the location parameter. Examples of the recently developed methodology in numerical studies are shown by the mean square error of the Bayes estimates of both parameters computed with different known and unknown nature of the parameters and results given with full discussion.
Implementasi Program Kampus Mengajar Angkatan 5 dan Dampaknya terhadap Kemampuan Literasi Siswa di SDN 156/IX Muhajirin Jambi
Authors: Resiyani Wulan
Published: January 2024

Kegiatan Kampus Mengajar bertujuan meningkatkan kemampuan literasi, numerasi, adaptasi teknologi dan administrasi sekolah. Tujuan dari penelitian ini yaitu mengetahui implementasi program kampus mengajar, hambatan yang dihadapi serta dampak program kampus mengajar bagi peningkatan kemampuan literasi siswa SD N 156/ IX Muhajirin Jambi. Program yang dilaksanakan dalam kegiatan Kampus Mengajar 5 di SD N 156/IX Muhajirin meliputi : 1. Klinik Literasi, 2. Membaca 15 Menit Sebelum KBM, 3. Pembelajaran Literasi dengan Bahasa Inggris, 4. Pembelajaran Literasi dengan Permainan Tebak Apakah Aku, 5. Kunjungan Wajib Perpustakaan, 6. Kegiatan Literasi dengan Merangkum Video Pembelajaran, 7. Adaptasi Teknologi dengan AKM (Asesmen Kompetensi Minimum), 8. .Gerakan Literasi dengan Membuat Pojok Baca. Hambatan yang dihadapi team kampus mengajar yaitu masih minimnya sarana dan prasarana sekolah yaitu fasilitas computer, ruang perpustakaan dan karakter siswa yang tidak memiliki motivasi kuat dalam belajar sehingga kemampuann ya rendah menjadi permasalahan yang terjadi. Implementasi program Kampus Mengajar memberikan dampak positif yaitu peningkatan kemampuan literasi siswa, meningkatna minat baca siswa serta kebiasaan baik yang dibawa siswa hingga ke lingkungan rumah.
Cost-Benefit Analysis of Buffalo Milk Production in India
Authors: Kaur Napinder , Iqubal Md Asif , Toor Jasdeep Singh , Abusaad Md
Published: January 2024

Context: The vast resource of Indian livestock played an important role in improving the socio-economic conditions of people in rural areas. Dairying has provided strong support to stabilise the Indian economy by ensuring a certain degree of diversification and flexibility.

Aim: The present study aims to analyse the costs and returns from buffalo milk production in the Punjab state of India to know about the viability of the dairy business.

Methods: The present study is based on primary data collected through a detailed schedule from 420 dairy farmers belonging to different farm size categories (landless households, large, medium, small, and marginal farmers) from 21 villages situated across three different agro-climatic zones of Punjab state in 2019. A multi-stage sampling technique has been used to select the villages and dairy farmers in the study area.

Key Results: The study has revealed that the total costs of buffalo milk production are ₹180.16 per day per milch buffalo. The sale of fluid milk constitutes a major component of gross returns. The net returns are calculated as ₹6.42 per litre from buffalo milk production in rural Punjab.

Implications: Economic analysis of dairy farming is very important to know about the economic viability of dairy enterprises. The profitability from dairying depends upon the milk yield of dairy animals, the sale price of milk, and the cost involved in dairying. Adequate knowledge of the cost involved in dairying is important as it can be used for policy-making and also for providing incentives to dairy farmers.