Operational Concept Research Articles

Cost-effective eggshell-modified LDH composite for caffeine adsorption, cytotoxicity and antimicrobial activity: exploring the synergy and economic viability in search processes.

The rise of pharmaceutical residues poses a serious threat to ecological and aquatic environments, necessitating the development of cost-effective, convenient, and recyclable adsorbents. Given the high global consumption of eggs, a significant amount of waste eggshell is produced. The techniques outlined here aim to manage eggshell waste by transforming it into highly valuable products, addressing the issue of eggshell waste in communities and industries. This approach supports the concept of zero-waste operations to create value-added goods, contributing to sustainable development. In the future, this method of waste management and material recycling may be adopted as an alternative. CaO-based ZnFe-layered double hydroxide (LDH) is identified as an efficient adsorbent for caffeine (COF) residues due to its biodegradability and biocompatibility. We extensively analyzed the synthesized CaO, ZnFe-LDH, and CaO/ZnFe-LDH composites before the adsorption processes using FT-IR, XRD, SEM, EDX, BET surface area, PZC, TGA/DTG, and after the adsorption processes using FT-IR. We investigated factors affecting the adsorption process, such as pH, adsorbent dose, COF concentrations, and time. Six non-linear adsorption isotherm models were studied at pH 7 for the composite and pH 9 for LDH, showing maximum adsorption capacities (q max) of 152.35 mg g-1 for LDH and 194.87 mg g-1 for CaO/ZnFe-LDH. Kinetic studies were also conducted. Interestingly, the MTT assay conducted on WI-38 cells revealed minimal toxicity, with most tests indicating cell viability above 60%. The synthesized CaO, ZnFe-LDH, and CaO/ZnFe-LDH composite exhibit robust antimicrobial properties against two pathogens, including Gram-negative bacteria (Escherichia coli) and Gram-positive bacteria (MRSA). The MIC values for the synthesized materials range from 0.87 to 7 µg mL-1, varying with the microbial species. Two green metrics were applied: the analytical Eco-scale and the Analytical GREEnness Calculator (AGREE).

Značaj marketinga u sektoru zdravstva

In modern society, the application of the marketing concept becomes crucial, even in the nonprofit sector, including areas such as healthcare, education, and culture. Although marketing traditionally has not been prevalent in nonprofit organizations, changes in funding sources and increased competition encourage these organizations to reconsider their approach. Analyzing the roles of marketing in the healthcare sector, we emphasize the need for adaptable strategies due to dynamic circumstances and the necessity of embracing the marketing concept in the daily operations of healthcare institutions. Many healthcare institutions have not fully grasped the specificity of healthcare services compared to other service industries, nor the specificity and concept of patients compared to typical customers. Besides healthcare, staff should provide patients with so-called cognitive and emotional care. It is precisely from such specificities, such as patient participation in their treatment, that reasons for building loyalty or patient disengagement from a particular healthcare institution arise. By utilizing numerous studies in the field of relational marketing, this paper aims to highlight numerous shortcomings that healthcare institutions make in their relationships with current or prospective patients. A holistic marketing approach can ensure the influx of new patients, but only the creation and maintenance of quality relationships with them can provide healthcare institutions with patient loyalty, as well as the opportunity for long-term growth and development.

Geometric analysis of pontoon and mooring line towards hydrodynamic response

Floating Photovoltaics (FPV) are renewable energy producing technological breaktroughs whic are suitable to circumtances of lakes across Indonesia. The core of this technology is the function of working transformers installed on the pontoons. An FPV with 145 Mwac capacity is designed to run on Cirata weir by utilizing pontoons with the length of 16.5 meters. The hydrodynamic response in the form of plane and rotation movements due to surrounding loads (including but not limited to wave, wind and sea depth data) calculated by using Response Amplitude Operator (RAO) concept. The wave period measured in meter from 0 to 180 ° incoming degree, the biggest translational response comes from pontoon i.e 0.986 (m/m) in sway direction, spread mooring is used to limit the pontoon’s movement. Using weighing concept, in operating condition Tension Mooring Line is obtained at the value of 1.67 for pontoon. While in extreme condition the obtained value is 2.5.

Maritime Applications of Prolonged Casualty Care Sepsis on a Destroyer During Distributed Maritime Operations.

During distributed maritime operations, individual components of the naval force are more geographically dispersed. As the U.S. Navy further develops this concept, smaller vessels may be operating at a significant time and distance away from more advanced medical capabilities. Therefore, during both current and future contested Distributed Maritime Operations, Role 1 maritime caregivers such as Independent Duty Corpsman will have to manage patients for prolonged periods of time. This manuscript presents an innovative approach to teaching complex operational medicine concepts (including Prolonged Casualty Care [PCC]) to austere Role 1 maritime caregivers using a hypothetical scenario involving a patient with sepsis and septic shock. The scenario incorporates the Joint Trauma System PCC Clinical Practice Guidelines (CPG) and other standard references. The scenario includes a stem clinical vignette, expected clinical changes for the affected patient at specific time points (e.g., time 0, 1, 2, and 48h), and expected interventions based on the PCC CPG and available shipboard equipment. Epidemiology of sepsis in the deployed environment is also reviewed. This process also identifies opportunities to improve training, clinical skills sustainment, and standard shipboard medical supplies.

The environment and ergonomics of clothing in the design of a human comfort system

During the time of stay in the city outside the closed premises during the periods of seasonal cooling, for a human thermal protection is provided by clothing. Clothing for protection from the cooling environment in the city is considered comfortable if its weight and dimensions do not limit a person in a given route and specificity of movement and does not draw attention to their own thermal sensations (i.e., the thermal balance of a person does not go out of the biophysical norm). Effective smart thermal protective clothing requires the inclusion in the thermoregulation system of consideration of individual human activity, which to some extent depends on the weight of the garment. Paper shows the proposed schematic diagram of the concept of operation of the functional system of smart thermal protective clothing. On the basis of the developed models and established functional relations for the proposed structure of smart thermal protective clothing, studies of its thermal effect depending on the properties of the clothing have been carried out. The developed functional models of connections of input and output parameters of biotechnical system “man-clothing-environment” allowed to reveal regularities of influence of clothing parameters and its weight on thermal comfort of a person in it.

Investigating the impact of stop network designs on DRT operation

Modern on-demand mobility concepts have the potential to drive the mobility transition. Increasing attention is being paid to DRT (Demand Responsive Transportation) services that enable the bundling of trips with the help of dynamic routing algorithms. Many providers use a stop-based operating concept for this purpose. The transport between so-called virtual stops promises a higher fraction of shared trips and shorter vehicle detours. The aim of this paper is to investigate multiple stop network designs and their impacts on the efficiency of the operation. For this purpose, three stop network generation approaches were derived from literature and applied to the simulation environment MATSim. A scenario in the city center of Berlin is simulated, where all inner car trips are replaced by DRT. Comparing the stop network design against a door-to-door service, the results suggest a trade-off between a reduction of vehicle kilometers (up to 18%) and increased walking distances (up to 250 meters on average).

Multistep collocation technique implementation for a pantograph-type second-kind Volterra integral equation

<p>In this research, we have elaborated high-rate multistep collocation strategies in order to concern with second-type vanishing delay VIEs. Herein, characteristics of uniqueness, existence, and regularity for both numerical and analytical solutions have been shown. To explore the solvability of the system derived from the numerical method, we have defined particular operators and demonstrated that these operators are both compact and bounded. Solvability is studied by means of the innovative compact operator concepts. The concept of convergence has been examined in greater detail, revealing that the convergence of the method is influenced by the spectral radius of the matrix generated according to the collocation parameters in the difference equation resulting from the method's error. Finally, two numerical examples are given to certify our theoretically gained results. Also, since the proposed numerical method is local in nature, it can be compared to other local methods, such as those used in reference <sup>[<xref ref-type="bibr" rid="b1">1</xref>]</sup>. We will compare our method with <sup>[<xref ref-type="bibr" rid="b1">1</xref>]</sup> in the last section.</p>

A sensitivity analysis approach to reduce economic risks in the design of edge-cloud automation systems in industry

The migration of field-level automation systems to an edge-cloud hosted on premises can reduce the operation costs of a manufacturing line and increase its flexibility thanks to computation scalability and use of cloud-native operation concepts. Nonetheless, due to the novelty of the concept, a transparent life-cycle costs (LCC) assessment for edge-cloud automation systems (ECASs) is complex to achieve. In particular, uncertainties concerning costs related to the engineering and operation of an ECAS, such as commissioning delays or unexpected failures, increase the risks of investments towards its adoption. In this paper we propose a sensitivity analysis approach based on Monte Carlo (MC) life-cycle simulations. Through the approach, design parameters of an edge-cloud are investigated concerning their impact on the magnitude and distribution of LCC. The use of the approach is tested on a real-world case study to optimize the choice of the edge-cloud components and reduce the economic risks for its adoption. The proposed approach is expected to be integrated in early stages of the design process of a production line to identify cost-viable designs of ECASs, thus fostering the transition towards smart manufacturing systems.

Raciocínio clínico de terapeutas ocupacionais brasileiras experts: um estudo da teoria fundamentada em dados construtivista

Abstract Introduction Practice-based models or theories are relevant elements for understanding deliberate thinking processes in individualizing care for a specific client in occupational therapists' practice. The Dynamic Occupational Therapy Method (DOTM) is an ongoing conceptual-methodological framework developed in Brazil since the 1970s. Objective To examine the clinical reasoning processes of expert occupational therapists employing the DOTM. Method A constructivist grounded theory approach guided this study. Data were collected and analyzed simultaneously through Constant Comparative Analysis. Individual and in-group interviews, and a reflective journal, comprised the data collection instruments. Participants were ten expert occupational therapists with: minimum of 10 years of practice experience, minimum of five years since completion of the DOTM clinical training, employing the DOTM as the main framework in practice, and considered by peers as experts. Results Two major categories emerged from data analysis: (1) the DOTM reasoning processes – construction of the situational diagnosis, establishment and management of the triadic relationship, and dialogical assessment of the therapeutic process/associative paths; (2) thinking ethical-aesthetically, associatively, and dynamically. Conclusion This research advances knowledge about the reasoning processes of expert therapists, demonstrating the importance of theoretical and methodological knowledge to inform clinical reasoning. A theory on the clinical reasoning of expert occupational therapists employing the DOTM was developed, detailing how this conceptual-methodological framework underpins reasoning by providing valuable operational concepts to support a dynamic practice centered on the clients' uniqueness and situated context.

A Plan B: An Australian Support to Resistance Operating Concept

A Plan B: An Australian Support to Resistance Operating Concept

Principles and dilemmas of disinformation (deception) on selected historical examples

The study presented here attempts to draw a synoptical comparison of the modern principles of operational camouflage through military deception. The research problem adopted encompasses the practical employment of disinformation and deception in an appropriate and inappropriate manner. The first part of the article contains an attempt to briefly present the current theoretical assumptions related to operational deception, including disinformation. The second part is dedicated to an arbitrarily selected examples from the history of the 20th-century warfare. The third part comprises conclusions and references of the theoretical assumptions to selected examples of armed struggle. The article contains two fundamental conclusions. The first one is the possibility of gaining an advantage at every operational level, especially at the tactical level, through employment of deception. The second one states that success is determined by a concept of operation which is recognizable by the opposing side, using the so-called Magruder’s principle and Jones’s dilemma.

UNDERSTANDING THE CONCEPT OF ALGEBRAIC FORM USING APOS THEORY IN TERMS OF PERSONALITY TYPE

This research is based on descriptive research with a qualitative approach. The purpose of this study is to describe the understanding of the concept of algebraic form of junior high school students using APOS (Action, Process, Object, and Scheme) theory in terms of introverted and extroverted personality types. The instruments in this study are researchers (key instruments), personality type questionnaires, concept understanding tests and interviews (supporting instruments). Data collection techniques in this study using questionnaire, test and interview methods. The subjects in this study were one female student with introverted personality and one female student with extroverted personality. The results showed that the understanding of the concept of algebraic forms of introverted students based on APOS theory is at the action, process, object and scheme stages related to the concept of arithmetic operations of algebraic forms and is at the action stage related to the concept of solving contextual problems related to algebraic forms. While the understanding of the concept of algebraic form of extroverted students based on APOS theory is only at the action stage related to the concept of arithmetic operation of algebraic form and the concept of solving contextual problems related to algebraic form. Researchers hope that this research can be used as a consideration for teachers to pay more attention to the type of personality possessed by students, so that concepts can stick and reduce the occurrence of misunderstanding of concepts

Lean Construction in the UAE: Implementation of Last Planner System®

Question: Is there a possibility of applying the Last Planner System® in the UAE construction environment? Purpose: Investigating the success and failure factors of implementing the Last Planner System® (LPS®) in UAE construction projects. Research Methodology: The research was conducted through exploratory interviews with construction professionals and an explanatory case study in the UAE. Findings: LPS® implementation is applicable within the UAE construction market. The challenges on the level of operation can be addressed by using the concept of gradual change operations. Limitations: limited interview sample; use of a single case study; the implementation is newer in UAE. Implications: The procedure used within the case study will conform to the LPS® as a tool until it becomes an accepted concept. Value for authors: Enriches the efforts of studying the implementation of the LPS® within the Gulf area and the Middle East in general due to minimal research covering the LPS®. In addition, the approach used for implementing the LPS® is unique to the context studied. Keywords: Lean, Construction, Lean Construction, Last Planner®, Last Planner System® Planning, Project Management Paper type: Case Study

THE CONCEPTS OF QUALITY AND ACCOUNTABILITY IN GENERAL AND HIGHER EDUCATION

This article presents three measures of educational quality and six types of accountability, noting that these terms are complex and often contradictory. These terms are often used uncritically, with the result that educational policies following from them are misconceived or simply drift. For educational policies to be sound, they must be based on a clear use of terms and on a sound understanding of desired objectives. These objectives are matters both of stakeholders’ preferences and politics. The subjective and political nature of educational policies should be recognized, so that there can be formed an explicit basis for and consensus around appropriate educational objectives. The purpose of this article is to bring clarity to the common concepts of quality and accountability in education, so that educational policies may be better informed. The methodological basis of the research is the methods of comparative analysis of scientific research in the field of social and natural sciences, the authors of which investigated human, social and cultural capital. The educational establishments of all countries need from time to time to deeply re-examine certain operative concepts. In this regard, an informed consensus needs to be reached about the multidimensional and sometimes contradictory notions of quality and accountability. Habit and drift are not helpful to educational policy; instead, educational values and goals should be actively discussed and clarified in broad national discussions, comprising all major interested parties. A good educational system is ultimately a civic achievement, set within a community of informed and interested stakeholders.

Applied Improved Canny Edge Detection for Diagnosis Medical Images of Human Brain Tumors

Medical image processing has become one of the crucial elements of the diagnostic process because of the increased usage of medical imaging recently, and clinicians' dependence on such computer-processed medical images in diagnosing patients. As the traditional Canny edge detection algorithm is sensitive to noise, it is easy to lose weak edge information when filtering out the noise, and its fixed parameters show poor adaptability. The suggested algorithm introduced the concept of image block intensity operator to replace image gradient. In addition, the computing speed of the suggested algorithm is relatively fast because it works block by block rather than pixel by pixel. Two adaptive threshold selection methods are presented, one based on the median accumulative histogram of image gradient magnitude and the other on the standard deviation for both types of image pixels (one with less edge information and the other with rich edge information). The proposed algorithm can be dividing into four stages: Input the medical digital image, convert the color medical image to gray-scale, applied improved canny edge detection, then calculate the MSE & PSNR Measures, in addition conduct a visual questionnaire by oncologists to find out which method that made the enhancement of the medical image clearer.

A Study on Operation Concept of Naval Surface to Air Defense System with Complex Assets

A Study on Operation Concept of Naval Surface to Air Defense System with Complex Assets

Implementasi Metode Jarimatika dalam Meningkatkan Kemampuan Berhitung pada Operasi Kabataku

Jarimatics is a simple and fun way of teaching children basic computation according to the principle: start by correctly understanding first the concepts of numbers, number symbols, and basic counting operations, then teaching how to count with the fingers of the hand. The low ability and desire of students in counting on mathematical subjects makes the method of JARIMATIKA suitable introduced to students SDN 02 Pasar Keong as a solution in completion of mathematics as well as improving the ability to count on Operation KABATAKU. The method of implementation performed by the Community Devotion Team is divided into 3 sessions namely: 1) delivery of material about jarimatika method and Operation count using such method, 2) ice breaking in order to arouse the spirit of students during the activity, 3) Applying the material that has been given with the use of staircase snake tools. Thus the student's ability to calculate improved and better than before taught the Jarimatic Method and the student considered counting a pleasant thing.

Research on the Development of China's Short Video Industry

Short videos refer to video content uploaded, shared, and watched through mobile internet platforms with a duration of between 15 seconds and 10 minutes. Since the popularity of 4G networks, the short video industry has achieved rapid development, and hundreds of millions of user-level platforms such as TikTok and Kwai have been born, which has established a strong influence in the mobile Internet era. This paper uses SWOT writing models to analyze TikTok's features and strengths, weaknesses, opportunities opportunities and potential risks. It provides rationalization suggestions for future growth and development. This is because TikTok is not only in the absolute leading position with other short video apps, such as Kwai but also has strong learning and reference value, so readers can not only learn a series of successful methods, such as business models, operation concepts, timing, etc. but also learn how to use the short video platform as a marketing tool. For some marketers, it is also possible to understand consumer behavior and they can adjust their marketing campaigns to better understand the audience segments they need.

Fractional order study of magnetohydrodynamical time-dependent flow of Prandtl fluid

Although the thermal and flow analysis of complex mechanisms of electrochemistry, dispersion and viscoelasticity is significantly addressed in the literature but none of the studies are made through the concept of fractional differential operators with computationally stable numerical solutions. The current work is a first attempt for the fractional classification and computational analysis of the Prandtl fluid. The physical model is formulated to examine the thermal, flow and concentration transference for a naturally convective, time-dependent, incompressible, and stagnation point flow of Prandtl fluid over an infinite plate under the impacts of magnetic, chemical reaction, Soret and Dufour. The mathematical expression of the model is expressed in terms of partial differential equation coupled with Caputo's fractional temporal differential operator. The computational code based on finite difference scheme is formulated to simulate the model. The detailed analysis of the flow pattern, thermal management and concentration of the diffusive species are made computationally. It is noted that involvement of the fractional parameter is useful to control the flow motion, heat transport and concentration of the diffusive species according to the required physical system. The temperature of the system increases 64 % against the variation of radiation parameter when fractional order parameter α=0.4 then the integer order. The study will be a useful addition to non-Newtonian computational mechanics and numerical treatment of such complex models.

Implementation of the Concept of a Single Operator for the Integrated Development of Territories Based on the Financial Institute for the Development of Housing Construction JSC «DOM.RF»

Currently, the integrated development of the territory is one of the avant-garde tools for the implementation of the state urban planning policy. However, at the same time, it should be noted that the existing model of the implementation of the integrated development of the territory is characterized by the presence of a large number of prerequisites that prevent the effective implementation of various directions of the integrated development of the territory in practice, primarily related to the issue of administration of this process and the existing contradictions arising within the framework of interactions between participants in the process of integrated development of the territory, both on the part of the private investor, and on the part of the relevant executive authorities of the regional and federal levels. The article discusses issue of implementation the concept of a single operator for the integrated development of territories based on the financial institute for housing Development of JSC «DOM.RF», as one of possible ways to eliminate the existing contradictions that hinder effective implementation of this institute of urban policy.