bluuebunny/crossref_metadata_2025 huggingface dataset:
BioNames update - taxon concepts
Authors: Page Roderic
Published: September 2023

Quick notes on "taxon concepts". In order to navigate through taxon names I plan to have at least one taxonomic classification in BioNames. GBIF makes the most sense at this stage. The model I'm adopting is that the classification is a graph where nodes have the id used by the external database (in this case GBIF). Each node has one or more names attached, and where possible the names are linked to the original description.
…and now for some lock-picking cockatoos
Authors: Brembs Björn
Published: September 2023

Yesterday, Alex Kacelnik published yet another fascinating discovery – one of many over the years out of his lab. This time, they show how birds can pick even five consecutive locks to get to a food reward: According to the authors, the birds solve this problem by trial and error, i.e., in the operant, goal-directed way, which is the learning mechanism we study in our lab.
One more reason to publish negative results
Authors: Brembs Björn
Published: September 2023

It might just save your life (via Upturned Microscope): BTW, even if your life is not at stake, someone else’s may be. So you should publish your results if you are sure something definitely will not work, for instance in F1000 Research, where you can publish negative results for free until August 31, 2013. Your colleagues will be grateful.
The regiospecificity of di-imide reduction of an alkene.
Authors: Rzepa Henry
Published: September 2023

Not a few posts on this blog dissect the mechanisms of well known text-book reactions. But one reaction type where there are few examples on these pages are reductions. These come in three types; using electrons, using a hydride anion and using di-hydrogen. Here I first take a closer look at the third type, and in particular di-hydrogen as delivered from di-imide.
X-ray analysis and absolute configuration determination using porous complexes.
Authors: Rzepa Henry
Published: September 2023

This is another in the occasional series of “what a neat molecule”. In this case, more of a “what a neat idea”. The s-triazine below, when coordinated to eg ZnI

2

, forms what is called a metal-organic-framework, or MOF.
Bibliographic metadata pollution
Authors: Page Roderic
Published: September 2023

I spend a lot of time searching the web for bibliographic metadata and links to digitised versions of publications.
Free will: it’s not what you think it is
Authors: Brembs Björn
Published: September 2023

To my knowledge, no neuroscientist hypothesizes that there is magic in our heads. However, it appears this is a hypothesis that flies by the editors at the New York Times.
Towards DOIs for Biodiversity Heritage Library articles
Authors: Page Roderic
Published: September 2023

The new look Biodiversity Heritage Library includes articles extracted from BioStor, which is a step forwards in making the "legacy" biodiversity literature more accessible. But we still have some way to go. In particular the articles lack the obvious decoration of a modern article, the DOI.
Trimethylenemethane Ruthenium benzene
Authors: Rzepa Henry
Published: September 2023

Every once in a while, one encounters a molecule which instantly makes an interesting point.
Secrets of a university tutor. An exercise in mechanistic logic: first dénouement.
Authors: Rzepa Henry
Published: September 2023

The reaction described in the previous post (below) is an unusual example of nucleophilic attack at an sp

2

-carbon centre, reportedly resulting in inversion of configuration[cite]10.1021/ja00765a062[/cite]. One can break it down to a sequence of up to eight individual steps, which makes teaching it far easier. But how real is that sequence?
Why is the carbonyl IR stretch in an ester higher than in a ketone?
Authors: Rzepa Henry
Published: September 2023

Infra-red spectroscopy of molecules was introduced 110 years ago by Coblentz[cite]10.1103/PhysRevSeriesI.20.273[/cite] as the first

functional group

spectroscopic method (“

The structure of the compound has a great influence on the absorption spectra.
BioNames phylogenies screencast
Authors: Page Roderic
Published: September 2023

I've created a short screencast showing some of the phylogenies in BioNames. If you want to see these for yourself here are the links:Ocypodinae (ghost and fiddler crabs)  Osedax  (bone worms)Agaonidae (fig wasps) BioNames and phylogenies from Roderic Page on Vimeo.
#icanhazpdf more public than a publication?
Authors: Brembs Björn
Published: September 2023

This anecdote made my day today. On a

Drosophila

researcher mailinglist, someone asked if anybody on the list had access to the Landes Bioscience journal ‘Fly‘. I replied by wondering that if #icanhazpdf on Twitter didn’t work, the days of ‘Fly’ are probably counted, with nobody subscribing.
Another Woodward pericyclic example dissected: all is not what it seems.
Authors: Rzepa Henry
Published: September 2023

Here is another example gleaned from that Woodward essay of 1967 (

Chem. Soc. Special Publications

(Aromaticity),

1967

,

21

, 217-249), where all might not be what it seems. Woodward notes that the reaction between the (highly reactive)

1

does not occur.
The mechanism of the Birch reduction. Sequel to benzene reduction.
Authors: Rzepa Henry
Published: September 2023

I noted briefly in discussing why Birch reduction of benzene gives 1,4-cyclohexadiene (diagram below) that the geometry of the end-stage pentadienyl anion was distorted in the presence of the sodium cation to favour this product. This distortion actually has some pedagogic value, and so I elaborate this here.
Tight versus loose coupling
Authors: Page Roderic
Published: September 2023

Following on from my previous post bemoaning the lack of links between biodiversity data sets, it's worth looking at different ways we can build these links. Specifically, data can be tightly or loosely coupled.  Tight coupling  Tight coupling uses identifiers. A good example is bibliographic citation, where we state that one reference cites another by linking DOIs.
Resolving free-form citations
Authors: Page Roderic
Published: September 2023

CrossRef have released CrossRef Metadata Search a nice tool that can take a free-form citation and return possible matches from CrossRef's database. If you get a match CrossRef can take the DOI and format for you it in a variety of styles using DOI content negotiation.If, like me, you spend a lot of time trying to find DOIs (and other identifiers) for articles by first parsing citations into their component parts, then this is good news.
The mechanism of the Benzidine rearrangement.
Authors: Rzepa Henry
Published: September 2023

The benzidine rearrangement is claimed to be an example of the quite rare [5,5] sigmatropic migration[cite]10.1021/ja00335a035[/cite], which is a ten-electron homologation of the very common [3,3] sigmatropic reaction (

e.g.

the Cope or Claisen). Some benzidine rearrangements are indeed thought to go through the [3,3] route[cite]10.1021/ja00309a041[/cite]. The topic has been reviewed here[cite]10.1002/poc.610020702[/cite]. In
Secrets of a university tutor. An exercise in mechanistic logic: second dénouement.
Authors: Rzepa Henry
Published: September 2023

Following on from our first mechanistic reality check, we now need to verify how product

A

might arise in the mechanism shown below, starting from

B

. This pathway backtracks the original one in reversing the final arrow of that process (shown in red in previous post and in magenta here for the arrow in reverse), to go uphill in energy to reach the secondary (unstabilised) carbocation.
The mechanism of the Birch reduction. Part 3: reduction of benzene
Authors: Rzepa Henry
Published: September 2023

Birch reduction of benzene itself results in 1,4-cyclohexadiene rather than the more stable (conjugated) 1,3-cyclohexadiene. Why is this?
BioNames - colourful phylogenies and downloadable SVG
Authors: Page Roderic
Published: September 2023

My latest tweak to BioNames is to add colour to the phylogenies. Terminal nodes with the same name are labelled with the same background colour. For example, here is a tree for fiddler and ghost crabs:The colours make it easier to see that this tree has a mixture of a few sequences from divergent taxa, and a lot of sequences from the same taxa.Note that you can now also download the SVG drawing of the tree.
The butterfly effect in chemistry: aromaticity on the edge of chaos.
Authors: Rzepa Henry
Published: September 2023

The butterfly effect summarises how a small change to a system may result in very large and often unpredictable (chaotic) consequences. If the system is merely on the edge of chaos, the consequences are predictable, but nevertheless finely poised between

e.g.

two possible outcomes. Here I ask how a molecule might manifest such behaviour. Two examples of the molecule above are known, differing only in the nature of the R group.
Secrets revealed for conjugate addition to cyclohexenone using a Cu-alkyl reagent.
Authors: Rzepa Henry
Published: September 2023

The text books say that cyclohexenone

A

will react with a Grignard reagent by delivery of an alkyl (anion) to the carbon of the carbonyl (

1,2-addition

) but if dimethyl lithium cuprate is used, a conjugate

1,4-addition

proceeds, to give the product

B

shown below.
ZooBank data model
Authors: Page Roderic
Published: September 2023

I'm trying to get my head around the data model used by ZooBank to store taxonomic names. To do this, I've built a graph for the species  Belonoperca pylei  described by Baldwin &
Language and understanding
Authors: Kanjevac Slobodan
Published: September 2023

The presentation begins with an overview of the language dealt with by the ancient philosophers at the time of considering the matters of logos. A special contribution to the topic of the "language" is recorded by the appearance of Plato and Aristotle, as well as by the broader and more profound interventions observed through verbum theology, rationalist and empiricist understanding of the language, analytical philosophy of the language, phenomenology as a postulation of philosophical hermeneutics. By entering that area, the language is further ontologically thematized as the "house of the being" or "the being that can be understood".
Mexico and the Republic of Serbia: 77 years of uninterrupted and productive diplomatic relations: New challenges and opportunities
Authors: Feliks Karlos
Published: September 2023

In the archives of the Library of the University in Belgrade it is possible to find evidence that as early as 1844. the events in Mexico were written about in the old Serbian language, and that there was an interest in this country. Strong friendship and understanding between the two nations were formalized by the Protocol on the Establishment of Diplomatic relations on 24 May 1946, when the President of Mexico, Manuel Avila Camacho and the President of the Socialist Federal Republic of Yugoslavia, Marshal Josip Broz Tito, made this cooperation official. The closeness of these two peoples was most evident through their engagement in the Non-Alignment Movement and the promotion of the ideas of freedom and independence of each state, including their economic development. Such closeness, accompanied by mutual collaboration and assistance, has lasted for 77 years, to the satisfaction of both sides, with the perspectives of further strengthening and intensification.
Challenges of adult users of hearing amplification during the Covid-19 pandemic
Authors: Nikolić Mina , Ostojić-Zeljković Sanja , Jotić Ana , Đoković Sanja
Published: September 2023

Introduction. The Covid-19 pandemic has considerably affected many aspects of human life, especially healthcare and social services. The contacts of elderly people with family and friends, as well as their social activities, have been drastically reduced due to fear of contagious diseases with potentially serious consequences. Preventive measures of physical distancing and obligatory protective masks have brought additional challenges for hearing-impaired persons because of the decreased intensity and muffled quality of speech signals as well as the lack of visual cues because of the face masks. Objective. The study aimed to identify the challenges that adult hearing aid users faced during the Covid-19 pandemic. Methods. A special questionnaire was developed for the purpose of this study with a 3-point Likert type of scale. Results. The results of the study have shown that effective communication with other people during the pandemic was a great challenge for hearing-impaired participants. They pointed out the use of face masks and avoidance of communication with other people due to the fear of misunderstanding others. The participants noticed some changes in listening with hearing aids as well as mood swings and compliance to hearing aids. Most of the participants were satisfied with the access to hearing aids, fitting, and repair services, but none of them had access to rehabilitation and advisory support. Conclusion. The Covid-19 pandemic revealed the need for developing a network for alternative methods and approaches in surdology to provide advisory and rehabilitation services for hearing-impaired people as well as technical support for hearing aid users. That would be the way to provide ongoing support for hearing aid users, not only in extreme situations, such as the pandemic, but to increase the accessibility of those services in everyday life for all users.
KASAMBANG VILLAGE, MAMUJU DISTRICT: DEVELOPMENT OF PIKO HYDRO POWER PLANT USING FLOW RICE IRRIGATION IN KASAMBANG VILLAGE
Authors: Yusuf Mappeasse Muhammad , Haripuddin Haripuddin , Zauqi Andi
Published: September 2023

Pico Hydro Power Plant (PLTPH) is one of the power plants that uses water as an energy source. Piko Hydro is included in the category of hydropower plants with small power because it does not need to use a water discharge that is too large to produce power. The tool developed in this study is a Pico Hydro Power Plant by Utilizing Flow Irrigation. The purpose of this research is to find out the results of the development of a Pico Hydro Power Plant, the electrical energy produced, and the community's response. The research method used is descriptive-quantitative with Research and Development (R&D) research and a prototype development model consisting of 4 steps, namely needs analysis, building prototypes, installing, and evaluating. The research data obtained by observation, questionnaires, and documentation. The results showed that the pico-hydro power plant works well, as indicated by the very good product validation value; the water wheel at the generator has a maximum power of 308 watts; and in development with the application of MPPT type charger control regulators, the results are able to stabilize the electrical energy produced and increase the power capability of the power plant with the help of a backup battery supply. For the results of the responses from the Kasambang Village community in Mamuju Regency, as many as 15 respondents obtained very decent results.
Paracyclophane-based bipolar near-ultraviolet emitters showing advanced circularly polarized luminescent properties
Authors: Sun Yuling , Wang Hongyan , Liu Siqi , Lu Xinyue , Feng Zhao , Zhong Daokun , Jia Dongming , Yang Xiaolong , Su Bochao , Sun Yuanhui , Jiao Bo , Zhou Guijiang
Published: September 2023

As linking unit, [2.2]paracyclophane (PCP) has been inserted in between electron-donating groups (i.e. carbazole and 10H-phenoxazine) and electron-accepting groups (i.e. triphenyl-1,3,5-triazine and diphenylsulfone) to prepare a series of linear bipolar racemic near-ultraviolet (NUV) emitters owing to the planar chirality associated with the PCP. In toluene, the racemic bipolar PCP-based emitters can show emission wavelength in the range of 400-444 nm. Critically, very small Commission Internationale de L’Eclairage (CIE) chromaticity coordinate of y value of 0.03 has been achieved for the photoluminescent spectra of these bipolar racemic NUV emitters in solution. The PCP-based bipolar emitters can show efficient NUV emission with photoluminescent quantum yields (PLQY) of ca. 0.5 in doped mCP film. In addition, the enantiomers of the NUV emitters have been obtained to show obvious circular dichroism (CD) behavior and circularly polarized luminescence (CPL). The absorption asymmetric factor (gabs) of ca. 4.4×10-4 and photoluminescent asymmetric factor (gPL) of ca. 1.5×10-3 can be achieved by the PCP-based NUV enantiomers. After doped in the emission layer of organic light-emitting diodes (OLEDs), efficient NUV and deep blue-emitting OLEDs have been constructed. The NUV OLEDs based on the racemic emitters can achieve forward-viewing maximum external quantum efficiency (ηext) of 5.03% and electroluminescence (EL) peak at 404 nm with CIEy of 0.05, while the OLEDs with deep blue emission can show ηext of 4.12% and EL peak at 412 nm with CIEy of 0.08. Furthermore, the NUV chiral enantiomers can bring ηext of 5.25% and EL peak at 404 nm with CIEy of 0.05, while the deep blue chiral enantiomers can give ηext of 4.40% and EL peak at 412 nm with CIEy of 0.08. Clearly, these encouraging EL data show the great potential of these linear PCP-based bipolar emitters in the field of OLEDs.
Intention to Overcome Dating Violence Junior High School X in Urban Area The City of Semarang
Authors: Rahma Nis Syifa'ur , Aprianti
Published: September 2023

The Women’s Empowerment and Child Protection of Indonesia in 2022 showed the highest number of violence cases based on education level in Junior High School with 5,945 cases. This study analyzed the intention to overcome dating violence in adolescents at Junior High School X in the urban area of Semarang City. This research is a quantitative study with a cross-sectional design. The population of this study amounted to 484 populations using a purposive sampling technique with a sample of 114 respondents. The data was collected by a self-administered questionnaire and the data was analyzed using a chisquare test. The results showed that perceived vulnerability (64%), perceived seriousness (59.6%), response efficacy (61.4%), self-efficacy (70.2%), and intention (93%) were categorized as high in overcoming violence in a relationship. However, there is no significant relationship between perceived vulnerability (p-value=0.255), perceived seriousness (p-value=0.712), selfefficacy (p-value=0.05), and response efficacy (p-value=0.257) with the intention of overcoming dating violence. The recommendation is to provide education to students about the risks of dating violence.
El Impacto de la Terapia Cognitivo-Conductual sobre la Ansiedad Social en Jóvenes Adolescentes.
Authors: Sánchez Andrés
Published: September 2023

El objetivo de esta investigación fue analizar la ansiedad social en la población y determinar su impacto en la vida diaria. Se realizó un estudio transversal utilizando un cuestionario para evaluar la frecuencia y la intensidad de los síntomas de ansiedad social en diversas situaciones sociales. La muestra fue de 100 personas de entre 18 y 50 años, de ambos géneros y de diferentes niveles socioeconómicos. Los resultados indican que un alto porcentaje de personas experimenta ansiedad social en diversas situaciones cotidianas. En particular, hablar en público y hacer presentaciones son situaciones que generan un alto nivel de ansiedad en las personas encuestadas. Asimismo, se encontró que la ansiedad social afecta negativamente la capacidad de las personas para manejar situaciones sociales estresantes, y que muchos encuestados han evitado situaciones sociales por miedo o ansiedad. La ansiedad social es un problema importante que afecta a muchas personas en su vida diaria, limitando su capacidad para interactuar con los demás y desarrollarse en su trabajo y en su vida personal. Esta investigación destaca la importancia de identificar y tratar la ansiedad social, y sugiere que se necesitan más programas de prevención y tratamiento para abordar este problema.
Filosofía para un mundo pospandémico
Authors: Alvarez Vera Ronald
Published: September 2023

Resuelta evidente la desigualdad que ha develado la crisis sanitaria a nivel global. Sin embargo, no se trata de una fotografía actual, sino que ha puesto de manifiesto las falencias estructurales del sistema económico político global y, con ello, los devastadores efectos sobre el ser humano en todas sus dimensiones.  Las consecuencias de la pandemia no son homogéneas dentro de una misma sociedad. Existen sectores que se han vuelto más ricos y otros más pobres. Las distancias en salud, bienestar y dignidad de los individuos han aumentado y estamos ante una crisis de que esta injusticia se siga calcificando. El ser humano no sólo tiene que sobrevivir sino lograr la fundamental biopsicosocial realización tanto individual como colectiva. Por lo tanto, es imperativo, recuperar al Otro, al necesitado, dentro del discurso y, sobretodo, en la acción política, mirando al Otro como un fin en sí mismo, y no como un medio. Este es el origen y debe volver a ser la finalidad primordial de la política interna y externa de cada gobierno. Para ello, la reflexión filosófica nos proporciona nuevas perspectivas para reestructurar la realidad, cambiando, y mejorando, las escalas de valores y nuestro modo de actuar. La pospandemia nos plantea un único objetivo, el restaurar y reactivar las verdaderas relaciones intersubjetivas, rehumanizando al hombre, es decir, volviendo a la raíz de la esencia de toda sociedad, que no es otra que el ser humano mismo, como un fin en sí mismo. No se podrá lograr de manera inmediata, por lo tanto  es fundamental recanalizar todas las herramientas e instituciones políticas hacia y para el bienestar del hombre, sin devastar su entorno, donde la reflexión filosófica es primordial para construir un nuevo mundo.
A zero trust architecture model for access control in cloud-native applications in multi-location environments
Authors: Chandramouli Ramaswamy , Butcher Zack
Published: September 2023

One of the basic tenets of zero trust is to remove the implicit trust in users, services, and devices based only on their network location, affiliation, and ownership. NIST Special Publication 800-207 has laid out a comprehensive set of zero trust principles and referenced zero trust architectures (ZTA) for turning those concepts into reality. A key paradigm shift in ZTAs is the change in focus from security controls based on segmentation and isolation using network parameters (e.g., IP addresses, subnets, perimeter) to identities. From an application security point of view, this requires authentication and authorization policies based on application and service identities in addition to the underlying network parameters and user identities. This in turn requires a platform that consists of API gateways, sidecar proxies, and application identity infrastructures (e.g., Secure Production Identity Framework for Everyone [SPIFFE]) that can enforce those policies
irrespective of the location of the services or applications, whether on-premises or on multiple clouds. The objective of this publication is to provide guidance for realizing an architecture that can enforce granular application-level policies while meeting the runtime requirements of ZTA for multi-cloud and hybrid environments.
Comparison of ice-on-coil thermal energy storage models
Authors: Kanagala Kalyan Ram , Pertzborn Amanda
Published: September 2023

Data collected from the Intelligent Building Agents Laboratory (IBAL) at the National Institute of Standards and Technology (NIST) are used to develop a physics-based and four machine learning models of ice-on-coil thermal energy storage (TES): linear interpolation, linear regression, neural network, and Gaussian process. Data cleaning considerations are discussed in addition to presenting the results of the five models. For this TES system, which is linear over a significant range of operation, the linear interpolation model performs the best, but there is a thorough discussion of the advantages and disadvantages of each model.
Mechanical and Biological Behaviour of 3D Printed PCL-Based Scaffolds Fabricated by Fused Deposition Modelling for Bone Tissue Engineering: A Review of Recent Advances
Authors: Mohammed Mohammed Razzaq
Published: September 2023

The imperative need for alternative approaches to organ transplantation, replacing or regenerating damaged tissues is the key driving force for the remarkable development in tissue engineering. It can be precious in saving people who suffer from the critical shortage of organ donation. Such a strategy can repair injured body parts and tissues by using biomaterials, cells, and bioactive agents. Even though numerous scaffold manufacturing techniques have been available for bone regeneration, the three-dimensional (3D) printing approach can provide scaffolding with delicate features that may not be obtainable in other manufacturing strategies. For instance, when a 3D printer is used, it is possible to easily adjust scaffold pore architecture and size, porosity, and material alignment, forming customizable and defect-fillable scaffolds, which helps control the mechanical behavior of cellular response. The most prominent material used in scaffolding and printing is polycaprolactone (PCL), owing to its considerable potential and capabilities. It has favorable properties for the fabrication of bone tissue engineering scaffolds, such as biocompatibility, viscoelasticity, and affordability. Nonetheless, some inherent drawbacks of this polymer that limit its use in this field are detected, including inadequate mechanical performance, cell adhesion, osteoinductive deficiency, hydrophobicity, and low degradation rate. The incorporation of other materials within this polymer to form composites, on the other hand, can contribute to alleviating the negative influence of the PCL's undesirable characteristics. Improving the mechanical and biological behaviors of PCL-based scaffolds allows these structures to be utilized for tissue engineering since such composites can promote cell adhesion and differentiation, mimic anatomical characteristics of native bone, and can have superior mechanical performance. In this review, the latest advancements in printing intricate geometries 3D PCL-based composites using bioactive ceramics and/or biopolymers by fused deposition modeling (FDM) for bone tissue engineering will be explored, particularly from a morphological, mechanical, and biological perspective.
Preparation of PMMA/SiO2 Composite Sheets for Tribological and Mechanical Tests
Authors: Hussein Mushtaq Abdul Kareem
Published: September 2023

This paper aims to prepare PMMA sheets (Polymethyl methacrylate sheets) reinforced with SiO2 nanoparticles (Silicon oxide nanoparticles) to obtain samples for tribological and mechanical tests. PMMA reinforced sheets are prepared by three methods; dissolving, pressing, and casting. In the first method, the pure PMMA granules were dissolved with an organic solvent. The SiO2 nanoparticles were dispersed using a magnetic stirrer. Then, the solution was poured into a glassy mold. In the second method, pure PMMA powder was used, and SiO2 nanoparticles were dispersed using a nanoparticle disperser device; then, the mixture was placed in a metal mold and pressed by a thermo-hydraulic press. While in the third method, pure PMMA resin and hardener were used, and SiO2 nanoparticles were dispersed using an ultrasonic probe machine, and then the mixture was poured into a glassy mold. The three preparation results showed that the obtained sheets were free of bubbles and that their surfaces were of excellent smoothness and could be cut using a laser to obtain the samples required for tribological and mechanical tests such as tensile test, impact test, wear test, surface hardness test, surface roughness test, and scratch resistance test and others.
Solving Unit Commitment Including Wind Power Generation Using PSS®E
Authors: L. Saleh Ameer , Altai Hisham Dawood Salman , Lazim Mohammed H. , Hazim Hussein Tuama , Lpizra Aymen
Published: September 2023

Operating the power system in an optimal way and keeping it safe and reliable is very important in power systems planning and operation.  The power system currently has a large variety of power plants that operate with different kinds of fossil fuel or use renewable energy to produce power. As the demand on electricity is fluctuated, utilities are obligated to provide consumers with power at any time during a day. Power system operators try to supply electricity in an economic operation by turning on the cheapest generating units and turning off the most expensive ones at off-peak value of the load. Finding the optimal combination of units to supply forecasting load is called unit commitment problem (UC). The second step of the optimization problem is finding the optimal output power from each committed unit, which known as economic dispatch (ED). The main benefits of solving the unit commitment problem and economic dispatch are to minimize generation cost over the objective period horizon while applying all system constraints that come from generating units’ limits and the transmission system’s characteristics, as well as to verify the balance between power generation and power demand. While, the optimal power flow (OPF) tries to find the optimal dispatch for the whole power system, but by taking into account all systems constrain, such as voltage security and transmission line limit. The optimal power flow can control many variables to find the optimal operation of the system, like a transformer tap changer, phase shifter, switched shunt, and load adjustment. In this paper, power system simulator for engineering (PSS®E) is used to solve unit commitment, economic dispatch, and optimal power flow. The implementation is performed on IEEE 30-bus system for a 24-hour period. In the first stage, the UC, ED, and OPF were solved for the systems without including wind power generation. In the second stage, UC, ED, and OPF were solved by including a wind-power farm with 100 MW rated power connected to the system. The solution is based on 24-hour wind data forecasting, and 24-hour power demand's prediction.
Study The Effect of Proppant Concentration of Screen-Out Phenomena While Hydraulic Fracture Job
Authors: AlHumairi Mohammed Abdul , Hamad Allah2 Samera
Published: September 2023

screen out is a blocking of the fracture path caused by bridging the path or accumulation of the proppant inside the fracture, clumping or lodging of the (solid particles) proppant across the hydraulic fracture width that causes to restrict formation fluid to flow into the hydraulically fractured formation. To avoid the screen out happening needing to save fracturing fluids, hydraulic horsepower. Conditions that leading to screen out during the hydraulic fracturing job in a well, such as, the ratio between the fracture widths to particle diameter that called (β), proppant concentration,  and wall roughness. The effects of these factors are investigated experimentally in the present work by building an apparatus that meet the shape of the real hydraulic fracture. The plugging time were measured and monitored through glass windows on both sides of the apparatus to follow the behavior of the proppant inside the fracture during the flow of the fracturing fluid or when the proppant plugs the fracture. To study the effect of the fracture wall roughness on the screen out phenomena, apparatus was build to get two different fracture shapes, to meet the real fracture wall in reality. Through the relation between the different proppant concentration and the plugging time, one can indicate on the graph the plugging region and non plugging region for different values of β, proppant concentration and fracture shape, in order to avoid the screen out. During designing the hydraulic fracture, the values of β were very important factor that can lead to screen out, through the results found that when β=1, the screen out happened very fast even at low proppant concentration, but for β=2, 3 and 4 the screen out depends on the proppant concentration and fracture shape. For β=5 it was found that, there is no screen out occurring for wide range of proppant concentration. The effect of hydraulic fracture wall roughness is important because it effect the speed of the suspension when passing through the fracture.
Experimental and Numerical Investigation of Aluminum Beams: Flexural Behavior Section Shape Effect
Authors: Fahad Resan Sa'ad , Jasim Nabeel Abdulrazzaq
Published: September 2023

Advanced technology and other aspects of life aim to use the available and efficient materials.  Due to their high strength-to-weight ratio and durability, aluminum alloys are used in a variety of structural engineering applications. This paper describes the experimental and numerical flexural behavior investigation of the aluminum beams. The main variables considered in the study are related to section shape, which are the shape configuration, depth, and thickness of the aluminum section. The finite element three dimensional models are used to analyze the tested beams in order to check the ability of the models to predict the overall behavior and to obtain more information about the stresses and strains that developed. The results show that the larger the value of the section shape factor, the fiber is still in the elastic range, and the smaller the plastic deformation of the beam. And the web plates slenderness ratio has a significant influence on the load-deflection relationship because of local deformation as well as the plastic deformation of box beams is relatively smaller than that of the I-section beam. The constraint of the flange for box beams is greater than that for I-section beams. Besides, the adopted nonlinear numerical modeling gives acceptable agreement with the experimental results besides the load-deflection responses, the ultimate strength convergence ratios varied between 1.1-0.93.
Experimental Investigation on the Effect of Using Different Calcium Sources with Biogrouting on the Improvement of Poorly Graded Fine Sand
Authors: Firas Jawad  , Musab S. abed  , Muammar H. Attaee
Published: September 2023

In light of the cities' growth, it has now become necessary to establish infrastructure in areas that were previously deemed inappropriate.To improve the engineering characteristics of these problematic lands, many methods have been applied. Recently, an innovative and sustainable technique called Microbial Induced Calcite Precipitation has emerged for soil improvement. Many factors that affect the efficiency of this technique include the concentrations of bacteria solution, the concentrations, and the type of the chemical solutions, in addition to methods to introduce the bacteria and these chemical solutions to the soil, pH, etc.The objective of this study is to evaluate the performance of the Microbial Induced Calcite Precipitation as a technique to improve and enhance the very fine poorly graded sandy soils and expand knowledge about improving a loos sand by using the MICP technique. Furthermore, this study was carried out using six types of calcium sources in the cementation solution, two concentrations of cementation solution as well as two types of soils. This study shows that the use of low concentrations provides a greater improvement in the engineering properties of the treated soil. The pH values were not greatly affected by soil type or the type of cementation chemical solutions and their concentration. The samples with axial splitting had a lower unconfined compressive strength than that shown by the samples with shear fracture.
ПІДГОТОВКА ПЕДАГОГІЧНИХ ТА НАУКОВО-ПЕДАГОГІЧНИХ КАДРІВ: НОВІ ПІДХОДИ І ШЛЯХИ РЕАЛІЗАЦІЇ
Authors: Задорожна Любов , Ягоднікова Вікторія , Кузнєцова Неля
Published: September 2023

У статті репрезентовано досвід академії щодо підготовки педагогічних та науково-педагогічних кадрів на основі нових підходів. Обґрунтовано актуальність запровадження підготовки здобувачів другого (магістерського) рівня за освітньо-професійними програмами «Педагогіка середньої освіти», «Освітній менеджмент у педагогічних системах», «Педагогіка вищої школи» та третього (освтньо-наукового) рівня за освітньо-науковою програмою спеціальності 011 Освітні, педагогічні науки. Розкрито особливості освітніх програм, визначені нові підходи до підготовки  педагогічних та науково-педагогічних кадрів і шляхи їх реалізації.
Mission accomplished: chronic North Sea oil pollution now at acceptable levels, with Common GuillemotsUria aalgeas sentinels
Authors: Camphuysen Kees
Published: September 2023

Marine oil pollution has been an issue of concern for at least a century. The earliest reports contained outrage over oil-contaminated dead seabirds found ashore. This paper reports on observed trends in strandings and oil rates of Common Guillemots Uria aalge to illustrate the history of oil pollution and its effects in the North Sea. This paper is also a tribute to Peter Hope Jones, who brought systematic beached bird surveys and oil-spill impact assessments to a higher level, by implementing detailed research on affected wildlife. In recent decades, unexpectedly, the oil problem has disappeared almost completely from the North Sea. Given the global nature of current environmental issues, including the climate and biodiversity crises, it may be instructive to examine the background to this stunning success. A short history of major oil events is presented, including the measures taken to reduce the oil problem. It required a succession of major oil incidents to push the community into action. The process of international conventions was notoriously slow, and the implementation of concrete measures even slower, as economic arguments prevailed to prevent or delay immediate action.
Graphical Method for Solving Neutrosophical Nonlinear Programming Models
Authors: Jdid Maissam , Smarandache Florentin
Published: September 2023

An important method for finding the optimal solution for linear and nonlinear models is the graphical method, which is used if the linear or nonlinear mathematical model contains one, two, or three variables. The models that contain only two variables are among the most models for which the optimal solution has been obtained graphically, whether these models are linear or non-linear in references and research that are concerned with the science of operations research, when the data of the issue under study is classical data. In this research, we will present a study through, which we present the graphical method for solving Neutrosophical nonlinear models in the following case: A nonlinear programming issue, the objective function is a nonlinear function, and the constraints are linear functions. Note that we can use the same method if (i) the objective function follower is a linear follower and the constraints are nonlinear; (ii) the objective function is a non-linear follower and the constraints are non-linear. In the three cases, the nonlinear models are neutrosophic, and as we know, the mathematical model is a nonlinear model if any of the components of the objective function or the constraints are nonlinear expressions, and the nonlinear expressions may be in both. At the left end of the constraints are neutrosophic values, at least one or all of them. Then, the possible solutions to the neutrosophic nonlinear programming problem are the set of rays NX ∈ Rn that fulfills all the constraints. As for the region of possible solutions, it is the region that contains all the rays that fulfill the constraints. The optimal solution is the beam that fulfills all constraints and at which the function reaches a maximum or minimum value, depending on the nature of the issue under study (noting that it is not necessary to be alone).
La Ansiedad Abordada a través del Psicoanálisis Relacional
Authors: Ramírez Gómez Carlos Alberto
Published: September 2023

La ansiedad es uno de los problemas más comunes que afectan a la población mexicana. A raíz de la pandemia, el término se ha popularizado de tal manera que ha reducido el impacto e importancia que tiene en las estructuras neuróticas. El objetivo de este trabajo es reducir y modificar la ansiedad de tal manera, que pueda presentarse como una respuesta adaptativa, logrando así, un cambio en las estructuras relacionales escindidas y, por lo tanto, en la estructura psíquica del paciente. Para este trabajo se utilizó la metodología de estudio de caso bajo los criterios del modelo circular, por lo que se requirió de un participante de 28 años, en la modalidad de teleterapia. Como resultado de la intervención, se propició que la paciente fuese capaz de vivir experiencias nuevas, creando un sentido de vida que incorpore elementos relacionales nuevos. Por lo tanto, se concluye que, por su naturaleza, el psicoanálisis relacional es un tratamiento adecuado para las dificultades intra e interpersonales que la ansiedad representa.
La educación en Perú, específicamente en Puente Piedra, se encuentra amenazada por la crisis sanitaria, 2021
Authors: Martínez Soto Laura Beatriz
Published: September 2023

Objetivo: El objetivo del estudio fue determinar la influencia de la crisis sanitaria en el desempeño docente y aprendizaje de estudiantes de educación básica, Puente Piedra 2021, en el marco de reforma y modernización del estado. Metodología: La metodología fue de enfoque cuantitativo, tipo aplicada, diseño no experimental descriptivo, asimismo, como técnica la encuesta y como instrumento un cuestionario de 36 Ítems. La muestra fue de 90 docentes en base a una población de 116 maestros. Resultados: Los resultados se obtuvieron mediante la tabla de estimaciones de parámetros, presentando un nivel de estimación de 72,797 y r= 0.743, asimismo, tuvo una significancia de p= .000, por lo tanto; se acepta la hipótesis principal: La crisis sanitaria influye en el desempeño docente y en el aprendizaje de estudiantes de educación básica, Puente Piedra 2021. Conclusión: Se concluye que, debido a la pandemia de COVID-19 la educación se ha mudado a la virtualidad, esto para evitar la propagación de contagios, sin embargo, ha ocasionado que el aprendizaje baje su calidad y el desempeño docente no sea el esperado.
La Visión de la Enfermería sobre los Cuidados Humanizados en Pacientes con Enfermedades Infecciosas Contagiosas
Authors: Hernández Ruiz Miguel Ángel
Published: September 2023

La apreciación de enfermería sobre los cuidados humanizados es una capacidad de cada uno de los profesionales de enfermería, lo cual ha permitido valorar a los pacientes de manera meticulosa y juntamente con el saber enfermero para poder emplear atención directa bajo un marco holístico. Objetivo: Describir la percepción que poseen los profesionales de enfermería sobre cuidados humanizados en pacientes portadores de enfermedades infecto contagiosas en el Hospital de Infectología ¨Dr. José Daniel Rodríguez Maridueña¨. Metodología: empleada para el trabajo fue cualitativa de carácter fenomenológico, la cual a través del instrumento de entrevistas permitió recolectar información, teniendo como informantes clave a 3 licenciados/as de enfermería en base a las experiencias cotidianas de la profesión. Resultados: se identificó la actitud que poseen los profesionales de enfermería, al mismo tiempo valores notoriamente positivos mientras imparten acciones de prevención y promoción, asimismo se relacionó la percepción conforme a la relación que tienen con los pacientes, de tal qué manera que se conoció la apreciación con respecto los enfermos y la búsqueda de técnicas para crear ambientes donde sientan bienestar en todo momento de su instancia hospitalaria. A su vez se empleó una aproximación en base a la teoría de Jean Watson demostrando la aplicación de cuidados humanizados por parte de enfermería dirigido en pacientes infecto contagiosos.  Conclusión: El personal de enfermería mantiene actitudes positivas en la realización del cuidado del paciente, así como una buena percepción en cuanto a la relación al ofrecer los cuidados, buscando estrategias para ofrecer un trato digno.
Programa para Mitigar el Estrés Laboral y Mejorar el Rendimiento del Personal Asistencial en la Dirección Regional de Salud Tumbes – 2022
Authors: Rodríguez Montes Sofía
Published: September 2023

La presente investigación se con la finalidad de Diseñar un programa de intervención sobre estrés laboral para mejorar el desempeño del personal asistencial, de la Dirección Regional de Salud Tumbes – 2022, Comprende un estúdio de tipo básica proyectiva, diseño no experimental, de corte transversal; la muestra se conformó por 221 trabajadores asistenciales de la Dirección Regional de Salud de Tumbes a quienes se les administró dos cuestionarios para recaudar información de las variables de estudio: estrés laboral y desempeño. Dentro de los resultados más resaltantes se logró identificar que el 75% y 24% presentaron niveles de estrés laboral medio y alto respectivamente, en relación al desempeño laboral resaltaron los niveles medio 55% y alto 45%. Dentro de la evidencia científica se obtuvo como principal resultado que el modelo de regresión logística original sólo es viable en la dimensión exactitud del desempeño, contrastando que existe influencia del estrés laboral en el desempeño en un 76.1 % Modelo: Exactitud del trabajador 2: Medio = -2.824 – 3.990 Me llevo bien con mis colegas =2: Casi nunca. Se propone un plan de intervención para disminuir el estrés laboral y optimizar la exactitud del desempeño del personal asistencial mejorando la atención en salud.
Peranan Pendidikan Agama Kristen Bagi Pemuda Kristen
Authors: Mangaronda James
Published: September 2023

Christian Religious Education for Christian youth is a learning process from a Christian perspective to instill Christian values and cultivate youth minds with the word of God through the guidance of the Holy Spirit with various learning experiences, so that young people experience progressive spiritual growth that is getting deeper and deeper in knowing God through devotion to God, to the church, to society, to the nation and state. With the role of Christian religious education for youth, every Christian youth will realize that they are young people who have a responsibility to take part in bulding the nation and answer every problem faced by the church, the environment and the nation. Christian youth are the next generation and the strength of the church and nation therefore youth must be provided with adequate Christian religious education so that the identity of a Christian youth will be formed according to the word of God where they can be role models. So, the role of Christian religious education for Christian youth is to bring Christian youth into the fellowship of faith with the Lord Jesus in whom they are counted as His congregation who acknowledge and glorify Him at all times and in every place, become instruments in His hands and become salt and light for the church, environment, nation and state.
Materi Pendidikan Agama Kristen Transformasi
Authors: Pusung Delly Maria
Published: September 2023

Christian Education always gives an important role in educating and shaping the students who receive the education. The presentation of Christian education materials is expected to be well prepared  in teaching. Christian Education Materials must be right on target and able to answer the needs of students. Christian Education materials must be presented by designing it first,  whether it still can be taught or it is need to be transformed. This research is referred to knowing the role of Christian education in developing the material in a transformational way. Not only the competence of the educators that is needed in delivering the material, but also to understand correctly what the Bible wants to teach through Christian education materials. The Factors that related to the need of transformational Christian education are seen from the low learning achievement of the students, behavior that deviates from moral standards and the inability to apply Christian values through  life and behavior of the students. This research is needed to encourage educational institutions and church institutions  to encourage every educator to not only prepare Christian education materials well, but also to transform Christian education materials according to the target, answer the need and can also be accepted at all levels. This research is needed to encourage Christian education to be able to answer problems in the world of Christian education.