bluuebunny/crossref_metadata_2025 huggingface dataset:
Impact of Lean and Fat Mass on Disease Activity and Function in Spondyloarthritis
Authors: Makhlouf Yasmine , Kaffel Dhia , Maatallah Kaouther , Ferjani Hanene , Abaza Nahaline , Hamdi Wafa
Published: April 2022

Background and Aims:

Changes in body mass composition, such as reduced lean and fat mass, can occur in a patient with rheumatic diseases. However, data about body composition in spondyloarthritis (SpA) showed conflicting results. The aim of the present study was to assess by DXA the distribution of lean and fat mass in SpA patients compared to healthy controls and to in-vestigate the association between body mass composition and disease characteristics.

Methods:

We conducted a cross-sectional case-control study including 50 SpA patients and 50 con-trols. Sociodemographic data, as well as disease characteristics, were assessed. Body composition measurements and biochemical and inflammatory serum markers were evaluated. Radiographic data (Bath Ankylosing Radiologic Index and the modified Stroke Ankylosing Spondylitis Spine Score) was also recorded.

Results:

No statistically significant correlation was found between the two groups regarding bone mineral density and body mass distribution. However, a lower weight was observed in the study group compared to the control group (p = 0.043). Male gender and younger age were associated with a higher lean mass (p = 0.05). C-reactive protein (CRP) level was positively correlated with lean mass (r = 0.38, p = 0.023). Similarly, BASFI was higher in patients with lower fat mass (r = -0.42, p = 0.024). A longer duration of NSAIDs intake was associated with a lower lean mass and a higher fat mass. However, no correlations were found between body mass composition and BASRI mSASSS scores as well as bone mineral density and calcium intake.

Conclusion:

Our findings suggest that younger age, male gender, and axial phenotype were associ-ated with higher lean mass.
Potential Role of Exercise in Regulating YAP and TAZ During Cardiomyocytes
Aging
Authors: Limyati Yenni , Sanjaya Ardo , Lucretia Teresa , Gunadi Julia Windi , Biben Vitriana , Jasaputra Diana Krisanti , Lesmana Ronny
Published: April 2022

Adaptation of cardiac muscle to regular exercise results in morphological and structural
changes known as physiological cardiac hypertrophy, to which the Hippo signaling pathway might
have contributed. Two major terminal effectors in the Hippo signaling pathway are Yes-associated
protein (YAP) and its homolog transcriptional coactivator with PDZ-binding motif (TAZ). The latest
studies have reported the role of YAP and TAZ in different life stages, such as in fetal, neonatal,
and adult hearts. Their regulation might involve several mechanisms and effectors. One of the
possible coregulators is exercise. Exercise plays a role in cardiomyocyte hypertrophic changes during
different stages of life, including in aged hearts. YAP/TAZ signaling pathway has a role in
physiological cardiac hypertrophy induced by exercise and is associated with cardiac remodelling.
Thus, it can be believed that exercise has roles in activating the signaling pathway of YAP and
TAZ in aged cardiomyocytes. However, the studies regarding the roles of YAP and TAZ during
cardiomyocyte aging are limited. The primary purpose of this review is to explore the response of
cardiovascular aging to exercise via signaling pathway of YAP and TAZ.
Foreign Body in the Cervical Oesophagus: A Case Report
Authors: Botti Cecilia , Giordano Davide , Iotti Valentina , Ghidini Angelo
Published: April 2022

Background:

Foreign bodies in the upper aerodigestive tract represent an uncommon cause
of visits to emergency departments. In the majority of cases, foreign bodies do not go beyond the pharynx.
They cause dyspnoea or pneumonia if they reach the tracheobronchial tree. If ingested, they will
pass spontaneously through the gastrointestinal canal in the majority of cases. Nevertheless, especially
in the case of sharp-pointed or large objects, the foreign bodies can stop in the oesophagus.
In case of dysphagia, stinging sensation and/or odynophagia occurring after eating a meal, a foreign
body in the upper aerodigestive tract should be suspected. If not clinically visible, imaging is required.

Case presentation:

A 72-year-old woman presented to the Emergency Department with pharyngodynia,
odynophagia, stinging, dysphagia, and sialorrhea for 12 hours. Her symptoms started after eating a
meal involving meat. The patient underwent a standard two-projection radiogram of the neck. The
antero-posterior projection radiogram was unremarkable. The lateral projection radiogram showed 16
millimetres in maximum length radiopaque foreign body within the cervical oesophagus. The patient
underwent transoral flexible oesophagoscopy under general anaesthesia, which resulted in successful
removal of the foreign body (bony fragment). Her symptoms improved rapidly after the procedure, and
the patient was discharged after 48 hours in good health.

Conclusion:

A foreign body in the cervical oesophagus may lead to visceral perforation. Once suspected,
every effort should be made to identify and remove the foreign body to avoid potentially catastrophic
consequences. In some cases, imaging could be necessary to detect the foreign body.
Chalcones and Flavones as Multifunctional Anticancer Agents- A
Comprehensive Review
Authors: Palanikarasu Pavithra , Surajambika Remya Ramachandran , Ramalakshmi Natarajan
Published: April 2022

Background:

Chalcone and flavone moieties play an important role in medicinal chemistry
for the development of potential therapeutic agents. These two derivatives serve a wide range
of applications in recent studies and are promising lead molecules for the synthesis of compounds
with vast therapeutic utility for many diseases, particularly for cancer therapy.

Objective:

The present review focused on the fact that chalcone and flavone derivatives possess an
interesting spectrum of anticancer activities and their representative mechanisms of action for antitumor
therapy. Chalcone and flavones have potential in vitro and in vivo anticancer activity on
multiple targets with different mechanisms, including topoisomerase inhibition, MDR channel
inhibition Targeting NF-kB pathway, Serine/threonine protein kinase inhibition, PRAP1 inhibition,
tubulin polymerase inhibition, Aromatase inhibition, cell cycle disruption, apoptosis inducing,
immunomodulatory and inflammation mediatory mechanism. The advantage of chalcone and flavone
scaffolds is their convenient synthetic methods and wide clinical potential.

Methods:

We have scrutinized and reviewed 60 research articles published in different databases in
recent years highlighting chalcones and flavones with different anticancer activities and evaluated
their binding interactions in docking studies and potency in in vitro studies. Substituted chalcones
and flavones with various heterocyclic nuclei and aliphatic and aromatic side chains are discussed.
A thorough investigation on the mechanism by which each flavone and chalcone exerted its
specific anticancer activity was done and is reviewed.

Results:

It was seen that research conducted on chalcones and flavones proved it as a privileged
structure with multifunctional anticancer activity. More exploration of these molecules will provide
newer cancer therapeutic agents with less toxicity.

Conclusion:

The review will be helpful for the wide variety of scientific community doing research
on these versatile molecules.
Identification of Potential of Drug-drug Interaction and its Affecting Factors:
A Cross-sectional Study Among Hospitalized Coronary Heart Disease
Patients
Authors: Rosmasari Reny , Esha Pramitha , Figueras Albert
Published: April 2022

Background:

Coronary Heart Disease (CHD) patients are at risk of suffering from drug interactions,
leading to a higher risk of mortality and morbidity among these patients. This study aims to
identify the potential drug-drug interactions (PDDIs) and CHD patients' related factors.

Methods:

A cross-sectional study was performed among the CHD patients to identify the PDDIs from
2014 to 2017 at a Secondary Hospital. The PDDIs were categorized according to the interaction
mechanism, onset, severity, and documentation.

Results:

Among 91 CHD patients, 151 PDDIs were identified consisting of pharmacokinetics mechanism
and delayed onset, 50.33%, and 83.44%, respectively. Furthermore, there was a correlation between
the number of PDDIs and the number of drugs (r = 0.496; p < 0.001).

Conclusion:

This study revealed that the more the drugs were prescribed to CHD patients, the more
the PDDIs risk would occur. The regular monitoring of the CHD patient’s prescriptions is noteworthy
to avoid the PDDIs.
Pattern of Adverse Drug Reactions among Pregnant Women and Pediatric
Patients in a Tertiary Care Hospital
Authors: Rani Neha
Published: April 2022

Background:

Adverse drug reactions (ADRs) among pregnant women and pediatric patients
are a significant public health concern. ADRs monitoring and documentation are considered
essential practices to decrease the chances of ADRs and ensure the safe use of drugs.

Objective:

Therefore, the study was designed to evaluate the pattern of adverse drug reactions
among pregnant women and pediatric patients in a tertiary care hospital.

Methods:

The study was conducted at Kalpana Chawla Government Medical College and Hospital,
Karnal, Haryana, for a period of 2 years. During this period, ADRs reported by the healthcare
professionals of gynecology and pediatric department to the ADRs monitoring centre of our institute
were included in the study.

Results:

Out of 54 total ADRs, 40 ADRs occurred among pregnant women, and 14 ADRs were reported
in pediatric patients. The majority of the ADRs were observed in the age group of 21-30
years (pregnant women) and 3-5 years (pediatric patients). Antibiotics were most commonly implicated
in ADRs among pregnant women (60%) and pediatric patients (79%). In our study, the dermatological
system was mostly affected among pregnant women and pediatric patients. Urticaria,
contact dermatitis, and erythematous rash were the most commonly reported ADRs among pregnant
women and pediatric patients.

Conclusion:

Over-prescribing and irrational use of antibiotics make these vulnerable populations
more susceptible to ADRs and antibiotic resistance. Therefore, there is a need to create awareness
among health care professionals regarding the spontaneous reporting of ADRs for ensuring drug
safety and reducing morbidity and mortality among pregnant women and pediatric patients.
Combined Use of Chitosan-PGLA Nerve Grafts and Bone Marrow Mononuclear
Cells to Repair a 50-mm-long Median Nerve Defect Combined
with an 80-mm-long Ulnar Nerve Defect in the Human Upper Arm
Authors: Gu Xiaokun , Yi Sheng , Deng Aidong , Liu Hong , Xu Lai , Gu Jianhui , Gu Xiaosong
Published: April 2022

Background:

Severe peripheral nerve injury, especially the long-distance peripheral nerve
defect, causes severe functional disability in patients. There is always a lack of effective repair methods
for clinic, and those in practice are associated with side effects. A case study was performed to observe
the regenerative outcomes of the surgical repair of long-distance peripheral nerve defects in the upper arm
with chitosan-poly(glycolide-co-lactide) (PGLA) nerve grafts combined with bone marrow mononuclear
cells (BMMCs).

Methods:

The right upper arm of a 29-year-old woman was injured, leaving a 50-mm-long median nerve
defect, an 80-mm-long ulnar nerve defect, and muscle and blood vessel disruptions. The nerve defects
were repaired by implanting BMMC-containing chitosan-PGLA nerve grafts on the 40th day after injury.
A series of functional assessments were carried out from 2 weeks to 66 months after surgical repair. Sensory
function was assessed by the pinprick test, two-point discrimination test and Semmes-Weinstein
monofilament test. Motor function was evaluated by the range of motion of the wrist joint and muscle
power. Autonomic function was monitored by laser-Doppler perfusion imaging (LDPI). Tissue morphology
was observed through ultrasonic investigations.

Results:

No adverse events, such as infection, allergy, or rejection, caused by the treatment were detected
during the follow-up period. Sensory and pinprick nociception in the affected thumb, index, and middle
fingers gradually restored at 6th month after surgery. The monofilament tactile sensation was 0.4 g in the
terminal finger pulp of the thumb and index finger, 2.0 g in the middle finger, and greater than 300 g in
the ring finger and little finger at the 66th month. Motor function recovery was detected at the 5th month
after surgery, when the muscle strength of the affected forearm flexors began to recover. At the 66th
month after surgery, the patient's forearm flexor strength was grade 4, with 80° of palmar flexion, 85° of
dorsal extension, 8° of radial deviation, 40° of ulnar deviation, 40° of anterior rotation, and 85° of posterior
rotation of the affected wrist. The patient could perform holding, picking up, and some other daily
activities with the affected hand. The patient's sweating function of the affected hand was close to the
level of the healthy hand. LDPI showed that the skin blood flow perfusion was significantly increased,
with perfusion similar to on the normal side in some areas. Neuromusculoskeletal ultrasonography
showed the presence of nerve structures.

Conclusions:

These results suggest that chitosan-PGLA nerve grafts combined with BMMCs could effectively
repair long-distance nerve defects and achieve good clinical results.
A Full-Dimensional ab initio Intermolecular Potential Energy Surface and
Dipole Moment Surfaces for H2O-Ar
Authors: Liu Qiong , Wang Junyan , Zhou Yanzi , Xie Daiqian
Published: April 2022

Background:

The H2O–Ar system has attracted significant interest in recent years because
it is an important model to study inelastic scattering between atoms and triatomic molecules.
A high-accuracy intermolecular potential energy surface (IPES) is the foundation for theoretical
study on molecular collision dynamics for H2O–Ar. In addition, dipole moment surfaces (DMSs) are
one of the prerequisites for spectral simulation.

Objective:

This study aimed to obtain a full-dimensional intermolecular potential energy surface and
dipole moment surfaces for the van der Waals complex H2O–Ar.

Methods:

In this study, ab initio energy points were computed at the frozen-core (FC) explicitly
correlated coupled-cluster [FC-CCSD(T)-F12a] level, with the augmented correlation-consistent
polarized valence quadruple-zeta basis set plus bond functions. The permutation invariant polynomial
neural network (PIP-NN) approach is adopted to fit the IPES, while the DMSs are constructed
at the MP2/AVTZ level and fitted by the NN approach.

Results:

With a root-mean-square-error (RMSE) of 0.284 cm-1, the IPES can accurately describe the
motion of the H2O–Ar complex between R = 4 and 20 a0 in the energy range up to 10000 cm-1. The
fitting errors of all the data points are 6.192 and 6.509 mDebye for the X and Z components, respectively.
The global minimum of -140.633 cm-1 has the plane geometry, while the dipole moment of
H2O–Ar is 1.853 Debye at the equilibrium structure.

Conclusion:

In summary, we report a full-dimensional intermolecular potential energy surface for
H2O–Ar. The IPES precisely reproduces CCSD(T)-F12a electronic energies with a large basis set.
The corresponding dipole moment surfaces have also been reported. In comparison with previous
work, the employment of the high-level ab initio method will make our IPES more reliable. Several
typical 2D contour plots of the IPES and DMSs are also shown. The argon atom has a weak effect
on the dipole moment of the H2O–Ar complex. The FORTRAN codes to generate 6D potentials and
dipole moments reported here are available on request from the authors.
Polymer Natural Fibre Composites and its Mechanical Characterization
Authors: Anbupalani M.S.
Published: April 2022

Increasing environmental concern and the dynamic market demand is a driving force for eco-friendly materials, therefore researchers focus on developing biodegradable materials for various applications. Bio- composites are one such eco-friendly material utilizing the advantages of polymer matrix and natural fibre reinforcement. Natural fibre composites are replacing environmentally harmful synthetic materials with better mechanical properties and they have potential applications in different fields like biomedical applications, construction materials, defence, automobiles etc., In addition, they are economically feasible and require low energy for production. Analysing the mechanical characteristics of natural fibre reinforced polymers are crucial to fine tune their utilization and processing techniques. This chapter aims to provide an overview of the mechanical characteristics of NFCs reinforced polymer composites and the details of milestones made with them.
Natural Fiber and Biodegradable Plastic Composite
Authors: Mathad M.
Published: April 2022

In today’s time, natural fibers are available abundantly and do possess properties such as biodegradability, light weight, good strength etc. due to which more studies are focused in order to develop a composite including natural fibers as their reinforcements. Bio-composites are considered versatile which have gained recognition in industrial material science domain. In this chapter, natural fibers of vegetable and fruit peels are considered as reinforcements and epoxy resin as the matrix to form a novel hybrid composite. The fibers considered in this chapter are onion, potato, carrot, lemon and sweet lime with epoxy resin as their matrix. These natural fibers are reinforced at 10%, 20% and 30% volume fractions. They are subjected to alkali treatment followed by developing the specimen. Then these specimens are subjected to tensile, density, flexural, water absorption rates and also microstructure characterization. Based on the properties obtained for the bio-composite, they are applied for a consumer product device and analysed using ANSYS software. Among all of the developed composites, epoxy lemon yields the optimum results.
Polymers in Tissue Engineering
Authors: Abdul Hamid Z.A.
Published: April 2022

This chapter presented the numerous types of polymer biomaterial scaffolds for tissue engineering. The different types of clinical applications including bone, cartilage, skin, space filling scaffolds, and adipose tissue regeneration are discussed. Their fabrication techniques; conventional and emerging additive manufacturing for fabrication of the 3D scaffolds are also presented. A focus of hydrogel as scaffolds is discussed in detail. Meanwhile, the common interaction between biomaterials and cells are introduced to ensure the polymer biomaterial scaffolds developed are biocompatible and non-toxic so that the rejection after the implantation could be prevented. The discussed information in this chapter is essential to be considered in any development of a scaffold as an implant for tissue engineering.
Polymers in Guided Bone Regeneration
Authors: Barros R.M.
Published: April 2022

In dental debilitating conditions, such as edentulism, the patient must have sufficient alveolar crest bone mass to guarantee the possibility of corrective interventions, such as implants. The decrease in bone tissue is caused by the body's natural reabsorption, which begins after tooth loss. Some surgical techniques could be used to solve this problem, such as guided bone regeneration. In this technique, a membrane developed with biomaterials is used, which aims to act as physical barrier to prevent the appearance of soft tissue and maintain the bone defect space, ensuring maximum regeneration. This membrane must be biocompatible, have specific rigidity to maintain the space, prevent the migration of epithelial cells and ensure the resorption time after bone tissue regeneration. This chapter will address the polymeric materials most used in the development of membranes for guided bone regeneration process, addressing their physicochemical characteristics, advantages, disadvantages, among other important aspects.
Julia Jopp et al. (Hg.): Ultima Philosophia
Authors: Brandner Felix
Published: April 2022

Rezension von Jopp, Julia/Martins, Ansgar/Trauer, Hanna Zoe/Witter, Kathrin (Hg.): Ultima Philosophia. Zur Transformation von Metaphysik nach Adorno. Berlin: Neofelis 2020.
Спектрально-кинетическое исследование новых гибридных фотохромных кумаринопиранов с обратимой модуляцией флуоресценции
Authors: Венидиктова О.В. , Горелик А.М. , Кошкин А.В. , Барачевский В.А.
Published: April 2022

Photochromic hybrid compounds based on coumarins with reversible fluorescence modulation have been synthesized for the first time. It was shown that UV irradiation leads to spectral and fluorescent changes due to the structure of the compounds.
Оценка бренстедовской кислотности протонных цеолитов с помощью VTIR-спектроскопии --- обзор текущих исследований
Authors: Arean C.O. , Delgado M.R.
Published: April 2022

Many industrial applications of protonic zeolites as solid-acid heterogeneous catalysts rely on the strength or their Brønsted acidity, which (together with zeolite topology) affects both, catalytic activity and selectivity. Therefore, the convenience to have an accurate (and simple) experimental technique for measuring Brønsted acid strength. The enthalpy change, ΔH0, corresponding to the hydrogen bonding interaction of a weak base (such as CO or dinitrogen) with their Brønsted acid [Si(OH)Al] hydroxyl groups should directly correlate with the zeolite acid strength. Nevertheless, because of simplicity, the bathochromic shift of the O–H stretching frequency, Δν(OH), is usually measured by IR spectroscopy at a low temperature, and correlated with acid strength, for ranking zeolite acidity. Herein the use of variable-temperature IR (VTIR) spectroscopy to determine simultaneously ΔH0 and Δν(OH) is demonstrated; followed by an abridged overview showing that direct correlation between Δν(OH) and Brønsted acid strength can be misleading when ranking zeolite acidity.
Квантово-химическое исследование изотопной изомерии СО, адсорбированного на цеолите Ni-USY
Authors: Баранов Д.А. , Крауклис И.В. , Цыганенко А.А.
Published: April 2022

By the method of density functional theory at the B3LYP/6-31+G(d,p) level, the phenomenon of isotopic
isomerism is investigated when two CO molecules of different isotopic composition bound to a nickel cation in NiUSY zeolite, occupying unequal positions, form two spectrally distinguishable types of dicarbonyls.
The calculation results show that linkage of molecules to the cation via oxygen atom is not realized, and the reason for the isomerism is the difference in the location of two nickel-bound molecules in the zeolite cage.
Плазмон-активированный фёрстеровский перенос энергии в молекулярных системах
Authors: Ибраев Н.Х. , Кучеренко М.Г. , Темирбаева Д.А. , Селиверстова Е.В.
Published: April 2022

To explain the experimentally observed effect of silver nanoparticles on the fluorescence of organic dyes and the nonradiative intermolecular transfer of electronic excitation energy in multilayer nanostructures, the previously proposed theoretical model of plasmon resonance in spherical nanoparticles of metals was used. The rates of radiative and nonradiative (FRET) processes in film structures with Ag nanoparticles were calculated for fluorescein and rhodamine B molecules, as well as for two-component systems fluorescein–nile red (NR) and rhodamine B–NR. A version of the model was used that takes into account the effect of NPs on FRET between molecules, the radiative decay of donor and acceptor molecules, and the energy transfer from the dye to plasmonic nanoparticles. The calculation of the UDA rate for pairs with different energy transfer efficiency showed a greater increase in the UDA parameter for the fluorescein–nile red pair than for the rhodamine B–nile red pair. Estimation of the fluorescence enhancement factor of donor and energy acceptor molecules and the rate of energy transfer from the dye to silver NPs showed their insignificant contribution to the formation of the resulting energy transfer efficiency enhancement in the presence of plasmonic NPs.
Влияние лазерной обработки на структуру и спектрально-люминисцентные свойства графеновых точек
Authors: Меньшова Е.П. , Селиверстова Е.В. , Ибраев Н.Х.
Published: April 2022

The structure and optical properties of nanodots based on graphene oxide (GO) obtained by ablation by laser radiation with different wavelengths were studied. It was shown that after laser ablation, the average lateral size of GO sheets decreases from 820±120 nm to 204±40 nm and 105±23 nm for samples prepared at λgen=355 and 532 nm, respectively. In this case, a change in the intensities of the 2D and G bands was observed, which indicates a decrease in the number of layers in the GO sheets. The optical density of GO dispersions and the intensity of fluorescence depend on the ablation conditions. After ablation, the optical density of GO increased by ~13% for samples obtained at λgen=355 nm and by 20% for λgen=532 nm. The fluorescence intensity of GO ablated at λgen=532 nm increased by 57% relative to the value registered for GO before ablation. For 355 nm, the fluorescence intensity was changed by 7%.
Особенности формирования спектров излучения двухчастичных наносистем в магнитном поле
Authors: Кучеренко М.Г. , Налбандян В.М. , Чмерева Т.М.
Published: April 2022

A spectral model of luminescence of the two-component exciton-activated semiconductor quantum dot (QD) – layered plasmon composite nanoparticle (CNP) with a dielectric core and a conductive shell in an external magnetic field is constructed, taking into account the inhomogeneity of the quasi-stationary electric field generated by QD in the CNP region, outside the framework of the approximation of the dipole polarizability of the CNP. The tensor formalism of describing the characteristics of the field in each of the layers of the CNP, as well as outside the CNP, is used. It is established that with a change in the structure of the nanocomposite, the parameters of its core or shell layer, the spectral response of the system to external magnetic field action changes. It is shown that the special form of the response is associated with the characteristic magnetic properties of the nanoparticle components acquired (under the action of the field).
Диэлектрический барьерный разряд в смеси He-Ne низкого давления. Спектроскопия послесвечения на переходах 2p-=SUP=-5-=/SUP=-5s-> 2p-=SUP=-5-=/SUP=-3p
Authors: Гордеев С.В. , Иванов В.А. , Скобло Ю.Э.
Published: April 2022

The results of a spectroscopic study and simulation of the processes of population and destruction of the levels of the 2p55s configuration of a neon atom in a decaying plasma of a low-frequency barrier discharge in a He-Ne mixture are presented. Experimental conditions: helium pressure 0.08-22 Torr, neon pressure ≤ 3mTorr, electron density less than 1011 cm-3. On the basis of data on the evolution of the populations of the 3si levels (in Paschen's notation) with a change in helium pressure, data on the rate constants of collisional processes that determine the kinetics of these levels in He-Ne plasma are obtained more accurate than those available in the literature.
Оптические свойства пленки линейно-цепочечного углерода, нанесенного на стальной образец
Authors: Акашев Л.А. , Махнев А.А. , Кочаков В.Д. , Владимиров А.П. , Дружинин А.В.
Published: April 2022

The optical constants of a linear chain carbon (LCC) film in the spectral range from 248 to 1100 nm (1.13–5.0 eV with a step of 0.1 eV) were obtained by the Beatty ellipsometric method, and its thickness was determined. The LCC film was deposited on a pre-mirror polished surface of a massive steel sample using the technology of pulsed carbon plasma with ion stimulation. It was found that in the measured range of the spectrum the refractive index of the film varies from 2.35 to 2.73, and the value of k varies from a value close to zero to 1.02. The effective film thickness is determined to be d = 92 ± 2 Angstrem. According to the type of conductivity, the LCC film is a dielectric (Eg = 4.1 eV). A simplified method for determining the band gap of nanosized semiconductor and dielectric films is proposed.
Влияние формы электродов на оптическое излучение плазмы кототкодугового разряда высокого давления в ксеноне
Authors: Тимофеев Н.А. , Сухомлинов В.С. , Мухараева И.Ю. , Скобло Ю.Э.
Published: April 2022

A short-arc high-pressure xenon discharge with a thoriated tungsten cathode (this is the reason for the presence of thorium atoms in the discharge gap) is investigated depending on the shape of the electrode surface. Based on the previously developed model, the electrokinetic characteristics and optical radiation of the plasma are calculated. It is shown that the shape of the electrode surface (the shape of the anode surface is considered in more detail) strongly affects, first of all, the electric field in the discharge gap, which, in turn, determines the plasma temperature and the spatial distributions of thorium atoms and charged particles (thorium and xenon ions). The resulting change in the electrokinetic characteristics significantly affects the optical radiation of the plasma, allowing the choice of the shape of the electrode surface to obtain the prevalence of radiation in the ultraviolet, visible, or infrared regions of the spectrum.
Use of a Paid Digital Marketing Campaign to Promote a Mobile Health App to Encourage Parent-Engaged Developmental Monitoring: Implementation Study (Preprint)
Authors: Arshanapally Suraj , Green Katie , Slaughter Karnesha , Muller Robert , Wheaton Demeika
Published: April 2022

BACKGROUND

The internet has become an increasingly popular medium for parents to obtain health information. More studies investigating the impact of paid digital marketing campaigns for parents on promoting children’s healthy development are needed.

OBJECTIVE

This study aims to explore the outcomes of a paid digital marketing campaign, which occurred from 2018 to 2020, to promote messages about parent-engaged developmental monitoring and ultimately direct parents to the Centers for Disease Control and Prevention’s (CDC’s) Milestone Tracker app, a mobile health (mHealth) app developed by the CDC.

METHODS

The paid digital marketing campaign occurred in 3 phases from 2018 to 2020. In each phase, 24 to 36 marketing messages, in English and Spanish, were created and disseminated using Google’s Universal App Campaigns and Facebook Ads Manager. Outcomes were measured using impressions, clicks, and install data. Return on investment was measured using click-through rate (CTR), cost per click, and cost per install metrics.

RESULTS

The Google-driven marketing messages garnered a total of 4,879,722 impressions (n=1,991,250, 40.81% for English and n=2,888,472, 59.19% for Spanish). The messages resulted in a total of 73,956 clicks (n=44,328, 59.94% for English and n=29,628, 40.06% for Spanish), with a total average CTR of 1.52% (2.22% for English and 1.03% for Spanish). From these clicks, there were 13,707 installs (n=9765, 71.24% for English and n=3942, 28.76% for Spanish) of the CDC’s Milestone Tracker app on Google Play Store. The total average cost per install was US $0.93 across all phases. The phase 3 headline “Track your child’s development” generated the highest CTR of 3.23% for both English and Spanish audiences. The Facebook-driven marketing messages garnered 2,434,320 impressions (n=1,612,934, 66.26% for English and n=821,386, 33.74% for Spanish). The messages resulted in 44,698 clicks (n=33,353, 74.62% for English and n=11,345, 25.38% for Spanish), with an average CTR of 1.84% (2.07% for English and 1.38% for Spanish). In all 3 phases, animated graphics generated the greatest number of clicks among both English and Spanish audiences on Facebook when compared with other types of images.

CONCLUSIONS

These paid digital marketing campaigns can increase targeted message exposure about parent-engaged developmental monitoring and direct a parent audience to an mHealth app. Digital marketing platforms provide helpful metrics that can be used to assess the reach, engagement, and cost-effectiveness of this effort. The results from this study suggest that paid digital marketing can be an effective strategy and can inform future digital marketing activities to promote mHealth apps targeting parents of young children.
Petrología y geoquímica de los Ortoneises aflorantes en los sectores central y este en el Macizo de Santander, Andes Colombianos
Authors: García-Ramírez Carlos Alberto , Rey-León Vanessa
Published: April 2022

Los Ortoneises aflorantes en los sectores central y este en el Macizo de Santander, consisten en intercalaciones de neis hornbléndico, neis biotítico y neis cuarzo–feldespático, predominando las dos primeras variedades. En estos ortoneises aparecen lentes esporádicos de anfibolita. Los ortoneises son el resultado del emplazamiento sintectónico de granitoides en rocas de los Esquistos del Silgará, durante el pico metamórfico de esta unidad metasedimentaria. Se observan algunas diferencias estructurales y composicionales en los ortoneises de los sectores central y este; la foliación más desarrollada, se observa en el sector central y la presencia de moscovita, al parecer se restringe solo al sector este. Las características geoquímicas evidencian que los ortoneises del sector central son de composición granítica, mientras que, para los ubicados en el sector este, su composición varía entre granito y granodiorita. Estos ortoneises fueron formados en una margen continental activa. El contenido de Tierras raras (REE) en los ortoneises evidencian tres patrones diferentes de comportamiento: 1) Los ortoneises félsicos muestran un paulatino empobrecimiento en las REE ligeras (La–Sm) y un empobrecimiento en REE pesadas (Eu–Lu); 2) ortoneises con clara anomalía negativa en Eu* y 3) La anfibolita está muy empobrecida en REE ligeras y va incrementando el contenido de REE pesadas con ausencia de anomalía en Eu*. Las condiciones P–T de metamorfismo para los ortoneises del sector central fueron: T = 690–770 °C y P = 0.53–0.85 GPa, mientras que, en el este, la temperatura obtenida varía entre 680 y 693 °C. La ocurrencia, relaciones de campo entre los ortoneises estudiados con unidades metasedimentarias y las edades, son muy similares a la de los ortoneises aflorantes a lo largo de los Andes y el sureste de México, evidenciando un arco magmático desarrollado a lo largo del protomargen de Gondwana Occidental.
Un conjunto de foraminíferos planctónicos del Aptiano tardío y framboides de pirita provenientes del “Otates Horizon”, Cerro Boludo, Hidalgo, México: implicaciones peleoecológicas y paleoambientales
Authors: Omaña Lourdes , López-Caballero Iriliana , Nuñez-Useche Fernando
Published: April 2022

Los depósitos carbonatados del Cretácico están ampliamente distribuidos a lo largo del cinturón de pliegues y cabalgaduras de la Sierra Madre Oriental desde el norte de Veracruz hasta el sur de Nuevo León. En la localidad de Cerro Boludo (Hidalgo) se colectaron muestras de margas  calcáreas  provenientes del “Otates Horizon” que incluye un conjunto de foraminíferos planctónicos bien conservados, compuesto por Globigerinelloides algerianus Cushman and ten Dam, 1948,  Globigerinelloides ferreolensis (Moullade, 1961), Globigerinelloides barri (Bolli, Loeblich and Tappan, 1957) Globigerinelloides aptiensis Longoria, 1974, Globigerinelloides blowi (Bolli, 1959), Hedbergella roblesae (Obregón de la Parra, 1959), H. occulta Longoria, 1974, H. luterbacheri Longoria, 1974, H. trochoidea Longoria, 1974, H. similis Longoria, 1974,  Pseudoplanomalina cheniourensis (Sigal, 1952)  and Schackoina  cenomana (Schacko, 1897). Los radiolarios también están presentes.

Con base en el conjunto de foraminíferos planctónicos fue reconocida la Zona de Rango Total Globigerinelloides algerianus de la parte temprana a media del Aptiano tardío. La reconstrucción paleoambiental deducida de la litología y de la asociación de foraminíferos sugiere un depósito pelágico abierto; además la presencia de framboides de pirita y materia orgánica indican condiciones de disminución de oxígeno en condiciones meso a eutróficas vinculadas probablemente al “evento anóxico del Aptiano tardío”.
Kojtspoo’kxë’n käjpxpo’kxï’n: ‘el descanso del habla’ en el mixe de Yacochi y Tamazulápam, Oaxaca
Authors: Martínez García Nereida Crystabel , Santiago Martínez Godofredo G.
Published: April 2022

En este artículo se analizan dos tipos de saludos en el mixe de Yacochi y de Tamazulápam, Oaxaca. Se trata de un primer acercamiento al estudio de los saludos desde la lingüística antropológica y los anclamos en la deixis y la actuación. Establecemos, desde un enfoque general sobre las teorías parentales, lo que llamamos «saludo» en español. En las dos variedades de mixe se reportan como kojtspoo’kxë’n y käjpx- po’kxï’n (Yacochi y Tamazulápam, respectivamente) y se interpretan como «el descanso del habla». Nuestra base de datos vincula lo que se expresa formalmente en los saludos y las condiciones extralingüísticas en las que ocurren. Planteamos que el saludo en las dos variedades de mixe es un género discursivo que sucede en un contexto multimodal.
Antropología ecológica: ¿mezcla de ciencias o déjà vu?
Authors: Nava-Bringas María Esther
Published: April 2022

El presente artículo narra las asombrosas similitudes que encontré entre una ciencia ambiental y una ciencia social. Como bióloga, estudiar antropología ecológica se convirtió en un déjà vu al descubrir que compartía los conceptos, intereses, percepciones e incluso esfuerzos de dicha disciplina, al estudiar aquellos fenómenos que nos permitirán construir un mundo mejor, mediante la educación para la sustentabilidad. Comprender que necesitamos unos de otros para la generación de nuevos saberes y compartir los existentes es el inicio de una visión real multidisciplinaria en la academia, lejos de vicios y egoísmos arraigados, que sólo han obstaculizado los esfuerzos hasta ahora realizados para alcanzar la aún utópica sustentabilidad de nuestro planeta.
Los servicios ambientales
Authors: Sánchez Esparza Nathalie Cristina
Published: April 2022

En esta infografía se dan a conocer qué son los servicios ambientales o ecosistémicos, cómo se clasifican y los beneficios que nos brindan.
Redes de interacciones para el estudio de la biodiversidad
Authors: del Val de Gortari Ek
Published: April 2022

La biodiversidad puede medirse de muchas formas, en este artículo se aborda la idea novedosa de utilizar las redes de interacción entre especies como un método para evaluarla. Las redes de interacción son una herramienta analítica que describe cómo se relacionan las especies en un ecosistema. Las redes de interacción nos permiten ir más allá de conocer a los participantes —las especies— de una puesta en escena —el ecosistema—. A través de ellas podemos saber el rol que está jugando cada participante y cómo se relacionan entre sí para que la puesta en escena pueda desarrollarse bien. Nos dan una fotografía de cómo se asocian las comunidades de especies en un lugar y tiempo determinado, y permiten evaluar el funcionamiento de un ecosistema. Con su estudio podemos identificar cuáles son las especies más importantes de un ecosistema, y esta información puede usarse para llevar a cabo acciones de restauración ambiental enfocándose en las especies centrales.
Diseño de un modelo numérico para la selección de pozos aptos a control de producción de agua
Authors: Ortega Ramirez Angie Tatiana , Marín Maldonado Diego Fernando , Ochoa Rodríguez Edgar Danilo
Published: April 2022

La investigación plasmada en este artículo tiene como objetivo presentar los resultados encontrados del diseño de un modelo numérico para la selección de pozos aptos al control de producción de agua en campos petroleros, con el fin paralelo de proponer una herramienta útil para las empresas del sector, debido a que permite establecer elementos e interacciones computacionales, programadas en visual Basic, que puede llegar a sugerir un concepto frente a la decisión de intervenir un pozo en fondo para el control hídrico, evaluando variables que afectan el proceso como lo son el BSW, la producción de agua, la relación agua - petróleo (RAP), rentabilidad de los proyectos de extracción, producción de fluido total, entre otras . Metodológicamente se lleva a cabo un análisis cualitativo y cuantitativo de una muestra representativa de pozos productores del campo Castilla (Colombia) que presentan producción de agua excesiva. Seguido de lo anterior, se ejecuta un análisis multicriterio tipo RIGIME apoyada con una matriz de expertos que lleva a jerarquizar según las variables que sufren mayor afectación al someter un pozo a un control de producción de agua, diseñando así el árbol de decisiones que permite seleccionar los pozos candidatos a dicho tratamiento basados en los rangos de propiedades petrofísicas, parámetros de rentabilidad del proyecto, el precio del barril de petróleo y el precio base del tratamiento. Finalmente se diseña el algoritmo de selección de pozos candidatos al control de producción de agua empleando Excel junto con su interfaz de desarrollador Visual Basic. Este modelo numérico se soporta en los modelos de las curvas de Chan, que permiten validar finalmente la validez de un pozo a ser sometido a tratamiento de control hídrico evaluando condiciones actuales de operación en pozo.
Water Motor and Water Quality Management Using Wifi and Blynk App
Authors: Ahmed Sahil , Khaleel Syed Abdul , Mubarak Mohammed , T Prof. Pushpa
Published: April 2022

Abstract: As population is bound to expand and water is being used at the utmost level of exploitation, groundwater level is diminishing rapidly, the planet might face water emergency soon. India is an agrarian country, farmers rely upon groundwater, however to their needs and satisfaction the predictability of rainfall and a suitable weather is quite flawed. So they are compelled to dig borewells to a prominent depth and conclusively rely upon it. Larger part of individuals living in metropolitan regions are subjected to borewells as there could be no other option for water. The progressions in innovation like Internet of Things, Cloud computing, Big Data, Internet facility can be utilized to plan a framework to screen these gigantic significant borewells to beat impediments like low quality drinking water, expanded labor prerequisites, irreversible harm caused to inadequately checked public motors. Plan and advancement of checking pH, turbidity in the water and observing motor temperature and momentum in borewells would be of extraordinary use. Additionally borewells are not midway checked prompting sudden breakdown of the motor. Borewells are the indispensable source of water for individuals in a large portion of the towns and practically all urban areas to achieve their essential prerequisites of a day. The framework has two sensors for to be specific turbidity and pH sensor to check water quality and temperature sensor and current sensor for motor monitoring, Ardunio model and , Single microcontroller chip, a wifi chip, MpH sensor, is utilized to send the information of different borewells to a solitary unit. Subsequently by this framework it is feasible to monitor n number of borewells in a municipality somewhat in one mobile application Keywords: M pH sensor, Turbidity sensor, Temperature sensor, Flow sensor, Ardurino model, WI-FI module.
ORGANIZATIONAL CULTURE, LEADERSHIP STYLE, WORK MOTIVATION, AND COMPENSATION ON PERFORMANCE OF FINANCE EMPLOYEES
Authors: Nelsari Malau Yois , Mayang Sari br Surbakti Ira , Tranita Hulu Asniat , Permata Sari Zendrato Widia
Published: April 2022

This study aims to analyze and determine the influence of culture, organization, work motivation, leadership style, and compensation on the performance of employees in the finance department in the Medan City Government. This study uses a method with a quantitative approach, namely by using primary data derived from questionnaires through Likert scale measurements. In this study, the population in question is the whole of the State Civil Apparatus in the finance department of the Medan City Government with a total population of 231 people. The sampling in this study used a purposive sampling technique which resulted in 68 people as respondents. The data analysis method in this study is multiple linear regression whose calculations are assisted by the IM SPSS version 26 software. The results of this study indicate that: (1) there is a significant influence on organizational culture, work motivation, leadership style, and compensation for the performance of employees in the department. viewed as a stimulant, (2) there is a good influence of organizational culture, work motivation, leadership style, and the provision of compensation to the performance of employees in the finance department which is seen partially.
ANALYSIS OF FACTORS AFFECTING PROFIT MANAGEMENT IN PROPERTY COMPANIES
Authors: Renofa Simanjuntak Desi , Nelsari Malau Yois , Kencana Wari Yuni
Published: April 2022

This study aims to determine the effect of Financei Leverage, Return on Assets, Net Profit Margin, Company Size on Management in Property Companies listed on Bursa Efek Indonesia  2017-2019. The data used is sourced from annual data via the www.idx.co.id website, which has been selected based on predetermined criteria. The population used in this company is all property companies, totaling 15 companies, using a purposive sample of 45 samples. This research is expected to become a science that can help further researchers and can also help students or the general public who need information from this research. From this research, it can be seen that Finance Leverage and partially old management have no influence on Return.On in Property Companies, while Net Profit Margin and Company Size partially affect Profit Management in Property Companies
ON THE LOSS OF STABILITY AND POSTCRITICAL EQUILIBRIUM OF COMPRESSED THIN-WALLED ANGLE BARS
Authors: Manuylov Gaik , Kosytsyn Sergey , Begichev Maxim
Published: April 2022

Angle bars in compression are quite common in building and transport structures. However, the peculiarities of their behavior during the loss of stability and in supercritical equilibrium have not been sufficiently studied even within the limits of elastic deformations. The paper shows solutions for the stability of symmetric and asymmetric rods with an angle profile. The development of post-critical deformations is shown. The features of the behavior of the rods, obeying the hypotheses of V.Z. Vlasov.
NUMERICAL MODELING OF CYCLOTRON FLOW ACCELERATION MODES IN AERODYNAMIC MODULES OF SOLAR AEROBARIC POWER PLANTS
Authors: Solovyev Alexander , Solovyev Dmitry , Shilova Liubov
Published: April 2022

When constructing solar aerobaric power plants, it is necessary to develop effective ways to accelerate convective flows initiated by the action of a high-temperature working fluid heated due to the concentration of solar radiation, accumulation of dissipated heat losses and the use of the greenhouse effect. As an option for organizing the flow in the aerodynamic module of the solar aerobaric power plants, article considered a diagram of the cyclotron acceleration of the flow during horizontal and vertical transfer of convective air currents formed in cells containing alternately located cold and hot side boundaries and differently heated upper and lower bases.