bluuebunny/crossref_metadata_2025 huggingface dataset:
Ethnopharmacology, phytochemistry and a new chemotaxonomic marker in Oldenlandia affinis (Roem. & Schult.) DC. Rubiaceae
Authors: Attah Francis Alfred , Mbanu Augustine E. , Chukwudulue Uche M. , Jonah Ugochukwu J. , Njinga Ngaitad S.
Published: April 2022

The proper documentation of ethnopharmacological application of widely used indigenous plants and their phytochemical analysis has positively impacted the drug discovery pipeline. Medicinal plants with potential commercial value and prospects for clinical application need to be properly identified and authenticated to avoid confusion, adulteration and substitution. Oldenlandia affinis (OA) has continued to attract scientific attention following the discovery of extremely stable cyclotides (circular peptides) that are not expressed in many investigated members of the contentious genus, Oldenlandia (synonym – Hedyotis); yet there is a lack of an elaborate review covering some broader aspects of its traditional uses, ethnopharmacology and phytochemistry of the species. More importantly, the age long but lingering confusion and taxonomic inconsistencies common to the Oldenlandia–Hedyotis debate could foster species mismatching, increase cases of misidentification, promote adulteration of OA and thereby limit its proper clinical application. Here, we aim to reveal the extent of indigenous use of and research on OA from 1960 till date, unveil knowledge gaps, document hitherto unknown traditional applications, ethnopharmacological uses, pharmacological properties, and reported phytochemical profile. In addition, to encourage proper selection and utilization of genuine crude drug, the chemotaxonomically important phytoconstituents of OA have been presented and the modern approach of chemophenetic study of OA proposed to resolve the lack of consensus in the taxonomy of OA as well as the morphologically and anatomically close members of the taxon. The abundant cyclotide expression in OA represents a new chemotaxonomic marker for its unambiguous identification, utilization and reproducibility of research findings on the species.
Extraction, isolation and characterization of secondary metabolites in the leaves of Morinda lucida from Oshiegbe in Ebonyi State
Authors: Nwokonkwo Dorathy Chinasa , Nwafor Emmanuel Ikechukwu
Published: April 2022

This research work assessed the extraction, isolation and characterization of secondary metabolites in the leaves of Morinda lucida. The leaves of the plant were collected from Oshiegbe in Ebonyi state. They were air-dried and pulverized for extraction. The extraction was done using petroleum ether, ethyl acetate and ethanol through sequential extraction method at room temperature. The extracts were concentrated and subjected to phytochemical analysis. The concentrated fraction was subjected to thin layer chromatography (TLC) and column chromatography to obtain the pure compounds. The isolated compounds were characterized using ultraviolet/visible spectroscopy (UV), Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance spectroscopy (NMR) and gas chromatography-mass spectroscopy (GC-MS) for their structural elucidation. The result of the work showed that the ethanol extract recorded the highest percentage yield of 5.36 while the petroleum ether extract recorded the least percentage yield of 0.61. The preliminary phytochemical screening of the extracts revealed the presence of alkaloids, saponins, tannins, terpenoids, flavonoids, steroids and glycosides in the leaves of the plants. The ethanol extract yielded four pure isolates (compounds) of R
f values: 0.93, 0.80, 0.86 and 0.72. The compounds were characterized as N-ethyl-N-nitroso-ethylmethanoate (1) bicyclo-[3,1,1]-2,6,6-trimethyl heptane-2,3-diol (2) dibutylphthalate (3) and 1,2-benzenedicarboxylic acid-butyl-2-methylpropyl ester (4) The spectral results and GC-MS fragmentation pattern agreed with the structures of the isolated compounds.
Synthesis, characterization, DFT and molecular docking studies of acetone O-((2,5-dichlorophenyl)sulfonyl) oxime
Authors: Korkmaz Adem , Rhyman Lydia , Ramasami Ponnadurai
Published: April 2022

Acetone O-((2,5-dichlorophenyl)sulfonyl) oxime was prepared from 2,5-dichlorophenylsulfonyl chloride and acetone oxime using triethylamine. The compound was characterized using 1H NMR and 13C NMR spectra. Molecular docking was performed with the compound and cholinesterase enzymes. The average affinity of the compound with the acetylcholinesterase and butyrylcholinesterase was calculated at −7.46 ± 0.14 and −6.70 ± 0.00 kcal/mol, respectively. The density functional theory method was also used to complement the experimental study. The findings of this work might be useful towards the applications of the compound studied.
Lead-free Sb-based polymer composite for γ-ray shielding purposes
Authors: Özkalaycı Fatih , Kaçal Mustafa Recep , Polat Hasan , Agar Osman , Almousa Nouf , Akman Ferdi
Published: April 2022

This study ailm was to fabricate and investigate the gamma photon shielding efficiency of antimony (Sb) doped polymer resin composites. The orthophthalic unsaturated polyester resin (C16O7H14) and antimony powder have been used as matrix and filler material, respectively. Gamma radiation shielding capacities of the polymer resin composites doped with 325 mesh sized-antimony particles from 5 to 20 wt% have been investigated. Experimental measurements of the samples have been obtained using an HPGe detector equipped with gamma spectrometer by 241 Am, 133 Ba, 57 Co, 22 Na, 137 Cs, 152 Eu, 54 Mn and 60 Co radioactive point sources varying from 59.5 to 1408.0 keV energies. To explore the gamma-ray attenuation features, linear attenuation coefficient (LAC), mass attenuation coefficient (MAC), half value layer (HVL), tenth value layer (TVL), mean free path (MFP), effective atomic number (Zeff), the radiation protection efficiency (RPE) were evaluated. According to the obtained results, it was found that Sb(20%) showed the superior radiation shielding capacity than the other samples. The measured data have been compared with those of WinXCOM, and they were found to be in a good agreement with each other.
A priority list of environmental health issues for Malaysia
Authors: Hashim Jamal Hisham , Hashim Zailina , Hod Rozita , Jalaludin Juliana , Mohamed Norlen , Karuppannan Subramaniam , Mazeli Ahmad Riadz , Sahrani Suhaily , Zulkaflli Zairul Ain
Published: April 2022

Objectives

Environmental risk factors contribute to 24% of the global burden of disease from all causes in disability-adjusted life years (DALYs), and to 23% of all global deaths. Malaysia being an advanced developing country, there is a need to prioritise environmental health issues to enable environmental health practitioners to focus on the most significant and urgent environmental health concerns.

Content

This project was undertaken by a Thematic Working Group on Environmental Health Experts (TWG 10) under the Malaysian National Environmental Health Action Plan. Sixteen pre-selected environmental health issues were presented to a two focus group discussions among 20 environmental health and related professionals who then scored each issue on its magnitude and severity scale.

The total of these scores generated a list of priority environmental health issues for Malaysia. Children environmental health came out as the environmental health issue of the highest priority.

Outlook

We hope that this list of priority environmental health issues will be used for prioritising academic and professional manpower training, research funding allocation and planning for intervention programmes by various stakeholders.
Increased effectiveness of the flotation separation of hornblende and magnesite by adding citric acid as depressant
Authors: Wang Enlei , Li Xiaoan , Dai Shujuan , Li Zhao , Zhao Tonglin , Song Baoxu , Han Baisui
Published: April 2022

The microflotation experiments were systematically carried out to investigate the inhibitory effect of citric acid (CA) on the flotation behavior of hornblende and magnesite. When the mixture consisted of sodium oleate and dodecyl phosphate was utilized as a mixed trapping reagent, CA could obviously inhibit the hornblende flotation but had little inhibitory effect on magnesite flotation. The desilication of magnesite flotation was accomplished when CA was employed as the hornblende inhibitor. Moreover, to reveal the adsorption mechanism of CA on the surfaces of hornblende and magnesite, a series of surface analysis techniques, such as X-ray photoelectron spectroscopy (XPS), zeta potential and Fourier transform infrared spectroscopy (FTIR), were conducted. Based on the zeta-potential and FTIR analyses, it is revealed that CA or CA together with collector (sodium oleate and dodecyl phosphate mixture) was applicable for the magnesite flotation tests. In the meanwhile, the introduced CA had obviously hindered the adsorption of sodium oleate and dodecyl phosphate mixtures on the hornblende surface, resulting in a significant difference in the flotation performance of hornblende and magnesite minerals. Moreover, XPS measurements revealed that the strong adsorption of CA on the hornblende surface can be ascribed to its affinity for the negative electron groups of CA and Ca ions.
President Biden at a Crossroads
Authors: Ofer Udi
Published: April 2022

President Joe Biden and the Democratic Party are at a crossroads on the issue of criminal justice reform. Facing both a backlash and continued bipartisan support for many reforms, President Biden has so far chosen not to make criminal justice reform a priority for the White House, despite running for president on a platform that made more than one hundred commitments on reform. While President Biden hesitates on the issue, advocates continue to push, building strong coalitions and forcing the administration to act. The public, including Republicans and Independents, also continues to understand the need for criminal justice reform, as indicated in recent polling, even as it hesitates on some of the bolder ideas for reform.

This article reviews the recent controversy over the issue of COVID-related transfers of people from prisons to home confinement, and the threat of their reimprisonment, to assess the broader question of which path will President Biden and Democrats choose: reform or backlash? Will the White House and Democrats build on the years of bipartisan support for criminal justice reform and push for popular policies, like drug law reform, as President Biden promised on the campaign trail? Or will it retreat from its campaign commitments in the face of a backlash? This article makes the case for the White House to provide leadership on criminal justice reform and recognize the strong bipartisan support for the issue, despite the challenges posed by a backlash.
Ticio Escobar
Authors: Benezra Karen
Published: April 2022

What theoretical and political exigencies framed the discussions of Latin American art in the 1970s, and what are the afterlives of those formations today? This Dialogues traces a constellation of curators and scholars that participated in the articulation of the field of modern and contemporary Latin American art, paying attention to experimentation and the ways coloniality haunt its development. Authors analyze episodes in the formation of the field, including a prominent international symposium, an audiovisual display as curatorial intervention, and the redefinition of popular art, as well as troubling the subordination of Black art. George Flaherty and Adele Nelson discuss the intensive questioning that constituted the Austin Symposium in 1975, drawing on the previously understudied audio recordings of the conference. Camila Maroja reconsiders the controversial audiovisual presentation by Ángel Kalenberg at the Tenth Paris Biennial (1977) with a view to the transnational cultural politics of the period. Karen Benezra offers that Ticio Escobar’s multidecade reconception of popular art grants space for art by communities historically excluded from both art and the mestizo nation, notably the Ishir Indigenous people of Paraguay. Eddie Chambers issues a challenge and reflects on the limited degree to which the contributions of African-descended artists have been recognized by historians of Latin American art, focusing on Brazil and Cuba. Together these texts propose that questioning and unresolvability can serve as both tools and reminders of the size and significance of the continued work required of the field of modern and contemporary Latin American art.
Molecular profiling reveals features of clinical immunity and immunosuppression in asymptomatic P. falciparum malaria
Authors: Studniberg Stephanie I , Ioannidis Lisa J , Utami Retno A S , Trianty Leily , Liao Yang , Abeysekera Waruni , Li‐Wai‐Suen Connie S N , Pietrzak Halina M , Healer Julie , Puspitasari Agatha M , Apriyanti Dwi , Coutrier Farah , Poespoprodjo Jeanne R , Kenangalem Enny , Andries Benediktus , Prayoga Pak , Sariyanti Novita , Smyth Gordon K , Cowman Alan F , Price Ric N , Noviyanti Rintis , Shi Wei , Garnham Alexandra L , Hansen Diana S
Published: April 2022

Clinical immunity to P. falciparum malaria is non‐sterilizing, with adults often experiencing asymptomatic infection. Historically, asymptomatic malaria has been viewed as beneficial and required to help maintain clinical immunity. Emerging views suggest that these infections are detrimental and constitute a parasite reservoir that perpetuates transmission. To define the impact of asymptomatic malaria, we pursued a systems approach integrating antibody responses, mass cytometry, and transcriptional profiling of individuals experiencing symptomatic and asymptomatic P. falciparum infection. Defined populations of classical and atypical memory B cells and a TH2 cell bias were associated with reduced risk of clinical malaria. Despite these protective responses, asymptomatic malaria featured an immunosuppressive transcriptional signature with upregulation of pathways involved in the inhibition of T‐cell function, and CTLA‐4 as a predicted regulator in these processes. As proof of concept, we demonstrated a role for CTLA‐4 in the development of asymptomatic parasitemia in infection models. The results suggest that asymptomatic malaria is not innocuous and might not support the induction of immune processes to fully control parasitemia or efficiently respond to malaria vaccines.
Corinnavirus, Zetapedro y Voxmitivo: reconocimiento e interpretación de algunos cruces deonomásticos
Authors: Moreno Siles José Antonio
Published: April 2022

En este artículo se analizan, con la ayuda del aparato teórico de la lingüística cognitiva, unas muestras de cruce deonomástico, lo que supone una contribución novedosa a la formación de palabras en español y a la deonomástica. La conclusión que se obtiene es que, aunque los cruces deonomásticos se crean a partir de esquemas consolidados en la lengua, su procesamiento es altamente dependiente de la información discursiva y contextual en la que aparece cada muestra. Por tanto, se propone que el estudio del cruce deonomástico abandone el uso de muestras aisladas y descontextualizadas.
ДЖЕРЕЛА ФІНАНСУВАННЯ ВЕНЧУРНИХ СТАРТАПІВ В УМОВАХ COVID-19
Authors: ДИБА Михайло , ГЕРНЕГО Юлія
Published: April 2022

Експертні дослідження свідчать, що ускладнення епідеміологічної ситуації у світі, посилення наслідків кризи і карантинних обмежень призводять до появи низки додаткових проблем для бізнесу. Зокрема, найбільш вразливими до проявів пандемії виявилися венчурні стартапи, адже криза COVID-19 заклала основу для зниження купівельної спроможності споживачів, посилення труднощів у частині постачання сировини і ресурсів через карантинні обмеження.
Незважаючи на розширення можливостей венчурного бізнесу в Україні, фінансова підтримка венчурних стартапів усе ще залишається досить новим напрямом. Окремі аналітичні дослідження підтверджують збільшення інвестицій у розвиток венчурних стартапів. У структурі джерел фінансування вітчизняних стартапів експерти Aventures Capital відзначають посилення ролі венчурних фондів. Зокрема, у вітчизняній екосистемі з’явилася низка нових фондів, які зайняли позиції найбільш активних інвесторів, а саме Adventure Labs, Pragmatech Ventures, Bee Ventures.
У свою чергу, як в Україні, так і у світі в цілому зростає потреба в залученні фінансових ресурсів для підтримки венчурних стартапів з використанням широкого спектра джерел в умовах посилення коронакризи. Обґрунтовано джерела фінансування венчурних стартапів з урахуванням негативних наслідків кризи COVID-19. Оцінено тенденції фінансування венчурних стартапів у країнах ОЕСР, що дозволило дійти висновку стосовно збереження доцільності їх фінансування під час коронакризи. Наведено характеристики найбільших інвестицій у венчурні стартапи в Україні у 2020 р. Обґрунтовано ключові характеристики і переваги бутстрепінгу для розвитку венчурних стартапів з огляду на можливі ризики такої форми підтримки стартапів в умовах кризи COVID-19. Оцінено потенціал і ризики венчурного і грантового фінансування в умовах коронакризи. Досліджено потенціал і ризики залучення ресурсів на краудфандингових платформах з метою підтримки венчурних стартапів.
ANALISIS FAKTOR INTERNAL DAN EKSTERNAL YANG MEMPENGARUHI PEMBIAYAAN MURABAHAH PERBANKAN SYARIAH
Authors: Nuzula Indana Mutiara , Marpudin Ade
Published: April 2022

Penelitian ini bertujuan untuk melihat bagaimana pengaruh sektor internal dan sektor eksternal terhadap pembiayaan murabahah  perbankan syariah tahun 2007 sampai 2013. Dana pihak ketiga dan margin keuntungan merupakan faktor internalnya serta produk domestik bruto adalah faktor eksternal sebagai variabel independen dalam penelitian. Variabel dependen yang digunakan dalam penelitian ini adalah pembiayaan murabahah. Penelitian ini menggunakan metode analisis kuantitatif dengan studi kasus pada perbankan syariah di Indonesia. Sumber data dalam penelitian ini adalah data sekunder. Pengumpulan data dilakukan melalui studi pustaka yang diperoleh dari Badan Pusat Statistik (BPS) dan Otoritas Jasa Keuangan (OJK) melalui internet. Teknik analisis data yang digunakan yaitu analisis regresi berganda. Hasil penelitian menunjukkan bahwa pembiayaan murabahah  mampu dijelaskan oleh dana pihak ketiga, margin keuntungan, dan produk domestik bruto sebesar 99,61%. Selanjutnya secara simultan dana pihak ketiga, margin keuntungan, dan produk domestik bruto berpengaruh signifikan terhadap pembiayaan  murabahah.  Namun  secara  parsial,  hasil  statistik  menunjukkan bahwa, pertama, dana pihak ketiga mempunyai pengaruh yang signifikan dan berkorelasi positif terhadap pembiayaan murabahah. Kedua, margin keuntungan tidak mempunyai pengaruh yang siginifikan terhadap pembiayaan murabahah. Ketiga, produk domestik bruto mempunyai pengaruh yang signifikan dan berkorelasi positif terhadap pembiayaan murabahah.Kata Kunci : Pembiayaan murabahah, Dana Pihak Ketiga; Margin, PDB
Mitigating Pediatric Inpatient Aggression: A Quality Improvement Initiative
Authors: Keller Amy R , Kanaley Rebecca L , Starr Taylor , Strollo Bonnie , Scharf Michael , Massachi Sasha , Angell Luke , Clough C. Denise , Schriefer Jan
Published: April 2022

BACKGROUND

Patient aggression in the health care workplace has increased significantly, and the impact of workplace violence can be profound, including psychological trauma and lost productivity. We suspect these safety events are often unreported, leading to missed opportunities to design interventions to reduce harm. The primary aim of the interdisciplinary quality improvement team was to increase staff reporting of safety events utilizing our event reporting system related to the care of verbally and/or physically aggressive pediatric patients by 10% over a 12-month period.

METHODS

An interdisciplinary quality improvement team addressed existing gaps in the care of pediatric inpatients with escalating behavior. Interventions included a survey of staff knowledge, use of the care guideline for management, updates to the electronic medical record, patient aggression screening tool, an electronic order set, and an online education module. The primary outcome measure was the number of reported staff safety events related to the care of aggressive patients. Compliance with the use of the pediatric aggression risk screening tool was tracked as a process measure.

RESULTS

The reporting of safety events related to the care of aggressive patients increased from just <1.0 events per 1000 patient days to 3.0 with special cause variation observed on a statistical process control chart. The compliance with the use of the pediatric aggression risk screening tool improved during the time of the project, nearing 90%.

CONCLUSIONS

A variety of interventions aimed to address pediatric inpatient aggression can improve the reporting of events related to workplace violence and foster a culture of employee safety.
A new species of Lepanthes (Pleurothallidinae) from the north of the Central Andes of Colombia
Authors: Vieira-Uribe Sebastián , Moreno Juan Sebastián
Published: April 2022

A new Lepanthes species from the northern end of the Central Andes of Colombia is described, illustrated, and compared with morphologically similar species. Lepanthes wakemaniae is most similar to L. caesariata but is easily distinguished by its petals with oblong to ovate upper lobes and triangular lower lobes; semi-ovate lip blades, with their inner margins touching above the column; the appendix ligulate and pubescent, and a column with an expanded, orbicular stigma.
Gaussian Volterra processes with power-type kernels. Part I
Authors: Mishura Yuliya , Shklyar Sergiy
Published: April 2022

The stochastic process of the form

\[ {X_{t}}={\int _{0}^{t}}{s^{\alpha }}\left({\int _{s}^{t}}{u^{\beta }}{(u-s)^{\gamma }}\hspace{0.1667em}du\right)\hspace{0.1667em}d{W_{s}}\]

is considered, where W is a standard Wiener process, $\alpha >-\frac{1}{2}$, $\gamma >-1$, and $\alpha +\beta +\gamma >-\frac{3}{2}$. It is proved that the process X is well-defined and continuous. The asymptotic properties of the variances and bounds for the variances of the increments of the process X are studied. It is also proved that the process X satisfies the single-point Hölder condition up to order $\alpha +\beta +\gamma +\frac{3}{2}$ at point 0, the “interval” Hölder condition up to order $\min \big(\gamma +\frac{3}{2},\hspace{0.2222em}1\big)$ on the interval $[{t_{0}},T]$ (where $0<{t_{0}}<T$), and the Hölder condition up to order $\min \big(\alpha +\beta +\gamma +\frac{3}{2},\hspace{0.2778em}\gamma +\frac{3}{2},\hspace{0.2778em}1\big)$ on the entire interval $[0,T]$.
Syberiada, czyli polska golgota na Wschodzie. Historyczna pamięć społeczna elementem wychowania patriotycznego
Authors:   Dr hab., Tarnowska Szkoła Wyższa, Polska, Niedojadło Andrzej
Published: April 2022

It has been 102 years since Poland regained independence in 1918 and 82 years since the outbreak of World War II. This article, being devoted to the situation of Poles deported deep into the USSR, their martyrdom and even the Holocaust (it was better for the Soviets to destroy them through hard work, not by shooting, saving ammunition), inclines us to reflect on the issues of patriotism, national identity and the issue of security and defense of the country today. The problems discussed here are historically encompassed within the time period of 1939–1943, i.e. the most difficult time for Poles living in the USSR. Let it be a warning to Polish teachers, parents and those who govern the Polish state against a repetition of the described situation. Currently, young people should be educated not only in the spirit of tolerance and respect for other nations, but with the defense of the Polish raison d’état in mind. An important element of education is teaching young generations of Poles to draw conclusions from the past. You cannot live after failures according to the principle that “it’s easy to be wise after the event”. Teaching respect for one’s own freedom, democracy, free elections and opposing any nascent totalitarianism. The article allows to learn about the dramatic fate of Polish exiles in Siberia, evokes them and records their tragedy permanently in the memory of people (generations). It aims at developing the ability to think objectively and assess the causes that led to the martyrdom of Poles in the USSR. It also hopes to influence the adoption of the desired values and attitudes towards current political events in the world.
Doskonalenie zawodowe nauczycieli jako odpowiedź na wyzwania współczesnej edukacji. Z doświadczeń Powiatowego Centrum Doskonalenia Zawodowego Nauczycieli w Puławach
Authors:   Dr, Powiatowe Centrum Doskonalenia Nauczycieli w Puławach, Polska, Baracz Anna
Published: April 2022

The article attempts to analyse the contemporary conditions and requirements for the teaching profession. The teacher training system and the elements that constitute this system in Poland are discussed in general. The challenges faced by the contemporary educator are shown. The specificity of teachers’ work in terms of socio-economic changes and the need for continuous improvement are emphasised. An analysis of research in the area of educational needs of teachers was carried out in the context of the functioning of the public teacher training institution, which allowed to indicate the tendencies and preferences of teachers in the area of professional development.
Edukacja zdalna w opiniach młodzieży
Authors:   Dr, Uniwersytet Śląski w Katowicach, Polska, Bobik Bogumiła
Published: April 2022

The aim of the article is to present the opinions of students from older grades of primary school (grades V–VIII) as well as secondary school students on various aspects of remote education, such as: its organization, objective and subjective difficulties declared by students, support from the school, family and peers. A diagnostic survey and a questionnaire technique were used for the study. The research was conducted online among students from Gliwice schools, as part of the cooperation between the University of Silesia and the local community. The collected empirical material reveals the students’ opinions on remote education. Its advantages include: ease of use of digital tools and support from parents and teachers. Among the negative sides of online learning, they mention: difficulties with focusing attention, the necessity to organize one’s own work and self-discipline, decreased involvement, negative emotions (stress, nervousness, fatigue, fear of failing exams), lack of direct contact with peers. Overall, the students assessed the quality of remote education as worse compared to traditional education. The conclusions from the research became the basis for formulating recommendations for the improvement of the quality of education in similar situations.
Tenuipalpus Donnadieu, 1875 and Brevipalpus Donnadieu, 1775 in cultivation of orchid Dendrobium phalaenopsis Fitzg
Authors: Silva Ana Catia Santos da , Carvalho Carlos Alfredo Lopes de , Machado Cerilene Santiago , Silva Edmilson Santos , Silva Lídia Rafaele Almeida da , Alves Rogério Marcos de Oliveira , Sodré Geni da Silva
Published: April 2022

ABSTRACT: The transit of infested plants may favor the introduction of herbivores into pest-free regions. In this study, we reported the occurrence of pest mites in Dendrobium phalaenopsis Fitzg. Mites were collected from orchid leaves with lesions. We identified Brevipalpus californicus (Banks, 1904) (sensu latu), Brevipalpus yothersi Baker, 1949 and Tenuipalpus orchidofilo Moraes & Freire, 2001 (Tenuipalpidae). These species had not been registered in D. phalaenopsis. This study reinforces the importance of adequate phytosanitary care for orchid cultivation, since these mites can infest other cultivated plants and damage orchids.
Free-feeding organisms and galling insects (Hymenoptera) interactions on Caryocar brasiliense (Malpighiales: Caryocaraceae) trees, a savanna plant from Brazil
Authors: Leite G. L. D. , Soares M. A. , Veloso R. V. S. , Silva L. F. , Guanabens P. F. S. , Munhoz E. J. M. , Pereira W. R. , Silva R. S. , Fernandes G. W. , Serrão J. E. , Zanuncio J. C.
Published: April 2022

Abstract Galling insects are abundant in nature, found in many ecosystems globally, with species attacking plants of economic importance. We studied the effects of free-feeding organisms on the abundance of galling insects on Caryocar brasiliense (Caryocaraceae) trees in the Brazilian Cerrado (Savanna). Percentage of defoliation and the number of phytophagous mites or number of phytophagous Hemiptera correlated negatively with percentage of galled leaves and the parasitoid Eurytoma sp. (Hymenoptera: Eurytomidae) adults, respectively. Percentage of galled leaves and the numbers of Eurytoma sp. adults and phytophagous mites correlated positively with spiders. Numbers of mites and Hemiptera phytophagous correlated positively with those of lady beetles and Sycophila sp. (Hymenoptera: Eurytomidae), respectively. The number of Ablerus magistretti Blanchard (Hymenoptera: Aphelinidae) adults correlated negatively with Sycophila sp. The number of Agistemus sp. (Acari: Stigmaeidae) correlated, negatively and positively, with those of lady beetles and phytophagous mites, respectively. Free-feeding herbivores affected the presence of galling insects (Hymenoptera) on C. brasiliense trees, competing for food and space. The same was observed between two parasitoids of Eurytoma sp. galling insect, which can reduce the natural biological control of this pest.
Sports participation among Brazilian adolescents and children: systematic review
Authors: Pereira Fernando Borges , Oliveira Caroline Beatriz Santos , Marques João Vitor Gonçalves , Langkamer Marcos Filipe Bueno , Ferreira Matheus Ivan Marques , Fusrtenau Silvana Carolina , Carvalho Leyla Regis de Meneses Sousa , Melo Gislane Ferreira de , Ferrari Elisa Pinheiro
Published: April 2022

Abstract The aim of this study is to describe the prevalence of sports participation in Brazilian children and adolescents through a systematic literature review. A search was carried out in the following electronic databases: MEDLINE, WEB OF SCIENCE, BIREME, SCIELO, and SCOPUS for manuscripts published until 2020, combining the keywords: “children”, “adolescents”, “prevalence”, and “sports participation”, in Portuguese and English. Twenty-six articles published between 2003 and 2020 were included in the review, with the aim of estimating the prevalence of participation in organized sports in Brazilian children and adolescents. Considering the regions where the studies were carried out, the majority were developed in the south (57.7%; n=15), followed by the southeast (19.2%; n=05), and northeast (15.4%; n=04), in addition to 7.7% (n=02) in all regions of the country. The data showed prevalence of sports participation ranging from 15.0% to 73.2% (mean of 44.8%) among children and adolescents, being higher in males (63.1%). From the results found, the need to develop public policies is evident, in order to favor adherence and maintenance of young people to sports practice, especially among those of the female sex.
Nursing training and retraining on cardiopulmonary resuscitation: a theoretical-practical intervention
Authors: Araujo Nyagra Ribeiro de , Araújo Raul Amaral de , Moretti Miguel Antonio , Chagas Antonio Carlos Palandri
Published: April 2022

ABSTRACT Objective: To analyze the retention of knowledge and skills of nursing professionals following training and retraining on cardiopulmonary resuscitation. Method: This is an intervention, prospective, and analytical study in which 56 nursing professionals received theoretical and practical training in in-service cardiopulmonary resuscitation. Nine months after the first training (T1), these professionals participated in a retraining (T2). They were followed up for 18 months. The linear trend of knowledge and skills in the period following training was calculated and the Wilcoxon test was applied. Results: Interventions increased the knowledge and skills of professionals significantly; however, in the subsequent period, skills decreased. Despite this, after a period of nine months, they were still higher than those identified before the study. There was a reduction of 18.2% in knowledge in the theoretical test after T1 vs 13.0% after T2 (p < 0.01) and a reduction of 7.6% in skills on the practical test after T1 vs 5.3% after T2 (p < 0.01). Conclusion: Nurses were able to retain more knowledge and skills on cardiopulmonary resuscitation after retraining, which stresses the importance of regular training and continuing education in health.
ELABORATION AND VALIDATION OF A TERMINOLOGY SUBSET FOR NEWBORNS WITH CENTRAL VENOUS CATHETERS
Authors: Prado Nanete Caroline da Costa , Lima Dhyanine Morais de , Silva Ana Beatriz Pereira da , Mercês Bruna Maria Oliveira , Menezes Harlon França de , Silva Richardson Augusto Rosendo da
Published: April 2022

ABSTRACT Objective: to elaborate and validate the content of a terminology subset of the International Classification for Nursing Practice, in light of Betty Neuman's theoretical model, for newborns with a Peripherally Inserted Central Catheter. Method: a methodological study carried out according to the guidelines of the Brazilian method for developing International Classification for Nursing Practice terminology subsets, through the following stages: 1) Identification of clinical findings relevant to the Nursing practice; 2) Cross-mapping of the findings identified with the International Classification for Nursing Practice terms, version 2019/2020; 3) Elaboration of the Nursing diagnoses, outcomes and interventions statements, based on Betty Neuman's theoretical model; 4) Validation of the statements' content by expert nurses, using the Delphi Technique in two rounds. The Content Validity Index was used for data analysis, where the statements with Content Validity Index values ≥ 0.80 were validated. Results: 86 clinical findings were identified, allowing for the development and validation of a terminology subset of the International Classification for Nursing Practice, composed of 31 diagnoses/outcomes, categorized according to the levels of intra-personal (3.03%), inter-personal (3.03%) and extra-personal (93.93%) stressors, as well as of 154 Nursing interventions. Conclusion: the elaboration and validation of a terminology subset of the International Classification for Nursing Practice for newborns with a Peripherally Inserted Central Catheter offers support for better targeted provision of care and for quality assistance.
Construção e validação de gerontecnologias cuidativo-educacionais: revisão integrativa
Authors: Rodrigues Vitória Eduarda Silva , Oliveira Francisco Gerlai Lima , Machado Ana Larissa Gomes , Beleza Cinara Maria Feitosa , Pereira Francisco Gilberto Fernandes
Published: April 2022

Resumo Objetivo identificar na literatura como as gerontecnologias cuidativo-educacionais (GTEC) têm sido construídas e validadas, e propor recomendações para o seu desenvolvimento. Método revisão integrativa da literatura realizada nas bases de dados Web of Science, LILACS, CINAHL, BDENF, MEDLINE e SciELO seguindo a recomendação Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Selecionaram-se estudos com os objetivos de construir e/ou validar gerontecnologias disponíveis na íntegra. Para extração dos dados, utilizou-se instrumento contendo variáveis acerca do nível de evidência dos estudos, ano de publicação e país de origem, objetivos, tipo de gerontecnologia desenvolvida e métodos de construção e validação. Resultados foram analisados 17 estudos. O ano de 2019 obteve maior número de publicações sobre a temática, sendo a maioria proveniente do Brasil. Evidenciou-se o desenvolvimento das gerontecnologias materiais, representadas por cartilhas, folhetos, manuais, jogos, softwares e materiais multimídia. Em relação ao método de construção das gerontecnologias adotado nos estudos destacaram-se diagnóstico situacional por meio de entrevistas, diálogos e escalas, e revisões da literatura acerca das temáticas. Na maioria dos estudos a validação foi realizada junto às pessoas idosas e, em alguns artigos, realizou-se a validação também com especialistas. Conclusão constatou-se que o processo de desenvolvimento de GTEC é recente e requer aprimoramento quanto à etapa de validação, a qual nem sempre é realizada pelos pesquisadores. Com relação às recomendações para o seu desenvolvimento, destacam-se o uso da linguagem acessível aos idosos e a associação de conhecimentos teóricos e práticos.
Modos de fabricar o corpo nas estearias: estudo arqueológico das estatuetas dos povos palafíticos do Maranhão
Authors: Navarro Alexandre Guida
Published: April 2022

Resumo As estatuetas são esculturas humanas, de animais ou seres híbridos de dimensões reduzidas e confeccionadas em osso, cerâmica, marfim ou pedra. Este artigo faz uma revisão dos modos de fabricar o corpo na literatura arqueológica amazônica e apresenta as estatuetas cerâmicas inéditas das estearias do Maranhão. A classificação tecno-tipológica dos conjuntos e as formas em que estes corpos foram figurados revelam um modo próprio e o local de fabricação dos corpos. Alguns elementos iconográficos compartilhados com os povos da fase Marajoara evidenciam fluxos estilísticos de interação social entre grupos do baixo Amazonas e do estuário maranhense. O propósito da confecção destes artefatos parece remeter tanto a seres humanos individualizados, a mulheres que participaram de rituais de puberdade, a figuração trasmutacional de corpos que incidem sobre os aspectos animistas e perspectivistas das ontologias ameríndias amazônicas, como também ao xamanismo e aos animais que auxiliaram os xamãs em sua comunicação com os diversos mundos tangíveis.
Relationships between take-off speed and performance in F-44 and F-46 paralympic discus throwers
Authors: Banja Fernandes Túlio Luiz , Oliveira Saulo Fernandes Melo de , Oliveira José Igor Vasconcelos de , Martins Felipe José Aidar , Ramos Júnior Valdir Rodrigues , Costa Manoel da Cunha , Tashiro Tetsuo
Published: April 2022

ABSTRACT This study aimed to analyze discus throwing in Paralympic athletes from two functional classes (FCs). Seven athletes from two classes F-44 (N=4) and F-46 (N=3) performed three throws each during a regional competition and were evaluated through 3D kinemetry. The assessed athletes presented a similar throwing technique, with a preparation movement opposite to the throw preceding the shot. Class F-44 showed a weak correlation between take-off speed and range (r= 0.15; p>0.05). F-46 showed a strong correlation between take-off speed and range (r=0.77; p=0.014). We conclude that athletes from the assessed FCs present important differences in terms of performance.
Technological Innovations and Firm Internationalisation
Authors: ÖZTÜRK DANIŞMAN Gamze
Published: April 2022

This paper explores the relevance of technological innovations for the internationalisation of manufacturing firms. It differentiates between two technological innovations: eco-innovations and generic-technological innovations (i.e., intelligent manufacturing). By pooling the Flash Eurobarometer-415 and -433 surveys, we use a broad firm-level sample of 4954 European and non-European (the US and Switzerland) manufacturing firms. Appling the Heckman selection model, the findings indicate that eco-innovations positively affect the decision of the firms to internationalise whilst showing no significant impact on the level of international operations. On the other hand, generic-technological innovations positively affect both the decision and the level of global operations.
Formation of a solvate of manganese(III) acetylacetonate with chloroform
Authors: Зломанов Владимир Павлович , Эшмаков Родион Сергеевич , Пролубщиков Игорь Владиславович
Published: April 2022

Metal acetylacetonates are coordination compounds consisting of the acetylacetonate anion (CH3COCHCOCH3, indicated as acac) and metal ions. Typically, both oxygen atoms of the anion bind with the metal and form a six-membered chelate ring. The simplest complexes have the formulas M(acac)3 and M(acac)2. Many complexes are soluble in organic solvents, and such solutions are used for the synthesis of catalysts. The processes of formation of solvates of acetylacetonates of various metals have not been studied properly. It should be noted that the determination of the composition and properties of solvates is important for understanding the peculiarities of the extraction processes of metal acetylacetonates.Manganese(III) acetylacetonate Mn(acac)3, for example, is also widely used. The recrystallisation of the complex is most commonly conducted from solutions in chloroform, and in this case, the corresponding solvates may be formed, which can affect the structure and properties of Mn(acac)3. There are no data on the synthesis conditions and the composition of the solvates of manganese(III) acetylacetonate with chloroform. Therefore, the purpose of this work is to study the possibilities of its formation and to establish the composition of such solvates.           The formation of the solvate in solution was established using Fourier IR spectroscopy by the shift of the absorption band of the C-H chloroform bond. The composition of the Mn(acac)3· 2CHCl3 solvate was determined using gravimetric analysis.
Characteristics of the formation and composition of AlxGa1-xN/AlN/por-Si/Si(111) heterostructures grown using a porous silicon buffer layer
Authors: Леньшин Александр Сергеевич , Середин Павел Владимирович , Золотухин Дмитрий Сергеевич , Бельтюков Артемий Николаевич , Мизеров Андрей Михайлович , Касаткин Игорь Алексеевич , Али Радам , Домашевская Эвелина Павловна
Published: April 2022

In this work, we studied the efficiency of introducing nanoporous silicon as a buffer layer in the growth of AlxGa1–xN/AlN/Si(111) on a single-crystal silicon by molecular beam growth technology. We also considered its influence on the morphological characteristics and atomic composition of the surface layers of heterostructures. As determined by X-ray diffraction, microscopic, and X-ray photoelectron methods, the heterostructure grown on Si(111) n-type monocrystalline silicon wafer with nanoporous por-Si buffer layer has a more homogeneous epitaxial layer, and the surface morphology of the layer is also more homogeneous.
Хроматографическое определение зеаксантина в некоторых сортах Сapsicum annum
Authors: Буржинская Таисия Григорьевна , Дейнека Виктор Иванович , Дейнека Людмила Александровна , Селеменев Владимир Федорович
Published: April 2022

Исследован каротиноидный состав девяти сортов плодов болгарского перца (Capsicum annuum) с оранжевой окраской. Установлено, что оранжевая окраска может быть обусловлена как накоплением зеаксантина (неэтерифицированного, моноэфиров и диэфиров), так и смесью желтых (при продолжении цепи биосинтеза до продуктов эпоксидирования) и красных (при неполном превращении последних в производные капсантина и капсорубина) ксантофиллов. Показано, что дифференциация в этом случае возможна по анализу электронных спектров поглощения ацетоновых экстрактов плодов. Однако спектрофотометрический метод не позволяет различать β-каротин, β-криптоксантин и его эфиры и зеаксантин и его эфиры.

Для профилактики и лечения возрастной макулярной дистрофии (ВМД) нужен только зеаксантин (и его эфиры). Поэтому поиск довольно редко встречающихся в российской флоре источников зеаксантина представляет особый интерес. В этом отношении на следующей стадии контроля конечной стадии биосинтеза возможно использование тонкослойной хроматографии на силикагеле или еще более информативного метода – обращенно-фазовой ВЭЖХ. В тонкослойной хроматографии (ТСХ) разделение на силикагелевых пластинах основано на различии в количестве и качестве полярных групп и практически не зависит от липофильности, связанной с радикалами высших жирных кислот, образовавших соответствующие эфиры. Отмечено, легко добиться условий, при которых β-каротин, как компонент, не имеющий полярных групп, имеет наиболее высокую хроматографическую подвижность, эфиры β-криптоксантина (имеется только одна полярная сложноэфирная группа) имеют заметно меньшую подвижность, и еще сильнее удерживаются диэфиры зеаксантина (имеют две полярные сложноэфирные группы). Неэтерифицированный β-криптоксантин (имеет одну ОН-группу), моноэфиры зеаксантина (имеют одну ОН- и одну сложноэфирную группы) и, наконец, неэтерифицированный зеаксантин имеют низкую подвижность, оставаясь на линии старта или недалеко от нее (подвижная фаза н-гексан –ацетон 20 : 0.3). В обращенно-фазовой ВЭЖХ удается также разделить все указанные компоненты, при этом они легко отделяются от продуктов эпоксидирования зеаксантина, и возможно определение распределения радикалов лауриновой, миристиновой и пальмитиновой кислот по моно- и диэфирам. Найдено, что среди четырех сортов перца, содержащих производные зеаксантина уровень их накопления, находится в пределах 15-25 мг на 100 г свежих плодов, что при правильной подготовке пищи может обеспечить суточную потребность в зеаксантине (2 мг).
Сорбция ароматических аминокислот на низкоосновных анионообменниках в непротонированной форме
Authors: Хохлова Оксана Николаевна , Хохлов Владимир Юрьевич , Лисицына Светлана Александровна
Published: April 2022

Известно, что низкоосновные ионообменники, содержащие в составе функциональных групп азот различной степени основности, обладают способностью к ионообменной сорбции только в кислой среде. Использование таких сред существенно сужает круг растворов, деминерализация которых возможна с помощью таких анионообменников. Рассматриваемые сорбенты обладают высокими емкостями, а функциональные группы могут служить сорбционными центрами при поглощении веществ по механизмам, исключающим ионный обмен. Однако сорбции аминокислот низкоосновными анионообменниками в непротонированных формах уделялось неоправданно мало внимания. Поэтому цель работы – исследование сорбции ароматических аминокислот и механизма их закрепления в фазе сорбента при использовании анионообменников в непротонированной форме, и сравнение результатов с данными, полученными при использовании сорбентов в солевой форме. Сорбция ароматических аминокислот фенилаланина, тирозина, гистидина из водных растворов изучалась в статических условиях методом переменных концентраций на анионообменниках АН-221, АН-251, АН-31. Определение аминокислот в равновесных растворах проводили спектрофотометрически. Показано, что вид изотерм, а, следовательно, механизм закрепления определяется природой аминокислоты, а количество поглощенного вещества – типом ионообменника.

Установлено принципиальное отличие механизма закрепления аминокислот при сорбции на непротонированной форме по сравнению с Сl-формой анионообменников. Необменное закрепление аминокислот в фазе анионообменников в протонированной форме протекает за счет ион-дипольных взаимодействий между противоположно заряженными функциональными группами (ионами) сорбата и сорбента и водородных связей, формирующихся между их гидратными оболочками, а на непротонированной форме закрепление протекает преимущественно за счет переноса протона от аминогруппы аминокислоты к непротонированному азоту функциональной группы анионообменника. Для непротонированной формы поглощение аминокислот увеличивается с ростом основности функциональных групп сорбента, что обусловлено их способностью протонироваться. В целом, для сорбентов в непротонированной форме, как и для солевой формы механизм поглощения одинаков для каждой аминокислоты, а количество поглощенного вещества определяется типом ионообменника.