bluuebunny/crossref_metadata_2025 huggingface dataset:
Modulation of MoSH/WSi2N4 Schottky-junction barrier by external electric field and biaxial strain
Authors: Liang Qian , Qian Guo-Lin , Luo Xiang-Yan , Liang Yong-Chao , Xie Quan ,   Institute of New Optoelectronic Materials and Technology, College of Big Data and Information Engineering, Guizhou University, Guiyang 550025, China
Published: July 2022

In view of the newly synthesized two-dimensional (2D) semiconductor material WSi2N4 (WSN) and the 2D metal material MoSH (MSH), a metal-semiconductor MSH/WSN Schottky-junction is constructed in this work. In practical applications of metal-semiconductor contact, the presence of the Schottky barrier degrades the device performance severely. Therefore, it is crucial to obtain a smaller Schottky barrier height or even an Ohmic contact. Here, the first-principles calculations are used to investigate the variation of the Schottky barrier in MSH/WSN Schottky-junction under an external electric field and a biaxial strain. The results show that both external electric field and biaxial strain can effectively modulate the Schottky barrier of the MSH/WSN Schottky-junction. The dynamic switching between the p-type Schottky contact and the n-type Schottky contact can be achieved under the action of positive external electric field in the MSH/WSN Schottky-junction. Under the action of negative external electric field, the MSH/WSN Schottky-junction can be modulated to realize the transition from the Schottky contact to the Ohmic contact. The large biaxial strain can also induce the MSH/WSN Schottky-junction to realize the transition between the p-type Schottky contact and the n-type Schottky contact. This work may provide theoretical guidance for the WSN semiconductor based Schottky functional devices and field-effect transistors.
Aberration correction of aperture-divided off-axis simultaneous polarization super-resolution imaging optical system
Authors: Sun Sheng , Wang Chao , Shi Hao-Dong , Fu Qiang , Li Ying-Chao ,   National and Local Joint Engineering Research Center for Space Optoelectronics Technology, Changchun University of Science and Technology, Changchun 130022, China,   State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
Published: July 2022

According to the requirements for broadband simultaneous polarization high-resolution imaging, a divided-aperture simultaneous polarization super-resolution imaging system based on reflective free-form surface optical system and digital micro-mirror device is proposed. It has the advantages of wide working wavelength band, simultaneous imaging of multiple polarization states, single detector, high resolution and lightweight. The aberration correction principle and design optimization method of the optical structure for this imaging system are given. The Wassermann-Wolf theory is further developed, and the reflective Wassermann-Wolf differential equations that eliminate a variety of aberrations are derived. At the same time, combined with Seidel aberration theory and using iterative method, the distortion elimination boundary condition is added when solving the Wassermann-Wolf equation. Through the iterative method, the optical initial structure is obtained, which can correct spherical aberration, coma, astigmatism and distortion at the same time. The initial structure is subjected to off-axis treatment and further optimized, and the user-defined optimization evaluation function is written to strictly control the position of the light falling point of each sub aperture and each field of view on the middle image plane and the final image plane, so as to effectively suppress the distortion in the final system and avoid the mismatch error between the mirror element and the pixel in the process of super-resolution reconstruction. The reconstruction quality can be improved. Finally, the design of the four-sub-aperture free-form surface off-axis reflective super-resolution imaging optical system is completed, which possesses a large relative aperture (F# = 2.5) and compact structure. The imaging quality of each polarization channel is close to the diffraction limit. The above aberration correction principle and the image quality optimization method can effectively guide the design of the wide band simultaneous polarization super-resolution imaging optical system.
Lineage of the Theory of Invariant Integrals on Groups
Authors: Hirai Takeshi
Published: July 2022

From the standpoint of the History of Mathematics, beginning with pioneering work of Hurwitz on invariant integrals (or invariant measures) on Lie groups, we pick up epoch-making works successively and draw the main stream among so many contributions to the study of invariant integrals on groups, due to Hurwitz, Schur, Weyl, Haar, Neumann, Kakutani, Weil, and Kakutani-Kodaira, and explain their contents and give the relationships among them.
Exploring the expression patterns of palmitoylating and de-palmitoylating enzymes in the mouse brain using the curated RNA-seq database BrainPalmSeq
Authors: Wild Angela R , Hogg Peter W , Flibotte Stephane , Nasseri Glory G , Hollman Rocio B , Abazari Danya , Haas Kurt , Bamji Shernaz X
Published: July 2022

Protein S-palmitoylation is a reversible post-translational lipid modification that plays a critical role in neuronal development and plasticity, while dysregulated S-palmitoylation underlies a number of severe neurological disorders. Dynamic S-palmitoylation is regulated by a large family of ZDHHC palmitoylating enzymes, their accessory proteins, and a small number of known de-palmitoylating enzymes. Here, we curated and analyzed expression data for the proteins that regulate S-palmitoylation from publicly available RNAseq datasets, providing a comprehensive overview of their distribution in the mouse nervous system. We developed a web-tool that enables interactive visualization of the expression patterns for these proteins in the nervous system (http://brainpalmseq.med.ubc.ca/), and explored this resource to find region and cell-type specific expression patterns that give insight into the function of palmitoylating and de-palmitoylating enzymes in the brain and neurological disorders. We found coordinated expression of ZDHHC enzymes with their accessory proteins, de-palmitoylating enzymes and other brain-expressed genes that included an enrichment of S-palmitoylation substrates. Finally, we utilized ZDHHC expression patterns to predict and validate palmitoylating enzyme-substrate interactions.
Comparative full-length transcriptome analysis by Oxford Nanopore Technologies reveals genes involved in anthocyanin accumulation in storage roots of sweet potatoes (Ipomoea batatas L.)
Authors: Xiong Jun , Tang Xiuhua , Wei Minzheng , Yu Wenjin
Published: July 2022

Background

Storage roots of sweet potatoes (Ipomoea batatas L.) with different colors vary in anthocyanin content, indicating different economically agronomic trait. As the newest DNA/RNA sequencing technology, Oxford Nanopore Technologies (ONT) have been applied in rapid transcriptome sequencing for investigation of genes related to nutrient metabolism. At present, few reports concern full-length transcriptome analysis based on ONT for study on the molecular mechanism of anthocyanin accumulation leading to color change of tuberous roots of sweet potato cultivars.

Results

The storage roots of purple-fleshed sweet potato (PFSP) and white-fleshed sweet potato (WFSP) at different developmental stages were subjected to anthocyanin content comparison by UV-visible spectroscopy as well as transcriptome analysis at ONT MinION platform. UV-visible spectrophotometric measurements demonstrated the anthocyanin content of PFSP was much higher than that of WFSP. ONT RNA-Seq results showed each sample generated average 2.75 GB clean data with Full-Length Percentage (FL%) over 70% and the length of N50 ranged from 1,192 to 1,395 bp, indicating reliable data for transcriptome analysis. Subsequent analysis illustrated intron retention was the most prominent splicing event present in the resulting transcripts. As compared PFSP with WFSP at the relative developmental stages with the highest (PHvs.WH) and the lowest (PLvs.WL) anthocyanin content, 282 and 216 genes were up-regulated and two and 11 genes were down-regulated respectively. The differential expression genes involved in flavonoid biosynthesis pathway includeCCoAOMT,PpLDOX,DFR, Cytochrome P450,CHI, andCHS. The genes encoding oxygenase superfamily were significantly up-regulated when compared PFSP with WFSP at the relative developmental stages.

Conclusions

Comparative full-length transcriptome analysis based on ONT serves as an effective approach to detect the differences in anthocyanin accumulation in the storage roots of different sweet potato cultivars at transcript level, with noting that some key genes can now be closely related to flavonoids biosynthesis. This study helps to improve understanding of molecular mechanism for anthocyanin accumulation in sweet potatoes and also provides a theoretical basis for high-quality sweet potato breeding.
Automated detection and removal of flat line segments and large amplitude fluctuations in neonatal electroencephalography
Authors: Tamburro Gabriella , Jansen Katrien , Lemmens Katrien , Dereymaeker Anneleen , Naulaers Gunnar , De Vos Maarten , Comani Silvia
Published: July 2022

Background

Artefact removal in neonatal electroencephalography (EEG) by visual inspection generally depends on the expertise of the operator, is time consuming and is not a consistent pre-processing step to the pipeline for the automated EEG analysis. Therefore, there is the need for the automated detection and removal of artefacts in neonatal EEG, especially of distinct and predominant artefacts such as flat line segments (mainly caused by instrumental error where contact between electrodes and head box is lost) and large amplitude fluctuations (related to neonatal movements).

Method

A threshold-based algorithm for the automated detection and removal of flat line segments and large amplitude fluctuations in neonatal EEG of infants at term-equivalent age is developed. The algorithm applies thresholds to the absolute second difference, absolute amplitude, absolute first difference and the ratio between the frequency content above 50 Hz and the frequency content across all frequencies.

Results

The algorithm reaches a median accuracy of 0.91, a median hit rate of 0.91 and a median false discovery rate of 0.37. Also, a significant improvement (≈10%) in the performance of a four-stage sleep classifier is observed after artefact removal with the proposed algorithm as compared to before its application.

Significance

An automated artefact removal method contributes to the pipeline of automated EEG analysis. The proposed algorithm has shown to have good performance and to be effective in neonatal EEG applications.
Pensar la pregunta del hombre por su salvación en perspectiva teológica. A propósito de la narrativa transhumanista sobre el futuro humano
Authors:   Universidad Pontificia de México. México, Cabiedas Juan Manuel
Published: July 2022

Partiendo de una crítica a la concepción antropológica que subyace a la visión transhumanista del futuro de la humanidad, el propósito de este estudio es dar cuenta de la relevancia que posee hoy la soteriología cristiana para el progreso de la cultura humana. Para ello se muestra la profunda responsabilidad antropológica que adquiere la revelación de Dios en la persona de Jesucristo, al no eludir la paradoja que confirma la veracidad de la pregunta del hombre por su salvación: no contra, sino en y a través de la menesterosidad de su naturaleza personal.
Miren Junkal Guevara, Aproximación a la historia de los orígenes de Israel. Notas de la presentación de un estado de la cuestión
Authors:   Universidad Pontificia de Salamanca. España, Yebra Rovira Carmen
Published: July 2022

Los autores de artículos aceptados en Teología y Vida conservan los derechos de propiedad intelectual sobre sus trabajos y otorgan a la revista los permisos de distribución y comunicación pública de los mismos, consintiendo que se publiquen bajo una licencia Creative Commons (BY-NC-ND) 4.0 Internacional, que se otorga por todo el plazo de protección de la obra y con un carácter no exclusivo. La única limitación para el autor es que sólo podrá otorgar licencias no exclusivas sobre su obra. Esta licencia no permite la generación de obras derivadas ni hacer un uso comercial de la obra original, es decir, sólo son posibles los usos y finalidad que no tengan carácter comercial. Se recomienda a los autores publicar su trabajo en Internet (por ejemplo en páginas institucionales o personales, repositorios, etc.) respetando las condiciones de esta licencia y citando debidamente la fuente original.
Juliana Schmemann, Il mio viaggio con padre Alexander
Authors:   Aid to the Church in Need (ACN International), Rosas-Jiménez Carlos Alberto
Published: July 2022

A un hombre o una mujer que tiene una gran sensibilidad espiritual, que se interesa por los temas de fe y religión o que dedica buena parte de su tiempo al cultivo de la vida espiritual se le asocia casi siempre con un sacerdote o una religiosa, a veces incluso de manera despectiva. Pareciera que el interés por lo espiritual fuera algo exclusivo de unos pocos. Sin embargo, Alexander Schmemann es un ejemplo de cómo una gran sensibilidad espiritual, un profundo interés por los temas de fe y religión y una gran dedicación de tiempo al cultivo de la vida espiritual se combina con ser padre de familia. Es por eso que este libro apelará en particular a muchos hombres ya casados o que quieran casarse y al mismo tiempo llevar una vida de fe sólida, consistente y coherente. Schmemann fue un hombre, que sintiendo un llamado muy fuerte a entablar una relación estrecha con Dios, descubrió que su camino no solo era llevar una vida verdaderamente espiritual desde el sacerdocio, sino también el matrimonio. En este libro, su esposa, Juliana Schmemann, hace un recorrido describiendo la vida de Alexander, desde las cosas más sencillas, como el degustar una caminata en medio de la naturaleza con su familia, del tiempo que pasaba a solas en su escritorio leyendo o escribiendo, hasta la grandeza de la celebración de la liturgia que tanto amaba y disfrutaba.
+ Tony Mifsud Buttigieg, sj (02 de mayo de 2022)
Authors:   Universidad Católica Silva Henríquez. Chile, Montero Orphanopoulos Carolina
Published: July 2022

Los autores de artículos aceptados en Teología y Vida conservan los derechos de propiedad intelectual sobre sus trabajos y otorgan a la revista los permisos de distribución y comunicación pública de los mismos, consintiendo que se publiquen bajo una licencia Creative Commons (BY-NC-ND) 4.0 Internacional, que se otorga por todo el plazo de protección de la obra y con un carácter no exclusivo. La única limitación para el autor es que sólo podrá otorgar licencias no exclusivas sobre su obra. Esta licencia no permite la generación de obras derivadas ni hacer un uso comercial de la obra original, es decir, sólo son posibles los usos y finalidad que no tengan carácter comercial. Se recomienda a los autores publicar su trabajo en Internet (por ejemplo en páginas institucionales o personales, repositorios, etc.) respetando las condiciones de esta licencia y citando debidamente la fuente original.
Prevalence and Association of Meibomian Gland Dysfunction with Dry Eye Severity from a Tertiary Care Rural Hospital in Central Gujarat: A Cross-sectional Study
Authors: Mehta Devanshi Smit , Sisodiya Sonal Dhruvpal , Jani Harsha Chetan
Published: July 2022

Introduction: Meibomian glands are holocrine meibum secreting glands driving out the oil from the orifice. It forms the outermost lipid layer of the tear film which prevents overflow of tears because of its hydrophobic properties and reduces their evaporation. The deficiency of oily layer of the tear film leads to evaporative dry eyes and ocular surface diseases. As Meibomian Gland Dysfunction (MGD) is one of the major causes of evaporative dry eye, with the help of this study, prevalence and association of MGD and dry eye can be evaluated and treated. Aim: To find out the prevalence and association of MGD and dry eye as well as asymptomatic individuals having MGD and dry eye in 30-80 years age group in the region of central Gujarat, Western India. Materials and Methods: This cross-sectional study was conducted in the Out Patient Department (OPD) of a Rural Tertiary care hospital in central Gujarat, India between February 2020- February 2021, after taking approval from Institutional Ethics Committee. Study included 389 subjects representing rural population of Anand, Gujarat, India. Subjects were asked for symptoms of dry eye according to Ocular Surface Disease Index (OSDI) questionnaire and severity of symptoms was assessed. Comprehensive ophthalmic examination including Best Corrected Visual Acuity (BCVA), Schirmer’s test, slit lamp examination including conjunctival and corneal surface staining, Tear Film Break Up Time (TBUT), evaluation of meibomian gland orifices, lid margin anatomy, meibum expressibility, quality of meibum, meibomian gland dropouts was done. On the basis of these parameters, diagnosis and grading of MGD and dry eye was done. Subgroups were made according to age, gender, comorbidities (diabetes mellitus, hypertension, thyroid disease), cases of any refractive eye surgery, pseudophakic eyes, use of systemic drugs, hormonal pills, topical antiglaucoma drugs and use of contact lens. Data analysis was done by descriptive statistics (using Stata software 14.2 version). Analysis of Variance (ANOVA) were used to assess the association and Pearson test was applied to assess the correlation of MGD scores and dry eye severity with age. Results: Overall prevalence of MGD and dry eye were 97.4 % and 88.82% respectively. Out of all, 219 (56.3%) participants were asymptomatic. Age was significantly correlated with MGD and dry eye severity. Higher MGD scores were found with increase with dry eye severity. Highest MGD scores were observed when the tear break up time was <5 seconds. Conclusion: The prevalence of MGD and dry eye was high in the region of central Gujarat, India. MGD leads to deficiency of oily layer of the tear film leading to evaporative dry eyes and ocular surface diseases.
A Prospective Clinical Study of Mesh Size required for Open Inguinal Hernia Repair
Authors: Choudhary Rahul , Sharma Dharamanjai Kumar , Ram Shri , Sharma Hina
Published: July 2022

Introduction: Inguinal hernia repair by open method is among the most frequently performed surgical procedures. The current standard surgical procedure employed is Lichtenstein’s tensionfree mesh repair which requires covering an area defined by anatomic landmarks like Anterior Superior Iliac Spine (ASIS), pubic tubercle, conjoint tendon etc. with a mesh. The distances among these landmarks vary depending upon stature, race, and gender of the patients. Aim: To study whether the commercially available mesh size can be reduced specifically for a subset of Indian population by estimating the actual sizes of mesh applied during inguinal hernia surgery. Materials and Methods: In this prospective clinical study 25 patients undergoing open inguinal mesh hernioplasty were studied at a tertiary care centre over a period of one year from August 2019 to July 2020. During surgery the standard size commercially available mesh (15x7.5 cm2 ) was trimmed down according to the dimensions and anatomical landmarks that were assessed during surgery in the usual manner. Since it is difficult to measure size of applied mesh intraoperatively and because it is often irregular in shape, a novel method was adopted to estimate the mesh size applied. The trimmed out portions of the mesh were weighed using a high precision electronic weighing machine. The ratio of weight of trimmed out portion to total weight of the standard sized mesh was used to derive the area of the mesh applied. Statistical analysis and significance tests were performed using spreadsheet software and student’s t-test, respectively. Results: Areas of mesh actually applied in the study- mean (85.26±11.04 cm2 ), mean+2SD (107.34 cm2 ), most common (75-97.4 cm2 ) and maximum (102.75 cm2 )- all were found to be less than the standard, commercially available size of mesh. No statistically significant difference was found between areas of mesh applied in patients with indirect and direct hernias using unpaired student t-test (p-value=0.1076). Conclusion: Areas of mesh actually applied in present study were found to be less than the standard, commercially available size of mesh for inguinal hernia repair.
Difficult Airway ManagementA Challenge to Anaesthesiologists
Authors: Shivanand LK , Pratibha SD , Prasad Sai , Shankar Divya , Patil Vidya
Published: July 2022

Anticipated and unanticipated difficult airway remains an everlasting challenge for anesthesiologist. Most airway problems can be solved with enough resources available but clinical judgment borne of experience, and expertise is crucial in implementing the skills in any difficult airway scenario. Detailed patient history, best utilisation patient protocols, with good clinical assessment may reduce the difficult airway complications. The present series reports six patients with anticipated difficult airway-burn contracture, fractured mandible with restricted mouth opening: meningo myelocoele (in a neonate, and there was difficulty in positioning for intubation), anterior mediastinal mass (with difficulty in maintenance of anesthesia), cervical spine injury and one patient with left mandible fracture with history of road traffic accident. Different methods were successfully adopted for managing all of these difficult airway cases. Hence planning, preparation, and execution is very important in successful management of difficult airway.
Comparative Chemical Evaluation of Three Species of Melon (Cucumis melo, Cucurbita moschata and Cucumeropsis mannii) Seeds
Authors: Ajibe Y. Y. , Ubana M. A. , Bamidele T. O.
Published: July 2022

Aim: This study evaluates the nutritional composition of three species of melon seeds (Cucumeropsis mannii, Cucumis melo, and Cucurbita moschata). The seeds were obtained from Nasarawa State, Nigeria.

Methodology: Phytochemical constituents and proximate composition was determined by the method of Association of Official Analytical Chemists method (AOAC). Vitamins, amino acids and minerals were determined by standard methods. Oils were extracted from the samples using soxhlet apparatus with n-hexane.

Results: The result of phytochemical analysis revealed the presence of phenol, alkaloids, terpenes, triterpenes, cardiac glycoside, sterols, terpenoids and tannins in the three species. The proximate composition revealed that crude fat is high in all the samples with C. moschata having the highest (41.23%) while C. mannii have the highest crude protein (26.31%). The result also reveals that all the samples have low carbohydrate (11%, 14% &13%) for C. mannii, C. melo and C. moschata respectively. The result of mineral composition reveals that potassium is high in all the samples with C. moschata having the highest (84.62 mg/100g) while Cadmium is the lowest (0.06mg/100g). The varieties also contain β-carotene, α-tocopherol and Ascorbic acid where β-carotene is the most abundant in the three varieties. The amino acid composition revealed leucine, alanine, phenylalanine, arginine, glutamic acid serine and aspartic acid to be the highest in all the samples. The percentage oil yield from the seeds were 32.90%, 31.38%, and 37.28% for C. mannii, C. melo and C. moschata respectively. The physicochemical properties of the oil obtained revealed acid value (mgKOH/g) in the range of 0.38-0.53. Saponification value (mg/KOH/g) 152.5-168.3, Iodine value (g/I2/100g) 92.7-119.5 free fatty acid (%Oleic) 2.34-3.66. Peroxide value (meqKOH/g) 4.56-6.38 and the pH in the range of 6.09-6.18 for C. mannii, C. melo and C. moschata respectively.

Conclusion: The three melon seeds species contain almost similar nutritional composition. This justified the use of the melon seeds for industrial, food, medicinal and cosmetic purposes.
Mangat Randomized Response Group Testing Theory
Authors: T. Adeniran Adefemi , E. Eyo Daniel
Published: July 2022

This paper proposed a new Randomized Response Group Testing (RRGT) model that estimates proportion of people characterizing a sensitive variable under study. Simple random sampling with replacement, binomial probability distribution and maximum likelihood were used as randomization procedure, sampling model and estimation technique, respectively. The distributional properties (expectation and variance) of the proposed estimator, efficiency comparison of the model with some existing models, and numerical illustration of all the competing models were also explored. The study found that the developed model outperformed competing existing orthodox RRMs and earlier RRGT model in terms of efficiency, privacy protection and it is economically advantageous.
Amazon and Brazilian Polyherbal Preparation for Treatment of Necrotizing Fasciitis
Authors: Pereira Ricardo de Souza , Monteiro Nayana Mendes
Published: July 2022

Necrotizing fasciitis (flesh-eating disease) is a rare but life-threatening condition. We report one case of severe necrotizing fasciitis affecting the leg at risk of being amputated due to infection, before and after treatment with medicinal plants which have empirical broad-spectrum antibiotic and anti-inflammatory properties. All the medical attempts with conventional antibiotics failed and we had to act rapidly in order to cure the infection and prevent the amputation. These results suggest that certain medicinal plants could represent a treatment option and that further studies are considered.
Growth and Establishment of Cacao Seedlings under Intercrop with Plantain at Different Transplanting Positions
Authors: Babatunde Adejobi, Kayode , Olatunde Famaye, Amos , Adewale Adeosun Seun , Ojodale Edibo, Gabriel
Published: July 2022

An investigation was carried out in Cocoa Research Institute of Nigeria (CRIN), Uhonmora Station, Edo State to evaluate the effect of transplanting positions of cacao (Theobroma cacao L) seedlings with plantains under field condition. Four treatments were evaluated: Plantain suckers on top of cacao seedlings at transplanting (PTCT), Cacao seedlings on top of plantain suckers at transplanting (CTPT), Cacao seedlings transplanted 30 cm apart from plantain suckers (CT30P) and Cacao seedlings transplanted 150 cm apart from plantain suckers (CT150P) as control. The experiment was arranged in Randomized Complete Block Design (RCBD) with three replications. Plantain suckers were planted at 3 x 3m spacing as shade crop while cacao seedlings (hybrid) were planted on treatment basis. The experiment was monitored for 22 months after transplanting. Data were collected on plant height, number of leaves, stem diameter, number of branches and leaf area at 3, 4, 5, 12, 13, 14 and 15 Months After Transplanting (MAT), and on Survival count (%) at 10 and 22 MAT. The data were analyzed with analysis of variance (ANOVA) as well as descriptive statistics, and significant means separated by Duncan multiple range test (P<0.05). The result showed that cacao seedlings on top of plantain (CTPT) at transplanting had the highest percentage of 91.67 and 75.00 survival count at 10 and 22 MAT, respectively, closely followed by plantain on top of cacao seedlings at transplanting (89.00 % and 72.00%). When compared with CT150P, CTPT increased the plant height, number of leaves, stem diameter, number of branches and leaf area at 4 MAT, at 15 MAT, at 3, 13, 14, 15 MAT, at 3, 15 MAT and at 13, 14,15 MAT, respectively by 1%, 10%, 61%, 2%, 3%, 8%,46%, 11%, 5%, 3% and 13%, respectively. Therefore, cacao seedlings transplanted on top of plantain was the most effective treatment for improving cacao seedling establishment and growth under field condition.
Effect of Nano Fertilizer on Growth, Yield and Quality of Okra (Abelmoschus esculentus)
Authors: Lekshmi A. M. Jyothi , Bahadur Vijay , Abraham Rincy K. , Kerketta Anita
Published: July 2022

The present investigation was conducted to study the effect of nano fertilizer in the growth yield and quality of okra (Abelmoschus esculenthus). The experiment was carried out at the instructional farm of ICAR- Krishi Vigyan Kerndra, Pathanamthitta, Kerala, during the year 2021. The experiment was laid out in randomized block design with three replications. Ten different treatments were carried out with different combinations of fertilizers. The result obtained with treatment T2 (Soil application of 50% recommended dose of fertilizers as conventional fertilizer + 50% recommended dose of nano N as foliar application, nano P&K as soil application) was recorded the best among in all combination of conventional fertilizer NPK and nano NPK in term of growth, yield attribute and quality parameters like plant height 120.21 cm, number of leaves per plant 83.99, number of branches per plant 3.62, days to first harvesting 46.97, pod length 12.72cm, pod width 1.65cm, number of pods per plant 29.23, average of pod weight 12.67g, pod yield per plant 370.39g, pod yield per plot 8.89kg, pod yield 131.69q ha-1and TSS 2.930Brix. The highest cost benefit ratio 3.59 was also observed in T2 (Soil application of 50% RDF as conventional fertilizer + 50% recommended dose of nano N as foliar application, nano P&K as soil application).
In vitro Antioxidant Activity of Parangipattai Rasayanam (PRM)- A Siddha Polyherbal Formulation
Authors: Mahalakshmi V. , Hazel A. M. Amala , Muthukumar N. J. , Meenakumari R.
Published: July 2022

Background: The Siddha system of medicine uses a interesting combination of herbs, minerals and metals to promote good health and longevity. Parangipattai Rasayanam is a polyherbal formulation mentioned in the Siddha literature and is indicated for Soolai (Pain), Viranam (Various ulcers), Kiranthi (Venereal diseases), Kuttam (Skin diseases), Gunmam (peptic ulcer) and Moorchai.

Aim: Evaluate the in-vitro antioxidant activity of Parangipattai Rasayanam.

Materials & Methods: The antioxidant activity of Parangipattai Rasayanam was evaluated by using various assays such as DPPH (2, 2-Diphenyl 1-2 picrylhydrazyl) Assay, Nitric Oxide Radical Scavenging Assay, ABTS Assay, Hydrogen Peroxide Radical Scavenging Assay.

Result: Parangipattai Rasayanam has promising anti-oxidant activity in the estimated assays.
Comparison of Complication Regarding Modified Duhamel Procedure for Hirschsprung’s Disease in Male to Female Children
Authors: Shah Masoom Ali
Published: July 2022

Aim: To compare the complications regarding modified Duhamel procedure in male to female children for Hirschsprung’s disease (HSCR).

Methodology: This comparative retrospective study was done at pediatric surgery department PUMHSW Nawabshah during Jun 2019-Aug 2020. Sample size was selected as 70 patients and divided it into two groups. Group A contain 45 male children while group B also consists of 25 female children. The children between the age of 2-15 year, both sexes and confirm Hirschsprung’s disease was included in this study while the children below 2 years. The study was approved by ethical review board PUMHSW Nawabshah. Written informed consent was obtained from parents or guardians of the participants. 

Results: There were 64.28% (n=45) male and 35.72% (25) female patients (Fig 1). The mean weight of patients in male was 17.8 ± 7.6 kg while in female was 15.6±6.27 kg (Fig 2). In the distribution of patients by complications, anorectal stenosis was present in 13.33% (n=6) in male while 12% (n=3) in female children. Wound infection was present in 8.88% (n=4) in male and 8% (n=2) in female children. Intestinal obstruction was present in 11.11% (n=5) and 12% (n=3) in male and female children respectively.

Conclusion: It was concluded that modified Duhamel Procedure for Hirschsprung’s disease has less postoperative complications in both male and females moreover there is no significant difference of postoperative complications in both sexes.
Effect of Chronic Oral Exposure to Overdose of Cough Syrups on Rate of DNA Fragmentation in Liver and Brain of Wistar Rats
Authors: Kayode Abolanle A. A. , Kayode Omowumi T. , Mohammad Auwal A. , Alabi Great O.
Published: July 2022

This study was designed to determine the effect of chronic oral exposure of overdose of cough syrups containing codeine (CSC) and dextromethorphan (DXM) on the rate of deoxyribonucleic acid (DNA) fragmentation in the liver and brain of Wistar rats. Forty-five rats divided into 9 groups of 5 rats were used. Groups 1, 2, 3, and 4 were treated with 0.1, 0.2, 0.4, and 0.6 mg/kg b/w of CSC, and Groups 5, 6, 7, and 8 were treated with the same doses of DXM, respectively for 21 days. Group 9 (control) received distilled water once daily and all the rats were sacrificed 24 hours after the last treatment. DNA analysis was done on the harvested liver and brain. Significant reductions (p < 0.05) in the rate of DNA fragmentation of the liver tissues were observed in all the groups treated with the overdose of cough syrups when compared to the control. However, there was no significant difference in the rate of DNA fragmentation of the brain in all the groups treated with cough syrup as compared to the control. The result indicated that overdose of cough syrup may cause suppressed DNA fragmentation of the liver thereby predisposing the organ to dysfunctions and untimely aging.
tripulantes da história
Authors: Costa Valéria , Gomes Flávio
Published: July 2022

O presente artigo recupera fragmentos da vida do marinheiro Duarte José Martins da Costa, cujas experiências de escravidão e de liberdade estiveram nas encruzilhadas do comércio negreiro entre as costas ocidental e centro-ocidental da África e a do Brasil. Por meio de sua trajetória, cotejamos as conexões atlânticas que envolveram negociantes de pequeno porte, marítimos, agenciadores de cativos; libertos, escravizados, livres; europeus, americanos, africanos; brancos, negros e “mestiços”, os quais compõem o que denominamos de “rede miúda” do tráfico negreiro também responsável pela amplitude do comércio ilegal do Brasil do século XIX.
O que nos contam as pedras pisadas do cais?
Authors: Cunha Paz Francisco Phelipe
Published: July 2022

Pode-se observar que, nos últimos trinta anos, o interesse pelas memórias da escravidão e as expressões do passado, como os lugares de memória, os museus e o patrimônio cultural, intensificou-se. Ao acessar o passado da escravidão, grupos e indivíduos constroem narrativas próprias sobre esse passado e rompem com espaços que, historicamente, produzem um apagamento, quando não um silenciamento e uma marginalização da África e das populações negras em diáspora. Assim, diante desse quadro de reivindicação recente por reconhecimento e patrimonialização das memórias da escravidão, este texto se propõe a interpelar um bem cultural e patrimônio da humanidade, o Sítio Arqueológico Cais do Valongo, a partir das agências de atores sociais negros da região da Pequena África, e os usos políticos do passado por esses atores contemporâneos na luta por identificação, reconhecimento e reparação, bem como na luta contra o racismo.
processo do Clementina e o combate ao comércio transatlântico de africanos escravizados na Província de Pernambuco (1831-1839)
Authors: Ramos de Santana Aderivaldo
Published: July 2022

O presente artigo analisa o processo da escuna francesa Clementina, apreendida no dia 21 de janeiro de 1831, com 175 africanos escravizados, suspeita de realizar o tráfico transatlântico para o Brasil. O objetivo geral desse artigo é elaborar um estudo de caso, tendo como fontes primárias a correspondência intercambiada entre o consulado francês no Recife e o governo da Província de Pernambuco, assim como as sentenças prolatadas no Brasil e na França, inserindo nossa análise no contexto do debate que antecede a primeira lei antitráfico de 7 de novembro de 1831 e seus desdobramentos. Em particular, buscamos entender como a apreensão da Clementina pode ser reveladora de uma conjuntura social característica, da qual inferimos, ao mesmo tempo, a participação dos traficantes estabelecidos no Recife e suas estratégias para perpetuarem a ilegalidade do contrabando de seres humanos, bem como compreender o papel desse governo no combate a este infame comércio.
jihadismo transnacional e a insurgência em Cabo Delgado, Moçambique
Authors: Bonate Liazzat J. K.
Published: July 2022

Este artigo visa analisar o conflito de Cabo Delgado sob o prisma do jihadismo transnacional, uma ideologia e um movimento político que se apoderam de demandas e agravos locais, sobretudo contra o Estado, despoletando a insurgência ou canalizando a resistência já existente. O conflito representa também uma resistência contra a ordem mundial dominada pelo Ocidente. A primeira parte do artigo se debruça sobre o conceito e a história do jihadismo transnacional, salientando as transformações na ideologia e na ação dos seus protagonistas, e sua expansão geográfica. A segunda parte analisa o contexto sociopolítico e econômico de Cabo Delgado que contribuiu para o início da insurgência, destacando a resistência contra o Estado moçambicano e contra a hegemonia ocidental na forma do extrativismo conduzido por corporações transnacionais que ali se instalaram a partir de 2010.
Luanda, “uma nova Alexandria”
Authors: Ngãla Juelma de Matos
Published: July 2022

Resenha de:

OLIVEIRA, Vanessa S. Slave Trade and Abolition: Gender, Commerce and Economic Transition in Luanda. Madison: University of Wisconsin Press, 2021. 272 p.
exibição de seres humanos, a prática imperialista e o registro fotográfico
Authors: Francisco Gilberto da Silva
Published: July 2022

Resenha de:

KOUTSOUKOS, Sandra S. M. Zoológicos humanos: gente em exibição na era do imperialismo. Campinas: Editora da Unicamp, 2020. 411 p.
racialização da cidadania
Authors: Nascimento Álvaro Pereira do
Published: July 2022

Resenha de:

GATO, Matheus. O massacre dos libertos: sobre república e raça no Brasil. São Paulo: Perspectiva, 2020. 163 p.
Laboratório para uma República racista
Authors: Romo Anadelia A.
Published: July 2022

Resenha de:
Sampaio, Gabriela dos Reis; e Albuquerque, Wlamyra Ribeiro de. De que lado você samba? raça, política e ciência na Bahia do pós-abolição. Campinas: Editora Unicamp, 2021. (coleção Históri@ Illustrada). e-book, 791 p.
luta desigual sem fim
Authors: Bacelar Jeferson
Published: July 2022

Resenha de:

AMOS, Alcione M. Barry Farm Hillsdale in Anacostia: A Historic African Community. Charleston: History Press, 2021. 223 p.
Repensando o tráfico transatlântico de africanos escravizados na era da ilegalidade
Authors: Santana Aderivaldo Ramos de , Silva Jr. Carlos da , Reginaldo Lucilene , Ferreira Roquinaldo
Published: July 2022

Apresentação do dossiê
Analysis of a surface imaging system using a six degree‐of‐freedom couch
Authors: Zhao Xiaodong , Covington Elizabeth L. , Popple Richard A.
Published: July 2022

Purpose

To validate surface imaging (SI)‐reported offsets using a six degree‐of‐freedom couch and an anthropomorphic phantom for commissioning and routine quality assurance of an SI system used for stereotactic radiosurgery (SRS).

Methods

An anthropomorphic phantom with a radiopaque ball bearing (BB) placed either anterior, midline, or posterior, was tracked with SI with a typical SRS region of interest. Couch motion in all six degrees of freedom was programmed and delivered on a linac. SI system logs were synchronized with linac trajectory logs. Ten random couch positions were selected at couch 0°, 45°, 90°, 270°, 315° with megavolt (MV) images taken to account for couch walkout. The SI residual error (ε), the difference between SI reported offset and MV or trajectory log position, was calculated. Residual errors were measured with and without one SI pod blocked.

Results

The median [range] of magnitude of translational ε was 0.13 [0.07, 0.21], 0.16 [0.11, 0.26], 0.61 [0.50, 0.68], 0.49 [0.42, 0.55], 0.55 [0.38, 0.72] mm for couch rotations of 0°, 45°, 90°, 270°, 315°, respectively, for the midline BB and no pod blocked. The range of all translational ε from all couch angles (with and without pod block) at different BB positions is [0.05, 0.96] mm. The absolute range of difference when changing BB position when no pod is blocked in median translational ε is [0.01, 0.40] mm with the maximum at BB posterior. The absolute range of difference when not changing BB positions with and without pod block in median translational ε is [0.01, 0.37] mm with the maximum at BB posterior and couch 315°.

Conclusion

SI system and linac trajectory log analysis can be used to assess SI system performance with automated couch motion to validate SI accuracy.
Visualizing Dynamic Mechanical Actions with High Sensitivity and High Resolution by Near‐Distance Mechanoluminescence Imaging
Authors: Zhuang Yixi , Li Xinya , Lin Feiyan , Chen Changjian , Wu Zishuang , Luo Hongde , Jin Libo , Xie Rong‐Jun
Published: July 2022

Proportionally converting the applied mechanical energy into photons by individual mechanoluminescent (ML) micrometer‐sized particles opens a new way to develop intelligent electronic skins as it promises high‐resolution stress distribution visualization and fast response. However, a big challenge for ML sensing technology is its low sensitivity in detecting stress. In this work, a novel stress distribution sensor with the detection sensitivity enhanced by two orders of magnitude is developed by combining a proposed near‐distance ML imaging scheme with an improved mechano‐to‐photon convertor. The enhanced sensitivity is the main contributor to the realization of a maximum photon harvesting rate of ≈80% in the near‐distance ML imaging scheme. The developed near‐distance ML sensor shows a high sensitivity with a detection limit down to ≈kPa level, high spatial resolution of 254 dpi, and fast response with an interval of 3.3 ms, which allows for high‐resolution and real‐time visualization of complex mechanical actions such as irregular solid contacts or fluid impacts, and thus enables use in intelligent electronic skin, structural health monitoring, and human–computer interaction.
Bimetal Modulation Stabilizing a Metallic Heterostructure for Efficient Overall Water Splitting at Large Current Density
Authors: Wu Tong , Xu Shumao , Zhang Zhuang , Luo Mengjia , Wang Ruiqi , Tang Yufeng , Wang Jiacheng , Huang Fuqiang
Published: July 2022

Large current‐driven alkaline water splitting for large‐scale hydrogen production generally suffers from the sluggish charge transfer kinetics. Commercial noble‐metal catalysts are unstable in large‐current operation, while most non‐noble metal catalysts can only achieve high activity at low current densities <200 mA cm−2, far lower than industrially‐required current densities (>500 mA cm−2). Herein, a sulfide‐based metallic heterostructure is designed to meet the industrial demand by regulating the electronic structure of phase transition coupling with interfacial defects from Mo and Ni incorporation. The modulation of metallic Mo2S3 and in situ epitaxial growth of bifunctional Ni‐based catalyst to construct metallic heterostructure can facilitate the charge transfer for fast Volmer H and Heyrovsky H2 generation. The Mo2S3@NiMo3S4 electrolyzer requires an ultralow voltage of 1.672 V at a large current density of 1000 mA cm−2, with ≈100% retention over 100 h, outperforming the commercial RuO2||Pt/C, owing to the synergistic effect of the phase and interface electronic modulation. This work sheds light on the design of metallic heterostructure with an optimized interfacial electronic structure and abundant active sites for industrial water splitting.
Visible‐light‐promoted Cascade Reaction of Acryloylbenzamides with Carboxylic Acids: Metal‐free Synthesis of Isoquinolinediones
Authors: Cai Xingxing , Fu Jiahui , Gu Li , Cheng Dongping , Wang Hong , Xu Xiaoliang
Published: July 2022

A metal‐free and mild cascade reaction of acryloylbenzamides with carboxylic acids and α‐imino oxy acid is developed. It undergoes decarboxylation, radical addition, and intramolecular cyclization in the presence of visible light, providing 4‐substituted‐isoquinoline‐1,3(2H,4H)‐diones in moderate to good yields.
Correspondence on “How Aromatic Are Molecular Nanorings? The Case of a Six‐Porphyrin Nanoring”**
Authors: Deng Jie‐Ren , Bradley David , Jirásek Michael , Anderson Harry L. , Peeks Martin D.
Published: July 2022

A recent Research Article in this journal by Matito and co‐workers claimed that none of the oxidation states of a butadiyne‐linked six‐porphyrin nanoring exhibit global aromaticity or antiaromaticity. Here we show that this conclusion is incorrect. Experimental data from NMR spectroscopy for a whole family of nanorings provide strong evidence for global ring currents. The NMR data reveal these ring currents directly, without needing analysis by density functional theory (DFT). Furthermore, DFT calculations reproduce the experimental results when a suitable functional is used.
Functional Droplets Stabilized by Interfacially Self‐Assembled Chiral Nanocomposites
Authors: Zhang Fenghua , Zhang Zongze , Liu Rongjuan , Wei Jingjing , Yang Zhijie
Published: July 2022

Here, we show that aqueous dispersions of inorganic nanoparticles bearing negative surface charges would trigger the chiral assembly of organic radical cations solubilized in organic solvent at the liquid–liquid interface, which consequently produces stable droplets covered by a layer of inorganic/organic chiral nanocomposites. We demonstrate that chirality transfer across the liquid–liquid interface from the chiral organic monomers to the nanoparticle assemblies is realized. Surprisingly, opposite handedness between molecular assemblies and nanoparticle assemblies is determined from both CD and CPL measurements. Moreover, the functionalities of these “chiral” droplets could be further engineered through either a simple mixing or a droplet merging strategy, which enables to produce fluorescent emissive‐tunable, magnetic, as well as magnetofluorescent dual‐functional droplets.
Die höchste Oxidationsstufe von Rhodium: Rhodium(VII) in [RhO3]+
Authors: da Silva Santos Mayara , Stüker Tony , Flach Max , Ablyasova Olesya S. , Timm Martin , von Issendorff Bernd , Hirsch Konstantin , Zamudio‐Bayer Vicente , Riedel Sebastian , Lau J. Tobias
Published: July 2022

Obwohl selten, sind die höchsten Oxidationsstufen im Periodensystem nicht nur von grundlegendem Interesse, sondern auch als starke Oxidationsmittel relevant. Die höchsten Oxidationsstufen finden sich für die elektronenreichen späten Übergangsmetalle der Gruppen 7–9 des Periodensystems. Rhodium ist das erste Element aus der Reihe der 4d Übergangsmetalle, für das die höchste bekannte Oxidationsstufe nicht mehr mit seiner Gruppennummer von 9 übereinstimmt, sondern nur den deutlich niedrigeren Wert von +6 annimmt, und auch dies nur in Ausnahmefällen. Höhere Oxidationsstufen des Rhodiums blieben bisher verborgen. Mittels Kombination von massenspektrometrischen, röntgenabsorptionsspektroskopischen und quantenchemischen Untersuchungen von Gasphasenionen der Art
, (n=1–4), identifizieren wir
als
Trioxidorhodium(VII)‐Kation, welches das erste Beispiel von Rhodium in seiner höchsten Oxidationstufe +7, und gleichzeitig in der dritthöchsten experimentell bestätigten Oxidationsstufe des Periodensystems, darstellt.