bluuebunny/crossref_metadata_2025 huggingface dataset:
Video Based Student Attendance Management System
Authors: Komar Mayur , Kolhe Vinod , Gajul Preeti , Bhukan Rohan
Published: May 2022

Abstract: Mainly there are two conventional methods of marking attendance which are calling out the roll call or by taking student sign on paper. They both were more time consuming and difficult. Hence, there is a requirement of computer-based student attendance management system which will assist the faculty for maintaining attendance record automatically. In this project we have implemented the automated attendance system using MATLAB. We have projected our ideas to implement “Automated Attendance System Based on Facial Recognition”, in which it imbibes large applications. Keywords: Attendance System, Automated Attendance, Image Processing, Face Detection, Feature Matching, Face Recognition
Result Paper on IOT Based Induction Motor Speed Control and Parameter Monitoring
Authors: Gore Nitin , Naik Prof. A. V.
Published: May 2022

Abstract: Today’s application of single phase induction motor is increased due to it simple operation and availability of single phase supply in every place. The single phase motor available in different rating, Different speed and used for different application. The single induction motor is used for particular operation need to protect motor and need to control parameters of single phase induction motor and monitor this data to user operator. This is possible with help of IOT in this project single phase induction motor parameter monitoring and speed control is done through IOT base system. In this project the parameters of the motor is continuously recorded and send to the user operator through the cloud internet to end user application module. Keywords: Induction Motor, IOT, Speed Control, Monitoring etc.
Quality Control Outprints of Kamala (Nelumbo nucifera Gaertn.): An Aquatic Medicinal Plant
Authors: Lachita CV , Mallya Suma V , Naik Thejaswi , Prabhu Suchitra
Published: May 2022

Introduction: Kamala(Nelumbo nuciferaGaertn.) is an emergent perennial acquatic plant, having diverse medicinal properties. Many parts of this plant like petals, stamens, seeds are used in medicine. Materials and methods: Fresh flowers of Kamala(N. nucifera Gaertn.) were procured from their natural habitat macro-microscopy, physicochemicsl standards, phytochemical study, HPTLC were carried out as per standard protocol. Results: Histological study on drug shows air sacs and pollen grains of varied shape and size. The drug found to contain high amounts of carbohydrates, flavanoids, tannins. HPTLC, has given different peaks at short and long UV.  Conclusion: Pharmacognostic standards of test drug recorded represent quality out prints of this drug.

(Key words: Kamala( Nelumbo nucifera Gaertn.), Pharmacognosy, Standardisation)
Essential oils: As Potential Larvicides
Authors: Gupta Meenakshi , Gupta Diptee
Published: May 2022

Multiple synthetic products are used against mosquitoes to kill them and inhibit the transmission of these vector-borne diseases. The continuous use of these products produces detrimental effects on the environment and non-target organisms, which also develops resistance in the mosquito. In the last few decades, there has been a continuous exploration of herbal extract-based insecticides. These plants extract essential oils that have emerged as a potential eco-friendly alternative for the killing of larvae, the immature form of adult mosquitoes. In this review article, we focused on the larvicidal activity (LC50 values) of plant extracts obtained from various parts of plants. We evaluated results obtained from numerous essential oil larvicidal activities against prominent vectors belonging to the genera Anopheles, Aedes, and Culex, among others, that had been reported in various scientific data bases. The mode of action of these plant extracts are also discussed with reference to insecticidal activity. The major limitation of essential oils with their overcome solutions through formulation development is also highlighted. This review article reported that essential oils are potential substitutes for the development of larvicides, which may be employed in vector-borne illness control programmes. Overall, this remarkable summary and organization of data may be used to design, develop, and optimise herbal-based formulations with potential larvicidal efficacy.

Keywords: Essential oils; Larvicidal Activity; Herbal extract; Vector born-diseases.
Preparation and evaluation of moisturizing sheet mask of Lady Finger (Abelmoschus esculentus (L.) Moench) extract
Authors: Nurussakinah , , Marbun Novarianti , Fhitriana Suzan , Leny Leny , Daeli Yedidiyanti
Published: May 2022

Lady finger (Abelmoschus esculentus (L.) Moench) pod contain polyphenolic compounds, carotene, folic acid, thiamine, riboflavin, niacin, vitamin C, oxalic acid, and amino acids. Lady finger seed contain polyphenolic compounds, mainly oligomeric catechins and flavonol derivatives, protein (i.e., high lysine levels) and oil fraction (in particular, its derived oil is rich in palmitic, oleic, and linoleic acids). This study aimed to formulate a sheet mask of Lady Finger extract, and examining its moisturizing effect on volunteers' skin. This was an experimental study, which conducted by maceration of Lady Finger simplicia, then formulated the essence into sheet mask sheet preparation. Lady Finger extract was varied in 3%, 5% and 7% concentration. Evaluation of preparation include of the quality of the preparation (organoleptic, homogeneity, pH value, and stability). Sheet mask was then examined for its irritation test and effectiveness as moisturizer on volunteers skin. Moisturizing effect was seen each week for 4 weeks treatment by using it twice a week. The results showed that all sheet masks were homogeneous, had pH of 5.6-6.1, stable for 12 days of storage by using cycling test method, and did not irritate the skin. Moisturizing effect of Lady Finger extract sheet mask at 7% concentration was more effective than other concentrations in terms of increasing the water content by 37.36% and smoothness by 40.02%. It can be concluded that Lady Finger (Abelmoschus esculentus (L.) Moench) extract can be formulated as an moisturizing sheet mask and 7% concentration of Lady Finger extract sheet mask preparation showed the best moisturizing activity.

Keywords: Moisturizing, Sheet Mask, Lady Finger, Extract
Development and Validation of Extractive Spectrophotometric Method for Estimation of Hydroxychloroquine Sulphate by using Smartphone Application
Authors: Bhati Kamini Narendrasinh , Mashru Rajashree
Published: May 2022

A simple, sensitive, accurate, precise and reproducible extractive spectrophotometric method was developed for estimation of Hydroxychloroquine Sulphate (HCQS) in bulk and pharmaceutical dosage form. The method is based on formation of ion pair complex of Hydroxychloroquine Sulphate with Bromocresol green dye in acidic medium. This complex extracted in chloroform and measured quantitatively at 421nm for estimation of Hydroxychloroquine Sulphate present in the sample. In this method estimation was also done by using Smartphone Application known as PhotoMetrix pro. Beer Lambert’s law obeyed over a range of 2-10 μg/ml for HCQS by UV spectrophotometric (r²=0.9988) and by SmartPhone Image analysis (r²=0.999) method. The developed method was successfully applied for estimation of Hydroxychloroquine Sulphate in three commercial product tablet dosage form without interference from common additives. The assay was found to be 100.09%, 100.8%, 98.6% by UV and 99.2%, 101.46%, 101.1% using PhotoMetrix for three formulation containing Hydroxychloroquine Sulphate. The developed method was also validated according to ICH Q2 guideline for linearity, range, accuracy, and precision. Comparison for both method UV and PhotoMetrix done by performing t-test, result shows that there is no significant difference between both method so PhotoMetrix can be used as alternative to UV for routine analysis of Hydroxychloroquine Sulphate.

Keywords: Hydroxychloroquine Sulphate, Bromocresol green, Potassium Hydrogen Phthalate buffer, UV spectrophotometric, PhotoMetrix.
Surfaces of congruent sections of pendulum type on cylinders with generatrix superellipses
Authors: Alborova Lana A. , Strashnov Stanislav V.
Published: May 2022

In 1972, I.I. Kotov proposed to separate the surfaces of congruent sections into a separate class and to include the surfaces of plane-and-parallel translation, surfaces of revolution, carved surfaces of Monge, cyclic surfaces with a generatrix circle of constant radius, rotative, spiroidal, and helical surfaces in it. The aim of the research is to obtain generalized parametric equations of surfaces of congruent sections of the pendulum type on right cylinders with plane-and-parallel translation of movable rigid superellipses. Analytical geometry methods are used. Computer systems MathCad and AutoCAD are applied to visualize surfaces. The results consist in the derivation of parametric equations of the studied surfaces in a general form convenient for the use of computer modeling methods. The technique is demonstrated on five examples with congruent mobile superellipses. The possibility of using obtained surface shapes in parametric architecture, free-form architecture, and in shaping of the surfaces of some technical products is noted.
Method for Assessing the Impact of Creating a New Industrial Infrastructure on the Industrial and Socio-Economic Development of Regions
Authors: Burtseva T. A. , Akhmadov A. R.
Published: May 2022

The article presents the results of a study that substantiates the effectiveness of creating new industrial enterprises based on clusters, industrial parks and technology parks in the regions of Russia for their development. The authors proposed a method that allows using authoritative national ratings and the author’s rating of the regional new industrial infrastructure to quantify the impact of the creation of new industrial enterprises in the region on the socio-economic situation of the regions and their environmental situation. The advantages of the method include its reliability and objectivity, information security. As a result, the conclusions are substantiated: the created technology parks, clusters and industrial parks play a significant role for the development of the industry of the regions, improving the environmental situation and accelerating socio-economic development, but the process of creating industrial enterprises using a new industrial infrastructure requires intensification. The results obtained will contribute to solving the problem of measuring the effectiveness of the development and functioning of regional industrial systems.
Illegal lotteries and a large outlaw economy in a developing country
Authors: Sonsuphap Rattaphong
Published: May 2022

This study aims to understand the illegal lottery businesses from economic, political, and social perspectives in Chiang Rai, Nakhon Ratchasima, Rayong, and Phuket provinces of Thailand, which have contributed to the outlaw economy. The study used qualitative methodologies to determine why illegal lotteries continue to exist and if members of the lower class, such as farmers, workers, and vendors in marketplaces with low incomes and education, were the primary contributors to their unlawful existence. The results showed that the cash flow of the illegal lottery was 0.91% of 2019 Thailand’s GDP and 0.93% of 2021 Thailand’s GDP (Center for Gambling Studies, 2019; Office of the National Economic and Social Development Council [NESDC], 2022), 5.10% of the government fiscal year in 2019, and 4.56% of the government fiscal year in 2021. The Budget Bureau has been the main source of revenue for community leaders such as politicians, government officials, and national or local authorities. In Thailand, large hidden organizations have administered and regulated illegal lotteries. Because of this, policy changes or flexibility are very important for the domestic market mechanism and the gambling industry in terms of the global setting
Exponential stability of linear systems under a class of Desch-Schappacher perturbations.
Authors: Ouzahra Mohamed , Alaoui Safae El
Published: May 2022

In this paper we investigate the uniform exponential stability of the
system $\frac{dx(t)}{dt}=Ax(t)-\rho
Bx(t), \; (\rho >0), $ where
the unbounded operator $A$ is the infinitesimal generator of a linear
$C_0-$semigroup of contractions $S(t)$ in a Hilbert space $X$ and
$B$ is a Desch-Schappacher operator. Then we give sufficient
conditions for exponential stability of the above system. The obtained
stability result is then applied to show the uniform exponential
stabilization of bilinear partial differential equations.
Severe pulmonary hemorrhage in a 3-week old neonate with COVID-19 infection: A case report
Authors: Al-Assaf Anood , Ellithy Khaled , Mehta Tejas , Aljbawi Walid , Ali Hossamaldein , Soliman Ashraf , Amri Mohammed Al , Nashwan Abdulqadir
Published: May 2022

This is a 3-week-old female, her presenting complaints were low-grade
fever and a blocked nose for one day. Eventually, she developed
progressive desaturation, hypotension, and poor perfusion due to severe
pulmonary hemorrhage. Then, she developed cardiac arrest and was
declared dead.
Intermittent chronic telogen effluvium with an unusual dermoscopic finding
Authors: saki nasrin , Aslani Fatemeh Sari , Sepaskhah Mozhdeh , shafiei mohadese , alavizadeh sara , Hosseini Seyed Ali , Ahramiyanpour Najmeh
Published: May 2022

Various conditions, including infections, can cause telogen effluvium
(TE). One of them is coronavirus disease 2019 where hair loss usually
begins between two and twelve weeks after the illness. Here, we present
the case of a 17-year-old girl with having a history of such attacks
since childhood.
Ablation Index-guided high-power ablation for superior vena cava isolation in patients with atrial fibrillation
Authors: chu yingjie , cui luqian , dong shujuan , Li Jingchao , Yu Haijia , Song Huihui , han yongmei
Published: May 2022

Introduction: The ablation index (AI)-guided high-power
ablation for pulmonary vein isolation (PVI) appears to be a novel
strategy in treating atrial fibrillation (AF). This study aimed to
evaluate the feasibility and safety of superior vena cava isolation
(SVCI) by using an AI-guided high-power ablation strategy among patients
with AF after PVI. Methods and Results: Data from 53 patients
with AF were collected. Mapping and ablation of SVC were performed after
PVI. The ablation power was set to 45 W and the ablation procedure was
guided by AI. The SVC was divided into six segments in a cranial view.
Applications and locations of radiofrequency (RF) were recorded. The RF
applications and AI values in different SVC walls were compared and
analyzed. SVCI was performed in 46 patients and electrical SVCIs were
successfully achieved in all patients with a mean of 7.6 ± 2.9 RF
applications. The mean time of the SVCI procedure was 9.5±4.5 min. The
RF applications were located on different walls (anteroseptal anterior
wall, 20/46 sites [43.5%]; posteroseptal wall, 38/46 sites
[82.6%]; posterior wall, 40/46 sites [87.0%]; anterior walls,
37/46 sites [80.4%]; anterolateral wall, 27/46 sites [58.7%];
posterolateral wall, 23/46 sites [50%]). The mean AI value in
septal, posterior, and anterior walls was higher than that of the
lateral wall (392±28 vs 371±37, P < 0.001). There was no
complication in any cases. Conclusion: AI-guided high-power
ablation is a feasible and safe strategy for performing SVCI. The RF
applications and AI value in different SVC walls varied.
Correction of anterior open bite of varying severity using clear aligner therapy- a case series
Authors: Sabouni Waddah , Venugopal Adith , Adel Samar , Vaid Nikhilesh
Published: May 2022

In open bite cases, a comprehensive diagnostic differentiation is
crucial in determining the best corrective therapy. In non-surgical open
bite treatment, fixed appliances, either labial or lingual, are usually
employed. With the addition of extra-radicular screws, more
sophisticated orthodontic movements may now be performed without the
necessity for orthognathic surgery.
Chorea revealing celiac disease: cause or coincidence?
Authors: Mhiri Mariem , Hassine Anis , Dhia Rihab Ben , Naija Salma , Aissi Mouna , Amor Sana Ben , Frih-Ayed Mahbouba
Published: May 2022

A number of neurological disorders have been reported to be associated
with celiac disease.We reported the case of a patient aged 43 years
presents for choreic movements. All the etiologic report was negative
except serology of celiac disease positive etiology and gastric biopsy
confirming the disease
Adaptive selection and reshaping of the genetic structure of an immune gene in invasive Lithobates catesbeianus
Authors: Zhang Jiaqi , wang pen , Xu Chunxia , Liu Xuan , Wang Siqi , Yang Xuejiao , Hou Xianglei , Li Yiming
Published: May 2022

When alien species enter new environments, they face new challenges.
They encounter new predators, parasites, or pathogenic bacteria, which
leads to the rapid evolution of invasive species to adapt to new
habitats, where immune-related genes play a significant role. Lithobates
catesbeianus is one of the worst invasive species in the world; it
rapidly spread worldwide in the 19th century and invaded China in the
1950s. We predicted the possible transmission routes of bullfrogs in
China through microsatellite loci and clustered the populations at
different points. We studied the adaptive selection and drift reshaping
of the genetic structure of an immune genetic major histocompatibility
complex (MHC) in invasive bullfrogs in 23 Chinese invasive populations
(13 island and 10 mainland sites) and two American populations (Kansas
and California). The Chinese bullfrog populations were divided into 6
clusters by microsatellite structure, and the MHC diversity in each
cluster was different. The genetic diversity of both microsatellite and
MHC genes decreased due to the bottleneck effect and the rate of
diversity loss at functional and neutral loci, and there was no
significant difference. We found that two MHC alleles were endemic in
Chinese populations, which corresponded to distinct functional
supertypes. We also analyzed the impact of environmental factors and
island effects on the diversity of MHC genes. These results indicate
that rapid evolution plays an important role in maintaining functionally
important MHC variation during the bullfrog invasion process and provide
evidence that low genetic diversity can result in successful invasion.
Longstanding Resistant Hypertension and Posterior Reversible Encephalopathy Syndrome Induced by Carbamazepine in a Patient with SLE: A Case Report and Literature Review
Authors: Alsultan Mohammad
Published: May 2022

We described SLE- patient with long- term RHTN, who presented with PRES
syndrome, and finally diagnosed as carbamazepine induced HTN. A
literature review shows only three patients with neurologic deficit in
the context of carbamazepine induced HTN. This is valuable to always
exclude drugs effects in RHTN.
Misdiagnosis of Ewing’s sarcoma, A tragedy of a young female initially diagnosed with chronic osteomyelitis and ended with disarticulation (Case report)
Authors: Elbahri Hassan , Abdulkarim Mohamed , Gashi Y. , Abd-Elmaged Hozifa
Published: May 2022

We report a case of a 9-year-old girl with Ewing’s who was initially
thought to have osteomyelitis. As part of osteomyelitis management, an
attempt of drilling the cortex has paved the way for the tumor to extend
to all thigh compartments which was beyond salvage. Disarticulation was
the final result.
Characteristics and antiproliferative properties of myrica rubra seed oil
Authors: DONG Didi , Xu Feng , WANG Hongfei
Published: May 2022

Myrica rubra seed oil (MRSO) is a by-product of comprehensive processing
and utilization of myrica rubra and has high nutritional value to human
body. However, there are few researches on odor, physicochemical
properties, stability, and functional nutrition of MRSO, especially
compared with other vegetable oils. The characteristics of MRSO in terms
of odor, physical and chemical indicators, fatty acid composition, etc.,
compared with other vegetable oils were studied in our paper. In
addition, Oxidative stability and antiproliferative activity of MRSO
were studied. The research showed that MRSO maintained lower free fatty
acids content in comparison with the other vegetable oils, and was rich
in unsaturated fatty acids and contained 2.48% of C22:2, which was not
found in other vegetable oils. MRSO had the greatest effects on
inhibiting the growth of HepG-2 and HT-29 by as much as 46% and 57% at
96 h. The findings demonstrated that MRSO is an edible oil with high
nutritional value, and can be further processed to obtain oil products
with high added value.
What shapes the gut microbiome of lizards from different habitats?
Authors: Vasconcelos Diana , Harris David , Moreira Isabel Damas , Pereira Ana , Xavier Raquel
Published: May 2022

Host-gut microbiota interactions are complex and can have a profound
impact on the ecology and evolution of both counterparts. Several host
traits such as taxonomy, diet and social behavior, and external factors
such as prey availability and local environment are known to influence
the composition and diversity of the gut microbiota. In this study, we
investigated the influence of taxonomy, sex, host size, locality/habitat
on gut microbiota diversity in five lizard species from two different
sites in Portugal. We also analyzed the potential levels of microbial
transmission between species that live in sympatry and syntopy. We
studied Podarcis bocagei and Podarcis lusitanicus from northern Portugal
(Moledo); and two invasive species, Podarcis siculus and Teira dugesii,
and the native Podarcis virescens from Lisbon. We used a metabarcoding
approach to characterize the bacterial communities from the cloaca of
lizards, sequencing the V4 region of the 16S rRNA. Habitat/locality was
found to be the main driver of the differences in composition and
structure of gut bacterial communities of the studied lizards, with host
effects more evident at finer taxonomic scales. Additionally, lizards
from urbanized environments had higher microbiome diversity than lizards
from rural areas. We detected a significant positive correlation between
size and gut bacterial alpha-diversity in the invasive species P.
siculus, which could be due to higher exploratory behaviours. Moreover,
estimates of bacterial transmission indicate that P. siculus may have
acquired a high proportion of local microbiota. These findings indicate
that a diverse array of host and environmental factors can influence
lizards gut microbiota.
Extended hydrologic impacts of karst discharge zone confinement - a modeling study
Authors: Ohmer Marc , Liesch Tanja , Goldscheider Nico
Published: May 2022

Karst springs are the natural outflow of karst water to the surface.
These springs occur where the water table can reach the surface
unimpeded. This study examines the effect of alluvial deposits with
varying thickness and permeability, covering the main outlet (karst
spring) of a karst network on karst drainage (e.g., development of the
karst water, drainage patterns, conduit-matrix interaction) as a result
of a positive base level shift. This was realized with a numerical
conceptual model (FEFLOW) of a hypothetical karst aquifer with 6 model
configurations (inactive vs. active conduit flow, free vs. confined
spring conditions with 20 m and 50 m sediment cover, respectively, with
low and high hydraulic conductivity). Conduit flow and coupled
conduit-matrix interactions were incorporated into the model with
one-dimensional discrete feature elements. The results show that the
permeability of the sediments has a more distinctive effect on conduit
discharge than their thickness. The conduit network significantly
contributes to the drainage even with a fully confined spring outlet.
The conduit system acts as a water collector from the matrix in the
recharge zone. The buried outlet increases the hydrostatic pressure
farther along the conduit, and water is pushed upwards back into the
matrix in the vicinity of the stratigraphic contact. Depending on the
depositional setting, this results in the evolution of one to multiple
new flow systems towards new potential spring sites. The results
obtained here provide insight into the likely responses of natural karst
systems.
Chinese cultural soft power: A case study of Bosnia and Herzegovina
Authors: Stevic Ljiljana
Published: May 2022

This paper analyses the impact of Chinese public diplomacy and soft power
(cultural soft power) on the public perception in Bosnia and Herzegovina. We
have tested the three specific images China aims to project in
Bosnia-Herzegovina: China as an ancient civilization, a leader of the
developing countries and a responsible partner in the international
community. We will see whether cultural soft power, applied by means of
Confucius Institutes, academic exchange programs and think tanks, has an
impact on the public perception in Bosnia and Herzegovina. The first part
tackles the theoretical framework of public diplomacy, soft power and
cultural diplomacy. The second part delineates the institutional, diplomatic
and regulative framework of soft power and introduces the stakeholders, i.e.
academic exchange and Confucius Institutes. The final part analyzes the
survey and interviews and presents the results as to how these various
public diplomacy tools are shaping the perception of China in
Bosnia-Herzegovina. The paper concludes by arguing that Chinese public
diplomacy produces soft power in Bosnia-Herzegovina, which is in turn
positively perceived.
A variant of Zinner syndrome presenting with terminal hematuria: A case report
Authors: Stankov Maja , Basta-Nikolic Marijana , Lukac Sonja , Adjic Ivan , Bogdanovic Jovo
Published: May 2022

Introduction. Zinner syndrome is a rare congenital malformation characterized
by ipsilateral renal agenesis or hypoplasia, seminal vesicle cysts, and
ejaculatory duct obstruction. Patients are usually asymptomatic or develop
unspecific symptoms. Case Report. We present a case of a 22-year-old male
patient who presented with painless terminal hematuria. The patient denied
trauma or other urinary tract symptoms. Magnetic resonance imaging of the
abdomen and pelvis revealed a right renal hypoplasia, a tortuous dilated
right ureter draining into polycystic right seminal vesicle, and a dilated
ejaculatory duct. Conclusion. The size of the seminal vesicle cyst and
symptoms affect the treatment. Asymptomatic cysts may be treated
conservatively, while cysts that cause symptoms are often an indication for
surgical treatment, due to the possibility of infertility caused by the
obstruction of the ejaculatory canal. Magnetic resonance imaging has
high-resolution properties providing excellent presentation of anatomical
relationships and pathology which is extremely important in case of the need
for surgical treatment.
Audit Partner Industry Specialization and the Cost of Debt: Evidence from Thailand
Authors: Sanoran Kanyarat (Lek)
Published: May 2022

Previous research reports a lower cost of debt when auditors are industry specialists at the national- and city-levels and at the firm- and office-levels. This study examines whether the cost of debt decreases with auditor industry specialization at the engagement partner level. Most audits are conducted on private companies and audit partners mainly gain industry expertise on private company audits. This paper uses data from public and private companies in Thailand and investigates the moderating effects of company type and the global financial crisis (GFC) on the association between auditor industry specialization and the cost of debt. The results indicate that audit partner industry specialization is negatively associated with the cost of debt only in the GFC period. In contrast to findings from prior studies, I find no additional benefit from hiring an industry specialist during the non-crisis period.

JEL Classifications: G21; M42.
Acceptance of Murine Islet Allografts Without Immunosuppression in Inguinal Subcutaneous White Adipose Tissue Pretreated With bFGF
Authors: Nakafusa Yuki , Nitta Naoyoshi , Ishii Kazunari , Shirasu Naoto , Iwamoto Takahiro , Nemoto Takayuki , Nakamura Masafumi , Goto Masafumi , Iwata Hiroo , Taniguchi Masaru , Yasunami Yohichi
Published: May 2022

Prevention of immune rejection without immunosuppression is the ultimate goal of transplant immunobiology. One way to achieve this in cellular transplantation, such as with islet transplantation, is to create a favorable local environment at the transplant site. In the current study, we found that C57BL/6 mice with streptozotocin-induced diabetes remained normoglycemic for >1 year after transplantation of BALB/c islets without immunosuppression when the inguinal subcutaneous white adipose tissue (ISWAT) was the site of transplantation and when the site was pretreated with basic fibroblast growth factor. Mechanistically, mesenchymal stem cells (MSCs) expanded in the ISWAT after the treatment was found to produce transforming growth factor-β (TGF-β), and prevention of islet allograft rejection could be achieved by cotransplantation with syngeneic MSCs isolated from the ISWAT after the treatment, which was abolished by anti–TGF-β antibody treatment. Importantly, TGF-β–producing cells remained present at the site of cotransplantation up to the end of observation period at 240 days after transplantation. These findings indicate that prevention of islet allograft rejection without immunosuppression is feasible with the use of syngeneic TGF-β–producing MSCs expanded in the ISWAT after the treatment with bFGF, providing a novel strategy for prevention of islet allograft rejection without immunosuppression.
Effect of the Sample Preparation and Light-curing Unit on the Microhardness and Degree of Conversion of Bulk-fill Resin-based Composite Restorations
Authors: Braga SSL , Schettini ACT , Carvalho ELO , Shimokawa CAK , Price RB , Soares CJ
Published: May 2022

Objective

To evaluate the effect of the sample preparation and light-curing units (LCUs) on the Knoop hardness (KH, N/mm2) and degree of conversion (DC, %) of bulk-fill resin-based composite restorations.

Methods

Two molds were made using human molar teeth embedded in acrylic resin. One was a conventional tooth mold where the molar received a mesio-occluso-distal (MOD) preparation. In the other, the tooth was sectioned in three slices (buccal, middle, and lingual). The center slice received a MOD preparation similar to the conventional mold. Both tooth molds were placed in the second mandibular molar position in a Dentoform with a 44-mm interincisal opening. Restorations were made using Opus Bulk Fill (FGM) high viscosity bulk-fill resin-based composite (RBC) and light cured using two different lights: VALO Cordless (Ultradent) and Bluephase G2 (Ivoclar Vivadent). The RBC was placed in one increment that was light-cured for a total of 80 seconds (40 seconds at the occluso-mesial and occluso-distal locations). The RBC specimens were then prepared as follows: EmbPol – tooth mold specimen was embedded in polystyrene resin and polished before testing; Pol – tooth mold specimen was not embedded, but was polished before testing; NotPol – sectioned tooth mold, specimen not embedded nor polished before testing. The KH was measured in different depths and regions of the specimens, and the DC was measured using Raman spectroscopy.

Results

The results were analyzed using a 2-way analysis of variance (ANOVA) or repeated measures followed by the Tukey post-hoc test (α=0.05). The preparation method (p<0.001), depth of restoration (p<0.001), and the interaction between method and depth (p=0.003) all influenced the KH values. Preparation method (p<0.001), tooth region (p<0.001), and the interaction between method and tooth region (p=0.002) all influenced DC values. The KH values were reduced significantly from the top to the bottom of the restorations and also at the proximal box when compared with the occlusal region. This outcome was most significant in the proximal boxes. The NotPol method was the most effective method to detect the effect of differences in KH or DC within the restoration. A lower DC and KH were found at the gingival regions of the proximal boxes of the restorations. When the KH and DC values were compared, there were no significant differences between the LCUs (KH p=0.4 and DC p=0.317).

Conclusion

Preparation methods that embedded the samples in polystyrene resin and polished the specimens reduced the differences between the KH and DC values obtained by different preparation techniques. The NotPol method was better able to detect differences produced by light activation in deeper areas.
Enhanced corrosion resistance of 17-4 PH stainless steel fabricated by laser powder bed fusion in H2SO4 solution
Authors: Shoushtari Mohammadreza Tavakoli , Yeganeh Mahdi , Kotoki Davoud Ghasemi
Published: May 2022

The purpose of this study is to examine the microstructure and corrosion performance of martensitic stainless steel 17-4 PH produced by laser powder bed fusion (LPBF) and its corresponding rod specimen in sulfuric acid. Based on a microstructural analysis, the LPBF alloy contained melt pools with an ultrafine cellular structure and uniform distribution of elements, including Nb. The LPBF process significantly improved the corrosion resistance of the 17-4 PH stainless steel alloy in sulfuric acid. The alloy manufactured by LPBF had a charge transfer resistance of at least 7 times that of the Rod counterpart and a corrosion current density that was 4 times lower than Rod. The homogeneous distribution of elements during the solidification process improved the electrochemical performance of LPBF 17-4 PH stainless steel due to the development of gentle galvanic cells compared to Rod one.
Introduction
Authors: Saba Roberto
Published: May 2022

This introductory chapter provides an overview of how the United States and Brazil, the two major independent slave societies in the Western world, were the main beneficiaries of the expansion of slavery. Slavery fueled the economies of both countries, producing valuable agricultural commodities for the global market. Its efficiency and profitability notwithstanding, slavery eventually collapsed in these two countries. The United States, shaken by a bloody separatist war and the mass flight of enslaved people from Southern plantations, led the way in the mid-1860s. Brazil, agitated by a mass abolitionist movement that included free and enslaved people, followed suit in the late 1880s. As slavery unraveled in the western hemisphere, Americans and Brazilians came together to stimulate and direct this transformation. This book traces how a cosmopolitan group of antislavery reformers connected these two emancipation processes to boost capitalist development in both countries. It argues that modern capitalism emerged not from the remaking of slavery in the nineteenth century but from its unmaking. Between the 1850s and the 1880s, American and Brazilian antislavery reformers succeeded in creating economic systems that surpassed anything that slave societies had ever created.
Distant Slave Empires
Authors: Saba Roberto
Published: May 2022

This chapter discusses US–Brazilian relations in the 1840s and 1850s. It reveals that no matter how boastful Southern slaveholders had become, they could not establish an effective foreign policy in defense of slavery or promote it as a viable system for the future of capitalism. Proslavery Southerners' foreign policy alienated the Brazilian elite and ruined any possibility of a proslavery alliance emerging. Antislavery Northerners, on the other hand, succeeded in bringing Brazilian society closer to the Union by portraying Brazilian slaveholders as progressive planters willing to phase out slavery and modernize their economy. By the end of the 1850s, American antislavery reformers had planted the seeds of a transnational cooperation that would isolate the slave South and set the stage for a transition to free labor in Brazil.
Brave New World
Authors: Saba Roberto
Published: May 2022

This chapter looks at the trajectories of Brazilian men who visited, studied in, or worked in the United States during the 1870s. From the perspective of visitors from the only remaining independent slave society in the Western world, the downfall of slavery and the triumph of free labor in the United States had opened opportunities for capitalists to multiply railroads, expand manufacturing, modernize agriculture, and build a powerful financial machinery. The Brazilians understood that free labor in the form of the wage system was the force quickly integrating a war-ravaged country and transforming it into a capitalist power. While celebrating wage labor, the enthusiasts of the Gilded Age overlooked flagrant problems affecting American society. It became clear then that antislavery reformers favored fast economic development and territorial integration over social justice and political equality. Hence, the post-emancipation United States, regardless of its iniquities, consolidated itself as a model of capitalist development for Brazil.
Histories of Exclusion
Authors: Phillips Anne
Published: May 2022

This chapter begins with an alternative account of the beginnings of so-called modern ideas of equality. One central argument here is that the emerging understandings of equality that came to inform the self-definitions of the Western powers as the “more civilized” nations, were inextricably bound up with the violence and inequality of enslavement, colonialism, and the annihilation of indigenous peoples. Indeed, a high-minded discourse about equality coincided with the dehumanization of most of the world's inhabitants. It is not only that those articulating new ideas of equality lacked the imagination or were too bounded by their context to think of them as applying to all humans. It is also that they deployed often genetically based ideas of what it is to be human. This history casts a long shadow over the idea of equality, challenging assumptions about its birthplace as well as optimistic stories of its progress.
Justification Is Still Condition
Authors: Phillips Anne
Published: May 2022

This chapter draws on the previous chapter's observations about the historical exclusions to offer a nonfoundational account of equality that presents it as something we commit ourselves to, or claim. This challenges the idea that we recognise others as our equals because of some human property we supposedly share. The chapter treats this as a deeply flawed way of thinking about equality, for when the claim to be regarded as an equal is justified by reference to the possession of some ‘human’ property, the claim becomes conditional. It argues that any such differences are and should be entirely irrelevant. Equality is not grounded in facts about shared rationality or intelligence or dignity or shared willingness to obey the law. The chapter emphasizes that equality is not conditional on any of these and is not something to be withdrawn if people fail to meet the conditions.
Labor, Finance, and the Corporation 1890–1980
Authors: Jacoby Sanford M.
Published: May 2022

This chapter cites economists Raghuram Rajan and Luigi Zingales, who published the article “Great Reversals,” in which they showed that financialization has ebbed and flowed over time. The chapter discusses these waves, which are industrialization (1890–1929), the New Deal (1933–1973), and neoliberalism (1974–present). Financialization waxed during industrialization, waned during the New Deal, and expanded again under neoliberalism. It examines the measures of the financial development of these periods that are dominated by stock markets, including investment financed by equity issues, stock market capitalization, and the number of listed companies. It is striking to see how historical measures of inequality correspond with swings in financial development.
Testing
Authors: Mann Jenny C.
Published: May 2022

This chapter goes back to the larger historical and philosophical questions that emerge from the English trials of Orpheus. It looks at how Francis Bacon and the French philosopher and essayist Michel de Montaigne draw on Ovid's tale of Pygmalion in order to reckon with the problem of knowledge at the turn of the sixteenth century. Allusions to Orphic song in Bacon's Advancement of Learning (1605) and Montaigne's “Apology for Raymond Sebond” (trans. 1603) demonstrate, once again, the complex interactions of the enterprises of philosophy and poesis in the early modern period. In their trials of the Pygmalion myth, Bacon and Montaigne express two divergent routes for modernity and its “progress.” In pursuing these admittedly epistemological concerns at the level of rhetoric and myth, the chapter offers an adjustment to the terms by which literary studies and the history of science converge and interact.
Appeasing Labor, Protecting Capital
Authors: Anderson Elisabeth
Published: May 2022

This chapter talks about the Massachusetts labor reformers who had cause to celebrate in summer 1874. After decades of disappointing defeats, the state legislature had finally yielded to the labor movement's demand for a normal working day for women. The chapter points out how the law restricted the daily working hours of women and minors to ten, noting of exceptions that were allowed in the event of mechanical disruption, but the workweek could never exceed sixty hours. The chapter considers Massachusetts on par with the United Kingdom, where the ten-hour day for women and children had been on the books since 1847. The law's supporters knew from studying the history of labor legislation in England as well as their own state that labor laws were often ignored in the absence of strong enforcement mechanisms.
Conclusion to Part II
Authors: Anderson Elisabeth
Published: May 2022

Imperial Germany, Massachusetts, and Illinois all built factory inspection systems in the last quarter of the nineteenth century. These enabled the state to take a direct and proactive role, not only in unearthing labor violations and implementing labor laws, but in identifying problems requiring further legislative attention. The state’s response to the social question of the nineteenth century thereby became more routinized and in some ways less contentious. The countermovement against laissez-faire liberalism was on its way to becoming institutionalized and bureaucratized....
Conclusion
Authors: Anderson Elisabeth
Published: May 2022

This chapter demonstrates that elite and middle-class reformers are the main characters in regulatory welfare's origin story. Across political and institutional contexts as varied as absolutist Prussia, July Monarchy France, Imperial Germany, and Progressive era Illinois, upper- and middle-class policy entrepreneurs played a pivotal role in shaping worker protection policy outcomes. The chapter discusses the policy entrepreneurs that took the initative and the laws enacted that reflected their ideas and priorities. The chapter explores how the middle-class reformers' influence was shared with, or even eclipsed by, a mobilized and institutionally empowered working class. At other times, such as 1830s–1940s Massachusetts, reformers' individual impact is difficult to distinguish from a more diffuse cultural consensus.
Pengaruh Pembelajaran Berbasis Masalah Terhadap Kemampuan Berpikir Kritis Matematis Siswa SMA
Authors: . Zulkarnain , Fatimah Siti , Dahlan Jarnawi Afgani
Published: May 2022

Penelitian ini bertujuan untuk menelaah kemampuan berpikir kritis matematis siswa yang belajar melalui pembelajaran berbasis masalah dan siswa yang belajar melalui pembelajaran biasa. Penelitian ini merupakan penelitian kuasi eksperimen dengan desain kelompok kontrol non ekivalen. Populasi dalam penelitian ini adalah seluruh siswa kelas X SMAN 1Rambah Samo tahun pelajaran 2013/2014. Sampel penelitian diambil dua kelas yaitu kelas eksperimen dan kelas kontrol dengan menggunakan teknik purposive sampling. Instrumen dalam penelitian ini adalah tes dan non tes. Instrumen tes berupa soal tes kemampuan berpikir kritis matematis dan lembar observasi. Berdasarkan analisis data menggunakan SPSS 16.0 penelitian menemukan bahwa kemampuan berpikir kritis matematis siswa yang belajar melalui pembelajaran berbasis masalah lebih baik dari pada siswa yang belajar melalui pembelajaran biasa. Ditinjau dari kemampuan awal matematis siswa, terdapat perbedaan peningkatan kemampuan berpikir kritis matematis siswa yang belajar melalui  pembelajaran berbasis masalah.
Analisis Pemodelan Sistem Informasi Manajemen Sekolah pada SMA Gamaliel Makassar
Authors: Madonza Paquita , Liem Samuel Michael , Tungadi Astrid Lestari
Published: May 2022

SMA Gamaliel Makassar sebagai salah satu sekolah menengah atas swasta berakreditasi A yang ada di kota Makassar belum mampu mengolah data yang ada menjadi informasi yang berkualitas. Pengolahan data akademik maupun non akademik pada SMA Gamaliel Makassar selama ini tidak maksimal diakibatkan oleh entitas yang mengelola data kegiatan operasional terpisah, proses pengolahan dan pengumpulan data yang tidak lengkap masih belum efektif dan efisien membuat pengaksesan informasi sulit dan membutuhkan waktu lama, penyimpanan data tidak fleksibel dan jarang diperbarui, dan pengaksesan data terbatas pada entitas tertentu dan tidak dapat dilakukan secara real time. Hal ini menyebabkan informasi operasional sekolah yang cenderung terhambat dan berdampak pada layanan yang diberikan oleh sekolah. Pemodelan Sistem Informasi Manajemen (SIM) Sekolah bertujuan untuk mengintegrasi pengolahan data dan memperlancar arus informasi operasional yang dibutuhkan sekolah. Analisis yang dilakukan adalah menggunakan analisis diagram tulang ikan dan pemodelan yang dilakukan adalah menggunakan pemodelan terstruktur.
Identitätskonzepte in der Literatur
Authors: Singh Sikander
Published: May 2022

Als Begriff wie als Diskurs wird Identität in der Gegenwart zunehmend einseitig ideologisch vereinnahmt und politisch instrumentalisiert. Vor diesem Hintergrund perspektivieren die Beiträge des Bandes den Terminus im Hinblick auf seinen Gehalt und seine historischen Bedeutungsdimensionen. Der Literatur ist seit dem Aufkommen national(staatlich)er Diskurse im 18. Jahrhundert eine wesentliche Rolle für die Konstitution und die Bestätigung von Identität zugefallen. Die Beiträge verfolgen diese Diskussion bis in die Gegenwart.
Characterization of 1H NMR and 13C NMR Spectrometry and Antibacterial Activities of 4-tert-Butylbenzoyl Amoxicillin
Authors: Siddiq Hadi Barru Hakam Fajar , Rashati Dewi , Azizah Siti Nur
Published: May 2022

The synthesis of 4-tert-butylbenzoyl amoxicillin has been done by reacting amoxicillin with 4-tert-butylbenzoyl chloride. The product was characterized using proton and carbon-13 spectrometry. Antibacterial activity of 4-tert-butylbenzoyl amoxicillin against Escherichia coli, Bacillus subtilis, and Staphylococcus aureus was tested using paper disk diffusion method. Results showed that 4-tertbutylbenzoyl amoxicillin had a specific spectrum activity. Antibacterial test of 4-tert-butylbenzoyl amoxicillin showed clear zones around the disc paper for Escherichia coli, Bacillus subtilis, and Staphylococcus aureus. The study results indicated 4-tert-butylbenzoyl amoxicillin has antimicrobial properties but is categorized as a less-effective antibiotic agent based on the response to bacterial growth inhibition.