bluuebunny/crossref_metadata_2025 huggingface dataset:
Pattern of Failure Among HNSCC
Authors: Shah Afsana , Kumar Dinesh , Preet Singh Govind , Shukla Pragya
Published: August 2022

Aim:

This retrospective study was conducted to evaluate the pattern of recurrence in head and neck squamous cell carcinoma (HNSCC) patients who received a definitive chemo-radiotherapy.

Materials and Methods:

In this retrospective study, the data of 308 head and neck patients from January 2015 to March 2015 were analyzed. Only patients who received definitive chemo-radiotherapy were included in the study. The pattern of recurrence was stratified based on age, gender, site involved, histopathological differentiation, stage, habitual risk factors, and treatments received.

Results:

The mean age of the patients was 51.6 years. No association in the pattern of recurrence based on age, gender, or histopathologic differentiation was found. Patients with habitual risk factors (smoking, tobacco chewing, and alcohol) showed the poorest response to chemo-radiotherapy and unresolved residual disease. Among the primary sites involved, oral cavity patients showed the poorest response with maximum cases of residual disease. In addition, patients with advanced stage remained with residual disease and have a maximum recurrence, and the difference was statistically significant. All the patients who received neoadjuvant chemo-radiation (NACT-RT) as compared to chemo-radiation (CT-RT) had residual disease. According to the pattern of recurrence, the local recurrence was the most common followed by regional and then local and regional, but the distance recurrence was the lowest.

Conclusion:

Of the patients who have received definitive chemo-radiotherapy, more than half of HNSCC had residual disease. Of the patients with no residual disease, about half of them had recurrence at follow-up. However, no association in the pattern of recurrence was found based on gender or histopathologic differentiation. Patients who have multiple habitual risk factors showed the worst outcome as compared to the patients who have a single habitual risk factor. Patients with multiple habitual risk factors have maximum cases of residual disease and maximum cases of recurrence. Among the habitual risk factors, tobacco chewing was the worst habitual risk factor for refractory residual disease and recurrence. Based on the sites, the patients with carcinoma of the oral cavity showed the worst outcome in terms of residual disease, which is followed by hypopharynx, oropharynx, and then larynx carcinoma, but the rate of recurrence does not depend on the site involved. Advanced-stage patients had a poor response and with maximum cases of recurrence. A combination of chemotherapy with radiation showed better results as compared to the radiation alone in terms of response and recurrence. As to the site of recurrence, the local recurrence was the most common, followed by regional and then distance recurrence. This study indicated that HNSCC is locally aggressive, and local failures are the most common.
Evaluation of displacements and stress changes in the maxillo-mandibular complex with fixed functional appliance skeletally anchored on mandible using miniplates
Authors: Kumar Davender , Sharma Rekha , Arora Vinni , Bhupali Nameksh Raj , Tuteja Neha
Published: August 2022

OBJECTIVES:

Fixed functional appliances (FFA) have been used for correction class II malocclusion but cause proclination of teeth. Recently, few studies have advocated the use of skeletal anchorage along with FFAs to prevent this side effect. The purpose of the study was to evaluate the stress distribution and displacements produced by miniplate anchored Forsus-fatigue resistant device on the maxilla, mandible, and the dentition in a Class II malocclusion patient by finite element analysis.

MATERIALS AND METHODS:

Cone beam computed tomography of a class II division 1 patient indicated for FFA was used to construct a 3D finite element model using MIMICS 8.11 and Hypermesh 13.0 software. Various material properties, boundary, and loading conditions were then applied. The model was analyzed for principal stress and von Mises stress in maxilla, mandible, and their dentition using ANSYS 12.1 software.

RESULTS:

In the mandible, maximum principal and von Mises stresses were seen in the cortical bone area in the symphyseal region, whereas mandibular teeth showed comparatively lesser stresses. In the maxilla, higher principal and von Mises stresses were seen in the maxillary molar region compared to the maxillary cortical bone. The entire mandible was displaced antero-inferiorly, whereas the maxilla showed a postero-superior displacement.

CONCLUSION:

Using skeletally anchored FFA results in more stresses and displacements in the skeletal structures compared to the dentition.
Factors that affect lip changes following incisor retraction in Vietnamese adults with a convex facial profile
Authors: Le Trang , Tran Phi , Tran Vy
Published: August 2022

OBJECTIVE:

This study aimed to evaluate the factors that influence lip change through the results of tooth anterior retraction by fixed orthodontic treatment in Vietnamese adult patients with a convex facial profile.

MATERIALS AND METHODS:

This prospective study included 32 Vietnamese adults who have convex facial profiles. Digital software measurements according to Arnett's analysis and the superimposition method were performed to evaluate the changes in dentoskeletal structures, and soft tissue variables included lip change. A multiple logistic regression model was applied with various explanatory variables to analyze the correlation.

RESULTS:

The study revealed a strong correlation of lip change at the site of the cervical point and incisal edge of the upper incisors, and the cervical position demonstrated a stronger correlation. The ratio between lip change and incisor retraction in patients is approximately 1:2.3 at the incisal edge and 1:1.3 at the cervical point.

CONCLUSION:

Lip change was associated with incisor retraction at the cervical and incisal edge, but it did not correlate with the rotation axis of the upper incisors.
Polymorphism analysis of myosin 1H (G/A) and P561T (C/A) genes on class I, class II, and class III malocclusion
Authors: Gullianne Bayu Rachma , Jazaldi Fadli , Soedarsono Nurtami , Soegiharto Benny M.
Published: August 2022

CONTEXT:

Besides environmental factors, genetic factors play an important role in the etiology of malocclusion. Polymorphisms of the Myosin 1H gene in orofacial muscle fibers are thought to influence the growth and development of the mandible. Growth hormone receptors are present on the growth of cartilage, especially the condyle of the mandible. The polymorphisms of the growth hormone receptor have an effect on the growth and development of the mandible. The potential of the Myosin 1H and P561T genes as bioindicators in aiding diagnosis of malocclusion is quite good based on the available literature. However, until now there has been no research that has observed genetic analysis on polymorphism-based malocclusion of the Myosin 1H and P561T genes in the Indonesian population.

AIMS:

To determine the relationship between polymorphisms of Myosin 1H and P561T genes, towards the growth and development of the mandible in malocclusion cases.

SETTINGS AND DESIGN:

Subjects were patients aged 17--45 years old with skeletal malocclusions who were undergoing or were about to undergo orthodontic treatment at RSGM-FKG UI (Universitas Indonesia's Dental Hospital), with 50 people in each group.

METHODS AND MATERIAL:

Malocclusions were determined based on radiographic analysis of the initial cephalometry using the Stainer method. DNA samples were extracted from buccal swabs and blood cells in Class I and II malocclusion while nail clippings and hair follicles extracts were used in Class III malocclusion. DNA sequence amplification was carried out using Polymerase Chain Reaction, while Genetic Polymorphism Analysis of Myosin 1H and P561T genes was performed with Restriction Fragment Length Polymorphism.

STATISTICAL ANALYSIS USED:

Pearson Chi-Square was used to analyze the Myosin 1H gene, while the Fisher Exact Test was used to analyze the P561T gene.

RESULTS:

A relationship between Myosin 1H gene polymorphism and Class I, II, and III skeletal malocclusion was found. There was no correlation between P561T gene polymorphism and Class I, II, and III skeletal malocclusion.

CONCLUSIONS:

Myosin 1H gene polymorphism is one of the risk factors for Class I, II, and III malocclusion. Extraction of DNA from hair follicles gave good results in terms of DNA quality and was a relatively easier sampling method compared to blood cell purification and buccal swabs.
Novel cephalometric parameters for the assessment of vertical skeletal dysplasia
Authors: Gandhi Kaveri Kranti , Rai Anshu
Published: August 2022

INTRODUCTION:

The accurate diagnosis of vertical skeletal abnormalities presents several challenges. Specific cephalometric parameters can be effectively used for this purpose; however, their diagnostic utility has not been fully ascertained. This study examined the effectiveness of two novel cephalometric parameters in diagnosing vertical dysplasia.

METHODS:

Orthodontic patients were divided into three study groups: average growth group (AGG), horizontal growth group (HGG), and vertical growth group (VGG). The efficacies of the sum of the angles (maxillary, mandibular, and ramal) and the height ratio (lower anterior facial height [LAFH]/upper anterior facial height [UAFH]) in identifying the different growth patterns were examined. Receiver operating characteristic curves were used to quantitatively assess diagnostic precision.

RESULTS:

A total of 150 patients were included and divided equally among the 3 study groups. The ramal and mandibular angles varied across AGG, HGG, and VGG; however, the maxillary angle and the sum of these three angles did not vary significantly. There was a significant difference in LAFH, UAFH, and their ratios among the three groups. The height ratio had a sensitivity of 88% and 92% for the diagnosis of VGG and HGG, respectively, with cutoff values of 46 and 34, respectively (P < 0.001).

CONCLUSIONS:

The height ratio values varied considerably according to facial growth patterns, suggesting its utility as a diagnostic tool for skeletal dysplasia with greater reliability for positive treatment outcomes.
Evaluation of biofilm formation on different clear orthodontic retainer materials
Authors: Hamdoon Suhad M. , AlSamak Saeed , Ahmed Mahmood Kh. , Gasgoos Saad
Published: August 2022

Aim:

To assess the chemical composition and oral biofilm formation on different types of commercially available clear orthodontic retainer materials (CORM).

Materials and Methods:

Four types of CORM commercially available were used (Clear advantage series I (CAS1), Clear advantage series II (CAS2), Endure (ES), and CENTRI FORM-clear rigid material (CFCRM)). Circular samples (12 mm diameter) of each CORM were prepared for (n = 40). Unstimulated saliva from twenty volunteers was collected. Fourier Transformation Infrared Spectroscopy (FTIR) was used for the evaluation of the chemical composition of CORM. For the quantitative assessment of oral biofilm formation, samples of each CORM were incubated for twenty-four hours, and crystal violet assay (CVA) was utilized. The degree of absorbance was measured using a spectrophotometer at 570 nm. For qualitative evaluation of oral formation, the samples of each CORM were incubated for 24 hours, and viable biofilm cells stained by acridine orange were examined under a fluorescent microscope.

Results:

FTIR findings showed that CAS2 was made of polypropylene and ES is made of polyvinyl chloride, while others were made of co-polyester. CVA results confirmed that CAS2 showed the lowest biofilm formation, which differs significantly compared to CAS1, CFCRM, and ES. No significant difference in biofilm formation was detected between CAS1, CFCRM, and ES. Viable biofilm cells staining by acridine orange showed that CAS2 demonstrated smaller microcolonies of viable biofilm cells compared with CAS1, CFCRM, and ES, which confirmed the result obtained by CVA.

Conclusions:

CAS2 showed anti-microbial activities with a decrease the in vitro biofilm formation, which may be related to its chemical composition.
The MH-WIRE, a novel coil-springe wire system
Authors: Elkolaly Mohamed A. , Hasan Hasan S.
Published: August 2022

OBJACTIVE:

The authors introduced a novel wire system aiming to achieve optimal goals of tooth movement without multiple wire changes or sophisticated wire bending.

MATERIALS AND METHODS:

The system was composed of a single wire for all phases of treatment. The archwire was composed of NiTi coil springs connecting delta-shaped segments of 0.018˝ × 0.025˝ Titanium Molybdenum Alloy (TMA) segments to fit the 0.018˝ × 0.025˝ bracket slot, or 0.022˝ × 0.028˝ TMA segments to fit the 0.022˝ × 0.028˝ bracket slot. The coil spring was closed and packed in design. The coil-spring loops were constructed with 3 mm lumen. The wires were designed in three sagittal forms and the system provided nine forms of archwires.

RESULTS:

The wire systems have been an important component of treatment since the development of orthodontic science. Over time, the philosophy has evolved from endorsing wire bending to straight-wire treatment and then to custom-made archwires.

CONCLUSION:

This wire system was designed to be used as a “single-wire for the case” across all stages of treatment to achieve the ideal goals without any biological damage.
Chordoma
Authors: Mehta Maitrik , Patel Monik , Parikh Ankita , Suryanarayan U. , Singh Jayesh , Thimmarayappa Arun , Pandya Aakash
Published: August 2022

Introduction:

Chordoma is a low-grade notochordal tumor of the skull base, mobile spine, and sacrum, which is locally invasive and tends to present late in the disease course and confers a poor prognosis. They usually recur locally and surgery is the mainstay of treatment. Radiotherapy (RT) is often given postoperatively to reduce local recurrence. The purpose of this study is to assess RT treatment given at our center for chordoma patients.

Materials and Methods:

In this retrospective analysis, 25 patients with chordoma treated with RT between 2013 and 2020 at a single institution were reviewed. Eleven patients had sacrococcygeal tumors, three had clival tumors, two had lumbar, one had sphenoid tumors, one had nasal cavity tumors, two had cervical spine tumors, and two had sellar/suprasellar tumors. Out of 25 patients, 19 patients underwent surgical excision (partial/complete) and in 6 patients only a biopsy was done. Two patients underwent recurrent surgical excision. All patients received RT either postoperative or in recurrent settings or after biopsy only. The median RT dose was 30 Grey (Gy) (range, 16–60 Gy).

Results:

On analysis, seven patients were lost to follow-up. Three patients were on follow-up till 56, 53, and 41 months and were included in a 4-year survival analysis. Eighteen patients follow-up were available. Out of 18 patients, 8 patients had died and 10 patients were alive. With the median follow-up of 37.5 months, the 4-year overall survival rate was 61.9% in 21 patients. With the median follow-up of 39 months, the 5-year overall survival rate was 55.6% in 18 patients.

Conclusions:

RT in the postoperative setup may improve the overall survival in chordoma patients. Further detailed analysis is necessary for RT dose and/or higher techniques need to be used for local control of the disease.
Dosimetric Comparative Study of Conformal Radiation Techniques in Patients with Glioblastoma Multiforme
Authors: Rather Sajad Ahmad , Khan Aijaz Ahmad , Mir Feroz Ahmad , Haq M. Muhibul
Published: August 2022

Purpose:

The purpose of the current study is to determine whether patients diagnosed with glioblastoma multiforme (GBM) who underwent radiotherapy (RT) using intensity-modulated RT (IMRT) technique were benefitting from this highly conformal treatment in terms of doses received by planning target volume (PTV) and organs at risk (OARs) in comparison to three-dimensional conventional RT (3DCRT).

Materials and Methods:

Twelve patients treated with IMRT for GBM were selected for dosimetric comparison with 3DCRT. The prescribed dose was 60 Gy in 30 fractions and seven non-coplanner beams were used in IMRT to cover 95% of target volume. The irradiated patients of GBM were retrieved and replanned with 3DCRT techniques. Dosimetric comparison was done by performing two plans for the same patient; prescription dose and normal tissue constraints were identical for both plans. The dose–volume histograms of target volumes and OAR, dose conformity, and dose homogeneity with 3DCRT and IMRT planning were compared. Statistical analysis was performed to determine the differences.

Results:

The mean conformity index was 0.99 ± 0.001 for IMRT and 0.97 ± 0.002 for 3DCRT, P = 0.001. The mean homogeneity index was 1.03 ± 0.02 for IMRT and 1.06 ± 0.009 for 3DCRT, P = 0.003, which is statistically significant. The IMRT technique enables dose reduction of normal tissues including brainstem (Dmean by 33.78 ± 5.34 and Dmax 51.84 ± 4.43), optic chiasm (Dmean by 36.92 ± 1.99 and Dmax 44.61 ± 3.72), left optic nerve (Dmean by 28.97 ± 6.51 and Dmax 46.08 ± 10.58), right optic nerve (Dmean by 31.93 ± 11.68 and Dmax 44.63 ± 13.54), left eye (Dmean by 18.66 ± 8.92 and Dmax 37.43 ± 13.47), right eye (Dmean by 14.40 ± 4.87 and Dmax 40.37 ± 11.37), left lens (by Dmax 5.45 ± 1.85), and right lens (Dmax 5.07 ± 0.63).

Conclusion:

The IMRT provides a real dosimetric advantage, especially for normal brain tissue, and in terms of target coverage. It allows treatment of tumors while respecting OARs' dose constraints. The IMRT technique shows significant advantage in PTV coverage, dose homogeneity, and conformity. In IMRT, the coverage is better where PTV was overlapping with critical OARs.
Comparison of 7th and 8th American Joint Committee on Cancer Tumor-Node-Metastasis Staging in Infiltrating Ductal Carcinoma of the Breast: A Retrospective Study
Authors: Soman Princy S. , Hemalatha A. , Nadipanna Sreeramulu P. , Raju Kalyani
Published: August 2022

Context:

The American Joint Committee on Cancer (AJCC) staging system is a very important prognostic factor for treating patients with carcinoma breast. There has been a recent change in the staging of breast cancer, from the 7th edition to 8th edition AJCC. Hence, the present study aimed to analyze the stage migration from 7th to 8th edition AJCC staging in infiltrating ductal carcinoma (IDC) and comparison of each staging system with the Nottingham prognostic index (NPI) prognostic scoring system.

Aims:

The aim is to evaluate the stage migration between the 7th and 8th edition AJCC in IDC of the breast and compare both staging systems with the NPI prognostic scoring system.

Settings and Design:

In this retrospective study, we collected the clinical and pathological data from 56 IDC cases from January 2019 to June 2021 presenting at our institute. We restaged all the cases as per the prognostic staging system (8th AJCC) and calculated the survival status with NPI as long-term (5-year survival status) follow-up of the cases was not possible.

Statistics:

Categorical data were represented in the form of frequencies and proportions. Chi-square test or Fischer’s exact test (for 2 × 2 tables only) was used as a test of significance for qualitative data. Continuous data were represented as mean and standard deviation. P value was calculated.

Results:

In this study, majority of the cases were in grade 1 and in Stage II. Among 16 cases in Stage II A, 7 (43.8%) showed down staging and 3 (18.8%) showed up staging, while 12 (70.6%)/17 cases in Stage II B showed down staging. When compared with NPI both 6th and 7th AJCC showed statistical significance.

Conclusion:

Stage migration (upstaging and down staging) was seen in the 8th edition AJCC when compared to the 7th edition AJCC. Both the staging system correlated with the NPI prognostic index. However, long-term follow-up of these patients must be done to look into the efficacy of the 8th AJCC staging system before changing the treatment protocol.
Changes in Glucose Metabolism of the Brain after Immunochemotherapy in Patients with Diffuse Large B-Cell Lymphoma on Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography
Authors: Bülbül Ogün , Göksel Sibel , Nak Demet
Published: August 2022

Objective:

Mild cognitive impairment seen after chemotherapy is called chemo brain. Neuropsychological tests mainly diagnose chemo brain, but morphological or functional imaging modalities may also contribute to the diagnosis. This study aimed to examine the change in brain fluorodeoxyglucose (FDG) uptake after immunochemotherapy in patients with diffuse large B-cell lymphoma (DLBCL).

Materials and Methods:

FDG positron emission tomography/computed tomography images performed for both staging and treatment response evaluation of patients treated with R-CHOP for DLBCL were retrospectively analyzed. It was investigated whether the FDG uptake of the brain decreased after the treatment.

Results:

There was no significant decrease in FDG uptake in the brain regions of 40 patients treated with R-CHOP compared to pretreatment. There was no significant change in brain FDG uptake after treatment between Ann Arbor Stage 1 or Stage 2 patients and Ann Arbor Stage 3 or Stage 4 patients compared to pretreatment. There was no significant change in brain FDG uptake after treatment compared to pretreatment between patients with Deauville score (DS) 1–3 and patients with DS 4 or 5 according to treatment responses. Patients with the most hypermetabolic lesion SUVmax >30.5 had significantly decreased posttreatment SUVmean in the right basal ganglia, left and right central regions, left cingulate and paracingulate cortices, right striatum, left and right frontal cortices, left occipital cortex, left and right parietal cortices, left and right precunei, and right temporal cortex.

Conclusion:

FDG uptake decreased in many brain regions after R-CHOP in patients with DLBCL whose lesions showed high FDG uptake.
Trichoblastic Carcinoma: A Cautionary Tale
Authors: Mall Aprajita , Kingsley Pamela Alice , Negi Preety , Gupta Priya
Published: August 2022

Trichoblastic carcinoma is a rare malignant hair follicle tumor. It resembles basal cell carcinoma clinically. However, various studies have emphasized the importance of differentiating between these two cancers since they have a different clinical course, which may affect treatment options and subsequent follow-up plans. Despite its aggressive behavior, there is a lack of uniform consensus on the treatment. We report the case of a 65-year-old woman with trichoblastoma with focal transformation to low-grade trichoblastic carcinoma. This patient underwent surgical excision of the carcinoma, followed by adjuvant radiation therapy in view of residual disease. The patient was disease-free for 3 years. The intent of reporting this case is to help oncologists recognize similar cases and consequently plan the treatment in a way to improve the survival of these patients.
Paratesticular Epithelioid Sarcoma
Authors: Aashita  , Sharma Rajiv , Yadav Vikas , Divya T. , Kaur Navpreet
Published: August 2022

Primary soft-tissue sarcomas of the paratesticular region are uncommon tumors comprising 1% of all adult sarcomas. Paratesticular epithelioid sarcoma (ES) is a rare subtype. Here, we report the case of a 68-years-old male with scrotal swelling who underwent high inguinal exploration and right orchidectomy. Histopathology and immunohistochemistry revealed paratesticular ES. Very few cases of paratesticular ES have been reported so far in the literature. Clinical presentation, investigations, treatment interventions, and prognosis have been discussed. As it can be confused with other benign and malignant conditions, diagnosis is often made on histopathological evaluation.
Doctors' Attitude and Satisfaction Toward Clinical Pharmacists' Role at Omdurman Military Hospital
Authors: Abudleek Mona F , Adam Mohamed E , Ahmed Kannan Omer , Yousef Bashir Alsiddig
Published: August 2022

Objectives:

This study aimed to assess the attitude and satisfaction of doctors toward clinical pharmacists' role at Omdurman Military Hospital.

Methods:

A descriptive cross-sectional study was conducted in Omdurman Military Hospital in Khartoum state, Sudan. A self-administered questionnaire was delivered to 165 doctors who had previously worked with clinical pharmacists. Data were analyzed using Statistical Package for Social Sciences. The Chi-square test was used for the data analysis.

Results:

A total of 165 filled questionnaires were returned, 84 (50.9%) of them were males, and over 50% were aged under 31 years. Around 94.6% of them agreed that the clinical pharmacist is an important and integral part of the medical team, while 89.1% believed that clinical pharmacists could improve overall patient outcomes/quality of patient care. Collectively, 85.6% of the participants had a positive attitude toward the clinical pharmacist's role. Moreover, the calculated overall satisfaction of doctors toward clinical pharmacy services showed that 83% had ahem with a high level of satisfaction. There was a significant relationship between doctors' attitude and satisfaction with the area of practice, years of experience, and the duration of work in settings where clinical pharmacy service is provided.

Conclusions:

The study identified a positive attitude and high level of doctor satisfaction with clinical pharmacist role and confidence in the abilities of the clinical pharmacists, also found that doctors overwhelmingly favor the presence of clinical pharmacists, frequently seek their advice, and feel they improve the quality of patient care.
Hyperbolic Coxeter groups and minimal growth rates in dimensions four and five
Authors: Bredon Naomi , Kellerhals Ruth
Published: August 2022

For small

n

, the known compact hyperbolic

n

-orbifolds of minimal volume are intimately related to Coxeter groups of smallest rank. For

n=2

and

3

, these Coxeter groups are given by the triangle group

[7,3]

and the tetrahedral group

[3,5,3]

, and they are also distinguished by the fact that they have minimal growth rate among all cocompact hyperbolic Coxeter groups in

\operatorname{Isom}\mathbb H^n

, respectively. In this work, we consider the cocompact Coxeter simplex group

G_4

with Coxeter symbol

[5,3,3,3]

in

\operatorname{Isom}\mathbb H^4

and the cocompact Coxeter prism group

G_5

based on

[5,3,3,3,3]

in

\operatorname{Isom}\mathbb H^5

. Both groups are arithmetic and related to the fundamental group of the minimal volume arithmetic compact hyperbolic

n

-orbifold for

n=4

and

5

, respectively. Here, we prove that the group

G_n

is distinguished by having smallest growth rate among all Coxeter groups acting cocompactly on

\mathbb H^n

for

n=4

and

5

, respectively. The proof is based on combinatorial properties of compact hyperbolic Coxeter polyhedra, some partial classification results and certain monotonicity properties of growth rates of the associated Coxeter groups.
Combinatorial growth in the modular group
Authors: Basmajian Ara , Suzzi Valli Robert
Published: August 2022

We consider an exhaustion of the modular orbifold by compact subsurfaces and show that the growth rate, in terms of word length, of the reciprocal geodesics on such subsurfaces (so named low lying reciprocal geodesics) converges to the growth rate of the full set of reciprocal geodesics on the modular orbifold. We derive a similar result for the low lying geodesics and their growth rate convergence to the growth rate of the full set of closed geodesics
A detailed look on actions on Hochschild complexes especially the degree 1 coproduct and actions on loop spaces
Authors: Kaufmann Ralph M.
Published: August 2022

We explain our previous results about Hochschild actions (2007/2008) pertaining, in particular, to the coproduct, which appeared in a different form in a work by Goresky and Hingston (2009), and provide a fresh look at the results. We recall the general action, specialize to the aforementioned coproduct and prove that the assumption of commutativity, made for convenience in a previous article (2008), is not needed. We give detailed background material on loop spaces, Hochschild complexes and dualizations, and discuss details and extensions of these techniques which work for all operations given in two previous articles (2007/2008).

With respect to loop spaces, we show that the coproduct is well defined modulo constant loops and going one step further that in the case of a graded Gorenstein Frobenius algebra, the coproduct is well defined on the reduced normalized Hochschild complex. We discuss several other aspects such as “time reversal” duality and several homotopies of operations induced by it. This provides a cohomology operation which is a homotopy of the anti-symmetrization of the coproduct. The obstruction again vanishes on the reduced normalized Hochschild complex if the Frobenius algebra is graded Gorenstein. Further structures such as “animation”, the BV structure, a coloring for operations on chains and cochains, and a Gerstenhaber double bracket are briefly treated.
Arbeitsgemeinschaft: Derived Galois Deformation Rings and Cohomology of Arithmetic Groups
Authors: Calegari Frank , Galatius Søren , Venkatesh Akshay
Published: August 2022

The purpose of the workshop was to study derived generalizations of Mazur’s deformation ring of Galois representations, and the relationship of such a derived deformation ring to the homology of arithmetic groups.
Mini-Workshop: Mathematics of Dissipation – Dynamics, Data and Control
Authors: Grundel Sara , Mehrmann Volker , Scherpen Jacquelien M. A. , Schwenninger Felix L.
Published: August 2022

Dissipation of energy — as well as its sibling the increase of entropy — are fundamental facts inherent to any physical system. The concept of dissipativity has been extended to a more general system theoretic setting via port-Hamiltonian systems and this framework is a driver of innovations in many of areas of science and technology. The particular strength of the approach lies in the modularity of modeling, the strong geometric, analytic and algebraic properties and the very good approximation properties.
Geometric Methods of Complex Analysis
Authors: Berndtsson Bo , Fornaess John Erik , Shcherbina Nikolay
Published: August 2022

The purpose of this workshop was to discuss recent results in Several Complex Variables, Complex Geometry and Complex Dynamical Systems with a special focus on the exchange of ideas and methods among these areas. The main topics of the workshop included Holomorphic Dynamics and Nevanlinna’s Theory;

L^2

-methods and Cohomologies; Plurisubharmonic Functions and Pluripotential Theory; Geometric Questions of Complex Analysis.
Enumerative Geometry of Surfaces
Authors: Borot Gaëtan , Grushevsky Samuel , Möller Martin
Published: August 2022

The recent developments in hyperbolic geometry and flat geometry in real dimension 2 formed the core of the workshop, with an emphasis on enumerative aspects. A particularly important role in this regard was played by intersection-theoretic techniques on

\overline{\mathcal{M}}_{g,n}

, the geometry of the strata of differentials, the geometry of Hurwitz spaces, topological recursion techniques, and large genus asymptotics. The workshop included an exploration of relations with similar problems in complex dimension 2, tropical techniques for enumerative problems, and relations to mathematical physics.
Slab theorem and halfspace theorem for constant mean curvature surfaces in $\mathbb H^2\times\mathbb R$
Authors: Hauswirth Laurent , Menezes Ana , Rodríguez Magdalena
Published: August 2022

We prove that a properly embedded annular end of a surface in

\mathbb{H}^2\times\mathbb{R}

with constant mean curvature

0<H\leq 1/2

can not be contained in any horizontal slab. Moreover, we show that a properly embedded surface with constant mean curvature

0<H\leq 1/2

contained in

\mathbb{H}^2 \times [0,+\infty)

and with finite topology is necessarily a graph over a simply connected domain of

\mathbb{H}^2

. For the case

H=1/2

, the graph is entire.
Convex bodies and graded families of monomial ideals
Authors: Cid-Ruiz Yairon , Montaño Jonathan
Published: August 2022

We show that the mixed volumes of arbitrary convex bodies are equal to mixed multiplicities of graded families of monomial ideals, and to normalized limits of mixed multiplicities of monomial ideals. This result evinces the close relation between the theories of mixed volumes from convex geometry and mixed multiplicities from commutative algebra.
Agro-pastoralist Resilience: Emerging Challenges towards Innovated Pathways of Climate Change Effects in Semi-arid areas of Kiteto and Kilindi Districts, Tanzania
Authors: Mung’ong’o Henry George
Published: August 2022

Climate change and its variability threaten food security globally, making life uncertain, especially among agro-pastoral communities living in fragile semi-arid areas. This trend has necessitated the exploration of the potential designed and developed pathways and the emerging challenges which  reduce the adaptive capacity of agro-pastoralists. This study investigates innovative pathways and challenges facing agro-pastoral communities in  adapting to climate change and variability effects on crops and livestock production in semiarid areas of Kiteto and Kilindi Districts. A mixed-method  research approach under a correlation case study design was employed. Primary data were collected using a household survey which  sampled 362 households, Focus Group Discussion (n=6), In-depth interviews (key informants) and field visits. Descriptive statistics and thematic  analysis were used in analysing and presenting the findings. The study results indicate that agro-pastoral communities have observed a decrease in  rainfall and an increase in temperature trends that were linked to reduced livestock, cereals and pulses crop production thus affecting the agro-  pastoral community’s food security status. The study identified innovative pathways as a response to reduced livestock, cereal and pulse crops  production which includes growing drought-tolerant crops, practising intercropping, livestock seasonal mobility, traditional grazing management  system through by-laws, pastures rotational uses and traditional water reservoirs (Mboutu). Furthermore, the study identified several challenges to  overcoming declining livestock production and crop yields, which include inadequate financial capital (91%), droughts (85.4%), unpredicted weather  patterns, (74.7%), emergency of new AJASSS Volume 4, Issue No. 1, 2022 page 20 livestock diseases (50.3%), a lack of reliable weather information  (44.2%), low livestock prices(40%), insufficient and delayed delivery of agricultural equipment (37%). All these challenges reduced the resilience  capacity of agropastoralists. To ensure the sustainability of fragile dryland communities, this study recommends purposeful institutional  intervention plans and increased income diversification as well as more capacity-building activities for increased awareness of climate change  adaptation practices in semiarid areas of Tanzania which will increase agro-pastoralists resilience.
The Impact of Covid-19 Pandemic, Liquidity and Profitability: Experience from Selected Banks in Tanzania
Authors: Magoma Anthony , Mbwambo Haika
Published: August 2022

This study aimed to examine the effects of COVID 19 pandemic on the liquidity and profitability of the Tanzanian banks that are listed in the Dar es  Salaam Stock Exchange. The study realised the objective by comparing the profitability and liquidity trend before and after the emergence of  COVID-19. The differences between these values were then statistically examined to evaluate the impact of COVID 19 on the trends before and after  the outbreak. The secondary data on the six selected banks were derived from the audited financial accounts for the six-year period (2016 to 2021),  which included the three years prior to and three years after the COVID 19 outbreak. The results showed that liquidity positions of most banks had  deteriorated. Regarding profitability, the results indicate that small sized banks experienced more declining profitability than was the case with big  banks. Furthermore, the statistical difference between the means of liquidity (proxy by liquidity ratio) and profitability (ROA) before and after COVID  19 were statistically insignificant at a 5 per cent level of significance. This implies that the impact of COVID 19 on liquidity and profitability of the  selected banks was minimal. The study provided an insight on the evidence that to a great extent the selected listed banks managed to mitigate the  impact of COVID-19 pandemic as they were not severely affected resulting from the bailout strategy devised by the Central Bank of Tanzania (BOT).
Determinants of Corporate Environmental Disclosures: A case of selected Listed Manufacturing Firms in Tanzania
Authors: Magoma Anthony , Mbwambo Haika , Kasheshi Ernest
Published: August 2022

This study looks into the factors that influence corporate environmental disclosure on the Tanzanian listed manufacturing firms. The study employs  legitimacy theory as a theoretical foundation. For this study, the explanatory variables were profitability, firm size, financial leverage, and board size.  From 2013 to 2020, data were extracted from the annual reports of five listed manufacturing firms for eight years totalling 40 data points. A  regression analysis model was used to analyse data from all of the listed manufacturing firms. According to legitimacy theory, profitability and  board size are significant parameters that positively influence environmental disclosure. Other factors, such as financial leverage and firm size,  appear to positively influence environmental disclosure, though the impact is insignificant. The study recommends that listed manufacturing firms  should improve their levels of environmental disclosure, participate in environmental activities, and ensure that more environmental information is  disclosed for all users to assess. The study recommends for public traded manufacturing firms to improve their levels of environmental disclosure,  participate in environmental activities, and ensure that more environmental information is disclosed for all users to access.
Establishing the relationship between work-family balance and work-family conflict: the role of organisational and individual factors
Authors: Amankwah Majoreen Osafroadu , Obuobisa-Darko Theresa , Pearl Setsoafia Sena Ama
Published: August 2022

The study examined the impact of organizational and individual factors on the relationship between work-family balance and work-family conflict through a survey. Data from 250 respondents were analysed using the pearson product moment correlation, ANOVA and hierarchical multiple regression. Results showed that the interaction between marital status (individual factor) and working hours (organizational factor) did not impact work-family balance. Further, a significant negative relationship exists between work-family balance and work-family conflict, gender and age. Also, marital status and working hours were positively related to work-family balance. Marital status and working hours significantly moderate the relationship between work-family conflict and work-family balance. Although working hours moderate the relationship between work-family conflict and work-family balance, it did not account for a significant variance in work-family balance. Furthermore, educational level did not significantly relate to work-family balance. These findings imply that for organizational growth to be improved, stakeholders need to consider advancing work-family balance practices to cater for both employees’ and organizational needs.
Theories and Practices on Deposit Bonds use for Environmental Management and Sustainable Development in Kenya’s Titanium Mining Projects
Authors: Omedo Geoffrey , Muigua Kariuki , Mulwa Richard , Kibugi Robert
Published: August 2022

This article analyses the use of economic incentives, particularly the Environmental Performance Deposit Bonds (EPDBs) in enhancing sustainable environmentally sound mine operations and closure. This is through a review of the environmental challenges and management practices at the Kwale Mineral Sands Project which is Kenya’s ;largest mining project. The article reviews the legal challenges around the effective regulation and application of the bonds for environmental management in upstream mining, as well as how the titanium mining project is undertaking environmental management as the mine approaches its closure deadline in 2023. It is important to note that Base Titanium, the company undertaking this project voluntarily deposited environmental reclamation deposit bonds of USD 512,000 to the environmental regulator, as financial assurance for good environmental practices. The data used in the analysis is from literature review, key informant interviews, interview schedules, and focus group discussions. Results indicate that Base Titanium is working hard to comply to the environmental standards and practices, applying the mitigation hierarchy approaches, as well as a robust mine reclamation process. The lack of a proper legal and regulatory framework governing Environmental Performance Deposit Bonds (EPDBs), as well as a non-existent deposit bonds registry systems and guidelines is a challenge to their effective institutionalization. The public and key stakeholders are also unaware of the existence of the bonds, unlike the well-laid down public participation principles in the Environmental (and Social) Impact Assessments (ESIAs) and Environmental Audits (EAs). While the study acknowledges that Base Titanium is greatly expanding the discourse on sustainable finance models for environmental management in Kenya, the lack of legal clarity and coherence is a major impediment for progressive growth in this area.

Keywords: Environmental Performance Deposit Bonds (EPDBs); Sustainable Development; Remediation; Environmental and Social Impact Assessments (ESIAs).
Short Term Renewable Energy Forecasting Based on Feed Forward Back Propagation Neural Network Strategy
Authors: H R Dhanalaxmi , G S Anitha , A V Sunil Kumar
Published: August 2022

The fundamental inputs used as a renewable energy source are wind speed and solar radiation. Both parameters are very nonlinear and depending on their surroundings. As a result, reliable prediction of these characteristics is required for usage in a variety of agricultural, industrial, transportation, and environmental applications since they reduce greenhouse gas emissions and are environmentally benign. In this study, we used a Feed Forward Back Propagation Neural Network (FFBPN) technique to predict proper data such as temperature, relative moisture, sun radiations, rain, and wind speed. The FFBPN will be trained in such a way that it can conduct hybrid forecasting with little changes to the programming codes, ranging from hourly (short term forecasting) to daily forecasting (medium term forecasting). This feature is one of the significant improvements, showing the suggested hybrid renewable energy forecasting system's high robustness. Because the hybrid forecasting system is a unique approach, the system's accuracy will be determined by comparing the findings to the corresponding values of the persistent model, a stand-alone forecasting model. Finally, the completely created system package could be sold and/or used in future research initiatives to help researcher’s analyses, validate, and illustrate their models across a variety of areas.
Automatic E-Governing System Using ML & AI
Authors: Munagala Bala Seshagiri Prasad  , B.Reddemma
Published: August 2022

Artificial Intelligence (AI) has recently advanced the state-of-art results in an ever-growing
number of domains. However, it still faces several challenges that hinder its deployment in the egovernmentapplications–both for improving the e-government systems and the e-governmentcitizens interactions. In this paper, we address the challenges of e-government systems and
propose a framework that utilizes AI technologies to automate and facilitate e-government
services. Specifically, we first outline a framework for the management of e-government
information resources. Second, we develop a set of deep learning modelsthat aim to automate
several e-government services. Third, we propose a smart e-government platform architecture
that supports the development and implementation of AI applications of e-government. Our
overarching goal is to utilize trustworthy AI techniques in advancing the current state of egovernment services in order to minimize processing times, reduce costs, and improve citizens’
satisfaction.
Kecskemét kincsei : A kecskeméti értékekre alapuló közösségfejlesztés új útjai
Authors: Hágen Ádám
Published: August 2022

A hungarikumokról szóló törvény ismertetése, a Kecskeméti Települési Értéktárról, a lakiteleki Népfőiskola által szervezett értékfeltáró kollégiumok módszeréről, valamint a helyi értékek szerepéről a településmarketingben.
Maximizing CDISC ODM-XML for Specification of Submission Documentation
Authors: Iversen Jørgen Mangor
Published: August 2022

Using ODM-XML as the instrument to represent the SDTM annotated case report form (CRF) as both machine readable and human readable metadata for specification and documentation yields vast savings in time, cost, effort, and aggravation over other ways of producing these documents. By creating the human readable versions by simply adding a translating style sheet to the ODM-XML in exactly the same ways as the familiar creation of the human readable Define-xml, those savings are self-evident as the document creation becomes completely automatic. Additionally, the style sheet automates the cumbersome task of creating links between the define-xml document and the SDTM annotated CRF document, provided the SDTM origins in the define-xml are created as named destinations. By creating one document (the PDF portable document format version) from the other (the XML version) via validated code, multiple control and verification activities can be reduced to just a few samples.
PENGARUH SEX EDUCATION TERHADAP PENGETAHUAN PENCEGAHAN PELECEHAN SEKSUAL PADA SISWA SD
Authors: Iriyani Elfrida
Published: August 2022

Latar Belakang :  Menurut data dari Perlindungan Perempuan dan Perlindungan Anak (PPPA) Kabupaten Bantul, jumlah anak yang mengalami pelecehan seksual di Kabupaten Bantul pada Tahun 2021 sejumlah 15 anak dan tahun 2022 bulan Januari sampai dengan Agustus sejumlah 2 Anak yang mengalami pelecehan seksual. Pengetahuan tentang pelecehan seksual pada anak sangat penting diberikan melalui Pendidikan kesehatan kurikulum disekolah maupun pihak sekolah bekerja sama dengan institusi kesehatan. 

Tujuan : Mengetahui dan mengkaji pengaruh sex education terhadap perubahan pengetahuan pencegahan pelecehan seksual pada siswa/i di SD Jurug

Metode : Desain penelitian menggunakan Quasi Eksperimental dengan  rancangan Pretest-Postest with Control Group dibagi menjadi 2 kelompok yaitu kelompok intervensi dan kelompok kontrol. Populasi pada penelitian ini adalah 405 siswa/i.  Teknik pengambilan sampel, cluster random sampling didapatkan kelas 2 dan Acidental sampling untuk menentukan 2 Kelompok,masing masing sejumlah 30 siswa/i. Sex Education  pada kelompok intervensi menggunakan video animasi. Alat pengumpulan data yang digunakan, kuesioner pengetahuan yang terdiri dari 25 item pernyataan yang telah dinyatakan valid menggunakan uji pearson product moment.

Hasil : Hasil penelitian menunjukkan skor pengetahuan pretest dan postest pada kelompok intervensi pretest 56,7 dan postest 86,7 mengalami peningkatan skor rata-rata sebesar 30 dari skor maksimal 100. Sedangkan skor pengetahuan pretest dan postest pada kelompok kontrol, pretest 53,3 dan postest 69 mengalami peningkatan skor rata-rata sebesar 6,7. Hasil T-Test p value < 0.05 secara statistic terdapat beda porposi pengetahuan yang bermakna antara kelompok intervensi dengan kelompok control. 

Kesimpulan : Ada pengaruh sex education terhadap tingkat pengetahuan pencegahan pelecehan seksual pada siswa SD N Jurug