bluuebunny/crossref_metadata_2025 huggingface dataset:
Impact and Role of Motivation Theories in Continuous Improvement Environments
Authors: Galli Brian J.
Published: October 2019

A large number of the well-performing organizations in the world are believed to have better environments that produce highly motivated employees to attain their goals. As noted in the various literatures reviewed in this study, improved working conditions in companies, such as Dell Technologies and Apple Inc., are responsible for the overall organizational success within the highly contested market. When employees are motivated, they also work towards improving the conditions within the workplaces, so the relationship between the two is mutual. In addition, pay satisfaction, job design, and internal communication of an organization contributes to its workforce motivation, which results in improved productivity for the entire organization. On the other hand, highly motivated employees encourage organizational managers to offer better payment to their organizations, to attain satisfactory job design, and to improve internal communication. Even though this study utilized few articles in the literature review, its findings significantly contribute to the modern literature. However, future studies should consider using more materials and multiple variables to improve the quality and reliability of the outcomes.
Service Sector Performance, Industry and Growth in Nigeria
Authors: Ishola Oluseun A , Olusoji Modinat O
Published: October 2019

This article extends previous empirical studies on service-industrial sector interactions and their impact on growth. It provides evidence from quarterly time series data using OLS, from 2010 to 2016 to account for new subsectors introduced from 2010 following the rebasing of the Nigerian economy. The article employs a disaggregated model to capture the individual productivities of subsectors. Series stationarity was determined with the ADF and PP test, thereafter Johansen technique was applied. The results indicate that while both services and the industrial sector contributed significantly to the economic growth (GDP) of Nigeria, some subsectors i.e. public administration, professional, scientific and technical services, transport (road, rail, pipeline, air, water), utilities (electricity, gas, and water supply, sewage, waste management) were found to be deficient. Finally, this article draws some policy implications to further strengthen the service and industrial sectors so as to maximise the potentials therein through the prescription of sector-specific policies.
Comprehensive Contemplation of Probabilistic Aspects in Intelligent Analytics
Authors: Sangwan Neeti , Bhatnagar Vishal
Published: October 2019

In Big Data analysis, the application of machine learning has proven to be a revolutionary. The systematic review of literature shows that research has been carried out on the domain of big data analytics particularly text analytics with the inclusion of machine learning approaches. This extensive survey deals with the data at hand that provides different ways and issues while combining the machine learning approaches with the text. During the course of the survey, various publications in the field of synchronous application of machine learning in text analytics were searched and studied. Classification framework is proposed as the contribution of machine learning in text analytics. A classification framework represented the various application areas to motivate researchers for future research on the application of two emerging technologies.
Ensuring the Success of Management Accounting Change in IT Departments of Public Organizations
Authors: Ertl Christoph , Herzfeldt Alexander , Floerecke Sebastian , Krcmar Helmut
Published: October 2019

Organizational changes in information technology (IT) departments of public organizations are a frequent phenomenon. In contrast to private companies or public administrations, public organizations have some unique characteristics. There is, however, only little research available on how these characteristics need to be considered when analyzing organizational changes. Based on four organizational attributes affecting IT accounting change, this contribution applies a new, holistic framework to a case study. This framework allows in-depth insights into IT management accounting departments to systematically reveal the effects that contribute to a successful organizational transformation. Future research in the field of change in IT management accounting of public organizations will have benefits from applying this new framework to analyze practical examples and, from this, to develop valuable recommendations both for researchers and practitioners.
Hotel Guests' Perceptions of Green Technology Applications, and Practices in the Hotel Industry
Authors: Memarzadeh Faranak , Anand Sulekha
Published: October 2019

Although sustainability and technology are two major concerns in the lodging industry, sustainability applications and practices are quite new and in need of more research. This study was conducted to examine and understand hotel guests' perceptions of green technology applications and practices. Data were collected in 2018 from 210 respondents via an online survey. The Technology Acceptance Model was applied to examine how ease of use and usefulness of green technology applications and practices can influence guests' booking decisions. The results showed significant positive correlations between behavioral belief and usefulness and between usefulness and intention to use green technology applications and practices. However, behavioral belief and ease of use were not correlated, nor were ease of use and intention to adopt green technology. These results demonstrate that guests do believe in the important role of green technology in sustainability and they intend to book hotels that adopt this technology.
La Barranca del Rio Santiago as Tourist and Eco Touristic Attraction for the Brand Guadalajara Guadalajara, Focused on a National Tourism
Authors: Vargas-Hernández José G , Cervantes-Guzman Jovanna Nathalie
Published: October 2019

The main purpose of this research is to show if the Barranca del Rio Santiago is a tourist attraction and ecotourism should be included in the Guadalajara brand, focused on national tourism. The research is exploratory and descriptive in nature, as it seeks to know if the Rio de Santiago Canyon is an ecotourism and tourist attraction so that it can be included in the Guadalajara brand. The analysis was conducted under a database issued by the state of Jalisco, which is the 2016 Yearbook of the State of Jalisco. SECTUR establishes in the latest competitiveness agenda of tourist destinations in Mexico that Guadalajara has a large number of natural destinations, including the Barranca del Río Santiago, this destination has a high ecological, recreational and landscaping value, which is very little known by the local population, and consequently it can become a new product for the ecotourism sector.
Leveraging on Digital Technologies to Up-Scale Tourism for Economic Growth in Africa
Authors: Efiong John E. , Adegbola Adewale S.
Published: October 2019

The application of digital technologies in various human endeavours today is unabated. This article presents information and communications technologies (ICTs) as a driving force for promoting tourism in Africa for accelerated economic growth. Descriptive methodology was used in the study. The study relied on the explored impacts of tourism on socio-economic development of the developing nations of Africa and encourages the adoption of persona models in implementing technological strategies geared toward the promotion of tourism products and services on the continent. The article advocates technology compliance by all tourism organizations and involvement of all stakeholders, agencies of governments and ICT drivers in making Africa a destination of choice to the world by adopting appropriate technological provisions.
Ameliorating the Privacy on Large Scale Aviation Dataset by Implementing MapReduce Multidimensional Hybrid k-Anonymization
Authors: Stephen Dass A.  , Prabhu J.
Published: October 2019

In this fast growing data universe, data generation and data storage are moving into the next-generation process by generating petabytes and gigabytes in an hour. This leads to data accumulation where privacy and preservation are certainly misplaced. This data contains some sensitive and high privacy data which is to be hidden or removed using hashing or anonymization algorithms. In this article, the authors propose a hybrid k anonymity algorithm to handle large scale aircraft datasets with combined concepts of Big Data analytics and privacy preservation of storing the dataset with the help of MapReduce. This published anonymized data are moved by MapReduce to the Hive database for data storage. The authors propose a multi-dimensional hybrid k-anonymity technique to solve the privacy issue and compare the proposed system with other two anonymization methods such as BUG and TDS. Three experiments were performed for evaluating classifier error, calculating disruption value and p% hybrid anonymity and estimation of processing time.
Fusion of Health Care Architecture for Predicting Vulnerable Diseases Using Automated Decision Support Systems
Authors: Abirami L.  , Karthikeyan J.
Published: October 2019

The healthcare industry is a stage which is presented with tremendous innovative headways consistently. With the perfect learning of foundation data, writing, and proposed calculation, the proposition conveys engineering for supporting computerized choices to medicinal services organizations. Electronic records are constantly gathered and sorted out to give a point by point history of patients, their sicknesses and determination plans. From the acquired data, the virtual doctoring engine (VDE) endeavors to break down the discernible attributes from the datasets utilizing the known-yet-predict (KYP) calculation to propose an ideal finding plan. This treatment plan will later be directed by a specialist for treating the patients. The exhibition of VDE framework is tried against patients experiencing cardiovascular infections. This methodology has been examined against different component extraction calculations and observed to be 18.2% progressively exact in anticipating the ideal treatment plan.
Atypical presentation of herpes simplex virus type 1 infection in paediatric burns patients in a large tertiary hospital, South Africa
Authors: Sikhosana Mpho L. , Salloo Asma , Birkhead Monica , McCarthy Kerrigan
Published: October 2019

Introduction: Herpes simplex virus has been reported in the literature to commonly complicate burn wounds. However, there is paucity of such data in the South African setting.Case presentation: Eight paediatric burns patients with ages ranging between 10 months and 5 years presented with a febrile maculopapular rash illness in a paediatric ward of a large South African tertiary hospital. The rash became vesicular in three cases, involving the limbs and face. Varicella was suspected.Management and outcome: Medical records of suspected cases were reviewed. Blood, vesicular fluid and scab samples were collected. Electron microscopy of vesicular fluid revealed herpes virus particles. Laboratory testing confirmed herpes simplex virus type 1.Conclusion: Herpes simplex virus type 1 infection can present atypically in burns patients.
Living a good life?: Considering technology and pro-social behaviour
Authors: Bentley Wessel
Published: October 2019

This article explores the notions of a good life as understood in religion and psychology. The markers of altruism and empathy are identified. The effect the use of social media has on brain chemistry is then explored and used in trying to answer the question as to whether technology (social media in particular) is hampering our ability to live a good life. The notions of the rise of narcissism and the decline in empathy are also discussed.
Small grain production as an adaptive strategy to climate change in Mangwe District, Matabeleland South in Zimbabwe
Authors: Muzerengi Tapiwa , Tirivangasi Happy M.
Published: October 2019

This article assesses the feasibility of small grains as an adaptive strategy to climate change in the Mangwe District in Zimbabwe. The change in climate has drastically affected rainfall patterns across the globe and in Zimbabwe in particular. Continuous prevalence of droughts in Zimbabwe, coupled with other economic calamities facing the Southern African country, has contributed to a larger extent to the reduction in grain production among communal farmers, most of whom are in semi-arid areas. This has caused a sudden increase in food shortages, particularly in the Mangwe District, as a result of erratic rainfall, which has negatively affected subsistence farming. This article was deeply rooted in qualitative research methodologies. Purposive sampling was used to sample the population. The researchers used key informant interviews, focus group discussions and secondary data to collect data. Data were analysed using INVIVO software, a data analysis tool that brings out themes. The results of the study are presented in the form of themes. The study established that small grains contributed significantly to addressing food shortages in the Mangwe District. The study results revealed that small grains were a reliable adaptive strategy to climate change as they increased food availability, accessibility, utilisation and stability. Despite the significant contribution of small grains to addressing food shortages, there is a need for the government to come up with a vibrant small grains policy, and government support that is visible as well as market creation for small grains. The study further recommends that small grains in semi-arid areas can be a panacea to food insecurity in Zimbabwe.
The mediating role of planned behaviour on deterrence initiatives aimed at managing local government workplace compliance
Authors: Lungisa Sithenkosi , Nzewi Ogochukwu , Olutuase Samuel O.
Published: October 2019

Orientation: Compliance culture within the South African local government context is perceived to be critical to sustainable municipality service delivery. Improving compliance culture is therefore important.Research purpose: This article therefore developed a compliance framework based on deterrence theory (DT) and the theory of planned behaviour (TPB) to identify human behavioural factors to be considered in the development and use of work procedures as a way to improve workers’ compliance with work procedures.Motivation for the study: Reports (e.g. Auditor General reports) on municipality service delivery fall short of providing a clear assessment and study of work and human behavioural dynamics in relation to compliance with work procedures.Research approach/design and method: This article tested a conceptual model focused on the effect of deterrence initiatives on workplace compliance as mediated by the theory-planned behaviour. Data were collected from 119 workers in two municipalities of the Eastern Cape Province in South Africa through a structured questionnaire and analysed using structural equation model.Main findings: Findings show that a positive attitude towards compliance to work procedures cannot be achieved through intimidation; reinforcement has a positive effect on attitude, subjective norms and perceived behavioural control (PBC). However, only the PBC aspect of the TPB explains significant mediation between deterrence and compliance.Practical/managerial implications: The study demonstrates how compliance culture can be engendered by non-intimidating deterrent measures and PBC.Contributions/value-add: The negative effect of intimidation on compliance culture and the positive effect of PBC on compliance attitude of workers are critical contributions.
Impact of the Paris system for reporting urine cytopathology on predictive values of the equivocal diagnostic categories and interobserver agreement
Authors: Bakkar Rania , Mirocha James , Fan Xuemo , Frishberg David P. , Peralta-Venturina Mariza de , Zhai Jing , Bose Shikha
Published: October 2019

Background:

The Paris System (TPS) acknowledges the need for more standardized terminology for reporting urine cytopathology results and minimizing the use of equivocal terms. We apply TPS diagnostic terminologies to assess interobserver agreement, compare TPS with the traditional method (TM) of reporting urine cytopathology, and evaluate the rate and positive predictive value (PPV) of each TPS diagnostic category. A survey is conducted at the end of the study.

Materials and Methods:

One hundred urine samples were reviewed independently by six cytopathologists. The diagnosis was rendered according to TPS categories: negative for high-grade urothelial carcinoma (NHGUC), atypical urothelial cells (AUC), low-grade urothelial neoplasm (LGUN), suspicious for high-grade urothelial carcinoma (SHGUC), and high-grade urothelial carcinoma (HGUC). The agreement was assessed using kappa. Disagreements were classified as high and low impacts. Statistical analysis was performed.

Results:

Perfect consensus agreement was 31%, with an overall kappa of 0.362. Kappa by diagnostic category was 0.483, 0.178, 0.258, and 0.520 for NHGUC, AUC, SHGUC, and HGUC, respectively. Both TM and TPS showed 100% specificity and PPV. TPS showed 43% sensitivity (38% by TM) and 70% accuracy (66% by TM). Disagreements with high clinical impact were 27%. Of the 100 cases, 52 were concurrent biopsy-proven HGUC. The detection rate of biopsy-proven HGUC was 43% by TPS (57% by TM). The rate of NHGUC was 54% by TPS versus 26% by TM. AUC rate was 23% by TPS (44% by TM). The PPV of the AUC category by TPS was 61% versus 43% by TM. The survey showed 33% overall satisfaction.

Conclusions:

TPS shows adequate precision for NHGUC and HGUC, with low interobserver agreement for other categories. TPS significantly increased the clinical significance of AUC category. Refinement and widespread application of TPS diagnostic criteria may further improve interobserver agreement and the detection rate of HGUC.
Robotic surgery in paediatric patients
Authors: Sinha Arvind , Pathak Manish , Vig Ayushi , Saxena Rahul
Published: October 2019

Introduction:

The popularity of robot-assisted surgeries has accelerated since its advent in 1990s. Recently, we procured da Vinci surgical system in our institution; and here, we present our initial experience of robot-assisted surgeries at our hospital. We also discuss the stepwise approach for successful implementation of the robotic surgical programme at our institute. Moreover, the importance of efficient use of this advanced but expensive technology has been highlighted.

Materials and Methods:

Retrospective analysis of the medical record of all the paediatric patients between the age ranges of 1–18 years who had undergone robotic-assisted laparoscopic surgery during April 2019–April 2019 was done. Medical record was reviewed for descriptive data, clinical presentation, investigations, operative details and follow-up. Statistical data were also obtained from medical superintendent office.

Results:

During April 2018–April 2019, total of 111 cases were operated across six specialities. Approximately 73% of cases (81/111) belonged to adult urology and gynaecology speciality. Less than 5% (5/111) of patients were in paediatric age group. The department of paediatric surgery performed one pyeloplasty, 3 ureteric reimplantation and 1 bladder diverticulum excision with robot assistance. The operative duration of the cases was comparable to the standard laparoscopic techniques. All patients are asymptomatic on follow-up visits.

Conclusion:

The robotic surgery is feasible in paediatric population and has favourable post-operative outcomes. Detailed planning and stepwise approach is key to the establishment of new robotic surgery programme in any institute.
Advances in soft-tissue sarcoma – There are no mistakes, only lessons to learn!
Authors: Rastogi Sameer , Manasa Parisa , Aggarwal Aditi , Kalra Kaushal
Published: October 2019

Background: In this decade the treatment of advanced sarcoma has seen many highs and lows in terms of successful trials and failed trials. This is possible due to great collaborations, newer therapies and histology focused trials. Methods: In ASCO 2019 many sarcoma trials were presented and we chose 3 challenging clinical trials that widen our perspective on soft tissue sarcoma. We have critically analyzed the data and have discussed the implications of these trials on current practice. First trial was ANNOUNCE trial which was done to confirm the efficacy of olaratumab after its dramatic success in advanced soft tissue sarcoma in a phase 2 trial. Another trial STRASS trial, which was unique because of being first successfully conducted randomized trial addressing preoperative radiotherapy in retroperitoneal soft tissue sarcoma. Third trial was phase 2 trial SARC 028 trial exploring the role of immunotherapy in pleomorphic undifferentiated sarcoma and liposarcoma subgroup. Result: ANNOUNCE trial failed to show OS benefit in olaratumab/doxorubicin arm as compared to doxorubicin/placebo arm . Based upon this FDA has revoked the approval of olaratumab leading to nihilism and disappointment amongst oncologists. In STRASS trial failed to meet the primary end point though there was a benefit in the liposarcoma subgroup in terms of abdominal recurrence free survival. There are several reasons that this trial might have failed. First, RPSs are not homogeneous population. RPSs might behave very differently as per the histopathology ranging from well differentiated LPS to leiomyosarcoma. Since the event rate in well-differentiated liposarcoma might happen late, the median follow-up of 43 months might not be sufficient. In SARC trial ORR in pleomorphic undifferentiated sarcoma (PUS) cohort was 9/40 (22.5%), while response rates in liposarcoma cohort were 4/39 (10.2%). There was poor correlation between the response and the tumor cells’ PD-L1 positivity. Simultaneously, we must not take for granted the role of pembrolizumab in PUS as the previous study (PEMBROSARC) had also showed dismal outcomes with immunotherapy. Conclusion: In this paper we discuss the intricacies of these trials and how they affect the rapidly changing landscape in advanced soft tissue sarcoma.
Clinico-epidemiological features and response in childhood acute lymphoblastic leukemia at regional cancer center of Northeast India
Authors: Saikia Bhargab Jyoti , Roy Partha Sarathi , Kumar Gaurav , Mishra Rakesh Kumar , Sarma Anupam
Published: October 2019

Introduction: Acute lymphoblastic leukemia (ALL) comprises 19.3% of all childhood cancers in Northeast India. Methods: We analyzed clinicoepidemiological features and early response to the treatment of all the cases of childhood ALL (age <15 years) diagnosed and treated at Dr. B Borooah Cancer Institute over 1 year. Results: Of 52 eligible cases, 69% were male (male:female ratio of 2.2:1) and the mean age was 7.1 years. Thirty-three children (63%) had baseline white blood cell count ≥20 × 109/L. Precursor B-cell was most the common subtype seen in 61% of children. Seven cases (14%) had high-risk (HR) cytogenetics, with t (9,22) being the most common one. Male sex and HR cytogenetics were significantly associated with poor early responses. Conclusion: ALL is a common childhood malignancy with high cure rates. However, poor socioeconomic status and the presence of higher proportions of disease-related factors lead to poor outcome in this part of the country.
Droplet digital polymerase chain reaction offers an improvisation over conventional immunohistochemistry and fluorescent in situ hybridization for ascertaining Her2 status of breast cancer
Authors: Suryavanshi Moushumi , Jaipuria Jiten , Mehta Anurag , Kumar Dushyant , Panigrahi Manoj Kumar , Verma Haristuti , Saifi Mumtaz , Sharma Sanjeev , Tandon Simran , Doval Dinesh Chandra , Das Bhudev C.
Published: October 2019

Background: Droplet digital polymerase chain reaction (DDPCR) is a recent modality for detecting Her2 expression which is quantitative, cheaper, easier to standardize, and free from interobserver variation. Purpose: The purpose of this study is to incorporate DDPCR in the current diagnostic paradigm with clinical benefit. Materials and Methods: Fifty-four consecutive patients were tested by immunohistochemistry (IHC), fluorescent in situ hybridization (FISH), and DDPCR. With FISH result as gold standard, receiver operating characteristic curves for DDPCR ratio were analyzed to label Her2-negative, equivocal, and positive cases as DDPCR score 1, 2, and 3, respectively. Proportion of patients labeled unequivocally as Her2 positive or negative was defined to have “clinically benefitted” from the test. Drawing parallel to inter-relationships between DDPCR, IHC, and FISH in the test cohort, four diagnostic pathways were defined – (1) initial IHC followed by FISH, (2) initial DDPCR followed by FISH, (3) initial IHC followed by DDPCR followed by FISH, and (4) initial DDPCR followed by IHC followed by FISH. Results: Clinical benefit of DDPCR as an initial test in the test cohort was 57%, while it was 65% if used as a second-line test among those with an initial inconclusive IHC result. Sensitivity analysis in the simulation cohort revealed that if DDPCR cost was ≤0.6 times the cost of IHC, then a three-step pathway with DDPCR upfront would near certainly prove most cost beneficial. If DDPCR cost was >0.6 but ≤2 times the cost of IHC, then a three-step pathway with DDPCR as second-line test had a higher probability to prove most cost beneficial. If DDPCR cost was >2 times the cost of IHC, then conventional pathway had a higher probability to prove most cost-effective. Conclusion: Incorporating DDPCR in the current clinical diagnostic paradigm has the potential to improve its cost-effectiveness and benefit.
Usefulness of narrow-band imaging in transurethral resection of bladder tumor: Early experience from a tertiary center in India
Authors: Malik Kanuj , Raja Anand , Mahalingam Sivakumar , Ravishankar L.S
Published: October 2019

Background: The current standard for diagnosis and treatment of urinary bladder cancer is transurethral resection of bladder tumor (TURBT) using white light guidance. Narrow band imaging (NBI) has emerged as a promising method for identifying additional bladder lesions. Various studies have been published to evaluate its sensitivity in identifying new lesions and its impact on decreasing recurrences. In this study, we evaluated our early experience using NBI in TURBTs. Aims and Objective: The aim of the study is to determine the accuracy of NBI in identifying additional malignant lesions during TURBT. Materials and Methods: We retrospectively collected data for all patients who underwent either TURBT or repeat TURBT with white light and NBI from November 2016 to July 2017 at Cancer Institute (WIA). The number of additional lesions identified using NBI was evaluated along with its correlation with the final histopathology. Results: Forty patients were analysed of which 20 underwent TURBT and 20 underwent repeat TURBT. Of these, 36 patients had complete resection of tumour. Additional lesions were detected in 6 patients (14%) by NBI of which 2 (33%) were malignant histology. The additional lesions detected were carcinoma in situ and no patient was upstaged. Conclusion: The inclusion of NBI to conventional white light TURBT increases the sensitivity for identifying additional lesions. The limitation of NBI is high false positivity and its availability. Long term follow up studies with larger subset of patients are required to evaluate its role in decreasing recurrences and justification in routine clinical practice.
Predictive biomarkers in nonsmall cell carcinoma and their clinico-pathological association
Authors: Mehta Anurag , Sriramanakoppa Nayana N. , Agarwal Poojan , Viswakarma Gayatri , Vasudevan Smreti , Panigrahi Manoj , Kumar Dushyant , Saifi Mumtaz , Chowdhary Irfan , Doval D.C , Suryavanshi Moushumi
Published: October 2019

Background: Lung cancer is the leading cause of cancer-related mortality worldwide. Genome-directed therapy is less toxic, prolongs survival and provides a better quality of life. Predictive biomarker testing, therefore, has become a standard of care in advanced lung cancers. The objective of this study was to relate clinical and pathological features, including response to targeted therapy (TT) and progression-free survival (PFS) with positive driver mutation. Materials and Methods: Archival data of nonsmall cell carcinoma patients with Stage IV disease were retrieved. Those who tested positive for one of the four biomarkers (epidermal growth factor receptor [EGFR], anaplastic lymphoma kinase [ALK], MET, and ROS) were included. Patient demographics and clinical features were reviewed. Tumor histomorphology was correlated with oncological drivers. Treatment response, PFS, and overall survival were studied in three subcohorts of patients who received computed tomography (CT), CT followed by TT and those who received TT in the first line. Results: A total of 900 patients underwent biomarker evaluation of which 288 tested positive. Frequency of the four biomarkers observed was 26.6% (229/860), 6.6% (51/775), 6.6% (5/75), and 5.1% (3/59) for EGFR, ALK, MET, and ROS-1, respectively. The median PFS for EGFR-mutated cohort was 12 months, whereas it was 21 months for ALK protein overexpressing cases. Patients treated with first-line tyrosine kinase inhibitors performed better compared to those who were switched from chemotherapy to TT or those who received chemotherapy alone (P < 0.05). Conclusion: Biomarker testing has improved patient outcome. Genome-directed therapy accords best PFS with an advantage of nearly 10 months over cytotoxic therapy.
A Graph-Theoretical Classification for Reflectable Bases
Authors: Azam Saeid , Soltani Mohammad Bagher , Tomie Masaya , Yoshii Yoji
Published: October 2019

We classify the reflectable bases of root systems of types

A

,

B

and

D

. We give a graph-theoretical characterization of reflectable bases and count the number of reflectable bases for each type. We also give a Dynkin-type characterization of reflectable bases of root systems of types

A

and

D

.
Moderate Degeneration of Kähler–Einstein Manifolds with Negative Ricci Curvature
Authors: Takayama Shigeharu
Published: October 2019

We study a family of Kähler–Einstein manifolds with negative Ricci curvature over a curve with a possibly singular special fiber. We show that if the diameters of the smooth fibers are uniformly bounded, then the special fiber has log-terminal singularities at worst after a finite base change and a birational modification.
Bifurcation Sets and Global Monodromies of Newton Nondegenerate Polynomials on Algebraic Sets
Authors: Nguyen Tat Thang , Phạm Phú Phát , Phạm Tiến-Sơn
Published: October 2019

Let

S\subset \mathbb{C}^n

be a nonsingular algebraic set and

f \colon \mathbb{C}^n \to \mathbb{C}

be a polynomial function. It is well known that the restriction

f|_S \colon S \to \mathbb{C}

of

f

on

S

is a locally trivial fibration outside a finite set

B(f|_S) \subset \mathbb{C}.

In this paper we give an explicit description of a finite set

T_\infty(f|_S) \subset \mathbb{C}

such that

B(f|_S) \subset K_0(f|_S) \cup T_\infty(f|_S),

where

K_0(f|_S)

denotes the set of critical values of the

f|_S.

Furthermore,

T_\infty(f|_S)

is contained in the set of critical values of certain polynomial functions provided that the

f|_S

is Newton nondegenerate at infinity. Using these facts, we show that if

\{f_t\}_{t \in [0, 1]}

is a family of polynomials such that the Newton polyhedron at infinity of

f_t

is independent of

t

and the

f_t|_S

is Newton nondegenerate at infinity, then the global monodromies of the

f_t|_S

are all isomorphic.
The Generalized Franchetta Conjecture for Some Hyperkähler Fourfolds
Authors: Laterveer Robert
Published: October 2019

We obtain a "generalized Franchetta conjecture" type of statement for the Hilbert squares of low genus

K3

surfaces, and for the Fano varieties of lines on certain cubic fourfolds.
Endoscopic Lifting of Simple Supercuspidal Representations of Unramified U$_N$ to GL$_N$
Authors: Oi Masao
Published: October 2019

We compute the characters of simple supercuspidal representations of a twisted GL

_N

and an unramified quasi-split unitary group U

_N

over a

p

-adic field. Comparing them by the endoscopic character relation, we determine the endoscopic lifts of simple supercuspidal representations of U

_N

to GL

_N

, under the assumption that

p

is not equal to 2.
A Path Forward: The Strategy Towards Sustainability
Authors: Fitch Patrick
Published: October 2019

-
Cooperation, Competition, and Ties That Bind
Authors: Dumont Zack
Published: October 2019

-
Weighted Poisson-Delaunay mosaics
Authors: Edelsbrunner Herbert , Nikitenko Anton Valentinovich
Published: October 2019

Slicing a Voronoi tessellation in $\mathbf{R}^n$ with a $k$-plane gives
a $k$-dimensional weighted Voronoi tessellation, also known as a power diagram
or Laguerre tessellation. Mapping every simplex of the dual weighted Delaunay
mosaic to the radius of the smallest empty circumscribed sphere whose center
lies in the $k$-plane gives a generalized discrete Morse function. Assuming the
Voronoi tessellation is generated by a Poisson point process in $\mathbf{R}^n$,
we study the expected number of simplices in the $k$-dimensional weighted
Delaunay mosaic as well as the expected number of intervals of the Morse
function, both as functions of a radius threshold. As a by-product, we obtain
a new proof for the expected number of connected components (clumps) in
a line section of a circular Boolean model in $\mathbf{R}^n$.
Об условиях, при которых вероятностное распределение однозначно определяется своими моментами
Authors: Yarovaya Elena Borisovna , Stoyanov Jordan , Kostyashin Konstantin Konstantinovich
Published: October 2019

Изучается связь между хорошо известным условием Карлемана, гарантирующим единственность определения вероятностного распределения своими моментами, и одним найденным недавно и легко проверяемым условием, связанным со скоростью роста моментов. С использованием методов асимптотической теории интегралов и привлечением свойств $W$-функции Ламберта показывается, что квадратичная скорость роста отношений последовательных моментов, как достаточное условие однозначной определенности, немногим более ограничительна, чем условие Карлемана. Выводится ряд следствий, одно из которых утверждает, что из условия Карлемана не вытекает условие Харди, хотя обратная импликация верна. Обсуждаются и другие смежные вопросы.
Origin and Spread of Evolving Artemisinin-Resistant Plasmodium falciparum Malarial Parasites in Southeast Asia
Authors: Hassett Matthew R. , Roepe Paul D.
Published: October 2019

In this review, we provide an epidemiological history of the emergence and ongoing spread of evolving Plasmodium falciparum artemisinin resistance (ARTR). Southeast Asia has been the focal point for emergence and spread of multiple antimalarial drug resistance phenomena, and is once again for evolving ARTR, also known as the “delayed clearance phenotype” (DCP). The five countries most impacted, Cambodia, Thailand, Myanmar, Laos, and Vietnam, each have complex histories of antimalarial drug use over many decades, which have in part molded the use of various artemisinin combination therapies (ACTs) within each country. We catalog the use of ACTs, evolving loss of ACT efficacy, and the frequency of pfk13 mutations (mutations associated with ARTR) in the Greater Mekong Subregion and map the historical spread of ARTR/DCP parasites. These data should assist improved surveillance and deployment of next-generation ACTs.
Natural History of Treated Subarachnoid Neurocysticercosis
Authors: Nash Theodore E. , O’Connell Elise M. , Hammoud Dima A. , Wetzler Lauren , Ware JeanAnne M. , Mahanty Siddhartha
Published: October 2019

Subarachnoid neurocysticercosis (SUBNCC) is usually caused by an aberrant proliferative form of Taenia solium causing mass effect and arachnoiditis. Thirty of 34 SUBNCC patients were treated with extended cysticidal and anti-inflammatory regimens and followed up a median of 4.2 years posttreatment (range: 15 for ≥ 4 years, 20 ≥ 2 years, 26 > 1 year, and 3 < 1 year). The median ages at the time of first symptom, diagnosis, and enrollment were 29.7, 35.6, and 37.9 years, respectively; 58.8% were male and 82.4% were Hispanic. The median time from immigration to symptoms (minimum incubation) was 10 years and the estimated true incubation period considerably greater. Fifty percent also had other forms of NCC. Common complications were hydrocephalus (56%), shunt placement (41%), infarcts (18%), and symptomatic spinal disease (15%). Thirty patients (88.2%) required prolonged treatment with albendazole (88.2%, median 0.55 year) and/or praziquantel (61.8%; median 0.96 year), corticosteroids (88.2%, median 1.09 years), methotrexate (50%, median 1.37 years), and etanercept (34.2%, median 0.81 year), which led to sustained inactive disease in 29/30 (96.7%) patients. Three were treated successfully for recurrences and one has continuing infection. Normalization of cerebral spinal fluid parameters and cestode antigen levels guided treatment decisions. All 15 patients with undetectable cestode antigen values have sustained inactive disease. There were no deaths and moderate morbidity posttreatment. Corticosteroid-related side effects were common, avascular necrosis of joints being the most serious (8/33, 24.2%). Prolonged cysticidal treatment and effective control of inflammation led to good clinical outcomes and sustained inactive disease which is likely curative.
Pe marginea unui manual de școală silvică
Authors: Cenușă Radu Leontie
Published: October 2019

În 2013, Editure, Unikum în Germania a republicat primul manual forestier, la 110 ani de la prima sa publicare. Manualul reprezintă un moment de cotitură în educația forestieră, în special pentru educația silvicultorilor implicați în administrarea Fondului Forestier Ortodox din Bucovina. Silvicultorii au fost instruiți la Școala Forestieră Codrul Cosminului, unde 420 de persoane au absolvit în cei 22 de ani de funcționare, înainte de primul război mondial. Considerăm că acesta este un document valoros care atestă complexitatea și minuțiozitatea informațiilor transmise elevilor-silvicultori de pe întregul imperiu austro-ungar. Manualul este prezentat în două volume, cu două direcții de studiu separate, cu o structură tematică diversă și foarte complexă. Cu toate acestea, manualul se distinge și prin integralitatea sa și nu numai. Stilul explicativ, claritatea textelor și rigoarea științifică îl fac remarcabil și surprinzător de modern.
Plantele medicinale în spaţiul carpato-danubiano pontic
Authors: Mazăre Georgel Constantin
Published: October 2019

Plantele medicinale („buruienile tămăduitoare”) au fost găsite de oameni, din cele mai vechi timpuri: sub versanți umbroși, pe marginile sau în adâncimea pădurilor, în covorul multicolor de pajiști și poieni, în văile umede ale râurilor și ale pâraielor. Acestea au fost singurele medicamente accesibile și gratuite. Ca și în cazul altor popoare, locuitorii așezărilor românești și-au vindecat suferințele în perioade de calm sau în perioade de restriște, când invaziile temporare ale hoardelor de popoare migratoare i-au obligat să părăsească așezările și să se ascundă în locuri secrete.
Prof. dr. Davide Pettenella, Doctor Honoris Causa al Universităţii „Ştefan cel Mare” Suceava
Authors: Facultatea de Silvicultură Suceava
Published: October 2019

Conținutul acestui articol este Laudatio prezentat de profesorul Davide Pettenella înainte de a i se acorda titlul de Doctor Honoris Causa de către Universitatea din Suceava. Davide Pettenella a promovat un acord ERASMUS între Universitatea din Padova și Universitatea Ștefan cel Mare din Suceava și personal a fost implicat în integrarea rapidă a studenților noștri în programele de master și de cercetare. Colaborarea noastră a fost extinsă o dată în cadrul proiectului internațional STARTREE FP7 privind evaluarea economică a produselor forestiere ne-lemnoase, precum și în alte grupuri de cercetare create în Acțiunile de cost E 30, E 50 și FP 1203.
Adsorption and equilibrium studies of phenol and para-nitrophenol by magnetic activated carbon synthesised from cauliflower waste
Authors: Yadav Nidhi , Narayan Maddheshiaya Dhruv , Rawat Shalu , Singh Jiwan
Published: October 2019

In this study, waste cauliflower leaves were used for adsorbent preparation. The waste cauliflower leaves were converted into activated carbon by pyrolysis at two different temperatures 250˚C and 500˚C with magnetic property. The prepared adsorbents were denoted as CAC-250 and CAC-500 and characterized by the use of scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The adsorbents were applied for the removal of phenol and PNP from their aqueous solutions. The adsorption of phenol was found very less by the application CAC-250, whereas by the application of CAC-500 the adsorption of both phenol and PNP was enhanced. The maximum adsorption of phenol was found 99% and that of PNP was found ~100% using CAC-500, with initial adsorbate concentration 5 mg/L at 25˚C. The adsorption data was analysed with Langmuir, Freundlich and Temkin isotherm models and different kinetic models that are pseudo first order, pseudo second order, Elovich, intraparticle and pore diffusion model.
Arsenic removal properties by electrolyzed and calcined manganese dioxide
Authors: Jung Yong-Jun , Kamimoto Yuki
Published: October 2019

As(V) removal properties of manganese dioxides which are commonly used for the removal of manganese in water treatment processes were evaluated in this paper. The following manganese dioxides were used: two types of powdered manganese dioxides powdered or electrolyzed MnO2 (g-structure) and calcined MnO2 (b-structure), and a granular MnO2, which was prepared by coating MnO2 onto a ceramic particle. The maximum arsenate adsorption capacity of the electrolyzed and calcined MnO2 was 2.22 and 2.26 mg-As g-1, respectively. The adsorption capacity of the granular MnO2 was 0.543 mg-As g-1 and this value corresponded to the MnO2 content (23.2%) of the granular adsorbent. When an arsenate solution of 0.1 mg-As L-1 was fed into the column (10 mm i.d.; 100 mm long) packed with the granular MnO2 at SV = 20 h-1, the column received 28.9 L of the feed solution (3,580 times the bed volume) before the breakthrough point (0.01 mg-As L-1). The adsorption isotherms for the electrolyzed and granular MnO2 were approximated by the modified Langmuir equations. On the other hand, the adsorption isotherm for the calcined MnO2 was approximated by the Freundlich equation. Based on the adsorption isotherms, the As(V) adsorption amounts at 0.01 mg-As L-1 of the equilibrium concentration were evaluated as follows: 1.27 mg-As g-1 for the electrolyzed MnO2, 1.20 mg-As g-1 for the calcined one, and 0.29 mg-As g-1 for the granular one. Since granular MnO2 has been commonly used for the removal of manganese from water treatment systems, the process can be also applied to arsenate removal.
Special Section Preface: Informative Models and Systems for Virtual Museum
Authors: Brumana R. , Tucci G. , Lerma J.L.
Published: October 2019

Special Section Preface
Carboxylic acids from limonene oxidation by ozone and hydroxyl radicals: insights into mechanisms derived using a FIGAERO-CIMS
Authors: Hammes Julia , Lutz Anna , Mentel Thomas , Faxon Cameron , Hallquist Mattias
Published: October 2019

Abstract. This work presents the results from a flow reactor study on the
formation of carboxylic acids from limonene oxidation in the presence of
ozone under NOx-free conditions in the dark. A High-Resolution Time-of-Flight acetate Chemical Ionisation Mass Spectrometer (HR-ToF-CIMS) was used in combination with a Filter Inlet for Gases and AEROsols (FIGAERO)
to measure the carboxylic acids in the gas and particle phases. The results
revealed that limonene oxidation produced large amounts of carboxylic acids
which are important contributors to secondary organic aerosol (SOA)
formation. The highest 10 acids contributed 56 %–91 % to the total
gas-phase signal, and the dominant gas-phase species in most experiments were
C8H12O4, C9H14O4, C7H10O4 and
C10H16O3. The particle-phase composition was generally more
complex than the gas-phase composition, and the highest 10 acids contributed
47 %–92 % to the total signal. The dominant species in the particle phase
were C8H12O5, C9H14O5, C9H12O5
and C10H16O4. The measured concentration of dimers bearing at
least one carboxylic acid function in the particle phase was very low,
indicating that acidic dimers play a minor role in SOA formation via
ozone (O3)/hydroxyl (OH) oxidation of limonene. Based on the various experimental
conditions, the acidic compositions for all experiments were modelled using
descriptions from the Master Chemical Mechanism (MCM). The experiment
and model provided a yield of large (C7–C10) carboxylic acid of the order of 10 % (2 %–23 % and 10 %–15 %, respectively). Significant concentrations of 11
acids, from a total of 16 acids, included in the MCM were measured with the
CIMS. However, the model predictions were, in some cases, inconsistent with
the measurement results, especially regarding the OH dependence.
Reaction mechanisms are suggested to fill-in the knowledge gaps. Using the
additional mechanisms proposed in this work, nearly 75 % of the observed
gas-phase signal in our lowest concentration experiment (8.4 ppb converted, ca. 23 % acid yield) carried out under humid conditions can be understood.
Ensemble models from machine learning: an example of wave runup and coastal dune erosion
Authors: Beuzen Tomas , Goldstein Evan B. , Splinter Kristen D.
Published: October 2019

Abstract. After decades of study and significant data collection of time-varying swash on sandy beaches, there is no single deterministic prediction scheme for wave runup that eliminates prediction error – even bespoke, locally tuned predictors present scatter when compared to observations. Scatter in runup prediction is meaningful and can be used to create probabilistic predictions of runup for a given wave climate and beach slope. This contribution demonstrates this using a data-driven Gaussian process predictor; a probabilistic machine-learning technique. The runup predictor is developed using 1 year of hourly wave runup data (8328 observations) collected by a fixed lidar at Narrabeen Beach, Sydney, Australia. The Gaussian process predictor accurately predicts hourly wave runup elevation when tested on unseen data with a root-mean-squared error of 0.18 m and bias of 0.02 m. The uncertainty estimates output from the probabilistic GP predictor are then used practically in a deterministic numerical model of coastal dune erosion, which relies on a parameterization of wave runup, to generate ensemble predictions. When applied to a dataset of dune erosion caused by a storm event that impacted Narrabeen Beach in 2011, the ensemble approach reproduced ∼85 % of the observed variability in dune erosion along the 3.5 km beach and provided clear uncertainty estimates around these predictions. This work demonstrates how data-driven methods can be used with traditional deterministic models to develop ensemble predictions that provide more information and greater forecasting skill when compared to a single model using a deterministic parameterization – an idea that could be applied more generally to other numerical models of geomorphic systems.
John D. Lyons ed., The Dark Thread. From Tragical Histories to Gothic Tales, Newark: University of Delaware Press, 2019
Authors: Woodward Servanne
Published: October 2019

Book review in French for a multi-authored volume attempting to measure the impact of the Gothic style on French literary genres.