bluuebunny/crossref_metadata_2025_split huggingface dataset:
Decline in hospitalization for all medical conditions during the COVID-19 pandemic
Authors: Cotigă Alin Cristinel , Ivan Claudiu , Nica Silvia , Zivari Mirela 
Published: January 2021

Abstract
Introduction: Hospital admissions fell dramatically in Romania during the COVID-19 pandemic partially due to urgent legislation for controlling the infection rates that influenced the selection criteria for hospitalization and also due to fear of infection with SARS-CoV-2 which resulted in avoiding medical services.
Aim: This study aimed to assess the impact of COVID-19 pandemic on the population availability to access medical services by comparing the admission rates for all departments of the University Emergency Hospital, Bucharest, from March to August 2019 and March to August 2020.
Methods: A cohort of 38.730 patients was analyzed according to hospitalization rate from March to August 2019 and March to August 2020.
Results: From March to August 2020 patients were hospitalized as a result of a medical emergency rather than an appointment, as outpatient and hospitalization rates changed dramatically. Thus, 67.4% accessed hospitalization from March to August 2019 and 32.6% accessed hospitalization from March to August 2020. The proportion of the patients admitted from the Ambulatory Care Unit decreased significantly from 44.2% in 2019 to 32.7% in 2020. Also, the structure of the patients’ profile has been affected.
Discussion: The COVID-19 pandemic period in 2020 (March-September) affected the hospitalization rate and the structure of the patients’ profile that came to the University Emergency Hospital in Bucharest, Romania.
Conclusion: The patients who would have accessed the medical health services that might have resulted in hospitalization could have resulted in out-of-hospital deaths and this should also be the focus of the public health authorities.
Electric scooter vs. motorcycle injuries – little toys with an underestimated impact
Authors: Nica Silvia , Eremia Irina-Anca , Albu Maria-Adriana , Cursaru Adrian , Albu Siegfried-Daniel 
Published: January 2021

Abstract
Introduction: The study weighs the impact of accidents involving electric scooters and motorcycles, its main purpose being that of showing the injuries produced by the use of electric scooters.
Materials and method: The retrospective study was conducted in the Emergency Unit of the University Emergency Hospital Bucharest, Romania, between 01.06.2020 and 30.09.2020, by analyzing the data from the presentation sheets and the hospital database. It followed and compared a total of 55 cases, out of which 29 patients were involved in motorcycle accidents, and 26 patients were involved in electric scooter accidents, by number, age, sex, imaging investigations, severity of injuries, hospitalization days, and the treatment of discharged patients.
General data about the number of analyzed presentations was extracted and compared to similar data from the same period of the year 2019.
Results: The study showed an increase in presentations due to electric scooter accidents. Also, most of the injuries in both types of accidents are musculoskeletal (96.5% in motorcycle accidents and 84.61% in electric scooter accidents), and the percentage of discharged patients who needed immobilization by various orthopedic devices was higher in electric scooter accidents (34.8%) than in motorcycle accidents (26%).
Discussions: The study was conducted in the middle of the COVID-19 pandemic, in an atypical situation, due to regulations imposed by the authorities.
Conclusion: There was an increase in the use of electric scooters in the summer of 2020, which resulted in an increased number of mainly orthopedic injuries, and implicitly of immobilization for discharged patients, underestimated by the population, as protective equipment is not mandatory for people aged over 16 years.
The Agricultural Reform of 1981 and the Competition for Resources Between Peasant Farms and State-Owned Farms in the 1980s
Authors: Grala Dariusz T. 
Published: January 2021

Abstract
In the economy of the Polish People’s Republic in the field of agriculture, the key resources which were a subject of competition included: land; production assets (machines, devices, tools for agricultural production, fertilizers, plant protection chemicals) and people necessary to work on farms and for farms. The command economy of the times of the People’s Republic of Poland was an example of an economy of permanent shortages, which increased in times of crises of the entire system. The collapse of 1979-1982 was such a socio-economic crisis. The Trade Union of Independent Farmers’ “Solidarity”, which was part of the great social protest movement in 1980-1981, forced a change in the communist regime’s approach to the peasantry and, together with other pressure groups, contributed to the implementation of the agricultural reform covering the entire sphere of agriculture and not only its state farm segment. The reform of 1981, initiated by the Rzeszów-Ustrzyki agreements, gradually changed the living situation of farmers and, above all, led to changes in the profitability of agricultural production and the legalization of trade in meat products at marketplaces as well as the release of prices for food products in 1989. Peasant farms won the competition with state-owned farms for capital resources – new production factors, and they expanded their land acreage (land factor). Farmers, however, were losing competition for workers in confrontation with industry and services in cities and state-owned farms, where farm workers could count on very generous social benefits.
Entrepreneurs and Entrepreneurship in the Exposé of the Prime Ministers: From Tadeusz Mazowiecki to Mateusz Morawiecki
Authors: Kamosiński Sławomir 
Published: January 2021

Abstract
The Prime Minister’s program speech, called the exposé, attracts particular attention. Its essence comes down to presenting the government’s program. In a few key words, the Prime Minister often summarizes the framework proposals of his government in terms of economic policy, social policy, education, health care, the army as well as individual social and professional groups. The words spoken by the Prime Minister, asking for confidence in the government that has just been formed set the direction for the entire Council of Ministers for subsequent years. In this regard, there is a need to examine the economic policy of every Prime Minister in office since 1989 considering entrepreneurs. What offer did the heads of government make to entrepreneurs, what kind of support could this group count on, how were the institutions supporting the economy and political institutions evaluated? The aim of this article is to find answers to the presented problems.
Analysis of Public Transport Services with Various Criteria
Authors: Braniš Marek , Šulík Matej , Takacs Jakub , Schlosser Tibor 
Published: January 2021

Abstract
With the current worldwide trend of increasing individual car traffic in urban road networks, public transport has become one of the key issues for the sustainable future of transport in cities, especially when the level of automobilization is growing rapidly. Many cities are already at the capacity limit of an existing road network. Therefore, many cities are trying to solve the question of how to improve the existing systems of public transport to become more attractive for their citizens. The quality of the public transport service from a passenger’s point of view is not only about the number of links and their occupancy, but also about the time and distance availability of stops and stations. When we were creating the general master plan for one small Slovak town, we tried to take various criteria into account. Of course, it was also necessary to carry out traffic surveys to determine the occupancy of public transport systems, but equally important was to determine the isochrones and isodistances of the passengers. The lessons learned and complications that arose from the preparation and realization of the actual analysis of the results in the creation of the general master plan are set out in the contribution.
Investigating External Debt and Exchange Rate Fluctuations in Nigeria: Any Difference with ARDL Model?
Authors: Aderemi Timothy Ayomitunde , Fagbola Lawrence Olusegun , Sokunbi Gbenro Matthew , Ebere Chidinma Edith 
Published: January 2021

Abstract
One of the contending issues in Nigeria in the recent time is external debt and exchange rate fluctuations. In view of the above, this study examined the relationship between external debt and exchange rate fluctuations in Nigeria over the period of 1981 to 2018. Consequently, the study employed Autoregressive Distribution Lag Model to address the objective of the study. The major findings that originated in this paper are as follows: external debt, debt service payment and foreign reserve have a significant positive impact on exchange rate fluctuations in the short run in Nigeria. Furthermore, based on these findings, recommendations are made for the policy makers that external debt as a means of financing budget deficit should be minimized if not totally discouraged in Nigeria because its servicing in particular and repayment put pressure on foreign exchange market in the short run and thereby leads to exchange rate fluctuations in terms of depreciation of naira in the country. Also, country’s foreign reserve should be strengthened through the implementation of aggressive export promotion policy in Nigeria.
Effectiveness of the Compound Helicopter Configuration in Rotorcraft Performance Increase
Authors: Stanisławski Jarosław 
Published: January 2021

Abstract
The article presents the results of calculations applied to compare flight envelopes of varying helicopter configurations. Performance of conventional helicopter with the main and tail rotors, in the case of compound helicopter, can be improved by applying wings and pusher propellers which generate an additional lift and horizontal thrust. The simplified model of a helicopter structure, consisting of a stiff fuselage and the main rotor treated as a stiff disk, is applied for evaluation of the rotorcraft performance and the required range of control system deflections. The more detailed model of deformable main rotor blades, applying the Galerkin method, is used to calculate rotor loads and blade deformations in defined flight states. The calculations of simulated flight states are performed considering data of a hypothetical medium class helicopter with the take-off mass of 6,000kg. In the case of both of the helicopter configurations, the articulated main rotor hub is taken under consideration. According to the Galerkin method, the elastic blade model allows to compute blade deformations as a combination of the blade bending and torsional eigen modes. Introduction of additional wing and pusher propellers allows to increase the range of operational speed over 300 km/h. Results of the simulation are presented as time-runs of rotor loads and blade deformations and in a form of disk distribution plots of rotor parameters. The simulation method can be useful in defining requirements for a high speed rotorcraft.
A Public Key Cryptosystem Using a Group of Permutation Polynomials
Authors: Singh Rajesh P. , Sarma Bhaba K. , Saikia Anupam 
Published: January 2021

Abstract
In this paper we propose an efficient multivariate encryption scheme based on permutation polynomials over finite fields. We single out a commutative group ℒ(q, m) of permutation polynomials over the finite field F

q

m. We construct a trapdoor function for the cryptosystem using polynomials in ℒ(2, m), where m =2
k
for some k ≥ 0. The complexity of encryption in our public key cryptosystem is O(m
3) multiplications which is equivalent to other multivariate public key cryptosystems. For decryption only left cyclic shifts, permutation of bits and xor operations are used. It uses at most 5m
2+3m – 4 left cyclic shifts, 5m
2 +3m + 4 xor operations and 7 permutations on bits for decryption.
On the Diophantine Equation a

x
+(a +2)
y
= z
2 Where a ≡ 5 (mod 42)
Authors: Dokchann Rakporn , Pakapongpun Apisit 
Published: January 2021

Abstract
In this paper, we show that the Diophantine equation

a

x
+(a +2)
y
= z
2,
where a ≡ 5 (mod 42) and a ∈ ℕ has no solution in non-negative integers.
Explicit Evaluation of Some Quadratic Euler-Type Sums Containing Double-Index Harmonic Numbers
Authors: Stewart Seán Mark 
Published: January 2021

Abstract
In this paper a number of new explicit expressions for quadratic Euler-type sums containing double-index harmonic numbers H
2

n
are given. These are obtained using ordinary generating functions containing the square of the harmonic numbers H

n
. As a by-product of the generating function approach used new proofs for the remarkable quadratic series of Au-Yeung

∑

n
=
1

∞

(

H

n

n

)

2

=

17

π

4

360

\sum\limits_{n = 1}^\infty {{{\left( {{{{H_n}} \over n}} \right)}^2} = {{17{\pi ^4}} \over {360}}}

together with its closely related alternating cousin are given. New proofs for other closely related quadratic Euler-type sums that are known in the literature are also obtained.
O „Drzewie” Wiesława Myśliwskiego i kilku dendrologicznych tropach literatury polskiej po 1989 roku
Authors: Kulesza Dariusz 
Published: January 2021

Autor analizuje i interpretuje najważniejszy literacki tekst dendrologiczny polskiej literatury powojennej, czyli dramat Drzewo Wiesława Myśliwskiego. Rozpoznaje go jako typowy przykład symbiotyczno-toksycznego związku między Polską i literaturą, decydującego także o tym, jak funkcjonuje w polskiej literaturze świat roślin. Sytuacja zmienia się po roku 1989. Jej konsekwencją jest dzisiejsza, ekologiczna i polityczna ekspansja ekokrytyki, którą najskuteczniej reprezentują utwory Olgi Tokarczuk. Obok nich pojawiają się w tekście inne dendrologiczne tropy reprezentowane w polskiej literaturze współczesnej między innymi przez teksty Andrzeja Stasiuka, Michała Witkowskiego, Wojciecha Wencla, Jana Leończuka i Andrzeja Sapkowskiego. Próba ich uporządkowania wydaje się zarówno potrzebna, jak i nieskuteczna.
Usaha Budidaya Itik Pedaging Jenis Hibrida dan Peking
Authors: Ridwan M , Sari R , Andika R D , Candra A A , Maradon G G 
Published: January 2021

Broiler ducks are ducks that are able to grow fast and can efficiently convert feed into meat with high nutritional value. Broiler ducks have good flesh structure and structure. The good meat structure of broilers is now becoming more popular among the people, because the taste of the meat is tasty and tasty. Broiler ducks known by the public include hybrid ducks and Peking ducks. The ever-increasing need for duck meat is not matched by the availability of enough duck meat in the market, to meet the needs of the community. This could be the potential to cultivate broilers as evidence that poultry business and agribusiness, especially ducks are still wide open with promising profit prospects. The method used is: to maintain broilers totaling 50, each of which consists of 25 hybrid ducks and peking 25 tails, then feeding and drinking, taking data through recording weighing weight, and analyzing the profitability of broiler duck farming. Based on maintenance for 42 days, the data obtained was the consumption of 3.645 g / tail hybrid rations and the consumption of 3.727g pork duck / tail, United Nations hybrid duck 1.168,8 g and peking duck 1.171,04 g, FCR hybrid duck 3.11 and Peking duck 3.18 and hybrid duck mortality 4% and Peking 12%. Weight gain, mortality, and conversion of Peking duck feed were higher than hybrid ducks.Â Keywords: hybrid duck, Peking duck, Production PerformÂ
Tata Laksana Pemeliharaan Ayam Cemani Di Peternakan NF Temanggung Jawa Tengah
Authors: Habsari I K , Nugroho B A , Azizah S 
Published: January 2021

This study was aimed to observe rearing management of cemani chicken in NF Farm, Temanggung, Central Java. NF Farms was chosen purposively due to the high population. Data collection techniques using observation techniques, direct observation of maintenance management which includes cage and chicken feed cemani. The result showed that Cemani chickens in grower period used battery cage 120 x 60 cm2 for 2-3 chickens in each cage, while in layer period used litter cage 6x4 m2 and each cage consisted of 1 male and 5 female cemani chicken. Feeding management NF farm for 1-3 days old were only given drinking water added by palm sugar. 3- 40 days old Cemani chickens were fed 511 given 25-30 g/bird/day with 22% protein content and 3,050 kkal/kg energy. Whereas for the grower period feed is divided into two, at the age of 41-75 days, chickens are fed with BR 1 and corn ratio 1:1, andÂ for 76 days- 6 months old, they are fed with ground corn, bran and BR 1 with the ratio 1: 1 : 1 as much as 80 g / head / day.Â Keywords: Cemani, Rearing management, Feeding
Teknik Pemotongan Kuku Sapi Pejantan Limousin
Authors: Gustono A , Panjaitan I , Patria C A 
Published: January 2021

Limousin is one of the beef cattle breeds of the Taurus boss which was successfully devised and developed in France. In the maintenance of one of the management that is considered is care / nail cutting. Cutting is done to maintain performance while climbing teasher cow when semen collection process, avoid or prevent the nail grows abnormally, the limping leg, footrot (nail rot) and laminitis. The purpose of this paper is to describe the technique of cutting nails in Limousin bulls. Implementation methods of data collection by observation, interviews and secondary data collection. The process of cutting the nails using a cutting knife (kamagata teito), rennet, grinding, measuring bar, chisel, small hammer, hirauci rope (rope that has been done by packing). Mechanical cut your nails done by a process handling bulls of the cage toward the maintenance of cut nails, bulls put the nail cutting table (table hooves trimming), feet and body bound to the mast nail cutting table and cutting nails.Â
Â
Analytical and Numerical Model of Aluminum Alloy Swaging Ring Design to Study the Effect on the Sealing for Piping Systems
Authors: Atak Ahmet 
Published: January 2021

In various fields of engineering, the assembly and repair of hydraulic installations are accomplished by joining the pipes. In such applications, the ring swaging method is used to connect the fittings to the pipes by means of a hydraulic hand tool. The basis to develop a swaging tool relies on the knowledge of the design parameter that influence plastic deformation of the swaging ring. In addition to build control over the design parameters, it is necessary to join pipes under severe conditions such as cryogenic vacuum and constrained space which require an intact sealing. In this study, the effect of swaging ring designs on sealing and strength has been examined and different swaging methods have been investigated by finite element modeling methods. Based on the obtained results, the analysis methodology of ring swaging and the characteristic impact of swaging ring design on the sealing of pipe connection are shown. The prime novelty of the study is to report the impact of swaging ring design and geometry on sealing efficiency of the pipe connection. The results of the study open new avenues for the development of efficient tools for designing swaging rings. Doi: 10.28991/cej-2021-03091641 Full Text: PDF
Bid Evaluation and Assessment of Innovation in Road Construction Industry: A Systematic Literature Review
Authors: Oad Pardeep Kumar , Kajewski Stephen , Kumar Arun , Xia Bo 
Published: January 2021

Objectives: This paper present a thorough understanding of bid evaluation process and assessment of innovation in road construction industry. Methods/Analysis: The research articles reviewed are based on topics of bid evaluation process, evaluation of bids in road construction industry, the indicators and techniques of bids evaluation, process of Bid evaluation in countries, innovation in road industry, and indicators of innovation in the context of road construction industry. Findings: It is widely accepted that projects related to the road construction must be accomplished in an organized manner. Literature indicates that the road constructing demands from customers and competition of assessing and evaluating tenders have been increasing rapidly. Novelty /Improvement: Challenges in developing suitable roads contribute to the inconsistency in the industry and directly demands towards physical work on a road construction project, nevertheless, a failure to accurately assessment of tenders can lead to complications for the whole project and road Construction Company. The selection of a suitable construction contractor’s surges likelihoods of successful achievement of a road construction project. This may also achieve the customer goals, and retain the project schedule on time, within the budget and achieve high quality project. Doi: 10.28991/cej-2021-03091646 Full Text: PDF
URBANIZAÇÃO DO CAMPO: ESTUDO DE CASO DA COMUNIDADE RURAL DE TRAÍRAS MUNICÍPIO DE MACAÍBA - RN
Authors: Ferreira da Silva Neto Damião , De Moura Costa Adailton , Teixeira Viana João Paulo 
Published: January 2021

O espaço rural vem passando por modificações estruturais na medida em que este começa a passar por um processo de revalorização, a partir da década de 1980, após ter passado longo período de desvalorização, momento em que o Brasil iniciou seu processo de industrialização. Tais transformações têm trazido ao campo nova funcionalidade e ocupado a população rural em atividades não-agrícolas, e emergência de famílias pluriativas. As transformações do espaço rural não implicam somente na funcionalidade, mas têm ocorrido mudanças no espaço físico, com a melhoria da infraestrutura e dos serviços básicos, como também mudanças nos hábitos e na cultura da população rural, a descrição da comunidade e o levantamento das condições socioeconômicas locais. Como resultado, conseguimos identificar que vem ocorrendo melhorias na infraestrutura da comunidade em estudo, mas que ainda necessita de benfeitorias no setor social e econômico.<strong> </strong><div id="janelamailtopopupMail" style="z-index: 1;"><div id="janelamailtocontentPopupModalMail"><div id="janelamailtomailClosePopup"> </div><div id="janelamailtopopupMailModal">What do you want to do ?</div><a id="janelamailtobuttonOpenEmailAppNew">New mail</a><button id="janelamailtoclipboardButtonCopyEmail">Copy</button><textarea id="janelamailtotoSelectClipboardCopyText"></textarea></div></div><div><img src="/index.php/contextogeografico/editor/viewMetadata/" alt="" /></div><div id="janelamailtopopupMail" style="z-index: 1;"><div id="janelamailtocontentPopupModalMail"><div id="janelamailtomailClosePopup"> </div><div id="janelamailtopopupMailModal">What do you want to do ?</div><a id="janelamailtobuttonOpenEmailAppNew">New mail</a><button id="janelamailtoclipboardButtonCopyEmail">Copy</button><textarea id="janelamailtotoSelectClipboardCopyText"></textarea></div></div><div><img src="/index.php/contextogeografico/editor/" alt="" /></div><div id="janelamailtopopupMail" style="z-index: 1;"><div id="janelamailtocontentPopupModalMail"><div id="janelamailtomailClosePopup"> </div><div id="janelamailtopopupMailModal">What do you want to do ?</div><a id="janelamailtobuttonOpenEmailAppNew">New mail</a><button id="janelamailtoclipboardButtonCopyEmail">Copy</button><textarea id="janelamailtotoSelectClipboardCopyText"></textarea></div></div><div><img src="/index.php/contextogeografico/editor/" alt="" /></div><div id="janelamailtopopupMail" style="z-index: 1;"><div id="janelamailtocontentPopupModalMail"><div id="janelamailtomailClosePopup"> </div><div id="janelamailtopopupMailModal">What do you want to do ?</div><a id="janelamailtobuttonOpenEmailAppNew">New mail</a><button id="janelamailtoclipboardButtonCopyEmail">Copy</button><textarea id="janelamailtotoSelectClipboardCopyText"></textarea></div></div><div><img src="/index.php/contextogeografico/editor/" alt="" /></div>