bluuebunny/crossref_metadata_2025 huggingface dataset:
Dynamic modeling and performance analysis of a lower-mobility parallel robot with a rotatable platform
Authors: Liu Zhen , Yang Song , Ding Tao , Chai Ruimin
Published: December 2022

Recently, applications of high-speed, lightweight parallel robots have been gaining increasing interest. Studies have shown that their elastic that their elastic deformation during operation often affects the robot's dynamic performance. In this paper, we designed and studied a 3 DOF parallel robot with a rotatable working platform. We developed a rigid-flexible coupled dynamics model consisting of a fully flexible rod and a rigid platform by combining the Assumed Mode Method with the Augmented Lagrange Method. The driving moments under three different modes were used as feedforward in the model's numerical simulation and analysis. We conducted a comparative analysis demonstrating that the flexible rod's elastic deformation under a redundant drive is significantly smaller than that of a non-redundant one, leading to a better suppression effect on vibration. The system's dynamic performance under the redundant drive was significantly superior compared to that of the non-redundant one. Additionally, the motion accuracy was higher and the driving mode b was better than that of the driving mode c. Finally, the proposed dynamics model's correctness was verified by modeling it in Adams.
Los actos de habla de súplica en la Ilíada
Authors: Conti Luz
Published: December 2022

Este trabajo, con un enfoque pragmático, se centra en el componente verbal de las súplicas de la Ilíada. El análisis de los datos permite observar que las súplicas que no se insertan en un acto ritual presentan el mismo léxico especializado, la misma estructura y las mismas estrategias lingüísticas que aquellas otras que sí lo hacen. En unas y otras, la urgencia del hablante es el factor que determina la extensión y complejidad del acto de habla principal. Ahora bien, la práctica totalidad de estos actos de habla, sean cuales sean las circunstancias en las que se desarrollan, son de tipo directo y se formulan desde la perspectiva del interlocutor, no del hablante; presentan, además, estrategias de intensificación. Los actos de habla secundarios son utilizados por el hablante como recurso para intensificar la fuerza ilocutiva del acto de habla principal y, al mismo tiempo, para generar un clima de confianza y solidaridad. Estamos, pues, ante actos de habla que apenas tienen en consideración la amenaza de la libertad de acción del interlocutor y en los que priman los intereses del hablante y la creación de un clima de colaboración.
El influjo de Afrodita sobre los animales en el Himno homérico V
Authors: Flores Rivas María
Published: December 2022

El objetivo del artículo es examinar la inclusión de los animales en la esfera de acción de la diosa Afrodita y lo que implica para su imagen en el Himno homérico V. Mientras que, a partir del siglo V a. C., la extensión del influjo de la diosa en los animales se hizo manifiesta en los textos, en la literatura griega arcaica, donde solo dioses y mortales son susceptibles de sentir su poder, el poema constituye una excepción. En nuestro examen trazamos los principales rasgos distintivos de la divinidad y las líneas generales del himno, lo que sirve, a su vez, para contextualizar el análisis de los pasajes concretos que merecen especial atención, aquellos en los que se evidencia el poder de Afrodita sobre los animales: h.Ven., 1-6 y 68-74. A partir de ellos se analiza en particular el motivo de Afrodita como señora de los animales (πότνια θηρῶν). Por último, se extraen una serie de conclusiones.
Evidenciales e ironía en Esquines y Demóstenes
Authors: Fornieles Sánchez Raquel
Published: December 2022

El presente trabajo, centrado en los discursos Contra Timarco, Sobre la embajada fraudulenta y Contra Ctesifonte de Esquines y Sobre la Corona y Sobre la embajada fraudulenta de Demóstenes, analiza el funcionamiento de un grupo de evidenciales en enunciados irónicos para examinar la relación que los evidenciales pueden tener con la expresión lingüística de la ironía en griego antiguo.
Mecanismos de ficcionalización en la vida de Aristipo de Cirene
Authors: Grau Sergi
Published: December 2022

En el primer capítulo del influyente libro The Content and the Form. Narrative Discourse and Historical Representation (Baltimore & London 1987), Hayden White plantea que ni siquiera el formato historiográfico mínimo de la crónica y del catálogo le permite escapar de la formulación literaria que todo relato conlleva. En este estudio pretendemos demostrar que, en algunos casos, el catálogo puede incluso vertebrar los mecanismos de construcción de la ficción literaria en un relato historiográfico, particularmente en el subgénero particular de la biografía filosófica. Para ello, tomaremos como caso de estudio la Vida de Aristipo de Cirene, fundamentalmente en las Vidas y doctrinas de los filósofos ilustres de Diógenes Laercio (II 65-85): una buena parte de los apartados de su biografía responde a diversos títulos del catálogo de sus obras, precisamente aquellos de cuyo contenido poco o nada conocemos. Si añadimos a este estado de cosas que Aristipo es un personaje estereotipado de la Comedia Media, creemos que resulta posible establecer con claridad los mecanismos de ficcionalizazión literaria que operan en la narración de esta peculiar biografía.
Transformation of Architectural Design Concepts During the Early Design Phase
Authors: Al-Qemaqchi Nahedh Taha
Published: December 2022

The most difficult objective for students in an architectural design studio during the early design phase is to produce a design concept satisfyingly. This is due not just to the difficulty of selecting an appropriate method of approaching concepts, but also because of the many transformations associated with the concept's evolution over time.
This research examines the modifications that occur throughout the conceptual phase of a design session, which typically lasts a few weeks. We hypothesize that while students' conception methods have been more abstract in creating a concept, they are subject to more alterations during the early phase of design. The research conducts concept generation and transformations by monitoring a group of fourth-grade architecture students through their design process. It also tries to link those transformations to the various methods utilized by students to create their concepts. It appears that the transformations that occurred throughout the design sessions were either formal or functional-oriented. Observations clarify that those transformations are linked to the sort of concept generating, which is either abstract or concrete. By observing the design sessions, the research was able to confirm the previous hypothesis. The modifications implemented to the design concepts were obviously tied to the nature of their selection of methods of production. When compared to concrete nature concepts, abstract nature concepts were more vulnerable to transformations throughout the conceptual phase of the design task on the scope of form and function.
Engineering Students’ Perception of Using Webcams in Virtual English Classes
Authors: Pham Anh Tuan
Published: December 2022

Using webcams in virtual classes is considered as one of the most effective ways to build a sense of community and the quality of teaching and learning English through online lessons. However, whether to require learners to keep the webcams on for online learning has still been a controversial issue among teachers, learners, and administrators due to several problems. In the hope of providing a realistic view from engineering students in turning on webcams in online English lessons in higher education, this study was conducted to investigate engineering students’ perceptions of using webcams in their online English lessons. A 30-item questionnaire and in-depth structured interview were designed to collect the data from 166 engineering students. The findings reveal that both students’ and teachers’ webcams were expected to be on only when necessary. In online English lessons, most students often turned on the webcams when required by teachers. Despite facilitating interaction and understanding between teachers and students, creating a feeling of closeness, and satisfying students’ desires to see their teachers’ faces, it is essential to consider the subject’s distinctive features, students’ worries about the device's slow speed, and concerns about distracting other students when requiring both students and teachers to turn their cameras on during online English lessons.
"Qu'est-ce que l'économie ?" L'approche herméneutique de Robert L. Heilbroner
Authors: Ferraton Cyrille
Published: December 2022

Robert L. Heilbroner est l’auteur du best-seller The Worldly Philosophers (1953). Cet ouvrage à l’immense succès, qui porte sur les idées des grands économistes (Adam Smith, Karl Marx, Joseph Schumpeter, John Maynard Keynes, etc.), a très probablement contribué à masquer ses importants autres travaux sur la politique économique, le capitalisme, le socialisme, le problème environnemental, la croissance démographique. Heilbroner s’est toujours montré très critique à propos de l’orientation prise par les économistes modernes dénonçant tout particulièrement la nature a-historique et dépolitisée de leurs travaux. Il propose comme alternative une approche située et historique qui tienne compte des dimensions sociales, politiques et morales des changements économiques. Cet ouvrage, qui offre une analyse et une traduction de deux textes inédits, est une invitation à découvrir les idées d’Heilbroner, inquiet du devenir des sociétés modernes, et qui a toujours cru en la fécondité des sciences sociales.
Different Ways of Being Emotional about the Past
Authors: Trakas Marina
Published: December 2022

According to Dorothea Debus (2007), all emotional aspects related to an act of remembering are present and new emotional responses to the remembered past event. This is a common conception of the nature of the emotional aspect of personal memories, if not explicitly defended then at least implicitly accepted in the literature. In this article, I first criticize Debus’ arguments and demonstrate that she does not give us valid reasons to believe that all the emotional aspects related to a memory are present and new emotional responses to that past event. I then criticize Debus’ thesis tout court for being a direct consequence of assuming a particular conceptualization of the nature of emotions: emotions as physiological changes. Finally, based on a different conceptualization of emotions that focuses on their relational nature, I propose an alternative framework for analyzing the different possible emotional aspects of our personal memories. This leads me to conclude, contrary to Debus, that some emotional aspects of our memories are not occurrent emotions but are better conceived as a sort of quasi-emotions.
Keywords: Personal memory, emotion, quasi-emotion, appraisal.
Assessment of the Correlation between Gender and Third Molar Surgery Duration
Authors: Abdulkareem Elham Hazeim , Ali Mohammed Rhael , Rasool Hammoodi Sabah Abdul , Talib Riyam Firas
Published: December 2022

Introduction:

This study aimed to determine whether there was a difference in the duration it required to extract impacted molars based on the sex of the patient.

Methods:

In this study, 108 patients with impacted mandibular third molars who attended the Tikrit Dental College (50% of them were men, aged 18–30) were included. The impactions were classified using the Winter’s method. The surgery duration was defined as the time between incision and final suturing. Data were analyzed by point-biserial correlation and chi-squared test using R software.

Results:

The frequencies of different types of impactions were similar between males and females (P > 0.05). The most common type of impaction was mesioangular, followed by distoangular, straight, and horizontal. Negatively very weak correlation found between gender and third molar surgery duration (r = −0.15, P = 0.11, 95% CI −0.037–0.331).

Conclusion:

No significant correlation among gender and duration of surgery was found. To validate the findings of this study, further research with a larger sample size is needed.
Comparison of Microleakage of Composite and Glass Ionomer Restorations in Primary Molars Pretreated with Silver Diamine Fluoride at Two Time Intervals
Authors: Jasim Mais Zubair , Khalaf Muna Saleem
Published: December 2022

Introduction:

We aimed to evaluate the microleakage of composite resin and self-cure glass ionomer (GI) restorations in primary molars when the restorations were applied at the same day of silver diamine fluoride (SDF) treatment, and after 14 days.

Methods:

Class V cavities made at the buccal surface of 64 deciduous molars. For the experimental group of 32 teeth treated with SDF (eight teeth filled with composite and eight teeth filled with GI after 1 day and 14 days), the remaining 32 teeth without application of SDF served as a control group. All samples were then thermocycled and immersed in 2% methylene before being molded in epoxy resin to facilitate cutting into two sections. The dye penetration was then measured using a stereomicroscope at 20× magnification.

Results:

Overall model test showed statistical significant difference among study groups (P < 0.001). Post hoc test showed significant difference for usage of silver diamine fluoride (P < 0.001) and non-significant differences for type of restoration (P = 0.21) and time (P = 0.43).

Conclusion:

There was a significant reduction in microleakage following the usage of SDF before restoration over time.
Coexistence of Ectopic Tubal Pregnancy with Serous Tubal Intraepithelial Carcinoma
Authors: Chandanwale Shirish Sahebrao , Lad Yesha Parimalbhai , Bardapurkar Padmakar Rajabhau , Buch Archana Chirag
Published: December 2022

Serous tubal intraepithelial carcinoma is a precursor lesion for high-grade pelvic serous carcinoma. The incidence is 0.6%–6% in tubectomy specimens of women who are BRCA-1,2 positive or have a strong family history of breast or ovarian cancer. STIC in women who do not have BRCA-1,2 mutations or concomitant high-grade serous carcinoma is exceedingly rare. Ectopic tubal gestation coexisting with serous tubal intraepithelial carcinoma is very rarely reported. These lesions pose considerable difficulty in the diagnosis. A combination of histology and immunohistochemical expression p53 and ki67 substantially improves the reproducibility of the diagnosis. Diagnosing these lesions will help identify potential at risk patients and their families for carcinoma. Adequate prolonged follow-up for incidental serous tubal intraepithelial carcinoma is the mainstay. We report one such case of a 31-year-old female who was operated for the right tubal gestation and found to have serous tubal intraepithelial carcinoma.
Comparison of Clinical Manifestations of Patients Poisoned with Tricyclic Antidepressants Alone or with Benzodiazepine Intoxication According to the Dose of Benzodiazepines
Authors: Dorooshi Gholamali , Kermani Rasool , Sabzghabaee Ali Mohammad , Mansourian Marjan , Eizadi-Mood Nastaran
Published: December 2022

Objective:

Tricyclic antidepressants poisoning (TCA) is associated with cardiovascular complications, electrocardiographic abnormalities, and central nervous system toxicity. This study aimed to compare the clinical manifestations of poisoned patients with tricyclic antidepressants alone or with benzodiazepine (BZD) intoxication according to the dose of BZDs.

Methods:

In this case–control study, 120 patients with TCA poisoning were divided into four groups: the first group of TCA poisoning alone, the second group of TCA and BZD poisoning of <7.75 mg, the third group of TCA and B poisoning of 7.75 to 80 mg, and the fourth group of more than 80 mg of TCA and BZD poisoning. Patients' demographic, clinical, and cardiac information was extracted from their records at admission and 6 h after admission.

Findings:

Cardiac complications 6 h after referral and total cardiac complications between TCA and TCA low-dose BZD groups were significantly reduced in the low-dose BZD poisoning group. Comparison of TCA and TCA groups with a moderate dose of BZD showed a significant reduction in time six and total cardiac complications. However, due to the significant difference in TCA values between the two groups, the results are not significant. Comparing the two groups of TCA and TCA with a high dose of BZD, both 6-hour cardiac complications and total cardiac complications in the high-dose BZD group, it was significantly reduced. However, the loss of consciousness was also considerably greater in the high-dose BZD group than in the TCA group.

Conclusion:

Concomitant BZDs with TCA can reduce cardiovascular complications from TCA poisoning. However, with high doses of BZDs, there is a greater loss of consciousness.
The left heart and exact hull of an additive regular category
Authors: Henrard Ruben , Kvamme Sondre , van Roosmalen Adam-Christiaan , Wegner Sven-Ake
Published: December 2022

Quasi-abelian categories are abundant in functional analysis and representation theory. It is known that a quasi-abelian category

\mathcal{E}

is a cotilting torsionfree class of an abelian category. In fact, this property characterizes quasi-abelian categories. This ambient abelian category is derived equivalent to the category

\mathcal{E}

, and can be constructed as the heart

\mathcal{LH}(\mathcal{E})

of a

t

-structure on the bounded derived category

\mathbf{D}^b(\mathcal{E})

or as the localization of the category of monomorphisms in

\mathcal{E}

.

However, there are natural examples of categories in functional analysis which are not quasi-abelian, but merely one-sided quasi-abelian or even weaker. Examples are the category of

\operatorname{LB}

-spaces or the category of complete Hausdorff locally convex spaces. In this paper, we consider additive regular categories as a generalization of quasi-abelian categories that covers the aforementioned examples. Additive regular categories can be characterized as those subcategories of abelian categories which are closed under subobjects.

As for quasi-abelian categories, we show that such an ambient abelian category of an additive regular category

\mathcal{E}

can be found as the heart of a

\operatorname{t}

-structure on the bounded derived category

\mathbf{D}^b(\mathcal{E})

, or as the localization of the category of monomorphisms of

\mathcal{E}

. In our proof of this last construction, we formulate and prove a version of Auslander's formula for additive regular categories.

Whereas a quasi-abelian category is an exact category in a natural way, an additive regular category has a natural one-sided exact structure. Such a one-sided exact category can be 2-universally embedded into its exact hull. We show that the exact hull of an additive regular category is again an additive regular category.
Performance of olive seed ash as partial replacement of cement in concrete
Authors: Ketkukah T. S. , Anowai S. I. , Mije F. G.
Published: December 2022

The need for partial replacement of cement in concrete production has become inevitable because of adverse environmental impact of cement production, increasing cost of cement and financial benefits of utilization of waste products. This paper presents laboratory investigation of the properties of Olive Seed Ash (OSA) as partial replacement of cement in concrete. Concrete mix of 1:2:4 (Binder: Fine aggregate: Coarse Aggregate) and water-cement ratio of 0.44 were adopted in this study. Olive seed ash was used to replace cement at various levels of 0%, 5%, 10% and 15% by mass. Partial replacement of cement with OSA resulted in decrease in initial and final setting times of concrete but the values are still within acceptable limits. The results show that compressive strength, flexural strength and split tensile strength of the concrete decreased as the percentage of OSA increases. However, at 10% replacement level, the 28 days compressive strength achieved was 28N/mm2 and this value surpasses the minimum compressive strength of 25N/mm2 recognized by BS EN 1992-1-1 (2004) for reinforced concrete design. The results also showed that the water absorption decreased with increase in percentage replacement of cement with OSA portraying that replacement with olive seed ash has higher durability potentials. It is recommended that cement can be replaced with at least 10% OSA in concrete. This will reduce the cost of construction in addition to environmental advantage.
UZMANLAŞMAK GEREKLİ Mİ? GERONTOLOJİK SOSYAL HİZMET ALANINDA LİSANSÜSTÜ EĞİTİMİN KAPSAMI, TEMEL YETERLİLİKLERİ VE SINIRLILIKLARI BAĞLAMINDA MESLEKİ UYGULAMA ÇERÇEVESİ
Authors: DEMİREL Aykut Can , TAPAN Metin Gani
Published: December 2022

Yaşlılık dönemi kendisine özgü sorun ve ihtiyaçları barındıran insanın son gelişim dönemidir. Gelişen tedavi imkânları ve artan refah dünya nüfusunun hızlı bir şekilde yaşlanmasına neden olmaktadır. Yaşlı nüfusun hem sayısal hem de oransal bir biçimde artıyor oluşu yaşlılık dönemini sosyal hizmetin de içinde bulunduğu birçok disiplin ve mesleğin odağı haline getirmektedir. Sosyal hizmet uzmanları lisans programlarında farklı müracaatçı grupları ve müracaatçı düzeylerine yönelik genelci eğitim almalarına karşılık özel alarak bir alanda uzmanlaşamamaktadırlar. Nitekim sosyal hizmet uzmanlarının çalışma yaptığı gruplardan biri olan yaşlılar için de durum benzer niteliktedir. Yaşlılık döneminin kendine has biopsikososyal ve ekonomik sorun ve ihtiyaçlarına bulunmasına karşın sosyal hizmet uzmanları tarafından genelci yaklaşım ile müdahalede bulunulmaktadır. Yaşlılık döneminin kendine özgü yapısı sosyal hizmet mesleğinde akademik bilgi ve uygulamalarla bütünleştirilmiş lisansüstü eğitimi gerekli hale getirmektedir. Bu durum gerontoloji alanında, mesleki rol ve uygulama yeterlilikleri edinmiş sosyal hizmet uzmanlarının yetiştirilmesi için yeni lisansüstü eğitim programlarına ihtiyaç duyulduğunu göstermektedir. Bu kapsamda çalışmanın amacı, güncel bilgiler ışığında lisansüstü gerontolojik sosyal hizmet eğitiminin gerekliliği, eğitimin kapsamı ve sınırlılıklarının ile mesleki uzmanlaşmanın gerekliliğinin belirlenmesidir.
Sitomegalovirus, Rubella ve Toksoplasma gondii'nin Gebelerdeki Seropozitifliği ve IgG Avidite Testleri
Authors: ÇİÇEK Cemal , TÜRKEL Selçuk , AKINEDEN Altan
Published: December 2022

Amaç : Sitomegalovirus (CMV), Rubella ve Toksoplasma gondii (T.gondii) enfeksiyonları, gebe kadınlarda, özellikle ilk trimesterde ortaya çıktığında fetusta konjenital malformasyona neden olmaktadır. Bu çalışmada gebelerde CMV, Rubella ve T.gondii seropozitifliğinin belirlenmesi amaçlanmıştır.
Araçlar ve Yöntem: Temmuz 2019- Haziran 2021 tarihleri arasında, Aksaray Eğitim ve Araştırma Hastanesi Mikrobiyoloji Laboratuvarına başvuran gebelere ait; CMV, Rubella ve T. gondii seropozitiflik oranları incelendi. Ayrıca bu dönemde çalışılan avidite test sonuçlarına bakıldı.
Bulgular: Çalışmaya toplam 3218 gebe alındı. CMV, Rubella ve T.gondii IgM seropozitiflik oranları sırasıyla %1,9 , %0,8 ve %1,4 ve Ig G de bu oranlar, sırasıyla % 97.3, % 83.9, % 21 dir. CMV’de ve Rubella’da örneklerin tamamının yüksek avidite olduğu saptandı. T.gondii’ de ise % 93.7 si yüksek ve % 6.7 si düşük avidite olduğu görüldü.
Sonuç: Aksaray ilinde ilk kez bu çalışma ile CMV, Rubella ve T.gondii seropozitiflikleri belirlenmiştir. Bulduğumuz bu oranlar ülkemizdeki diğrer çalışmalarla benzerlik göstermektedir. Yaş gruplarına göre CMV IgM ve IgG’de fark bulunamamış, Rubella’da ise yaşla beraber azalma saptanmıştır. T.gondii’de ise IgG’de yaşla beraber artış olduğu görülürken, IgM de oranın değişmediği görülmüştür.
Optimization of Influential Parameters for the Degradation of Metronidazole Contained in Aquaculture Effluent via Sonocatalytic Process: Kinetics and Mechanism
Authors: Aremu O.H. , Akintayo C.O. , Nelana S.M. , Klink M.J. , Ayanda O.S.
Published: December 2022

This study examined the synthesis of a viable catalyst for the degradation of metronidazole contained in aquaculture effluent. Zinc oxide nanoparticles (n-ZnO) were synthesized via the precipitation method and calcined at 500oC in a muffle furnace to enhance the degradability properties. The morphology showed a hexagonal structure with an average particle size of 71.48 nm and the elemental composition showed a higher weight percent of 59.15% for zinc and 21.65% for oxygen. The FTIR confirms the vibrational characteristic mode of the Zn-O band at 427.21cm-1. The XRD showed a good crystallinity and the BET surface area was 8.58 m2.g-1 which showed that the n-ZnO possesses more active sites that can remove pollutants from wastewater. However, no studies have been done on the removal of MNZ in aquaculture effluent. The kinetics followed pseudo-second-order kinetics and the Langmuir-Hinshelwood model best fit the degradation process with R2, Kc, and KLH values of 0.96781, 1.486 × 10-1 mg. Lmin-1) and 8.790 × 10-2 (L.mg-1). Under the influential parameters, the percentage COD removal achieved for MNZ in aquaculture effluent was 62.6%, 89.8%, and 98.5% of MNZ at 20% ultrasonic amplitude, 5 mL 2% H2O2 and 0.02g n-ZnO within 60 min sonication time for US only, US/n-ZnO and US/n-ZnO/H2O2 systems. Hence, MNZ contained in aquaculture effluent can best be degraded with the synergetic effect of the US/n-ZnO/ H2O2 system.
Usage of Special Feeder for Small Birds
Authors: AL-RAJHİ Mohamed
Published: December 2022

This study presents the possibility of using agricultural by-products to solve the problem of high forage prices. Rice mill pre-cleaning residues are considered solid waste in Egypt, as many tonnes are produced every day. These overgrown heaps always cause an environmental problem. Most millers don't know how to dispose of it. A simple device for the purification of it to use as a supplementary feeder for small birds has been manufactured. It comprises an air supply, a hopper, a case, and two drawers (one for receiving eaten parts and the other for receiving impurities). The mixture of rice millers' residues is agitated by the air stream and floats the fine particles upwardly in the far drawer while the air escapes through the final air holes. Performance evaluation was conducted on the manufactured device with various airspeeds (1.8, 2.6, 3.2 and 4.3 m s-1), baffle angles (30, 40, and 50°) and feed rates (3.6, 5.7, 8.2, and 9.3 kg min-1). The maximum value of purifying efficiency (87.67%) is achieved at an airspeed of 4.3 m s-1, a baffle angle of 30°, and a feed rate of 3.6 kg min-1. The minimum mean of losses (0.4%) is achieved at an airspeed of 1.8 m s-1, a baffle angle of 50°, and a feed rate of 3.6 kg min-1. There is a significant increase in the purifying efficiency and a significant decrease in losses when using the purifying device, so it is recommended to use it for the purification of rice residues.
Effects of Drying Temperature on the Drying Characteristics of Parboiled Palm Nuts
Authors: EKENE GODSON Eze , OLUKA Ike , PATRICK EJIKE Ide
Published: December 2022

The effect of drying temperature on drying characteristics of cooked and fermented palm nuts were determined. The samples were processed using two methods (cooking and fermentation). The rate of drying the samples was observed to increase with corresponding increase in temperature and drying time. It was duly observed that at 70C, Tenera sample (TS), Pisifera sample (PS) and Dura sample (DS) attained their constant drying rates at 720 mins, 600 mins, and 780 mins. At 80C TS, PS and DS drying rates falls to zero at 660mins, 600 mins and 720 mins, for 90C drying temperature, TS and PS had same constant drying rate at 540 mins, DS constant drying rate was found at 600mins. For 100C TS constant drying rates was observed at 480mins while PS and DS had same constant drying rate at 420mins respectively. The effective drying of the samples was observed to occur at falling rate across the varieties and processing methods. The lower temperature (70C) decreased the drying rates while the higher temperature increased the drying rates. The average drying time for cooked samples irrespective of sample varieties were 740 mins, 620 mins, 460 mins and 500 mins for temperature range of 70-100C respectively while for the fermented samples, the average drying time were 680 mins, 660 mins, 560 mins and 440 mins at temperature range of 70-100C respectively. The regression equations were found to give the best fit with highest coefficient of variation (R2) values. Mostly all the samples irrespective of processing methods exhibited quadratic regression equations. The cooked samples displayed better dry characteristics than fermented samples.
Precipitation Intensity-Duration Occurrence Models Development for Designated Locations in the Southern Humid Rain Forest Zones of Nigeria
Authors: EMEKA-CHRİS Cordelia  Chika , OBİNECHE Christopher , UNANKA Bejoy Otuobi
Published: December 2022

This research work examined the tendencies and patterns in the rainfall in carefully chosen localities of Southwest and South-South Nigeria. Rainfall data from 1983-2014 in Ibadan, Lagos, Benin, Calabar, Port Harcourt and Warri were used for this study. Standard deviation, mean, coefficient of skewness, coefficient of kurtosis, coefficient of variation and standardized anomaly index were engaged to analyze the data and describe the distribution of rainfall in these stations. The data were analyzed using statistical package for social sciences, SPSS 17 and Minitab 16. The outcomes revealed that the maximum annual rainfall occurred at Warri station 4489.80 mm in the year 2008 and the minimum occurred at Benin 229.10 mm in 2005. Also, Benin has the maximum coefficient of variation of about 24.72%, while Port Harcourt has the minimum coefficient of variation of about 12.71%. Warri station was positively skewed indicating that it experienced frequent low rainfall values, while Port Harcourt was approximately symmetrical skewed. Warri has kurtosis coefficient of 4.45 which is highest among others. However, the patterns of rainfall in these areas are random or fluctuating. It is recommended that models built on the perceived decreasing rainfall, such as drainages, dams, have to be reviewed.
Pravična tranzicija energetike Srbije – održivost reformi u uslovima nove globalne krize
Authors:   University of Belgrade, Faculty of Technology and Metallurgy, Đukić Petar
Published: December 2022

The accomplished results of the energy transition in Serbia are in big delay, in comparison to the relevant countries in Europe and the world. Energy sector is the biggest anthropogenic factor of air pollution in Serbia, as much as all damaging emissions. Serbian climate action and green agenda have to start from the energetics. The majority of Serbian citizens are aware of that, but there are not enough organised public efforts for the structural changes in the big public companies and institutional system in the energy sector. Regardless how much updated, the environmental standards, programs and the strategies will not be efficient unless we put systematic work of designing one socially acceptable model for structural reform of the energy sector. Energy transition in today’s world is the process that leads to the rapid decarbonisation and “greening” of energy systems, in the way that permanently increases economic performances and energy efficiency, as well as one social sustainable and controlled process of the institutional changes. Serbia belongs to the group of the “leading” countries towards coal participation in electricity power production, as much as in the energy mix. Therefore, transformation and distribution loses, especially those in the electricity sector are unacceptably high. That is why it is necessary to undertake a systematic discussion about basic contents of one just and socially sustainable model of energy transition. Some foreign experiences, especially Czech Hungarian, Polish, Rumanian, Greek and Bulgarian could be useful, but it should not be enough. Large debate needs to be conducted behind the level of political confrontations, including all interested parties. The independent experts, representatives of employed in energy companies, union activists, as much as actual administration and management, citizens depending of energy companies, students and NGOs on the local and national level, all should be included in this dispute. On the level of the national executive authority and legislative power, it should be constituted one advisory body, that could strategically deal with acceptable solutions of just energy transition and its monitoring in Serbia, at list for the next two or three decades.
Uporedni prikaz proizvodnje električne energije iz uglja zemalja Evrope sa najvećim udelom: politika i projekcija proizvodnje
Authors:   University of Belgrade, Faculty of Mining and Geology, Jovančić Predrag , Ignjatović Dragan ,   University of Belgrade, Faculty of Mining and Geology, Đenadić Stevan ,   University of Belgrade, Faculty of Mining and Geology
Published: December 2022

The energy development of European countries has been based on coal for decades. The installed capacity of all coal energy capacities based on coal is over 2000 GW. Coal is still essential for electricity generation in Europe. Despite the great potential of coal, the trend is to reduce the production of electricity from coal by 2050. Given the Green Agenda and EU policy, European countries are turning to those renewable energy resources. Serbia has potentials primarily in wind, solar and biomass energy, ie hydro potential and imported gas. Serbia's coal (lignite) reserves are over 3 billion tons and enable longterm exploitation and reliable supply of thermal power plants. Germany and Poland also have very large coal reserves, but also a long-term plan to close the mine, namely Germany by 2038, and Poland by 2049.Based on all these parameters, this paper is a review paper that can make a small contribution to the creation of future energy policy of Serbia.
Primena reverznog inženjeringa pri projektovanju radnog kola Peltonove turbine
Authors:   Lola institute, Belgrade, Serbia, Radiša Radomir , Stepanović Aleksandar ,   Lola institute, Belgrade, Serbia, Manasijević Srećko ,   Lola institute, Belgrade, Serbia, Mandić Vesna ,   University of Kragujevac, Faculty of Engineering, Nešovanović Ljubomir ,   Lola institute, Belgrade, Serbia
Published: December 2022

The paper describes the innovative solution for revitalization of hydro turbines by using the techniques of reverse engineering and virtual production. The application of modern digital tools in developing, designing and producing shows substantial benefits in improving the existing hydro turbine. Model testing in these cases is not necessary to implement because as the basis is used the known geometry of existing hydro turbine runners and buckets. Digital tools allow a relatively easy way to develop new geometry, improve hydraulic performances of turbines and reach a greater level of usefulness with minimal costs. This paper aims to show optimized geometry and improvement of the Pelton turbine performance using the presented approach
Meta-Analysis Study
Authors: Romadiah Hikmah , Dayurni Popi , Fajari Laksmi Evasufi Widi
Published: December 2022

The city of Banjarmasin is one of the riverbank areas, which every year accepts new college students from various regions every day. Adjustment to the new learning environment and system creates problems for new college students. This study describes the problems new college students face from the class of 2021 at Lambung Mangkurat University. This research was conducted using mixed methods with an explanatory sequential design. The research sample was selected by purposive sampling technique. Quantitative data was collected using a problem checklist, and qualitative data were obtained using counseling interviews. Quantitative data shows that in group analysis, new college students face problems in personal 44.9%, social 59.5%, career 59.5%, and academic 60.3%. Qualitative data collected using counseling showed that these students experienced personal and social problems. The social issues are 1) difficulty managing time; (2) lack of confidence; (3) harboring issues on their own, so they get stressed quickly, (4) overthinking, (5) relationships with parents that are not good; (6) unhealthy friendships or toxic relationship; (7) there is a misunderstanding with peers; and (8) difficulty adapting to the class schedule and new environment. Problems in these two fields have an impact on the academic field, making students less motivated to learn because of the mismatch between the desires and the majors studied, difficulty dividing time, and difficulty adapting to a new environment, coupled with problems that make new students feel stressed and depressed with their study activities.
Demographics and Behaviour of Patients with Contact Lens-Related Infectious Keratitis in Singapore
Authors: Lam Janice SH , Tan Grace , Tan Donald TH , Mehta Jodhbir S
Published: December 2022

Introduction: This study aims to identify the demographics and hygiene behaviours associated with contact lens (CL)-related microbial keratitis in Singapore. Materials and Methods: The hygiene and social behaviours of lens wearers presenting with infectious keratitis in Singapore were examined using an externally validated questionnaire. Fifty-eight consecutive lens wearers who presented with infectious keratitis at Singapore National Eye Centre were surveyed using a self-administered questionnaire. Patients’ demographics, CL-related behaviour, attitude to aftercare visits and microbial study results were collected and analysed. Results: More than half (55%) of the patients surveyed were female, and the average age of the participants was 25.7 ± 6.4 years. Ninety-six percent of participants used soft CL, with the majority wearing monthly disposable lenses (74.1%). Myopia was the commonest reason for use of CL. CL overwear (81%), sleeping (50.9%) and swimming (33%) with their CL were the major non-compliant behaviours discovered. When encountered with eye discomfort as a result of lens-related infective keratitis, 83% of patients sought the advice of general medical practitioners prior to presentation at the hospital. Many (59%) patients have encountered media coverage but only 24% had any behavioural change as a result. Many patients relied on the recommendations of eyecare practitioners when purchasing disinfecting solutions (26%) and other hygiene practices. Pseudomonas Aeruginosa was the most common organism grown in 22.4% of patients while 47% of patients were culture-negative. Conclusion: Inadequate lens cleaning, poor aftercare, sleeping and swimming with CL were the major non-compliant behaviours among participants, and these are significant factors when assessing risks in acquiring CL-related infectious keratitis. General eyecare practitioners are the first-line of contact in patients presenting with keratitis symptoms and play an important role in emphasising the need for regular aftercare and good hygiene practices to CL wearers.

Key words: Contact lens, Corneal ulcer, Infective keratitis
Psychosocial Care for Cancer Patients—Too Little, Too Late?
Authors: Mahendran Rathi , Chua Joanne , Wuan Eugene , Ang Emily NK , Lim Siew Eng , Kua Ee Heok
Published: December 2022

Assessment of psychosocial and psychiatric needs is an increasingly important component of cancer care. Clinical experience with patients indicate that distress, anxiety and depression are prevalent from early stages of the illness. Strategies to enhance psychosocial care are presented and these include early identification through screening, training for healthcare staff working with cancer patients and support not only for patients but their caregivers as well.

Key words: Distress, Emotional Needs, Social Needs
Integrated Care Pathway for Hip Fractures in a Subacute Rehabilitation Setting
Authors: Chong Tsung Wei , Chan Gribson , Feng Liang , Goh Susie , Hew Agnes , Ng Tze Pin , Tan Boon Yeow
Published: December 2022

Introduction: The effectiveness of integrated care pathways for hip fractures in subacute rehabilitation settings is not known. The study objective was to assess if a hip fracture integrated care pathway at a subacute rehabilitation facility would result in better functional outcomes, shorter length of stay and fewer institutionalisations. Materials and Methods: A randomised controlled trial on an integrated care pathway for hip fracture patients in a subacute rehabilitation setting. Modified Barthel Index, ambulatory status, SF-12, length of stay, discharge destination, hospital readmission and mortality were measured. Follow-up assessments were up to 1 year post-hip fracture. Results: There were no significant differences in Montebello Rehabilitation Factor Scores and proportions achieving pre-morbid ambulatory status at discharge, 6 months and 12 months respectively. There was a significant reduction in the median length of stay between the control group at 48.0 days and the intervention group at 35.0 days (P = 0.009). The proportion of readmissions to acute hospitals was similar in both groups up to 1 year. There were no significant differences for nursing home stay up to 1 year post-discharge and mortality at 1 year. Conclusion: Our study supports the use of integrated care pathways in subacute rehabilitation settings to reduce length of stay whilst achieving the same functional gains.

Key words: Critical pathway, Length of stay, Recovery of function, Subacute care
C-arm Cone Beam Computed Tomography: A New Tool in the Interventional Suite
Authors: Raj Santhosh , Irani Farah Gillan , Tay Kiang Hiong , Tan Bien Soo
Published: December 2022

Introduction: C-arm Cone Beam CT (CBCT) is a technology that is being integrated into many of the newer angiography systems in the interventional suite. Due to its ability to provide cross sectional imaging, it has opened a myriad of opportunities for creating new clinical applications. We review the technical aspects, current reported clinical applications and potential benefits of this technology. Materials and Methods: Searches were made via PubMed using the string “CBCT”, “Cone Beam CT”, “Cone Beam Computed Tomography” and “C-arm Cone Beam Computed Tomography”. All relevant articles in the results were reviewed. Results: CBCT clinical applications have been reported in both vascular and non-vascular interventions. They encompass many aspects of a procedure including preprocedural planning, intraprocedural guidance and postprocedural assessment. As a result, they have allowed the interventionalist to be safer and more accurate in performing image guided procedures. There are however several technical limitations. The quality of images produced is not comparable to conventional computed tomography (CT). Radiation doses are also difficult to quantify when compared to CT and fluoroscopy. Conclusion: CBCT technology in the interventional suite has contributed significant benefits to the patient despite its current limitations. It is a tool that will evolve and potentially become an integral part of imaging guidance for intervention. Key words: Angiogram, Biopsy, Embolisation, Intervention, Stenting, Vascular
What Factors Really Matter? Health-related Quality of Life for Patients on Kidney Transplant Waiting List
Authors: Ong Siew Chin , Chow Wai Leng , van der Erf Saskia , Joshi Veena Dhanajay , Lim Jeremy FY , Lim Crystal , Tee Ping Sing , Lu York Moi , Kee Terence YS
Published: December 2022

Introduction: Waiting times for kidney transplant are long in Singapore. Health-related quality of life (HRQoL) of patients might be affected as a result of the stress of the long wait and the uncertainty of being called to undergo a surgical operation. This study aimed to measure the HRQoL of patients on the kidney transplant waiting list and to identify factors which could impact on the HRQoL scores in this group of patients.Materials and Methods: This was a cross-sectional study of kidney transplant waiting list patients managed at a tertiary renal unit using the SF-36. A SF-36 normative calculator was used to generate HRQoL scores for the Singapore general population matched with the study cohort’s age, gender and ethnicity. Results: There were 265 respondents with a response rate was 81%. Our study shows that HRQoL scores for the kidney transplant waiting list patients were lower than the population norms across all subscales and were clinically significant for General Health, Role Physical, Bodily Pain, Social Functioning and Mental Component Summary scores. Factors such as being Chinese, married, employed and undergoing haemodialysis predicted better HRQoL scores after adjusting for possible confounders. Age, gender, educational level, household income, history of kidney transplant, duration on the transplant waiting list and years on dialysis did not significantly influence SF-36 across all subscales scores. Conclusion: Kidney transplant waiting list patients had worse HRQoL compared to the general population. Factors such as ethnicity, marital status, employment status, and type of dialysis treatment significantly influenced patients’ perception of their HRQoL. Key words: Dialysis, Kidney failure patients, SF-36
THE EFFECT OF EXERCISE ON FEMALE CONFIDENCE
Authors: HÜR Seçil , ŞOLT Ayça , KIRCA Gökhan
Published: December 2022

Aim: The research was carried out to evaluate the confidence levels of women who exercise compared to women who do not exercise.

Method: This descriptive, cross-sectional and online study was conducted with 311 women aged 18 years and older who met the study criteria through the social media groups between April 30 and August 30, 2021. The data were gathered online using an introductory information form created by the researchers which included questions about women’s sociodemographic characteristics, health status, healthy lifestyle behaviors, and exercise status. In addition, Female Self-Confidence Scale and Google Survey Form were also used to collect data. In the evaluation of the data, number percentage distribution, chi-sguare analysis, Mann Whitney U test, and Kruskall Wallis test were used.

Results: 45% of the women who took part in the study constituted the group of the women who exercised, and 55% of the women participating in the study constituted the group of the women who did not exercise. It was determined that the mean age of the women who exercised was 31.75±9.70,and that of the women who did not exercise was 28.75±9.33.It has also been determined that the women who exercised had a higher working rate than those who did not exercise, perceived their economic situation better, had higher alchol consumption rates ,perceived their health status better, and had more time for themselves and the appearence , social relations, and inner self-confidence sub-dimensions of FSCS and the total scale score average were higher and there was a statiscally significant difference (p
Tozlu Çalışmalarda Meslek Hastalıkları ve Tozla Mücadele
Authors: KAHRAMAN Zeyneb , YÜRÜTEN ÖZDEMİR Keriman
Published: December 2022

Tozlu ortamların olduğu işyerleri çalışan sağlığı açısından birçok risk barındırmakta, solunabilir tozlar, mesleki solunum sistemi hastalıklarına yol açarak çalışanların sağlığını tehdit etmektedir. Bu bakımdan etkili bir tedavisi olmayan solunum sistemi hastalıklarına ilişkin tozla mücadele yöntemleri önem taşımaktadır. Özellikle erken tanı, hastalığın ilerleyişi ve maruziyetin belirlenerek gerekli tedbirlerin alınması açısından önemlidir. Diğer taraftan işyeri hekimi tarafından konulan tanıların sisteme yansıması, mesleki solunum sistemi hastalıklarının boyutunun belirlenmesi için gereklidir. İşyerlerinde, tozlara ilişkin risk değerlendirmesi ve proaktif önlemler ile güvenli çalışma ortamı oluşmakta ve meslek hastalıkları önlenebilmektedir. Bu çalışmada, tozların neden olduğu meslek hastalıkları incelenmiş olup korunma önlemleri ve tozla mücadele kapsamında yapılacak olan iş sağlığı ve güvenliği çalışmaları değerlendirilmiştir. Bu doğrultuda çalışma, tozların işyerlerinde iş sağlığı ve güvenliği önlemlerine uygun olarak kullanılması ve tozla mücadelede iş sağlığı ve güvenliğinin önemini göstermeyi amaçlamaktadır.