This document discusses optical fiber communication and fiber cable repairing. It describes the tools and equipment used for fiber splicing including a splicer, bolt cutters, scissors, and cleaver. The document outlines the types of splicing including mechanical splicing using epoxy resin or V-grooves and fusion splicing using micro-plasma burners. Fusion splicing allows for very low insertion loss compared to mechanical splicing. Potential splicing losses and manufacturers of splicing machines are also mentioned.
El documento describe un estudio para estimar el impacto potencial del cambio climático en los nichos ambientales de especies vegetales de interés en Colombia. Las actividades incluyen compilar especies de interés, identificar algoritmos de modelación, y proyectar escenarios climáticos futuros para estimar qué proporción de nichos podrían verse afectados y proveer una evaluación del impacto en las especies. El estudio colabora con varias instituciones para producir datos climáticos y modelar los resultados.
Malposition of unerupted mandibular second premolar in children with palatall...EdwardHAngle
Objective: To test the hypotheses that (1) the distal angulation of unerupted mandibular premolar
(MnP2) is significantly greater in children with palatally displaced canines (PDC) than in those in
a control sample; and (2) delayed tooth formation is significantly more frequent in children with
both malposed MnP2 and PDC than in children with PDC only.
Materials and Methods: We examined retrospectively panoramic radiographs from 43 patients
with PDC who had no previous orthodontics. A control sample consisted of age- and sex-matched
patients. The distal angle formed between the long axis of MnP2 and the tangent to the inferior
border was measured. Dental age was evaluated using the Koch classification.
Results: A significant difference was observed between the mean inclination of the right side
MnP2 in the PDC group (75.4 degrees) and that of the control group (85.8 degrees). This difference
was highly statistically significant (P < .0001). The same evaluation was carried out for the
left side, with similar results. The average dental age was found to be delayed in patients who
showed both abnormalities (malposed MnP2 and PDC) compared with patients who showed the
PDC anomaly only.
Conclusion: Both hypotheses are retained. Statistically, PDC and MnP2 malposition are significantly
associated suggesting a common genetic etiology, despite taking place on opposite jaws.
While the presence of PDC or MnP2 anomaly has been associated with a delay in tooth formation,
we find the presence of both anomalies to show a more profound delay. Our findings suggest a
delay in tooth formation as a possible common genetic mechanism for these 2 malposition anomalies.
This document discusses IAS 28, which provides guidance on accounting for investments in associates. An associate is an entity over which an investor has significant influence, generally through ownership of 20% or more of the voting power. The equity method of accounting should be used, where the investment is initially recognized at cost and adjusted thereafter for the investor's share of profit or loss and other comprehensive income of the associate. Disclosures are required regarding the nature of investments in associates and any restrictions on transferring funds or disposing of assets.
Optical fiber communication versus wireless communicationChanchal Kohli
Optical fiber uses glass or plastic threads to transmit data using pulses of light. It has advantages over wireless communication like enormous bandwidth, low transmission loss, and electrical isolation. Optical fiber communication systems consist of an optical transmitter, fiber cable, and optical receiver. Multimode fiber supports multiple light paths while single mode fiber only supports one light path. Common applications include telecommunications, computer networking, and medical systems. Wireless communication transmits data using electromagnetic waves without wires. It provides mobility and flexibility but has limitations like lower bandwidth and signal interference. Common systems are cellular networks, wireless LANs, satellite networks, and wireless personal area networks.
Zebrafish as a model organism for regeneration studiesDariyus Kabraji
The zebrafish is a useful model for studying organ regeneration due to its ability to regenerate complex tissues like fins, heart muscle, and neurons. It can regrow amputated fins through blastema formation and proliferation. During heart regeneration, cardiomyocytes dedifferentiate and proliferate to replace damaged tissue. In the retina, brain and spinal cord, radial glial cells act as progenitors to regenerate neurons. New genetic techniques allow manipulation of specific genes to better understand regeneration in the zebrafish.
2. Этот праздник к нам идет
Раннею весною,
Сколько радостей несет
Он всегда с собою!
Ледяные горы ждут,
И снежок сверкает,
Санки с горок вниз бегут,
Смех не умолкает.
Дома аромат блинов
Праздничный чудесный,
На блины друзей зовем,
Будем есть их вместе.
Шумно, весело пройдет
Сырная Седмица,
А за ней - Великий пост,
Время, чтоб молиться.
3. Но самое главное - это
блины! Блин - символ
солнца. Такой же
круглый и горячий.
С пылу с жару
подаются они на стол.
С маслом, со сметаной,
с икрой, грибами,
севрюжиной или
осетриной - выбирай на
любой вкус. А, наевшись
досыта – гуляй и
развлекайся!
4. Утро... ПОНЕДЕЛЬНИК... Наступает "ВСТРЕЧА".
Яркие салазки с горочек скользят.
Целый день веселье. Наступает вечер...
Накатавшись вволю, все блины едят.
5. "ЗАИГРЫШ" беспечный - ВТОРНИКА отрада.
Все гулять, резвиться вышли, как один!
Игры и потехи, а за них - награда:
Сдобный и румяный масленичный блин!
6. Тут СРЕДА подходит - "ЛАКОМКОЙ" зовётся.
Каждая хозяюшка колдует у печи.
Кулебяки, сырники - всё им удаётся.
Пироги и блинчики - всё на стол мечи!
7. А в ЧЕТВЕРГ - раздольный "РАЗГУЛЯЙ" приходит.
Ледяные крепости, снежные бои...
Тройки с бубенцами на поля выходят.
Парни ищут девушек - суженых своих.
8. ПЯТНИЦА настала - "ВЕЧЕРА у ТЁЩИ"...
Тёща приглашает зятя на блины!
Есть с икрой и сёмгой, можно чуть попроще,
Со сметаной, мёдом, с маслом ели мы.
9. Близится СУББОТА - "ЗОЛОВКИ УГОЩЕНИЕ".
Вся родня встречается, водит хоровод.
Праздник продолжается, общее веселье.
Славно провожает Зимушку народ!
10. ВОСКРЕСЕНЬЕ светлое быстро наступает.
Облегчают душу все в "ПРОЩЁНЫЙ ДЕНЬ".
Чучело соломенное - Зимушку - сжигают,
Нарядив в тулупчик, валенки, ремень...