Foram encontradas 116 questões.
No laboratório de química, quatro recipientes com diferentes composições são opções para o armazenamento de uma solução de sulfato de cobre !$ (CuSO_4) !$: ferro, zinco, níquel e prata.
De acordo com os potenciais de redução descritos abaixo, em qual(is) recipiente(s) será possível armazenar a solução de !$ CuSO_4 !$, sem que ocorram reações químicas redox espontâneas?
!$ Zn^{2+}\,_{ (aq)} + 2e^- \rightarrow Zn_{(s)} !$ - 0,76 V
!$ Fe^{2+}\,_{ (aq)} + 2e^- \rightarrow Fe_{(s)} !$ - 0,44 V
!$ Ni^{2+}\, _{ (aq)} + 2e^- \rightarrow Ni_{(s)} !$ - 0,25 V
!$ Cu^{2+} \, _{ (aq)} + 2e^- \rightarrow Cu_{(s)} !$ + 0,34 V
!$ Ag^+ \, _{(aq)} + e^- \rightarrow Ag_{(s)} !$ + 0,80 V
Provas
Questão presente nas seguintes provas
La gestión hospitalaria.
Más que un servicio de salud, el hospital acaba siendo una mezcla de clínica, laboratorio y hospedaje, contando hasta con el propio restaurante. Es posible entonces afirmar que la gestión de un hospital envuelve cuestiones relacionadas a administración, hotelería, nutrición, medicina, sistema financiero, comunicación interna, marketing, exámenes de laboratorio y de imagen, servicios sociales, equipo multidisciplinario y naturalmente pacientes.
El gran objetivo del gestor hospitalario, por lo tanto, es integrar todos estos sectores, facilitando el flujo de informaciones, garantizando la mejoría de los procesos hospitalarios y haciendo la asistencia prestada a los pacientes más eficaz. Es el gestor quien decide qué innovaciones hacer, qué inversiones hacer, cómo obtener más recursos, qué sectores cerrar, etc., debiendo estar, por lo tanto, capacitado y calificado para tomar decisiones de tal porte.
En el contexto actual, la administración hospitalaria eficiente debe buscar la centralización de los servicios en el paciente y en sus necesidades. El objetivo final debe siempre ser la salud y la satisfacción de esa persona que busca el hospital en una emergencia y espera recibir la asistencia necesaria.
Pero, para lograr este fin, se necesitan diversos medios. En primer lugar, cualquier cambio debe tener objetivos claros y positivos para todo el equipo. Es necesario que todos los empleados del hospital sepan y comprendan el porqué del cambio, cuáles son las ventajas del cambio para el equipo, cuáles las ventajas para el hospital y, principalmente, cuáles son para el paciente. Solo con esta claridad cualquier cambio ocurrirá con el apoyo de todos, sin resistencias y con las sugerencias y críticas valiosas para la mejoría de los proyectos. Por lo tanto es importante que el gestor no se aísle en su rol como administrador sino que busque la adhesión de otros empleados a las decisiones de gestión, descentralizando el poder y contando con la participación directa de quien está involucrado en los procesos hospitalarios diariamente.
A propósito de los cambios que el gestor hospitalario realiza, es correcto afirmar que:
Provas
Questão presente nas seguintes provas
Read the text below and answer the following question based on it.
New Parents Don’t Get Enough Sleep for Six Years After a Child Is Born
Those first three months with a newborn can be rough, but researchers say sleep deprivation is an issue with parents for years. New parents are sometimes shocked to discover how little sleep they get in the first six months after a baby is born. They might also be discouraged to learn that their sleep patterns might not return to normal until that newborn is ready for kindergarten.
A new study published in the journal Sleep found that both parental sleep satisfaction and sleep duration sharply declined after childbirth, hitting their lowest point when a baby is 3 months old.
Women’s sleep duration and quality were far more affected than men, whether or not they breastfed their child. Women lost an average of one hour of sleep nightly compared to what they got prior to pregnancy, while men lost about 15 minutes of sleep per night.
Even four to six years after childbirth, mothers were getting 20 minutes less sleep per night than before they became pregnant, while fathers were still getting 15 minutes less sleep.
“The short-term effects of childbirth on parental sleep is well known. Our study just confirmed these effects,” Lemola told Healthline. “However, it was largely unexpected to find decreased sleep duration and sleep satisfaction six years after birth.”
Sleep was more affected among first-time parents than among parents with more than one child.
The findings were based on interviews of 4,659 parents who had a child between 2008 and 2015.
“While having children is a major source of joy for most parents, it is possible that increased demands and responsibilities associated with the role as a parent lead to shorter sleep and decreased sleep quality even up to six years after birth of the first child,” said Lemola.
Lemola said that future research would be required to determine how parents can cope with sleep loss and regain their sleep patterns sooner.
Adaptado de: <https://www.healthline.com/health-news/new-parents-dont-get-sound-sleep-for-6-years#The-bottom-line> Acessado em 04 de março de 2019.
The finding that sleep deprivation six years after birth is common
Provas
Questão presente nas seguintes provas
'Sociedade', conforme se entende no âmbito da “Sociologia”, pode definir-se como:
Provas
Questão presente nas seguintes provas
A fecundação na espécie humana depende de uma série de fatores para ter sucesso, como, por exemplo:
Provas
Questão presente nas seguintes provas
O policloreto de vinila (PVC) é uma das principais substâncias plásticas utilizadas na produção de tubulações hidráulicas. Seu monômero é relatado como uma substância carcinogênica, sendo relacionado a casos de câncer no fígado e em outros órgãos. Assinale a alternativa que corresponde à estrutura do monômero (cloroeteno) que é aplicado na síntese do PVC.
Provas
Questão presente nas seguintes provas
Por herança social, se pode entender:
Provas
Questão presente nas seguintes provas
Read the text below and answer the following question based on it.
New Parents Don’t Get Enough Sleep for Six Years After a Child Is Born
Those first three months with a newborn can be rough, but researchers say sleep deprivation is an issue with parents for years. New parents are sometimes shocked to discover how little sleep they get in the first six months after a baby is born. They might also be discouraged to learn that their sleep patterns might not return to normal until that newborn is ready for kindergarten.
A new study published in the journal Sleep found that both parental sleep satisfaction and sleep duration sharply declined after childbirth, hitting their lowest point when a baby is 3 months old.
Women’s sleep duration and quality were far more affected than men, whether or not they breastfed their child. Women lost an average of one hour of sleep nightly compared to what they got prior to pregnancy, while men lost about 15 minutes of sleep per night.
Even four to six years after childbirth, mothers were getting 20 minutes less sleep per night than before they became pregnant, while fathers were still getting 15 minutes less sleep.
“The short-term effects of childbirth on parental sleep is well known. Our study just confirmed these effects,” Lemola told Healthline. “However, it was largely unexpected to find decreased sleep duration and sleep satisfaction six years after birth.”
Sleep was more affected among first-time parents than among parents with more than one child.
The findings were based on interviews of 4,659 parents who had a child between 2008 and 2015.
“While having children is a major source of joy for most parents, it is possible that increased demands and responsibilities associated with the role as a parent lead to shorter sleep and decreased sleep quality even up to six years after birth of the first child,” said Lemola.
Lemola said that future research would be required to determine how parents can cope with sleep loss and regain their sleep patterns sooner.
Adaptado de: <https://www.healthline.com/health-news/new-parents-dont-get-sound-sleep-for-6-years#The-bottom-line> Acessado em 04 de março de 2019.
Researchers have found that sleep deprivation
Provas
Questão presente nas seguintes provas
Ao serem descartados, o glitter, canudos plásticos e demais produtos de natureza plástica, geram resíduos denominados de microplásticos (tamanho entre 1 e 5 mm). No ambiente marinho, plânctons e pequenos animais ingerem o microplástico, que percorre toda a cadeia alimentar até chegar ao ser humano. Uma das substâncias que podem ser encontradas na composição do plástico é o bisfenol A, que pode provocar câncer, infertilidade, diabetes, dentre outras patologias.
Acerca do bisfenol A, foram feitas algumas afirmações:
1) o bisfenol A é classificado como um composto aromático.
2) O bisfenol A apresenta apenas um carbono com hibridização !$ sp^3 !$.
3) A fórmula molecular do bisfenol A é !$ C_{15}H_{16}O_2 !$.
Está(ão) correta(s) a(s) afirmativa(s):
Provas
Questão presente nas seguintes provas
Um dos componentes utilizados pela indústria na formulação de enxaguantes bucais é o eucaliptol. Esse composto compõe aproximadamente 90% do óleo essencial de eucalipto. Sabendo que o eucaliptol apresenta 77,8% de carbono, 11,7% de hidrogênio e 10,5% de oxigênio, qual é a fórmula mínima do eucaliptol?
Dados: Massas molares em !$ g.mol^{-1}: H = 1 !$; !$ C = 12 !$; !$ O = 16 !$.
Provas
Questão presente nas seguintes provas
Cadernos
Caderno Container